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Titolo:
Visual awareness and the on-line modification of action
Autore:
Fecteau, JH; Chua, R; Franks, I; Enns, JT;
Indirizzi:
Univ British Columbia, Dept Psychol, Vancouver, BC V6T 1Z4, Canada Univ British Columbia Vancouver BC Canada V6T 1Z4 ver, BC V6T 1Z4, Canada
Titolo Testata:
CANADIAN JOURNAL OF EXPERIMENTAL PSYCHOLOGY-REVUE CANADIENNE DE PSYCHOLOGIE EXPERIMENTALE
fascicolo: 2, volume: 55, anno: 2001,
pagine: 104 - 110
SICI:
1196-1961(200106)55:2<104:VAATOM>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
TARGET LOCATION; ARM MOVEMENTS; HAND; EYE; PERCEPTION; DISPLACEMENT; POSITION; FEEDBACK; VISION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Enns, JT Univ British Columbia, Dept Psychol, 2136 W Mall, Vancouver, BC V6T 1Z4, Canada Univ British Columbia 2136 W Mall Vancouver BC Canada V6T 1Z4 ada
Citazione:
J.H. Fecteau et al., "Visual awareness and the on-line modification of action", CAN J EXP P, 55(2), 2001, pp. 104-110

Abstract

An influential theory of visually guided action proposes that (a) conscious perception of target displacement disrupts on-line action and (b) small target perturbations are inconsequential, provided the participant is unaware of them. This study examined these claims in a study of rapid aiming movements to targets. Novel features included on-line verbal reports of target displacement, and the factorial combination of small versus large displacements occurring near peak saccadic velocity or 100 ms later. Although awareness of target displacement had no effect on movement kinematics. even smalllarger displacements near peak saccadic velocity affected kinematic measures. These results support both a strong view of visual stream separation inthe on-line control of action and richer spa tial coding by unconscious processes than has previously been acknowledged.

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Documento generato il 08/04/20 alle ore 09:08:41