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Exp Brain Res. 1990;82(1):219-21.

An output zone of the monkey primary motor cortex specialized for bilateral hand movement.

Author information

1
Department of Physiology, Tohoku University, School of Medicine, Sendai, Japan.

Abstract

We have identified a subregion in the monkey primary precentral motor cortex (MI) that is characterized by its relationship to bilateral or ipsilateral hand movements. The subregion is located between the digit and face representation areas. The majority of single cells in this portion of MI exhibit distinct activity before and during visually triggered key-press movements performed by means of ipsilateral or contralateral digit flexion. Intracortical microstimulation evoked responses of ipsilateral, in addition to contralateral, digit muscles.

PMID:
2257909
DOI:
10.1007/bf00230856
[Indexed for MEDLINE]

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