Control of saccadic latency in a dynamic environment: allocation of saccades in time follows the matching law

Vullings, Cecile; Madelain, Laurent

Type de document :

Article dans une revue scientifique

DOI :

10.1152/jn.00634.2017

PMID :

29118197

URL permanente :

http://hdl.handle.net/20.500.12210/3938

Titre :

Control of saccadic latency in a dynamic environment: allocation of saccades in time follows the matching law

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 Neurophysiology

Nom court de la revue :

J. Neurophysiol.

Numéro :

119

Pagination :

413-421

Date de publication :

2018-02

ISSN :

1522-1598

Discipline(s) HAL :

Sciences cognitives

Résumé en anglais : [en]

When exploring the visual environment, one uses saccades to shift gaze and fixation to gather spatially and temporally localized information. We propose that the temporal structure of our environment should constrain the ...
Lire la suite >When exploring the visual environment, one uses saccades to shift gaze and fixation to gather spatially and temporally localized information. We propose that the temporal structure of our environment should constrain the temporal allocation of saccades. Here, we probe the possibility of learning to control saccadic latencies in a choice paradigm. Six participants made saccades within 80-300ms following a target horizontally stepping by 10 deg between two fixed locations. For each participant we constructed two classes of latencies, "short" and "long", using the first and last quartiles of the individual baseline distribution (e.g. [80;152]ms and [185;300]ms respectively). We then concurrently reinforced each class in three blocked conditions across about 60 experimental sessions per participant using different reinforcement probabilities such that the relative ratio of reinforcement rates for "short" versus "long" latencies was either 9/1, 1/9, or 1/1. Latency distributions followed the reinforcement conditions: distributions shifted toward the shorter or longer values or became strongly bimodal. Moreover, the relative rates of "short" over "long" latencies matched the relative rates of reinforcers earned for the corresponding latencies (slope up to 0.95), which reveal the ability to choose when to saccade. Our results reveal that learned contingencies considerably affect the allocation of saccades in time and are in line with recent studies on the temporal adjustment of behavior to dynamic environments. This study provides strong evidence for fine operant control of saccadic latency, supporting the hypothesis of a cost-benefit control of saccade latencies.Lire moins >

Langue :

Anglais

Audience :

Non spécifiée

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 :

2019-02-13T14:17:41Z
2019-12-12T07:47:54Z

Fichiers

vullings-madelain-2018-control-of-saccadic-latency-in-a-dynamic-environment-allocation-of-saccades-in-time-follows-the.pdf
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Historique des modifications

Numéro de version	Lien	Date de modification
5	20.500.12210/3938	2024-01-26T08:09:58Z
4	20.500.12210/3938.4	2024-01-12T14:59:08Z
3	20.500.12210/3938.3	2024-01-11T08:40:57Z
2	20.500.12210/3938.2*	2019-12-12T07:45:51Z
1	20.500.12210/3938.1	2019-02-13T14:17:41Z

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Control of saccadic latency in a dynamic ...

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Excel

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