Increasing math scores: Why Ontario needs early numeracy screening

Source: The Conversation – Canada – By Michael Slipenkyj, Postdoctoral Fellow, Math Lab, Department of Cognitive Science, Carleton University

Ontario’s 2024-25 Education Quality and Accountability Office (EQAO) standardized test results were recently released, and almost half (49 per cent) of Grade 6 students in English-language schools didn’t meet the provincial standard in mathematics.

These unsatisfactory results should not come as a surprise, and they cannot be attributed to lost time during COVID-19.

Ontario students have been struggling in math for many years. For instance, in 2018-19 and 2015-16, respectively, 52 per cent and 50 per cent of Grade 6 students failed to meet the provincial standard. What can be done to change this situation?

Setting stronger foundations in early math

We know from research in mathematical cognition that children’s early number knowledge (for example, at four-and-a-half years old) predicts their mathematical achievement later in school.




Read more:
New research shows quality early childhood education reduces need for later special ed


Because later learned skills build on earlier ones, kids who fall behind early may never catch up. Just as children need to get comfortable putting their face in the water before they can learn the front crawl, they need to become proficient with counting before they can learn addition and subtraction.

The best ways to support math learning are to:

  1. Provide lessons with clear skill progressions;

  2. Conduct regular assessments so teachers know what their students are learning; and

  3. Ensure that students get plenty of targeted practice on skills they have not yet mastered.

We should equip our students with solid foundational numeracy skills in the early years and check that they are on track before the first EQAO tests in Grade 3.

Roots of the problem, solutions

Clearly, policy initiatives like the $60 million “renewed math strategy”, making new teachers pass a math test and the “back to the basics” math curriculum, have done little to improve low math achievement.

Young children with educators seen in a classroom at tables doing various activities with building blocks and other materials.
The skills that children learn later are scaffolded upon earlier learning.
(Allison Shelley/The Verbatim Agency for EDUimages), CC BY-NC

After the 2024-25 results were announced, the Elementary Teachers’ Federation of Ontario released a statement calling for EQAO funding to be redirected to classrooms, saying “EQAO assessments shift accountability from the government’s chronic underfunding of public education to educators.”

The province agrees that math scores are too low. In the aftermath of the results release, Ontario Education Minister Paul Calandra held a news conference to say the results weren’t “good enough.” He announced the formation of a two-person advisory committee to review the situation and provide “practical recommendations that we can put into action.”

Early universal numeracy screening

As researchers studying mathematical cognition and learning, we have an evidence-based recommendation to help improve children’s math scores: schools should use universal screening to identify and track students’ numeracy learning much earlier than Grade 3 (when the first EQAO tests are given).

Screeners that assess foundational numeracy skills and other forms of assessment are critical for evaluating gaps in students’ numerical knowledge and providing them with targeted supports before they start to fall behind.

Instead of waiting for provincial results at the end of Grade 3 to identify struggling learners, we need to equip students with necessary skills and knowledge earlier.

Measuring foundational skills is critical for mathematics because more advanced skills like geometry, algebra, calculus require students to have fluent access to foundational knowledge. For example, fluent division skills support converting fractions to decimals (for instance, one quarter equals 0.25).

A page showing children's colouring covering various squares coloured to express different fractions.
More complex skills like fractions are assessed in later grades.
(Jimmie Quick/Flickr), CC BY

Extensive store of knowledge needed

Children who lack foundational skills will continue to struggle across grades as the expectations become more advanced. Research has found that kindergarteners with lower counting skills are more likely to under-perform in math in Grade 7. These basic skills have also been linked to other metrics of academic success.

For example, children with strong foundational numerical skills are more likely to take advanced math classes in high school or pursue post-secondary education. Importantly, students who acquire foundational skills also develop more confidence in their mathematics abilities and are less likely to develop math anxiety.

By Grade 6, students need to have acquired a rich and extensive store of knowledge for learning the more complex math required in later grades.

A child at a desk looking happy doing work.
Students who acquire foundational skills develop more confidence in their math abilities.
(Bindaas Madhavi/Flickr), CC BY-NC

The right to calculate

Human rights commissions have called for changes in education to ensure the “right to read” is protected for all students, including those with reading disabilities. We believe all students also have a right to high-quality math instruction — the right to calculate.

In efforts to connect math researchers and educators, we established the Assessment and Instruction for Mathematics (AIM) Collective. The AIM Collective is a community of researchers and educators, from universities and school districts across the country, committed to improving early math education in Canada.

Universal screening is one of the topics that AIM members have discussed in depth, because teachers often have mixed reactions to policies on screening.

However, educators we’ve partnered with have found that early math screening is a helpful teaching tool that helps educators target instruction to support children’s math learning.

Reaching full potential in math

Alberta now mandates universal numeracy screening. The Math Lab at Carleton University, where we are engaged in research, was involved in constructing grade-specific numeracy screeners for students in kindergarten to Grade 3 now in use in Alberta as well as other provinces.

Universal literacy screening is already mandated for students in Ontario from senior kindergarten to Grade 2. Initiating early universal numeracy screening is one step towards ensuring Ontario students reach their full potential in math.

Critically, screening must be accompanied by targeted support. Helping students reach their full math potential will contribute to a thriving Ontario.

As such, we call on the government to invest more in numeracy screening and earlier educational supports for struggling students.

The Conversation

Michael Slipenkyj is partly supported by a Mitacs internship with Vretta Inc., a Canadian educational technology company.

Heather P. Douglas has developed an early numeracy screener that is being used in four provinces in Canada. She collaborates with Vretta Inc., an educational technology company on a project to develop a digital version of the early numeracy screener. The project is funded by a Micas Accelerate grant.

Jo-Anne LeFevre has developed an early numeracy screener that is being used in four provinces in Canada. She collaborates with Vretta Inc., an educational technology company on a project to develop a digital version of the early numeracy screener, funded a Mitacs Accelerate grant.

Rebecca Merkley collaborates with Vretta Inc., a Canadian educational technology company. The project is funded by a Mitacs Accelerate grant titled: “A Research-Driven Approach to Assessment in Early Math Education”.

ref. Increasing math scores: Why Ontario needs early numeracy screening – https://theconversation.com/increasing-math-scores-why-ontario-needs-early-numeracy-screening-273339

Images de nos corps, likes et survie : Le réconfort dans la masse virtuelle

Source: The Conversation – in French – By Isaac Nahon-Serfaty, Associate Professor, L’Université d’Ottawa/University of Ottawa

Dans un monde de plus en plus façonné par les écrans et les réseaux sociaux, où nos interactions se déroulent à distance, une question fondamentale s’impose : la « masse » humaine s’est-elle dissoute dans le cyberespace, ou bien persiste-t-elle sous de nouvelles formes, numériques et immatérielles ?

Pour répondre à cette question, il convient de revenir au chef-d’œuvre du prix Nobel de Littérature (1981), le Juif séfarade né en Bulgarie Elias Canetti, Masse et Puissance (1960).

Lorsque Canetti rédige cet essai, ses références sont les deux extrêmes des phénomènes de masse du XXe siècle : le nazi-fascisme, vaincu lors de la Seconde Guerre mondiale, et le communisme soviétique, encore bien vivant et puissant à cette époque. De plus, les médias de masse sont en pleine expansion, notamment la télévision, et son effet persuasif, support idéal pour les figures charismatiques, comme l’a démontré le débat entre J. F. Kennedy et Richard Nixon en 1960. On assiste enfin à l’émergence de la culture pop sous l’impulsion d’Elvis Presley et des Beatles.

Professeur titulaire de communication à l’Université d’Ottawa, j’étudie depuis un certain temps comment les réseaux numériques contribuent au façonnement de nos émotions autour des sujets comme la santé, le terrorisme, la politique et la nature. L’Opus Magnus de Canetti m’a aidé à mieux comprendre notre écosystème communicationnel et affectif.

Cet article fait partie de notre série Des livres qui comptent, dans laquelle des experts de différents domaines abordent ou décortiquent les ouvrages qu’ils jugent pertinents. Ces livres sont ceux, parmi tous, qu’ils retiennent lorsque vient le temps de comprendre les transformations et les bouleversements de notre époque.


La densité des foules

La thèse de Canetti ne se contente toutefois pas de traiter d’un problème contemporain. Elle cherche à remonter aux racines du phénomène humain du clan, de la tribu et d’autres manifestations de la vie collective. Son point de départ est le corps. Les premières lignes de Masse et Puissance valent la peine d’être lues :

Il n’est rien que l’homme craigne plus que le contact de l’inconnu […]. L’homme tend toujours à éviter le contact physique avec tout ce qui est étrange. Dans l’obscurité, la peur d’un contact inattendu peut se muer en panique […]. C’est seulement au sein d’une foule que l’homme peut se libérer de cette peur d’être touché. C’est la seule situation dans laquelle la peur se change en son contraire. La foule dont il a besoin est la foule dense, où les corps se pressent les uns contre les autres ; une foule, aussi, dont la constitution psychique est également dense, ou compacte, de sorte qu’il ne remarque plus qui le presse. Dès qu’un homme s’est abandonné à la foule, il cesse de craindre son contact.

La foule à l’ère numérique

Ce contact entre les corps a-t-il une quelconque importance dans les communications virtuelles d’aujourd’hui ? Pour répondre à cette question, il faut d’abord clarifier ce que nous entendons par le virtuel.

Le philosophe franco-canadien Pierre Lévy, spécialiste des phénomènes collectifs à l’ère d’Internet, affirmait en 2007 qu’il existe un lien indissoluble entre le virtuel et le réel. Selon Lévy, la condition virtuelle renvoie au symbole tandis que le réel renvoie au matériel. Mais il n’y a aucun moyen d’accéder au physique ou au matériel sans se référer au virtuel ou au symbolique.




À lire aussi :
Les réseaux sociaux vous incitent à adopter ces trois comportements primitifs et violents


Cette affirmation sur la prépondérance du symbolique comme médiateur virtuel face au « réel » et même au physique est plus évidente que jamais dans le monde hypermédiatisé dans lequel nous avons tous et toutes à produire et à diffuser des symboles (p.e : les photos, les emojis, les « likes », les textes).

À notre époque de communications virtuelles (toute communication est virtuelle, car elle implique toujours une médiation symbolique), le corps a de nouveau pris une place prépondérante. Son aspect symbolique est plus présent que jamais dans les millions d’images de corps que les gens produisent et consomment via les médias sociaux.

De plus, les conséquences matérielles de ces communications virtuelles se traduisent en actions corporelles, et pas seulement en représentations mentales. Les exemples abondent : manger à partir de la recommandation d’un aliment ou d’une marque sur une plate-forme numérique, avoir des relations sexuelles selon les désirs suscités par des contenus médiatisés, faire de l’exercice en suivant les conseils d’un influencer, ou voyager à partir de l’expérience d’un autre voyageur partagée dans les réseaux numériques.


Déjà des milliers d’abonnés à l’infolettre de La Conversation. Et vous ? Abonnez-vous gratuitement à notre infolettre pour mieux comprendre les grands enjeux contemporains.


Mouvement centrifuge et centripète

Canetti établit une distinction entre les foules fermées, celles qui tendent à se limiter, et les foules ouvertes, celles qui cherchent à s’étendre. Les collectifs numériques peuvent également être décrits comme fermés ou ouverts.

Lorsque les membres d’une communauté virtuelle se comportent comme une tribu (un terme que les experts en marketing aiment utiliser), ils activent ce que l’on peut appeler des boucles discursives et imaginaires pour confirmer ou renforcer leurs opinions et leurs comportements. D’un autre côté, les collectifs ouverts dans l’espace numérique cherchent à attirer davantage de corps pour développer des réseaux en expansion, ce qui est typique de Tik Tok ou d’Instagram, qui comptent déjà des milliards d’utilisateurs.

Canetti souligne l’effet réconfortant des corps qui se touchent, créant une entité dans laquelle les corps individuels sont incorporés dans un seul corps collectif plus grand. La masse, qui se présume puissante, n’a pas peur du danger.

C’est justement cette impression de puissance collective, par la multiplication de corps virtuels, qui se reproduit dans les réseaux numériques. Il ne s’agit pas seulement de l’anonymat propre à la communication numérique qui encourage la participation dans ce corps unifié de la multitude (y compris les bots ou robots algorithmiques). C’est l’agrégat de « likes », commentaires et rediffusions qui créent cette entité plus large que l’individu.




À lire aussi :
Active Clubs : le corps comme champ de bataille de l’extrême droite


La masse face à la mort

La force de la masse provient de ce que Canetti appelle le moment de survie, illustré par la situation dans laquelle un clan nomade trouve un cadavre sur la route. La première réaction est le cri déchirant du clan. Ils savent qu’un jour ils mourront tous. Mais, bientôt, les pleurs se transforment en rires, qui s’expriment d’abord avec une certaine réserve, puis résonnent bruyamment. Le clan rit aux éclats, car il sait qu’il est survivant, qu’il vit une victoire momentanée sur la mort.

Relire Masse et Puissance de Canetti à l’heure des multitudes numériques nous aide à mieux comprendre les collectifs virtuels dans lesquels nos corps sont exposés et s’exposent à un large spectre d’émotions, de l’horreur à la sentimentalité kitsch. C’est aussi le réconfort que l’on ressent à être, même virtuellement, parmi tant d’autres afin de sortir d’une solitude de plus en plus répandue. Et il y a, finalement, cette illusion de survie renforcée par la multiplication des images de nos propres corps que l’on décide de partager sur les plates-formes numériques en brisant la distinction entre l’espace privé et l’espace public.

La Conversation Canada

Isaac Nahon-Serfaty ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. Images de nos corps, likes et survie : Le réconfort dans la masse virtuelle – https://theconversation.com/images-de-nos-corps-likes-et-survie-le-reconfort-dans-la-masse-virtuelle-268714

Hey Trump: Here’s how Canada punched above its military weight in Afghanistan — from someone with a front-row seat

Source: The Conversation – Canada – By Eugene Lang, Interim Director, School of Policy Studies, Queen’s University, Ontario

“We’ve never needed them. We have never really asked anything of them. You know, they’ll say they sent some troops to Afghanistan, or this or that. And they did — they stayed a little back, a little off the front lines.” So said United States President Donald Trump recently, referring to America’s NATO allies, including Canada.

The comments have provoked outrage. British Prime Minister Keir Starmer called them “frankly appalling,” especially the insinuation that soldiers from other NATO states avoided the front lines in Afghanistan, leaving the most dangerous heavy lifting to American forces.

Anyone moderately familiar with NATO’s involvement in Afghanistan knows Trump’s insult is rubbish — especially when it comes to Canada.

The Canadian Armed Forces were deployed in some of the most dangerous regions and complex situations in Afghanistan for more than a decade, paying a heavy price in casualties — the heaviest since the Korean War in the early 1950s, when Canada also supported the American-led war effort and more than 500 Canadians died doing so.

What is less commented upon is Trump’s claim: “We’ve never needed them. We have never really asked anything of them.” This, too, is rubbish as far as Canada is concerned.

A front-row seat to Rumsfeld’s request

Twenty-three years ago, in fact, the U.S. asked Canada for something substantive and specific in Afghanistan. And Canada delivered substantively.

The ask came from U.S. President George W. Bush’s secretary of defense, the late Donald Rumsfeld, in January 2003. Famous for being sharp and precise with language, Rumsfeld invited Canada’s defence minister at the time, the late John McCallum, to the Pentagon to make a request.

I was in the room that day, and I heard the ask from Rumsfeld’s own lips (I later wrote about this historic meeting in The Unexpected War: Canada in Kandahar in 2007 and again in 2025 in Chretien and the World: Canadian Foreign Policy from 1993-2003.

Rumsfeld asked Canada to lead the International Security Assistance Force (ISAF), a multi-national stabilization mission then confined to Kabul, the war-torn capital city of Afghanistan. Rumsfeld’s request was an extremely significant one for Canada to digest. It meant providing the largest contingent of troops — about 2,200 — as well as a brigade headquarters and command of the operation.

Rumsfeld emphasized how critical the leadership of that mission was from his perspective, and how in his view Canada was better suited to take on the role than any other American ally. Gen. Richard Meyers, chairman of the U.S. Joint Chiefs of Staff at the time, was also present at the meeting and reinforced Rumsfeld’s point that ISAF was key to the Kabul region and Canada was the preferred nation to lead it.

American forces, the defense secretary argued, needed Canada to stabilize Kabul, which was awash in war lords and militia and had no real functioning government at that point.

American forces, meantime, would be otherwise engaged in the invasion of Iraq (which began a few weeks later) and holding the line in southern Afghanistan, where U.S. troops were concentrated.

The Canadian military was needed to hold Kabul together and pave the way for scheduled Afghan elections in 2004, Rumsfeld said. Kabul was an extremely important and vulnerable flank in the American war effort, and Rumsfeld needed Canada to cover that flank.

Canada answered the call

The U.S. needed Canada. The American military needed the Canadian Armed Forces. So Rumsfeld asked Canada for help. Following that meeting, McCallum returned to Ottawa and dutifully presented Rumsfeld’s ask to then Foreign Minister Bill Graham, Prime Minister Jean Chretien, Canada’s military leadership and ultimately the federal cabinet.

It was not an easy ask for Canada to fulfil in terms of military capability, capacity and risk. Canada had never done anything like this before. It was, therefore, not an easy decision to make for the government of Canada and for the Canadian military to deliver.

But Canada answered the call from its closest ally, giving the U.S. exactly what it asked for and what it needed from Canada. And for the next couple of years, more than 2,000 Canadian Armed Forces soldiers were deployed into the dangers and instability of Kabul in what was known as Operation Athena Phase 1 Kabul, where they acquitted themselves exceptionally well — as Rumsfeld predicted they would. Three Canadian soldiers gave their lives during this phase from 2003 to 2005.

Trump needs to be briefed on Canada’s military heroism before he opens his mouth again on this file. And Americans should understand that in the case of Afghanistan, they needed Canada’s help, their government asked Canada for help — and Canada delivered.

The Conversation

Eugene Lang is affiliated with Canadian Association of Defence and Security Industries

ref. Hey Trump: Here’s how Canada punched above its military weight in Afghanistan — from someone with a front-row seat – https://theconversation.com/hey-trump-heres-how-canada-punched-above-its-military-weight-in-afghanistan-from-someone-with-a-front-row-seat-274901

Hey Trump: Here’s how Canada has long punched above its military weight — from someone with a front-row seat

Source: The Conversation – Canada – By Eugene Lang, Interim Director, School of Policy Studies, Queen’s University, Ontario

“We’ve never needed them. We have never really asked anything of them. You know, they’ll say they sent some troops to Afghanistan, or this or that. And they did — they stayed a little back, a little off the front lines.” So said United States President Donald Trump recently, referring to America’s NATO allies, including Canada.

The comments have provoked outrage. British Prime Minister Keir Starmer called them “frankly appalling,” especially the insinuation that soldiers from other NATO states avoided the front lines in Afghanistan, leaving the most dangerous heavy lifting to American forces.

Anyone moderately familiar with NATO’s involvement in Afghanistan knows Trump’s insult is rubbish — especially when it comes to Canada.

The Canadian Armed Forces were deployed in some of the most dangerous regions and complex situations in Afghanistan for more than a decade, paying a heavy price in casualties — the heaviest since the Korean War in the early 1950s, when Canada also supported the American-led war effort and more than 500 Canadians died doing so.

What is less commented upon is Trump’s claim: “We’ve never needed them. We have never really asked anything of them.” This, too, is rubbish as far as Canada is concerned.

A front-row seat to Rumsfeld’s request

Twenty-three years ago, in fact, the U.S. asked Canada for something substantive and specific in Afghanistan. And Canada delivered substantively.

The ask came from U.S. President George W. Bush’s secretary of defense, the late Donald Rumsfeld, in January 2003. Famous for being sharp and precise with language, Rumsfeld invited Canada’s defence minister at the time, the late John McCallum, to the Pentagon to make a request.

I was in the room that day, and I heard the ask from Rumsfeld’s own lips (I later wrote about this historic meeting in The Unexpected War: Canada in Kandahar in 2007 and again in 2025 in Chretien and the World: Canadian Foreign Policy from 1993-2003.

Rumsfeld asked Canada to lead the International Security Assistance Force (ISAF), a multi-national stabilization mission then confined to Kabul, the war-torn capital city of Afghanistan. Rumsfeld’s request was an extremely significant one for Canada to digest. It meant providing the largest contingent of troops — about 2,200 — as well as a brigade headquarters and command of the operation.

Rumsfeld emphasized how critical the leadership of that mission was from his perspective, and how in his view Canada was better suited to take on the role than any other American ally. Gen. Richard Meyers, chairman of the U.S. Joint Chiefs of Staff at the time, was also present at the meeting and reinforced Rumsfeld’s point that ISAF was key to the Kabul region and Canada was the preferred nation to lead it.

American forces, the defense secretary argued, needed Canada to stabilize Kabul, which was awash in war lords and militia and had no real functioning government at that point.

American forces, meantime, would be otherwise engaged in the invasion of Iraq (which began a few weeks later) and holding the line in southern Afghanistan, where U.S. troops were concentrated.

The Canadian military was needed to hold Kabul together and pave the way for scheduled Afghan elections in 2004, Rumsfeld said. Kabul was an extremely important and vulnerable flank in the American war effort, and Rumsfeld needed Canada to cover that flank.

Canada answered the call

The U.S. needed Canada. The American military needed the Canadian Armed Forces. So Rumsfeld asked Canada for help. Following that meeting, McCallum returned to Ottawa and dutifully presented Rumsfeld’s ask to then Foreign Minister Bill Graham, Prime Minister Jean Chretien, Canada’s military leadership and ultimately the federal cabinet.

It was not an easy ask for Canada to fulfil in terms of military capability, capacity and risk. Canada had never done anything like this before. It was, therefore, not an easy decision to make for the government of Canada and for the Canadian military to deliver.

But Canada answered the call from its closest ally, giving the U.S. exactly what it asked for and what it needed from Canada. And for the next couple of years, more than 2,000 Canadian Armed Forces soldiers were deployed into the dangers and instability of Kabul in what was known as Operation Athena Phase 1 Kabul, where they acquitted themselves exceptionally well — as Rumsfeld predicted they would. Three Canadian soldiers gave their lives during this phase from 2003 to 2005.

Trump needs to be briefed on Canada’s military heroism before he opens his mouth again on this file. And Americans should understand that in the case of Afghanistan, they needed Canada’s help, their government asked Canada for help — and Canada delivered.

The Conversation

Eugene Lang is affiliated with Canadian Association of Defence and Security Industries

ref. Hey Trump: Here’s how Canada has long punched above its military weight — from someone with a front-row seat – https://theconversation.com/hey-trump-heres-how-canada-has-long-punched-above-its-military-weight-from-someone-with-a-front-row-seat-274901

The mental edge that separates elite athletes from the rest

Source: The Conversation – Canada – By Mallory Terry, Postdoctoral Fellow, Faculty of Science, McMaster University

Elite sport often looks like a test of speed, strength and technical skill. Yet some of the most decisive moments in high-level competition unfold too quickly to be explained by physical ability alone.

Consider Canadian hockey superstar Connor McDavid’s overtime goal at the 4 Nations Face-Off against the United States last February. The puck was on his stick for only a fraction of a second, the other team’s defenders were closing in and he still somehow found the one opening no one else saw.

As professional hockey players return to the ice at the Milan-Cortina Olympics, Canadians can expect more moments like this. Increasingly, research suggests these moments are better understood not as just physical feats, but also as cognitive ones.

A growing body of research suggests a group of abilities known as perceptual-cognitive skills are key differentiators. This is the mental capacity to turn a blur of sights, sounds and movements into split-second decisions.

These skills allow elite athletes to scan a chaotic scene, pick out the right cues and act before anyone else sees the opportunity. In short, they don’t just move faster, but they also see smarter.

Connor McDavid Wins 4 Nations Face-Off For Canada In Overtime (Sportsnet)

How athletes manage visual chaos

One way researchers study these abilities is through a task known as multiple-object tracking, which involves keeping tabs on a handful of moving dots on a screen while ignoring the rest. Multiple-object tracking is a core method I use in my own research on visual attention and visual-motor co-ordination.

Multiple-object tracking taxes attention, working memory and the ability to suppress distractions. These are the same cognitive processes athletes rely on to read plays and anticipate movement in real time.

Unsurprisingly, elite athletes reliably outperform non-athletes on this task. After all, reading plays, tracking players and anticipating movement all depend on managing visual chaos.

There is, however, an important caveat. Excelling at multiple-object tracking will not suddenly enable someone to anticipate a play like McDavid or burst past a defender like Marie-Philip Poulin, captain of the Canadian women’s hockey team. Mastering one narrow skill doesn’t always transfer to real-world performance. Researchers often describe this limitation as the “curse of specificity.”

This limitation raises a deeper question about where athletes’ mental edge actually comes from. Are people with exceptional perceptual-cognitive abilities drawn to fast-paced sports, or do years of experience sharpen it over time?

Evidence suggests the answer is likely both.

Born with it or trained over time?

Elite athletes, radar operators and even action video game players — all groups that routinely track dynamic, rapidly changing scenes — consistently outperform novices on perceptual-cognitive tasks.

At the same time, they also tend to learn these tasks faster, pointing to the potential role of experience in refining these abilities.

What seems to distinguish elite performers is not necessarily that they take in more information, but that they extract the most relevant information faster. This efficiency may ease their mental load, allowing them to make smarter, faster decisions under pressure.

My research at McMaster University seeks to solve this puzzle by understanding the perceptual-cognitive skills that are key differentiators in sport, and how to best enhance them.

This uncertainty around how to best improve perceptual-cognitive skills is also why we should be cautious about so-called “brain training” programs that promise to boost focus, awareness or reaction time.

The marketing is often compelling, but the evidence for broad, real-world benefits is far less clear. The value of perceptual-cognitive training hasn’t been disproven, but it hasn’t been tested rigorously enough in real athletic settings to provide compelling evidence. To date, though, tasks that include a perceptual element such as multiple-object tracking show the most promise.

Training perceptual-cognitive skills

Researchers and practitioners still lack clear answers about the best ways to train perceptual-cognitive skills, or how to ensure that gains in one context carry over to another. This doesn’t mean cognitive training is futile, but it does mean we need to be precise and evidence-driven about how we approach it.

Research does, however, point to several factors that increase the likelihood of real-world transfer.

Training is more effective when it combines high cognitive and motor demands, requiring rapid decisions under physical pressure, rather than isolated mental drills. Exposure to diverse stimuli matters as well, as it results in a brain that can adapt, not just repeat. Finally, training environments that closely resemble the game itself are more likely to produce skills that persist beyond the training session.

The challenge now is translating these insights from the laboratory into practical training environments. Before investing heavily in new perceptual-cognitive training tools, coaches and athletes need to understand what’s genuinely effective and what’s just a high-tech placebo.

For now, this means treating perceptual-cognitive training as a complement to sport-specific training, not as a substitute. Insights will also come from closer collaborations between researchers, athletes and coaches.

There is however, support for incorporating perceptual-cognitive tasks as an assessment of “game sense” to inform scouting decisions.

The real secret to seeing the game differently, then, is not just bigger muscles or faster reflexes. It’s a sharper mind, and understanding how it works could change how we think about performance, both on and off the ice.

The Conversation

Mallory Terry does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

ref. The mental edge that separates elite athletes from the rest – https://theconversation.com/the-mental-edge-that-separates-elite-athletes-from-the-rest-273758

Addicts à nos écrans : et si tout avait commencé avec la télé en couleurs ?

Source: The Conversation – in French – By Jean-Michel Bettembourg, Enseignant, Métiers du multimédia et de l’Internet, Université de Tours

Le télévision couleurs a transformé le paysage médiatique et notre rapport aux écrans. Pexels, Marshal Yung, CC BY

Octobre 1967, le premier programme en couleurs est diffusé sur la deuxième chaîne de l’ORTF (aujourd’hui, France 2). Pourtant, la démocratisation de la télévision couleur a pris de nombreuses années, pour s’imposer à la fin des années 1980 dans quasiment tous les foyers de France, créant une forme de séduction qui se poursuit peut-être aujourd’hui à travers l’addiction aux écrans.


Le 1er octobre 1967, dans quelques salons français, le monde bascule avec l’avènement de la télévision en couleurs : une révolution médiatique, mais aussi politique, sociale et culturelle.

Cette première diffusion a lieu sur la deuxième chaîne de l’Office de radiodiffusion-télévision française (ORTF). Mais la télévision en couleurs, au début, n’est pas à la portée de tous. Pour la grande majorité des Français, elle reste un rêve inaccessible. Il y a, d’un côté, une ambition nationale immense pour promouvoir cette vitrine de la modernité et, de l’autre, une réalité sociale qui reste encore largement en noir et blanc.

La décision, très politique, vient d’en haut. La couleur n’était pas qu’une question d’esthétique, et le choix même de la technologie, le fameux procédé Sécam, est une affaire d’État. Plus qu’une décision purement technique, le choix d’un standard de télé est en réalité une affaire de souveraineté nationale.

Pour comprendre ce qui se joue, il faut se replacer dans le contexte de l’époque. Dans la période gaullienne, le maître mot, c’est l’indépendance nationale sur tous les fronts : militaire, diplomatique, mais aussi technologique.

Un standard très politique

Pour le général de Gaulle et son gouvernement, imposer un standard français, le Sécam, est un acte politique aussi fort que de développer le nucléaire civil ou plus tard de lancer le programme Concorde. La France fait alors face à deux géants : d’un côté le standard américain, le NTSC, qui existe déjà depuis 1953, et le PAL, développé par l’Allemagne de l’Ouest. Choisir le Sécam, c’est refuser de s’aligner, de devenir dépendant d’une technologie étrangère.

L’État investit. Des millions de francs de l’époque sont investis pour moderniser les infrastructures, pour former des milliers de techniciens et pour faire de la deuxième chaîne une vitrine de cette modernité à la française. Sécam signifie « Séquentiel couleur à mémoire », un système basé sur une sorte de minimémoire tampon avant l’heure, qui garantit une transmission sur de longues distances et des couleurs stables qui ne bavent pas.

Le pari est audacieux, car si la France opte ainsi pour un système plus robuste, cela l’isole en revanche du reste de l’Occident. Le prix à payer pour cette exception culturelle et technologique est double. Tout d’abord, le coût pour le consommateur : les circuits Sécam étaient beaucoup plus complexes et donc un poste TV français coûtait entre 20 et 30 % plus cher qu’un poste PAL, sans compter les problèmes d’incompatibilité à l’international. L’exportation des programmes français est acrobatique : il faut tout transcoder, ce qui est coûteux et entraîne une perte de qualité. Et ce coût, justement, nous amène directement à la réalité sociale de ce fameux 1er octobre 1967.

Fracture sociale

D’un côté, on avait cette vitrine nationale incroyable et, de l’autre, la réalité des salons français. Le moment clé, c’est l’allocution du ministre de l’information Georges Gorse qui, ce 1er octobre 1967, lance un sobre mais historique « Et voici la couleur… ». Mais c’est une image d’Épinal qui cache la fracture.

Le prix des télévisions nouvelle génération est exorbitant. Un poste couleur coûte au minimum 5 000 francs (soit l’équivalent de 7 544 euros, de nos jours). Pour donner un ordre de grandeur, le smic de l’époque est d’environ 400 francs par mois … 5 000 francs, c’est donc plus d’un an de smic, le prix d’une voiture !

La démocratisation a été extrêmement lente. En 1968, seuls 2 % des foyers environ étaient équipés, et pour atteindre environ 90 %, il faudra attendre jusqu’en… 1990 ! La télévision couleur est donc immédiatement devenue un marqueur social. Une grande partie de la population voyait cette promesse de modernité à l’écran, mais ne pouvait pas y toucher. La première chaîne, TF1, est restée en noir et blanc jusqu’en 1976.

Cette « double diffusion » a accentué la fracture sociale, mais en même temps, elle a aussi permis une transition en douceur. Le noir et blanc n’a pas disparu du jour au lendemain. Et une fois ce premier choc encaissé, la révolution s’est mise en marche.

La couleur a amplifié de manière exponentielle le rôle de la télé comme créatrice d’une culture populaire commune. Les émissions de variétés, les feuilletons, les jeux et surtout le sport, tout devenait infiniment plus spectaculaire. L’attrait visuel était décuplé. Lentement, la télévision est devenue le pivot qui structure les soirées familiales et synchronise les rythmes de vie. Et en coulisses, c’était une vraie révolution industrielle. L’audiovisuel s’est professionnalisé à une vitesse folle. Les budgets de production ont explosé.

Cela a créé des besoins énormes et fait émerger de tout nouveaux métiers, les étalonneurs, par exemple, ces experts qui ajustent la colorimétrie en postproduction. Et bien sûr, il a fallu former des légions de techniciens spécialisés sur la maintenance des caméras et des télés Sécam pour répondre à la demande. Dans ce contexte, l’ORTF et ses partenaires industriels, comme Thomson, ont développé des programmes ambitieux de formation des techniciens, impliquant écoles internes et stages croisés.

Le succès industriel est retentissant. L’impact économique a été à la hauteur de l’investissement politique initial. L’État misait sur la recherche et le développement. Thomson est devenu un leader européen de la production de tubes cathodiques couleur, générant des dizaines de milliers d’emplois directs dans ses usines. C’est une filière entière de la fabrication des composants à la maintenance chez le particulier qui est née.

Et puis il y a eu le succès à l’exportation du système. Malgré son incompatibilité, le Sécam a été vendu à une vingtaine de pays, notamment l’URSS.

La place des écrans dans nos vies

Mais en filigrane, on sentait déjà poindre des questions qui nous sont très familières aujourd’hui, sur la place des écrans dans nos vies. C’est peut-être l’héritage le plus durable de la télévision en couleurs. La puissance de séduction des images colorées a immédiatement renforcé les craintes sur la passivité du spectateur. On commence à parler de « consommation d’images », d’une « perte de distance critique ».

Le débat sur le temps d’écran n’est pas né avec les smartphones, mais bien à ce moment-là, quand l’image est devenue si attractive, si immersive, qu’elle pouvait littéralement « capturer » le spectateur. La télé couleur, avec ses rendez-vous, installait une logique de captation du temps.

Et avec l’arrivée des premières mesures d’audience précises à la fin des années 1960, certains observateurs parlaient déjà d’une forme d’addiction aux écrans. La couleur a ancré durablement la télévision au cœur des industries culturelles, avec le meilleur des créations audacieuses et le moins bon, des divertissements certes très populaires mais de plus en plus standardisés.

L’arrivée de la couleur, c’était la promesse de voir enfin le monde « en vrai » depuis son salon. Cette quête de réalisme spectaculaire, de plus vrai que nature, ne s’est jamais démentie depuis, de la HD à la 4K, 6K et au-delà. On peut alors se demander si cette promesse initiale vendue sur un écran de luxe ne contenait pas déjà en germe notre rapport actuel à nos écrans personnels ultraportables, où la frontière entre le réel et sa représentation est devenue une question centrale.

The Conversation

Jean-Michel Bettembourg ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. Addicts à nos écrans : et si tout avait commencé avec la télé en couleurs ? – https://theconversation.com/addicts-a-nos-ecrans-et-si-tout-avait-commence-avec-la-tele-en-couleurs-274170

Lessons from the sea: Nature shows us how to get ‘forever chemicals’ out of batteries

Source: The Conversation – Canada – By Alicia M. Battaglia, Postdoctoral Researcher, Department of Mechanical & Industrial Engineering, University of Toronto

As the world races to electrify everything from cars to cities, the demand for high-performance, long-lasting batteries is soaring. But the uncomfortable truth is this: many of the batteries powering our “green” technologies aren’t as green as we might think.

Most commercial batteries rely on fluorinated polymer binders to hold them together, such as polyvinylidene fluoride. These materials perform well — they’re chemically stable, resistant to heat and very durable. But they come with a hidden environmental price.

Fluorinated polymers are derived from fluorine-containing chemicals that don’t easily degrade, releasing persistent pollutants called PFAS (per- and polyfluoroalkyl substances) during their production and disposal. Once they enter the environment, PFAS can remain in water, soil and even human tissue for hundreds of years, earning them the nickname “forever chemicals.”

We’ve justified their use because they increase the lifespan and performance of batteries. But if the clean energy transition relies on materials that pollute, degrade ecosystems and persist in the environment for years, is it really sustainable?

As a graduate student, I spent years thinking about how to make batteries cleaner — not just in how they operate, but in how they’re made. That search led me somewhere unexpected: the ocean.




Read more:
Living with PFAS ‘forever chemicals’ can be distressing. Not knowing if they’re making you sick is just the start


Why binders are important

an electric car plugged in to charge
Most commercial batteries rely on fluorinated polymer binders to hold them together. These materials perform well but come with an environmental cost.
(Unsplash/CHUTTERSNAP)

Every rechargeable battery has three essential components: two electrodes separated by a liquid electrolyte that allows charged atoms (ions) to flow between them. When you charge a battery, the ions move from one electrode to the other, storing energy.

When you use the battery, the charged atoms flow back to their original side, releasing that stored energy to power your phone, car or the grid.

Each electrode is a mixture of three parts: an active material that stores and releases energy, a conductive additive that helps electrons move and a binder that holds everything together.

The binder acts like glue, keeping particles in place and preventing them from dissolving during use. Without it, a battery would be unable to hold a charge after only a few uses.

Lessons from the sea

Many marine organisms have evolved in remarkable ways to attach themselves to wet, slippery surfaces. Mussels, barnacles, sandcastle worms and octopuses produce natural adhesives to stick to rocks, ship hulls and coral in turbulent water — conditions that would defeat most synthetic glues.

For mussels, the secret lies in molecules called catechols. These molecules contain a unique amino acid in their sticky proteins that helps them form strong bonds with surfaces and hardens almost instantly when exposed to oxygen. This chemistry has already inspired synthetic adhesives used to seal wounds, repair tendons and create coatings that stick to metal or glass underwater.

Building on this idea, I began exploring a related molecule called gallol. Like catechol in mussels, gallol is used by marine plants and algae to cling to wet surfaces. Its chemical structure is very similar to catechol, but it contains an extra functional group that makes it even more adhesive and versatile. It can form multiple types of strong, durable and reversible bonds — properties that make it an excellent battery binder.

a group of mussels stuck to a rock
Mussels use molecules called catechols to stick to surfaces.
(Unsplash/Manu Mateo)

A greener solution

Working with Prof. Dwight S. Seferos at the University of Toronto, we developed a polymer binder based on gallol chemistry and paired it with zinc, a safer and more abundant metal than lithium. Unlike lithium, zinc is non-flammable and easier to source sustainably, making it ideal for large-scale applications.

The results were remarkable. Our gallol-based zinc batteries maintained 52 per cent higher energy efficiency after 8,000 charge-discharge cycles compared to conventional batteries that use fluorinated binders. In practical terms, that means longer-lasting devices, fewer replacements and a smaller environmental footprint.

Our findings are proof that performance and sustainability can go hand-in-hand. Many in industry might still view “green” and “effective” as competing priorities, with sustainability an afterthought. That logic is backwards.

We can’t build a truly clean energy future using polluting materials. For too long, the battery industry has focused on performance at any cost, even if that cost includes toxic waste, hard-to-recycle materials and unsustainable and unethical mining practices. The next generation of technologies must be sustainable by design, built from sources are renewable, biodegradable and circular.

Nature has been running efficient, self-renewing systems for billions of years. Mussels, shellfish and seaweeds build materials that are strong, flexible and biodegradable. No waste and no forever chemicals. It’s time we started paying attention.

The ocean holds more than beauty and biodiversity; it may also hold the blueprint for the future of energy storage. But realizing that future requires a cultural shift in science, one that rewards innovation that heals, not just innovation that performs.

We don’t need to sacrifice progress to protect the planet. We just need to design with the planet in mind.

The Conversation

This research was supported by the National Sciences and Engineering Research Council of Canada, the Canadian Foundation for Innovation, and the Ontario Research Fund. Alicia M. Battaglia received funding from the Ontario Graduate Scholarship Program.

ref. Lessons from the sea: Nature shows us how to get ‘forever chemicals’ out of batteries – https://theconversation.com/lessons-from-the-sea-nature-shows-us-how-to-get-forever-chemicals-out-of-batteries-273098

Why Canada must step up to protect children in a period of global turmoil

Source: The Conversation – Canada – By Catherine Baillie Abidi, Associate Professor, Child & Youth Study, Mount Saint Vincent University

Over half a billion children are now living in conflict zones, according to a 2025 Save the Children report, and the world is turning its back on them.

At a time of unprecedented global insecurity, funding and resources to care for, protect and engage with children affected by armed violence continue to decline.

The Donald Trump administration’s recent announcement of unprecedented American cuts to funding for international organizations — including reductions to the United Nations Offices of the Special Representatives of the Secretary-General for Children in Armed Conflict and on Violence Against Children — further undermines an already fragile system.

Cuts like these can have a devastating effect on some of the world’s most vulnerable populations, undermining important work to identify and prevent violations against children, and to assist children in rebuilding their lives in the aftermath of violence. Canada cannot sit on the sidelines.

Preventing violence against children

Violence against children is a global crisis. Without a seismic shift in how states take action to prevent such violence, the costs will continue to impact people around the world.

As a global community, we have a collective responsibility to build communities where children are not only safe and thriving, but where their capacity and agency as future peace-builders, leaders and decision-makers in their families, schools and communities are built upon and nurtured in wartime and post-conflict societies. These are core responsibilities that the global community is failing at miserably.

As many as 520 million war-affected children deserve better.

Canada has a long history of serving as a champion of children’s rights in armed conflict. Canadians have led global initiatives, including leading the first International Conference on War-affected Children, championing the Ottawa Treaty to ban landmines and developing the Vancouver Principles on Peacekeeping and Preventing the Recruitment and Use of Child Soldiers .

Canada is also the founder and chair of the Group of Friends of Children and Armed Conflict, an informal but vital UN network focused on child protection.

Now more than ever — amid American economic and political disengagement from core child protection priorities — there is both an opportunity and an imperative for Canada to demonstrate active leadership in the promotion of children’s rights and enhanced safety for children impacted by the devastation of armed conflict.

Complacency threatens to perpetuate generational impacts of violence.

Global leadership required

The Canadian government must once again stand up and provide global leadership on children and armed conflict by bolstering strategic alliances and funding efforts to protect and engage children impacted by armed conflict.

As a community of Canadian scholars dedicated to studying children, organized violence and armed conflict, we are deeply concerned about the growing vulnerability of children worldwide.

We see an opportunity for Canada to reclaim its role as a global leader in advancing and protecting children’s rights, especially in a time of political upheaval and heightened global insecurity. Canada can reassert itself and live up to its global reputation as a force for good in the world. It can stand on the global stage and draw attention to a crisis with generational impacts.

Children need protection from the effects of war, but they also need to be seen as active agents of peace who understand their needs and can help secure better futures.

Investments of attention and funding today can make significant differences in the emotional and social development of children who are navigating post-conflict life.




Read more:
The lasting scars of war: How conflict shapes children’s lives long after the fighting ends


Canada must take the lead

These investments are critical to the social structures of peaceful communities. Canadian leadership is well-positioned to take on this role, not only because of the country’s history and reputation, but because Canadian scholars are at the forefront, are organized around this issue and can be leveraged for maximum impact.

Prime Minister Mark Carney’s recent celebrated speech at the World Economic Forum’s annual conference at Davos signalled a possible and important shift in alliances, priorities and global moral leadership for Canada.

Canadian foreign policy can build upon this. Making the vulnerability of children affected by armed conflict and the capacity of children to be agents of peace a key foreign policy issue would positively affect the lives of millions of children globally. It would also signal to the world that Canada is ready to take on the significant global human rights challenges it once did.


The following scholars, members of The Canadian Community of Practice on Children and Organized Violence & Armed Conflict, contributed to this article: Maham Afzaal, PhD Student, Queens University; Dr. Marshall Beier, McMaster University; Sophie Greco, PhD Candidate, Wilfrid Laurier University; Ethan Kelloway, Honours Student, Mount Saint Vincent University; Dr. Marion Laurence, Dalhousie University; Dr. Kate Swanson, Dalhousie University; Orinari Wokoma, MA student, Mount Saint Vincent University.

The Conversation

Catherine Baillie Abidi receives funding from Social Science and Humanities Research Council of Canada.

Izabela Steflja receives funding from the Social Sciences and Humanities Research Council of Canada.

Kirsten J. Fisher receives funding from the Social Sciences and Humanities Research Council of Canada.

Myriam Denov receives funding from the Social Science and Humanities Research Council of Canada, and the Canada Research Chair Program.

ref. Why Canada must step up to protect children in a period of global turmoil – https://theconversation.com/why-canada-must-step-up-to-protect-children-in-a-period-of-global-turmoil-274398

L’UFC, la mécanique bien huilée de la violence et de sa spectacularisation

Source: The Conversation – in French – By Blaise Dore-Caillouette, Doctorant en communication, Université de Montréal

L’Ultimate Fighting Championship a transformé un sport de combat brutal en empire de 10 milliards de dollars. Son secret ? Faire de la violence le cœur même du spectacle. Bonus financiers pour les K.O. les plus impressionnants, dramatisation des rivalités, valorisation des combattants offensifs. Voici comment l’UFC a érigé la spectacularisation de la violence en modèle d’affaires.

Moi-même pratiquant de MMA, je poursuis actuellement des recherches doctorales en communication à l’Université de Montréal. Mes recherches portent sur les études médiatiques, les Cultural Studies et la communication politique.

Une organisation globale

Créé en 1993, l’UFC a été conçu à l’origine pour déterminer quel style d’art martial était le plus efficace dans un combat limité par le moins de règles possible. Les arts martiaux mixtes sont donc devenus un sport de combat mêlant frappes, projections et techniques de soumission qui combine plusieurs disciplines comme la boxe, le judo, le jiu-jitsu brésilien et la lutte. L’UFC est aujourd’hui une organisation globale, capitalisant une dizaine de milliards de dollars et rassemblant les meilleurs combattants de toutes disciplines.

Mais ce qui distingue véritablement l’UFC, ce n’est pas seulement la qualité de ses athlètes, mais sa capacité à transformer un affrontement technique, stratégique et violent en spectacle, où chaque geste, chaque coup et chaque réaction est mis en scène pour maximiser l’impact émotionnel sur le public.

La violence dans les disciplines sportives ainsi que sa spectacularisation n’ont évidemment rien de nouveau. Que ce soit au football américain, au hockey, ou même à la boxe, les affrontements, les rivalités et les moments de tension et de violence sont médiatisés et amplifiés pour captiver le public. Il est cependant intéressant de constater que, à la différence des autres sports, le MMA est de nature plus violente, et que l’UFC capitalise et amplifie cette violence pour la spectaculariser.

MMA, une discipline sportive intrinsèquement plus violente

À la différence des autres sports de combat, les règles encadrant les contacts physiques en MMA sont beaucoup moins restrictives, ce qui rend le combat plus brutal et imprévisible. À l’inverse, il y a des sports de combat comptant de nombreuses restrictions, comme la boxe qui interdit les frappes au sol, les soumissions ou les projections.




À lire aussi :
Active Clubs : le corps comme champ de bataille de l’extrême droite


Depuis l’adoption des Unified Rules of MMA (2009), un ensemble de règles interdit désormais certaines techniques trop dangereuses comme les coups de tête ou les coups de pied au visage d’un adversaire au sol. Il n’en demeure pas moins que les combattants risquent des blessures graves à chaque combat. En effet, le MMA autorise un éventail de techniques qui peut être dangereux pour l’intégrité physique des combattants.



Les frappes avec les coudes et les genoux, par exemple, sont parmi celles qui infligent le plus de dégâts. Elles provoquent fréquemment des coupures, des saignements abondants et des K.O. rapides. Les combats peuvent également se poursuivre au sol, ce qui permet non seulement de frapper un adversaire au tapis, mais aussi d’appliquer des étranglements, ou des clés articulaires qui peuvent mettre fin au combat en quelques secondes.


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Amplification de la spectacularisation de la violence

La violence est souvent spectacularisée dans les sports, car elle capte l’attention du public et renforce l’intensité dramatique des compétitions. Par exemple, au hockey, les bagarres sont devenues de véritables moments attendus par les spectateurs. On peut d’ailleurs les revivre au ralenti, en gros plans ou au sein de montages vidéo. En boxe, les K.O. spectaculaires sont mis en avant dans les moments clés.

Toutefois, l’UFC pousse encore plus loin cette logique en transformant la violence elle-même en moteur du spectacle. En effet, plusieurs éléments distinguent la spectacularisation de la violence dans l’UFC des autres arts martiaux ou disciplines sportives.




À lire aussi :
« Rage bait » : le mot de l’année met en évidence une mutation des médias sociaux vers la fabrication de la colère


Par exemple, l’UFC récompense directement à la hauteur de 50 000$ US les affrontements spectaculaires avec les bonus « Performance of the Night », ce qui incite les combattants à adopter un style offensif et à chercher les K.O. ou les soumissions les plus impressionnants. Cette politique valorise non seulement la violence des combats, mais crée aussi une dynamique où les athlètes savent qu’un combat particulièrement violent peut accroître leur notoriété et leurs revenus.

K.O particulièrement violent, où l’on voit que les athlètes sont encouragés à frapper leur adversaire – même inconscient – tant que l’arbitre n’a pas arrêté le combat.

L’UFC met à cet égard systématiquement de l’avant les combattants capables d’offrir des moments forts, et privilégie les profils connus pour leurs violences.

Parallèlement, l’UFC contribue à renforcer cette culture en valorisant publiquement les combats les plus violents et en critiquant ceux jugés trop prudents ou stratégiques. Cette culture instaure une pression implicite sur les combattants pour offrir un spectacle violent à chaque affrontement. L’ensemble de ces mécanismes, sans compter les nombreux autres que l’on retrouve dans tous sports de contacts (gros plans, ralentis et montages vidéo de tout genre sur les moments violents, pour en nommer quelques-uns), fait de la violence un élément central et soigneusement orchestré du spectacle UFC.

La dramatisation des rivalités

Les rivalités personnelles entre athlètes participent également à cette dramatisation de la violence dont je parle. Elles sont fréquemment mises de l’avant lors des conférences et tout au long de la promotion de l’affrontement.

Les combattants sont encouragés à accentuer leurs différends par des déclarations provocantes, des échanges verbaux intenses ponctués d’insultes. Il n’est pas rare de voir les combattants s’échanger des coups de poing en pleine conférence de presse.

Dans cette vidéo, les deux athlètes intensifient la tension de leur combat à venir avec des déclarations provocantes.

Cette spectacularisation de la violence transforme chaque affrontement en événement dramatique, où l’enjeu émotionnel dépasse la simple compétition sportive et contribue à capter l’attention du public.

Si l’UFC amplifie la violence de manière inédite, comme nous l’avons vu, d’autres sports, de la boxe au football américain, mobilisaient déjà des procédés semblables. Cette tendance démontre que la spectacularisation de la violence façonne les pratiques sportives modernes et la manière dont elles sont consommées par le public.

La Conversation Canada

Blaise Dore-Caillouette ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. L’UFC, la mécanique bien huilée de la violence et de sa spectacularisation – https://theconversation.com/lufc-la-mecanique-bien-huilee-de-la-violence-et-de-sa-spectacularisation-271153

AI is coming to Olympic judging: what makes it a game changer?

Source: The Conversation – France – By Willem Standaert, Associate Professor, Université de Liège

As the International Olympic Committee (IOC) embraces AI-assisted judging, this technology promises greater consistency and improved transparency. Yet research suggests that trust, legitimacy, and cultural values may matter just as much as technical accuracy.

The Olympic AI agenda

In 2024, the IOC unveiled its Olympic AI Agenda, positioning artificial intelligence as a central pillar of future Olympic Games. This vision was reinforced at the very first Olympic AI Forum, held in November 2025, where athletes, federations, technology partners, and policymakers discussed how AI could support judging, athlete preparation, and the fan experience.

At the 2026 Winter Olympics in Milano-Cortina, the IOC is considering using AI to support judging in figure skating (men’s and women’s singles and pairs), helping judges precisely identify the number of rotations completed during a jump. Its use will also extend to disciplines such as big air, halfpipe, and ski jumping (ski and snowboard events where athletes link jumps and aerial tricks), where automated systems could measure jump height and take-off angles. As these systems move from experimentation to operational use, it becomes essential to examine what could go right… or wrong.

Judged sports and human error

In Olympic sports such as gymnastics and figure skating, which rely on panels of human judges, AI is increasingly presented by international federations and sports governing bodies as a solution to problems of bias, inconsistency, and lack of transparency. Judging officials must assess complex movements performed in a fraction of a second, often from limited viewing angles, for several hours in a row. Post-competition reviews show that unintentional errors and discrepancies between judges are not exceptions.

This became tangible again in 2024, when a judging error involving US gymnast Jordan Chiles at the Paris Olympics sparked major controversy. In the floor final, Chiles initially received a score that placed her fourth. Her coach then filed an inquiry, arguing that a technical element had not been properly credited in the difficulty score. After review, her score was increased by 0.1 points, temporarily placing her in the bronze medal position. However, the Romanian delegation contested the decision, arguing that the US inquiry had been submitted too late – exceeding the one-minute window by four seconds. The episode highlighted the complexity of the rules, how difficult it can be for the public to follow the logic of judging decisions, and the fragility of trust in panels of human judges.

Moreover, fraud has also been observed: many still remember the figure skating judging scandal at the 2002 Salt Lake City Winter Olympics. After the pairs event, allegations emerged that a judge had favoured one duo in exchange for promised support in another competition – revealing vote-trading practices within the judging panel. It is precisely in response to such incidents that AI systems have been developed, notably by Fujitsu in collaboration with the International Gymnastics Federation.

What AI can (and cannot) fix in judging

Our research on AI-assisted judging in artistic gymnastics shows that the issue is not simply whether algorithms are more accurate than humans. Judging errors often stem from the limits of human perception, as well as the speed and complexity of elite performances – making AI appealing. However, our study involving judges, gymnasts, coaches, federations, technology providers, and fans highlights a series of tensions.

AI can be too exact, evaluating routines with a level of precision that exceeds what human bodies can realistically execute. For example, where a human judge visually assesses whether a position is properly held, an AI system can detect that a leg or arm angle deviates by just a few degrees from the ideal position, penalising an athlete for an imperfection invisible to the naked eye.

While AI is often presented as objective, new biases can emerge through the design and implementation of these systems. For instance, an algorithm trained mainly on male performances or dominant styles may unintentionally penalise certain body types.

In addition, AI struggles to account for artistic expression and emotions – elements considered central in sports such as gymnastics and figure skating. Finally, while AI promises greater consistency, maintaining it requires ongoing human oversight to adapt rules and systems as disciplines evolve.

Action sports follow a different logic

Our research shows that these concerns are even more pronounced in action sports such as snowboarding and freestyle skiing. Many of these disciplines were added to the Olympic programme to modernise the Games and attract a younger audience. Yet researchers warn that Olympic inclusion can accelerate commercialisation and standardisation, at the expense of creativity and the identity of these sports.

A defining moment dates back to 2006, when US snowboarder Lindsey Jacobellis lost Olympic gold after performing an acrobatic move – grabbing her board mid-air during a jump – while leading the snowboard cross final. The gesture, celebrated within her sport’s culture, eventually cost her the gold medal at the Olympics. The episode illustrates the tension between the expressive ethos of action sports and institutionalised evaluation.

AI judging trials at the X Games

AI-assisted judging adds new layers to this tension. Earlier research on halfpipe snowboarding had already shown how judging criteria can subtly reshape performance styles over time. Unlike other judged sports, action sports place particular value on style, flow, and risk-taking – elements that are especially difficult to formalise algorithmically.

Yet AI was already tested at the 2025 X Games, notably during the snowboard SuperPipe competitions – a larger version of the halfpipe, with higher walls that enable bigger and more technical jumps. Video cameras tracked each athlete’s movements, while AI analysed the footage to generate an independent performance score. This system was tested alongside human judging, with judges continuing to award official results and medals. However, the trial did not affect official outcomes, and no public comparison has been released regarding how closely AI scores aligned with those of human judges.

Nonetheless, reactions were sharply divided: some welcomed greater consistency and transparency, while others warned that AI systems would not know what to do when an athlete introduces a new trick – something often highly valued by human judges and the crowd.

Beyond judging: training, performance and the fan experience

The influence of AI extends far beyond judging itself. In training, motion tracking and performance analytics increasingly shape technique development and injury prevention, influencing how athletes prepare for competition. At the same time, AI is transforming the fan experience through enhanced replays, biomechanical overlays, and real-time explanations of performances. These tools promise greater transparency, but they also frame how performances are understood – adding more “storytelling” “ around what can be measured, visualised, and compared.

At what cost?

The Olympic AI Agenda’s ambition is to make sport fairer, more transparent, and more engaging. Yet as AI becomes integrated into judging, training, and the fan experience, it also plays a quiet but powerful role in defining what counts as excellence. If elite judges are gradually replaced or sidelined, the effects could cascade downward – reshaping how lower-tier judges are trained, how athletes develop, and how sports evolve over time. The challenge facing Olympic sports is therefore not only technological; it is institutional and cultural: how can we prevent AI from hollowing out the values that give each sport its meaning?


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The Conversation

Willem Standaert ne travaille pas, ne conseille pas, ne possède pas de parts, ne reçoit pas de fonds d’une organisation qui pourrait tirer profit de cet article, et n’a déclaré aucune autre affiliation que son organisme de recherche.

ref. AI is coming to Olympic judging: what makes it a game changer? – https://theconversation.com/ai-is-coming-to-olympic-judging-what-makes-it-a-game-changer-274313