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Origins and consequences of cognitive fatigue | title | Origins and consequences of cognitive fatigue |
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| start_date | 2026/02/04 |
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| schedule | 14h-15h |
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| online | no |
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| location_info | Salle du Conseil, B31 & online |
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| summary | Computers can play chess continuously for as long as they are plugged. Why is the human brain susceptible to fatigue after just a few hours? Although it has been studied for more than a century, there is still no mature theory of cognitive fatigue. In this seminar, I will provide some evidence that may cast light on the origins and consequences of cognitive fatigue, understood as an objective post-effect of cognitive control exertion on brain and behavioral activities. The origin would be the accumulation of potentially toxic by-products that increase the cost of recruiting the cognitive control brain system. The consequence would not necessarily be fatigue sensation or performance decline, which can be ignored or compensated, but a shift in cost-benefit tradeoffs that drive decision-making. Empirical evidence shows that when fatigued, people avoid taking actions that involve cognitive control - they go for immediate gratifications that can be obtained without investing time or effort. This decision bias, a reliable fatigue marker observed in healthy participants after a period of hard work, is exacerbated in pathological conditions plagued with cognitive fatigue, such as burnout, depression and brain cancer. |
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| responsibles | Grégoire |
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Workflow history| from state (1) | to state | comment | date |
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| submitted | published | | 2025/09/30 13:29 UTC |
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