Average orientation is more accessible through object boundaries than surface features.
J Exp Psychol Hum Percept Perform
; 38(3): 585-8, 2012 Jun.
Article
em En
| MEDLINE
| ID: mdl-22082217
ABSTRACT
In a glance, the visual system can provide a summary of some kinds of information about objects in a scene. We explore how summary information about orientation is extracted and find that some representations of orientation are privileged over others. Participants judged the average orientation of either a set of 6 bars or 6 circular gratings. For bars, orientation information was carried by object boundary features, while for gratings, orientation was carried by internal surface features. The results showed more accurate averaging performance for bars than for gratings, even when controlling for potential differences in encoding precision for solitary objects. We suggest that, during orientation averaging, the visual system prioritizes object boundaries over surface features. This privilege for boundary features may lead to a better representation of the spatial layout of a scene.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Orientação
/
Percepção Espacial
Limite:
Humans
Idioma:
En
Revista:
J Exp Psychol Hum Percept Perform
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos