IOANNUCCI, Stefano; CHIROKOFF, Valentine; DILHARREGUY, Bixente; OZENNE, Valery; CHANRAUD, Sandra; ZENON, Alexandre

doi:10.1038/s42003-023-04527-5

Institut de Neurosciences cognitives et intégratives d'Aquitaine [INCIA]

CHIROKOFF, Valentine
Institut de Neurosciences cognitives et intégratives d'Aquitaine [INCIA]

DILHARREGUY, Bixente
Institut de Neurosciences cognitives et intégratives d'Aquitaine [INCIA]

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Article de revue

Ce document a été publié dans

Communications Biology. 2023-02-03, vol. 6, n° 1, p. 142

Résumé en anglais

Cognitive fatigue is defined by a reduced capacity to perform mental tasks. Despite its pervasiveness, the underlying neural mechanisms remain elusive. Specifically, it is unclear whether prolonged effort affects performance through alterations in over-worked task-relevant neuronal assemblies. Our paradigm based on repeated passive visual stimulation discerns fatigue effects from the influence of motivation, skill and boredom. We induced performance loss and observed parallel alterations in the neural blueprint of the task, by mirroring behavioral performance with multivariate neuroimaging techniques (MVPA) that afford a subject-specific approach. Crucially, functional areas that responded the most to repeated stimulation were also the most affected. Finally, univariate analysis revealed clusters displaying significant disruption within the extrastriate visual cortex. In sum, here we show that repeated stimulation impacts the implicated brain areas' activity and causes tangible behavioral repercussions, providing evidence that cognitive fatigue can result from local, functional, disruptions in the neural signal induced by protracted recruitment.< Réduire

Mots clés en anglais

Motivation

Visual Cortex

Cognition

URI

https://oskar-bordeaux.fr/handle/20.500.12278/184824

DOI

http://dx.doi.org/10.1038/s42003-023-04527-5

Project ANR

Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Une nouvelle théorie du coût de la cognition basée sur la théorie de l'information: validation expérimentale - ANR-18-CE37-0009

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Neural fatigue by passive induction: repeated stimulus exposure results in cognitive fatigue and altered representations in task-relevant networks

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Licence d’utilisation du document

Neural fatigue by passive induction: repeated stimulus exposure results in cognitive fatigue and altered representations in task-relevant networks

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Project ANR

Unités de recherche