No blindsight following hemidecortication in human subjects?
Neuroreport
; 7(12): 1990-4, 1996 Aug 12.
Article
em En
| MEDLINE
| ID: mdl-8905710
ABSTRACT
Using a guessing paradigm we measured visual sensitivity in the blind and normal half-fields of four cerebrally hemidecorticated patients. In the blind field, sensitivity was reduced by approximately 3 long units. Stimuli which produced significant detection also evoked conscious sensations of light and colour. Control experiments showed that although sensitivity in the blind field depended in a normal fashion on background luminance it was independent of the luminance of a local platform, and showed no spatial summation. This residual vision can be explained by intraocular light diffusion and reflection.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Percepção Visual
/
Encefalopatias
/
Sensibilidades de Contraste
/
Oftalmopatias
Limite:
Humans
/
Male
Idioma:
En
Revista:
Neuroreport
Assunto da revista:
NEUROLOGIA
Ano de publicação:
1996
Tipo de documento:
Article
País de afiliação:
Alemanha