Titre :

Individual differences in the perception of cue-outcome contingencies: a signal detection analysis.

Auteur(s) :

Jozefowiez, Jeremie [Auteur]
Laboratoire Sciences Cognitives et Sciences Affectives - UMR 9193 [SCALab]

Titre de la revue :

Behavioural Processes

Numéro :

188

Pagination :

p.104398

Date de publication :

2021-07

Mot(s)-clé(s) en anglais :

Associative learning
Contingency assessment
Signal detection theory
Single-subject design
Streamed-trial procedure.

Discipline(s) HAL :

Sciences cognitives

Résumé en anglais : [en]

In a signal detection theory (SDT) approach to associative learning, one assumes that, when a subject is exposed to a flow of stimuli, an association is created between the internal representations of a cue and of an ...
Lire la suite >In a signal detection theory (SDT) approach to associative learning, one assumes that, when a subject is exposed to a flow of stimuli, an association is created between the internal representations of a cue and of an outcome, allowing the representation of the cue to activate the representation of the outcome. The outcome activation is a random variable drawn from a Gaussian distribution with mean m (sensitivity to the contingency) and standard deviation d (variability in outcome activation). Depending on whether the outcome activation is above or below various decision thresholds, the participant perceives either a negative, a null, or a positive contingency between the cue and the outcome. This study presents a detailed SDT analysis of the performance of four participants on whom data in a contingency assessment task were collected almost daily during several months. Parameters from the SDT model proved relatively stable over time, except if feedback was provided to the subject. In that case, for some participants but not all, the sensitivity increased. The decision criteria were also affected. Some of these changes endured despite the discontinuation of feedback. The variability in outcome activation was not affected by the feedback.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Établissement(s) :

Université de Lille
CNRS
CHU Lille

Collections :

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

Équipe(s) de recherche :

Équipe Action, Vision et Apprentissage (AVA)

Date de dépôt :

2023-11-22T15:40:21Z
2023-11-23T09:14:12Z