Discriminative control of saccade latencies

Vullings, Cecile; Madelain, Laurent

Type de document :

Article dans une revue scientifique

DOI :

10.1167/19.3.16

URL permanente :

http://hdl.handle.net/20.500.12210/40365

Titre :

Discriminative control of saccade latencies

Auteur(s) :

Vullings, Cecile [Auteur]
Laboratoire Sciences Cognitives et Sciences Affectives - UMR 9193 [SCALab]
Madelain, Laurent [Auteur]

Laboratoire Sciences Cognitives et Sciences Affectives - UMR 9193 [SCALab]

Titre de la revue :

JOURNAL OF VISION

Nom court de la revue :

Journal of Vision

Numéro :

Pagination :

Éditeur :

Association for Research in Vision and Ophthalmology (ARVO)

Date de publication :

2019-03-29

ISSN :

1534-7362

Discipline(s) HAL :

Sciences cognitives

Résumé en anglais : [en]

Recent studies have demonstrated that saccadic reaction times (SRTs) are influenced by the temporal regularities of dynamic environments (Vullings Madelain, 2018). Here, we ask whether discriminative control (i.e., the ...
Lire la suite >Recent studies have demonstrated that saccadic reaction times (SRTs) are influenced by the temporal regularities of dynamic environments (Vullings Madelain, 2018). Here, we ask whether discriminative control (i.e., the possibility to use external stimuli signaling the future state of the environment) of latencies in a search task might be established using reinforcement contingencies. Eight participants made saccades within 80–750 ms toward a target displayed among distractors. We constructed two latency classes, “short” and “long,” using the first and last quartiles of the individual baseline distributions. We then used a latency-contingent display paradigm in which finding the visual target among other items was made contingent upon specific SRTs. For a first group, the postsaccadic target was displayed only following short latencies with leftward saccades, and following long latencies with rightward saccades. The opposite was true for a second group. When short- and long-latency saccades were reinforced (i.e., the target was displayed) depending on the saccade direction, median latencies differed by 74 ms on average (all outside the 98% null hypothesis confidence intervals). Posttraining, in the absence of reinforcement, we still observed strong differences in latency distributions, averaging 64 ms for leftward versus rightward saccades. Our results demonstrate the discriminative control of SRTs, further supporting the effects of reinforcement learning for saccade. This study reveals that saccade triggering is finely controlled by learned temporal and spatial properties of the environment using predictive mechanisms.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Projet ANR :

Renforcement et mouvements oculaires

Établissement(s) :

Université de Lille
CNRS
CHU Lille

Collections :

Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193

Date de dépôt :

2021-06-24T07:31:27Z
2021-07-19T09:19:18Z

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Historique des modifications

Numéro de version	Lien	Date de modification
3	20.500.12210/40365	2024-01-11T08:42:30Z
2	20.500.12210/40365.2*	2021-07-19T09:06:56Z
1	20.500.12210/40365.1	2021-06-24T07:31:27Z

*Version sélectionnée