Somatotopic organization of the medial wall of the cerebral hemispheres: a 3 Tesla fMRI study.
Neuroreport
; 12(17): 3811-4, 2001 Dec 04.
Article
em En
| MEDLINE
| ID: mdl-11726800
ABSTRACT
Somatotopic organization of the human medial wall of the cerebral hemispheres was studied using functional MRI conducted at high field strength (3 T) with fine spatial resolution ( approximately 2 mm). Healthy subjects performed paced, repetitive movements of the fingers and toes. Within the supplementary motor area (SMA), two regions were identified finger movements activated a region rostral and superior to that for toe movements. Two activation foci were also identified in the cingulate motor area toe movements activated a region rostral and ventral to that activated by finger movements. All foci were located between the anterior and posterior commissures. Our results confirm previous human and non-human primate studies regarding the rostral-caudal organization of the SMA and CMA. The dorsal-ventral organization of the CMA, however, appears to be divergent from results derived from cortical stimulation studies conducted in non-human primates.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Mapeamento Encefálico
/
Dedos do Pé
/
Dedos
/
Giro do Cíngulo
/
Córtex Motor
/
Movimento
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Neuroreport
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Estados Unidos