Title: Brain response drift under load
Abstract
The topic of the seminar is « Real-Time Brain Dynamics of Fatigue in Exercise and VO₂max Contexts
It is important to note that physical fatigue has a direct impact on both cognitive performance and brain function. In this presentation, I will share our latest research findings on how ongoing physical exertion, particularly under VO2max-based protocols, leads to significant changes in neurophysiological activity and attentional control.
We are examining how exercise-induced fatigue alters frontal and parietal brain oscillations, increases variability in reaction time, and reduces cognitive precision. To do this, we are using high-resolution EEG and continuous behavioural tracking during and after graded exercise. These transitions are captured as neurodynamic trajectories — patterns of brain activity that reveal how the brain adapts or deteriorates under escalating load.
We demonstrated that:
– The presence of fatigue can be identified before there are noticeable performance issues, using spectral shifts and micro-patterns in EEG.
– These neural states are predictable, individualised, and structured in time — suggesting the potential to model them computationally. Therefore, we are compelled to consider whether it is possible to learn latent representations of fatigue using machine learning, or even generate synthetic traces of fatigue induced behaviour or expression using generative models.
While the core of this research lies in cognitive neuroscience and exercise physiology, the data structure and interpretability challenges it raises naturally connect to computational modelling, generative frameworks, and adaptive AI systems. The objective of this talk is to initiate a dialogue surrounding the intersection of biosignals and machine learning. Specifically, we will explore the potential of modelling brain state trajectories under exercise stress to inform the development of novel, human-aware computational systems.
NOTA
Les séminaires IRA2 sont organisés tous les premiers lundi de chaque mois, à l’initiative de la direction de l’équipe IRA2.
- Date: 02/06/2025, 13h
- Lieu: IBISC, site Pelvoux, salle Ax101
- Lien Zoom: https://univ-evry-fr.zoom.us/j/95109429789?pwd=TEFjUERINWhpdnFhNDRvYmtkbm8yQT09
- Organisation: Hédi TABIA (PR Univ. Évry, IBISC équipe IRA2)
