Brain localization for arbitrary stimulus categories: a simple account based on Hebbian learning.
Proc Natl Acad Sci U S A
; 92(26): 12370-3, 1995 Dec 19.
Article
em En
| MEDLINE
| ID: mdl-8618903
ABSTRACT
A central theme of cognitive neuroscience is that different parts of the brain perform different functions. Recent evidence from neuropsychology suggests that even the processing of arbitrary stimulus categories that are defined solely by cultural conventions (e.g., letters versus digits) can become spatially segregated in the cerebral cortex. How could the processing of stimulus categories that are not innate and that have no inherent structural differences become segregated? We propose that the temporal clustering of stimuli from a given category interacts with Hebbian learning to lead to functional localization. Neural network simulations bear out this hypothesis.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Encéfalo
/
Mapeamento Encefálico
/
Aprendizagem
/
Modelos Neurológicos
/
Modelos Psicológicos
Limite:
Humans
Idioma:
En
Revista:
Proc Natl Acad Sci U S A
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
Estados Unidos