Attention-referenced visual representations: evidence from impaired visual localization.
J Exp Psychol Hum Percept Perform
; 26(3): 917-33, 2000 Jun.
Article
en En
| MEDLINE
| ID: mdl-10884002
ABSTRACT
Spatial representations in the visual system were probed in 4 experiments involving A. H., a woman with a developmental deficit in localizing visual stimuli. Previous research (M. McCloskey et al., 1995) has shown that A. H.'s localization errors take the form of reflections across a central vertical or horizontal axis (e.g., a stimulus 30 degrees to her left localized to a position 30 degrees to her right). The present experiments demonstrate that A. H.'s errors vary systematically as a function of where her attention is focused, independent of how her eyes, head, or body are oriented, or what potential reference points are present in the visual field. These results suggest that the normal visual system constructs attention-referenced spatial representations, in which the focus of attention defines the origin of a spatial coordinate system. A more general implication is that some of the brain's spatial representations take the form of coordinate systems.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trastornos de la Percepción
/
Atención
/
Percepción Espacial
/
Percepción Visual
Límite:
Adult
/
Female
/
Humans
Idioma:
En
Revista:
J Exp Psychol Hum Percept Perform
Año:
2000
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA