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Experimental Brain Research

, Volume 82, Issue 1, pp 219–221 | Cite as

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

  • H. Aizawa
  • H. Mushiake
  • M. Inase
  • J. Tanji
Research Note

Summary

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.

Key words

Motor cortex Cerebral cortex Neuron Movement Monkey 

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References

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Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • H. Aizawa
    • 1
  • H. Mushiake
    • 1
  • M. Inase
    • 1
  • J. Tanji
    • 1
  1. 1.Department of PhysiologyTohoku University, School of MedicineSendaiJapan

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