• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1997 Fiscal Year Final Research Report Summary

Dynamic Analysis of Information Processing in Brain for Reaching Movements

Research Project

Project/Area Number 08680878
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 神経・脳内生理学
Research InstitutionHIROSAKI UNIVERSITY (1997)
Tohoku University (1996)

Principal Investigator

KURATA Kiyoshi  Hirosaki University School of Medicine, Professor, 医学部, 教授 (30170070)

Project Period (FY) 1996 – 1997
KeywordsCerebral cortex / Premotor cortex / Sensorimotor integration / Visual coordinates / Motor coodinates / Transformation of coordinates
Research Abstract

The ventral premotor cortex (PMv)' of monkeys has been assumed to exert bilateral control over arm movements. However, it has been suggested recently that the PMv is the site where spatial visual inputs are transformed to moter commands. Then, an apperent relation to bilateral arm movements may be regarded as a neural process closer to the inputs from both visual hemifields. On the other hand, if neural processing is closer to the final motor commands, neuronal activity is expected to be more closely related to contralateral arm movements. To examine these possibilities, in the presence of shift prisms that dissociated visual from motor space, two monkeys were trained to reach a visually presented target by either their right or left arm. Before target presentation, auditory cues instructed which arm should be used for the task. Three types of movement-related activities were recorded in PMv : the first reflected visual, but not motor, space (V neurons) ; the second reflected motor, but not visual, space (M neurons) ; and the third was intermediate. V tended to be related to bilateral and M neurons to contralateral arm movements. The findings seem to support the above view on the role of PMv in visually guided arm movements.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Kurata, K: "Quantitative analyses of thalamic and cortical origins of neurons projecting to the rostral and caudal forelimb motor areas in the cerebral cortex of rats." Brain Research. 781. 137-147 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 蔵田 潔: "運動前野背側部と運動準備活動" 神経研究の進歩. 42. 59-67 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 蔵田 潔: "運動前野に関する新しい知見" 臨床脳波. 38. 158-161 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 蔵田 潔: "運動の企画と発現" 臨床科学. 32. 1611-1615 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 蔵田 潔: "パーキンソニズムの神経機構" J.Clinical Rehabilitation. 6. 123-126 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 蔵田 潔: "運動制御と運動学習" 協同医書出版, 417 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Wang, Y,and Kurata, K: "Quantitative analyzes of thalamic and cortical origins of neurons progecting to the rostral and caudal forelimb motor areas in the cerebral cortex of rats." Brain Research. 781. 137-147 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kurata, K.: "Set-related activity in the dorsal premotor cortex" Advances in Neurological Sciences. 42. 59-67 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kurata, K.: "New findings on premotor cortex" Clinical EEG. 38. 158-161 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kurata, K.: "Motor plan and control" Clinical Science. 32. 1611-1615 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kurata, K.: "Neural mechanism of Parkinsonism" J.Clinical Rehabilitation. 6. 123-126 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kurata, K.: Motor Control and Motor Learning. Kyodo-Isho, 417 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1999-03-16  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi