Les séminaires du lundi accueillent le 11 Mars 11h, Salle des Voûtes, Lucie CHARLES - Centre for Brain and Behaviour, Queen Mary University of London - (invitée par Karen DAVRANCHE équipe SyDyD) 

Titre : Introspecting influence in choice: accuracy of metacognitive reports in detecting choice bi

 Résumé: Can we successfully ignore information we deem irrelevant or unreliable? And can we become aware of how such information can bias our choices? The ability to introspect and evaluate the factors influencing our decisions constitutes a key metacognitive function. However, little is known of the cognitive processes that underlie our subjective sense of being able to detect and resist unwanted influence. In this talk, I will present new studies investigating participants’ ability to make decisions free of influence. In a series of novel behavioural and neuroimaging experiments, we measured participants’ ability to voluntarily ignore information that could bias their choices. We found that irrelevant information and misinformation continued to bias decisions, even when explicitly labelled as such. This biasing effect could be manipulated experimentally and led participants to adopt suboptimal decision strategies. More importantly, participants largely remained unaware of these biases and did not manage to compensate for them, for instance by seeking additional information.