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Titolo:
Cerebral midline structures in bimanual coordination
Autore:
Stephen, KM; Binkofski, F; Posse, S; Seitz, RJ; Freund, HJ;
Indirizzi:
Univ Dusseldorf, Neurol Klin, D-40225 Dusseldorf, Germany Univ DusseldorfDusseldorf Germany D-40225 , D-40225 Dusseldorf, Germany KFA Julich GmbH, Forschungszentrum, Inst Med, Julich, Germany KFA Julich GmbH Julich Germany chungszentrum, Inst Med, Julich, Germany
Titolo Testata:
EXPERIMENTAL BRAIN RESEARCH
fascicolo: 1-2, volume: 128, anno: 1999,
pagine: 243 - 249
SICI:
0014-4819(199909)128:1-2<243:CMSIBC>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
SUPPLEMENTARY MOTOR AREA; POSITRON EMISSION TOMOGRAPHY; NEURONAL-ACTIVITY; CINGULATE CORTEX; PREMOTOR AREAS; FRONTAL-LOBE; HUMAN BRAIN; MOVEMENTS; MONKEYS; REPRESENTATIONS;
Keywords:
bimanual movements; mesial frontal cortex; supplementary motor area (SMA); cingulate motor areas (CMA); functional magnetic resonance imaging (fMRI);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Stephen, KM Univ Dusseldorf, Neurol Klin, Moorenstr 5, D-40225 Dusseldorf,Germany Univ Dusseldorf Moorenstr 5 Dusseldorf Germany D-40225 ermany
Citazione:
K.M. Stephen et al., "Cerebral midline structures in bimanual coordination", EXP BRAIN R, 128(1-2), 1999, pp. 243-249

Abstract

In six healthy right-handed volunteers, we compared the cerebral activation pattern related to unimanual right- and left-hand movements and to bimanual in-phase and anti-phase movements using functional magnetic resonance imaging (fMRI). Internally paced unimanual finger-to-thumb opposition movements led to a strong contralateral activation of primary sensorimotor areas in all six subjects. Midline activity was lateralized to the left side during right-hand movements, but to both sides during left-hand movements. Activity patterns of bimanual in-phase movements resembled the combined activitypatterns of the two unimanual conditions: right and left hemispheric activations of the primary sensorimotor cortices and predominantly left-sided medial frontal activity. In contrast, during anti-phase movements, we observed a clear increase in activity, in both right and left frontal midline areas and in right hemispheric, mainly dorsolateral premotor areas compared to in-phase movements. These results indicate that frontal midline activity isnot specific for bimanual movements per se. It can already be involved during simple unimanual movements but becomes progressively more involved during more complex aspects of movement control.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 09:32:46