Activity in the parietal area during visuomotor learning with optical rotation

Kentaro Inoue, Ryuta Kawashima, Kazunori Satoh, Shigeo Kinomura, Ryoui Goto, Motoaki Sugiura, Masatoshi Ito, Hiroshi Fukuda

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)

Abstract

REGIONAL cerebral blood flow (rCBF) was measured in six subjects to study changes of activity in the parietal cortex during learning of a visually guided pointing task with a discrepancy of visuomotor coordination and to determine whether reorganization affects the parietal activity after learning. During the early stage of learning, the right posterior parietal cortex showed a significant increase in rCBF. During the late stage, on the other hand, significant activation was noted in the postcentral gyrus of the right hemisphere. These results support a role for the posterior parietal cortex in remapping visuomotor coordinates and suggest the involvement of the human postcentral gyrus in retaining sensorimotor coordinates, considered to relate to the self image of the hand.

Original languageEnglish
Pages (from-to)3979-3983
Number of pages5
JournalNeuroReport
Volume8
Issue number18
DOIs
Publication statusPublished - 1997 Dec 22

Keywords

  • Coordinate transformation
  • Human brain
  • Parietal cortex
  • Pointing movements
  • Positron emission tomography (PET)
  • Visuomotor learning

ASJC Scopus subject areas

  • Neuroscience(all)

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