Activation of left intraparietal sulcus using a IMRI conceptual praxis paradigm
Arq. neuropsiquiatr
; Arq. neuropsiquiatr;56(4): 808-11, dez. 1998. ilus
Article
en En
| LILACS
| ID: lil-226023
Biblioteca responsable:
BR1.1
ABSTRACT
The present paper reports the results of a fMRI subtraction study of the pattern of cortical activation induced by an ideational praxis paradigm in six normal right-handed subjects. The control task consisted of a sequence of complex meaningless hand movements. A complete study was done for each hand in each subject. The left intraparietal sulcus was the only structure activated in all subjects regardless of the hand used in the task. These findings, albeit preliminary, suggest that the organization of actions involving the mediation of tools and utensils are strongly lateralized to the left hemisphere and that damage to the dominant imtraparietal sulcus may be critical for the development of the clinical syndrome of conceptual apraxia.
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Lóbulo Parietal
/
Imagen por Resonancia Magnética
/
Corteza Cerebral
/
Mano
/
Movimiento
Límite:
Humans
Idioma:
En
Revista:
Arq Neuropsiquiatr
/
Arq. neuropsiquiatr
/
Arq. neuropsiquiatr. (Online)
/
Arquivos de neuro-psiquiatria (Impresso)
Asunto de la revista:
NEUROLOGIA
/
PSIQUIATRIA
Año:
1998
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Brasil