Universität zu Köln

Meister, Ingo G., Foltys, Henrik, Gallea, Cecile and Hallett, Mark (2010). How the Brain Handles Temporally Uncoupled Bimanual Movements. Cereb. Cortex, 20 (12). S. 2996 - 3005. CARY: OXFORD UNIV PRESS INC. ISSN 1460-2199

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Abstract

Whereas the cerebral representation of bimanual spatial coordination has been subject to prior research, the networks mediating bimanual temporal coordination are still unclear. The present study used functional imaging to investigate cerebral networks mediating temporally uncoupled bimanual finger movements. Three bimanual tasks were designed for the execution of movements with different timing and amplitude, with same timing but different amplitude, and with same timing and amplitude. Functional magnetic resonance imaging results showed an increase of activation within right premotor and dorsolateral prefrontal, bilateral inferior parietal, basal ganglia, and cerebellum areas related to temporally uncoupled bilateral finger movements. Further analyses showed a decrease of connectivity between homologous primary hand motor regions. In contrast, there was an increase of connectivity between motor regions and anterior cingulate, premotor and posterior parietal regions during bimanual movements that were spatially or both temporally and spatially uncoupled, compared with bimanual movements that were both spatially and temporally coupled. These results demonstrate that the extent of bihemispheric coupling of M1 areas is related to the degree of temporal synchronization of bimanual finger movements. Furthermore, inferior parietal and premotor regions play a key role for the implementation not only of spatial but also of temporal movement parameters in bimanual coordination.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Meister, Ingo G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Foltys, Henrik UNSPECIFIED UNSPECIFIED UNSPECIFIED Gallea, Cecile UNSPECIFIED UNSPECIFIED UNSPECIFIED Hallett, Mark UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-491253
DOI:	10.1093/cercor/bhq048
Journal or Publication Title:	Cereb. Cortex
Volume:	20
Number:	12
Page Range:	S. 2996 - 3005
Date:	2010
Publisher:	OXFORD UNIV PRESS INC
Place of Publication:	CARY
ISSN:	1460-2199
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CEREBRAL-BLOOD-FLOW; CORPUS-CALLOSUM; MOTOR AREAS; FINGER MOVEMENTS; MEDIAL WALL; COORDINATION; REPRESENTATION; INTERFERENCE; INHIBITION; ACTIVATION Multiple languages Neurosciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/49125