Conscious and subconscious sensorimotor synchronization--prefrontal cortex and the influence of awareness.
Neuroimage
; 15(2): 345-52, 2002 Feb.
Article
em En
| MEDLINE
| ID: mdl-11798270
ABSTRACT
One of the most compelling challenges for modern neuroscience is the influence of awareness on behavior. We studied prefrontal correlates of conscious and subconscious motor adjustments to changing auditory rhythms using regional cerebral blood flow measurements. At a subconscious level, movement adjustments were performed employing bilateral ventral mediofrontal cortex. Awareness of change without explicit knowledge of the nature of change led to additional ventral prefrontal and premotor but not dorsolateral prefrontal activations. Only fully conscious motor adaptations to a changing rhythmic pattern showed prominent involvement of anterior cingulate and dorsolateral prefrontal cortex. These results demonstrate that while ventral prefrontal areas may be engaged in motor adaptations performed subconsciously, only fully conscious motor control which includes motor planning will involve dorsolateral prefrontal cortex.
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Base de dados:
MEDLINE
Assunto principal:
Conscientização
/
Inconsciente Psicológico
/
Córtex Pré-Frontal
/
Estado de Consciência
Idioma:
En
Revista:
Neuroimage
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Alemanha