Title :

Volatility of subliminal haptic feedback alters the feeling of control in schizophrenia

Author(s) :

Foerster, François R. [Auteur]
Université de Strasbourg [UNISTRA]
Physiopathologie clinique et expérimentale de la schizophrénie
Weibel, Sébastien [Auteur]
Université de Strasbourg [UNISTRA]
Physiopathologie clinique et expérimentale de la schizophrénie
Poncelet, Patrick [Auteur]
Université de Strasbourg [UNISTRA]
Physiopathologie clinique et expérimentale de la schizophrénie
Dufour, André [Auteur]
Université de Strasbourg [UNISTRA]
Delevoye, Yvonne [Auteur]
Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193
Capobianco, Antonio [Auteur]
Université de Strasbourg [UNISTRA]
Ott, Laurent [Auteur]
Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193
Giersch, Anne [Auteur]
Université de Strasbourg [UNISTRA]
Physiopathologie clinique et expérimentale de la schizophrénie

Journal title :

Journal of abnormal and social psychology

Abbreviated title :

Journal of Abnormal Psychology

Volume number :

130

Pages :

775-784

Publisher :

American Psychological Association (APA)

Publication date :

2021-10

ISSN :

0096-851X

HAL domain(s) :

Sciences cognitives

English abstract : [en]

It has been proposed that agency disorders found in schizophrenia rely on aberrant processing of prediction error. Overreactivity to nonpertinent prediction errors may lead to the attribution of one’s own actions to an ...
Show more >It has been proposed that agency disorders found in schizophrenia rely on aberrant processing of prediction error. Overreactivity to nonpertinent prediction errors may lead to the attribution of one’s own actions to an external source. When applied to perception, this could explain hallucinations. However, experiments in motor control or perception have mainly suggested deficient prediction errors. Using a novel approach based on the manipulation of temporal delays, 23 patients with schizophrenia, 18 patients with bipolar disorder, and 22 healthy participants performed a pointing task with a haptic device that provided haptic feedback without or with delays, which were processed consciously (65 ms) or unconsciously (15 ms). The processing of prediction errors was measured via the adaptation of the hand trajectory, that is, the deceleration in anticipation of the surface, and its modulation as a function of recent history (stable or unstable sensory feedback). Agency was evaluated by measuring the participants’ feeling of controlling the device. Only patients with schizophrenia reported a decrease in the feeling of control following subliminally delayed haptic feedback and adapted deceleration durations following subliminally delayed haptic feedback. This effect was correlated with positive symptoms. The overreactivity to subliminal delays was present only when delays occurred repeatedly in an unpredictable way, that is, with a volatile distribution. The results suggest that small temporal uncertainties that should be held as negligible, trigger an aberrant overreactivity which could account for hallucinations and alterations of the patients’ conscious feeling of control.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

European Project :

Exploring and Modifying the Sense of Time in Virtual Environments

ANR Project :

Le sentiment de contrôler sa propre action: une approche comportementale chez le volontaire sain et dans la pathologie mentale.
Plateforme Recherche et Innovation dans les Environnements Visuels Numériques et Interactifs

Administrative institution(s) :

Université de Lille
CNRS
CHU Lille

Collections :

• Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193

Research team(s) :

Équipe Action, Vision et Apprentissage (AVA)

Submission date :

2022-01-05T10:48:16Z
2022-01-05T11:32:57Z