A new look at the relationship between perceptual and motor responses - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Visual Cognition Année : 2004

A new look at the relationship between perceptual and motor responses

Résumé

A visual stimulus may affect a motor response although its visibility is prevented by a mask. This implies that the sensorimotor system is more susceptible to stimulation than the perceptual system. We report data that are contrary to this intuition. Experiments where both the observer's perceptual state related to the presence/absence of a masked stimulus and the motor behaviour elicited by the same stimulus were jointly assessed on a trial-by-trial basis show that masked visual stimulation at constant visibility (d') has two types of effect on the motor system. When the physical energy of the masked stimulus is weak, it affects the motor response only if it exceeds the observer's perceptual response criterion. It is only when the physical energy of the masked stimulus is relatively strong that its impact on the motor response is independent of the state of the perceptual system. This indicates that reflex,``nonconscious'' behaviour has a high energy threshold.

Domaines

Neurosciences
Fichier non déposé

Dates et versions

hal-02385776 , version 1 (02-12-2019)

Identifiants

Citer

Florian Waszak, Andrei Gorea. A new look at the relationship between perceptual and motor responses. Visual Cognition, 2004, 11 (8), pp.947-963. ⟨10.1080/13506280444000003⟩. ⟨hal-02385776⟩

Collections

CNRS
18 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More