Global feature-based attention for motion and color.

Détails

ID Serval
serval:BIB_FE4A40B6C936
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Global feature-based attention for motion and color.
Périodique
Vision Research
Auteur(s)
Saenz M., Buraĉas G.T., Boynton G.M.
ISSN
0042-6989 (Print)
ISSN-L
0042-6989
Statut éditorial
Publié
Date de publication
2003
Peer-reviewed
Oui
Volume
43
Numéro
6
Pages
629-637
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, U.S. Gov't, P.H.S.
Résumé
We used a divided attention psychophysical task to test the hypothesis that visual attention to a stimulus feature(1) facilitates the processing of other stimuli sharing the same feature. Performance on a dual-task was significantly better when human observers divided attention across two spatially separate stimuli sharing a common feature (same direction of motion or same color) compared to opposing features. This attentional effect was dependent upon the presence of competing stimuli. These results are consistent with a spatially global feature-based mechanism of attention that increases the response of cortical neurons tuned to an attended feature throughout the visual field.
Mots-clé
Adult, Attention, Color Perception, Discrimination (Psychology), Humans, Learning, Motion Perception, Photic Stimulation/methods, Psychophysics
Pubmed
Web of science
Création de la notice
06/03/2012 18:58
Dernière modification de la notice
20/08/2019 17:28
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