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

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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.

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References

  • Evarts EV (1966) Pyramidal tract neuron activity associated with a conditional hand movement in the monkey. J Neurophysiol 29:1011–1027

    Google Scholar 

  • Gentilucci M, Fogassi L, Luppino G, Matelli M, Camarda R, Rizzolatti G (1988) Functional organization of inferior area 6 in the macaque monkey. I. Somatotopy and the control of proximal movements. Exp Brain Res 71:475–490

    PubMed  Google Scholar 

  • Matsunami K, Hamada I (1981) Characteristics of the ipsilateral movement-related neuron in the motor cortex of the monkey. Brain Res 204:29–42

    Google Scholar 

  • Sato KC, Tanji J (1989) Digit-muscle responses evoked from multiple intracortical foci in monkey precentral motor cortex. J Neurophysiol 62:959–970

    Google Scholar 

  • Tanji J, Kurata K (1982) Comparison of movement-related activity in two cortical motor areas of primates. J Neurophysiol 48:633–653

    Google Scholar 

  • Tanji J, Okano K, Sato KC (1988) Neuronal activity in cortical motor areas related to ipsilateral, contralateral, and bilateral digit movements of the monkey. J Neurophysiol 60:325–343

    CAS  PubMed  Google Scholar 

  • Wannier TMJ, Toeltle M, Hepp-Reymond MC (1986) On the problem of multiple hand representation in area 4 of the alert Macaca fascicularis. Experientia 42:711

    Google Scholar 

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Authors and Affiliations

  1. Department of Physiology, Tohoku University, School of Medicine, 1-1, Seiryo-cho, Aoba-ku, 980, Sendai, Japan

    H. Aizawa, H. Mushiake, M. Inase & J. Tanji

Authors
  1. H. Aizawa
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  2. H. Mushiake
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  3. M. Inase
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  4. J. Tanji
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Aizawa, H., Mushiake, H., Inase, M. et al. An output zone of the monkey primary motor cortex specialized for bilateral hand movement. Exp Brain Res 82, 219–221 (1990). https://doi.org/10.1007/BF00230856

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  • DOI: https://doi.org/10.1007/BF00230856

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