両手動作と両側転移における大脳半球間の相補性

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  • 乾 信之
    鳴門教育大学生活・健康系(保健体育)教育講座

書誌事項

タイトル別名
  • Complementary relations between the cerebral hemispheres in bimanual action and bilateral transfer
  • リョウテ ドウサ ト リョウソク テンイ ニ オケル ダイノウ ハンキュウ カン ノ ソウホセイ

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説明

With respect to motor control, scientists have long assumed, on the basis of both clinical findings and neuropsychological studies, that there are interhemispheric asymmetries in the human cerebrum. The left hemisphere has been reported to be dominant for feedforward aspects of motor control as well as for speech processing. On the other hand, the right hemisphere is dominant for closed-loop motor processes, facial recognition, and attentional monitoring. The present review presents experimental evidence for interactions between the cerebral hemispheres in the bimanual control of muscle force and movement timing and bilateral transfer of perceptual-motor information for motor skill. First, the asymmetrical control of force and the symmetrical control of timing in bimanual simultaneous hand movements are discussed. Second, the entrainment of force in bimanual simultaneous hand movements with asymmetrical forces is described. Third, the author addresses the lateralization of transfer of visuomotor information between the right and left hands. During unimanual hand movements with visual feedback, whereas positive transfers from the left to the right hand were observed for right-handers, left-handers showed the opposite direction for positive transfers. Thus, because the hemispheres differ in the kinds of perceptual-motor information they most effectively encode, they complement each other.

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  • 体育学研究

    体育学研究 50 (6), 629-639, 2005

    一般社団法人 日本体育・スポーツ・健康学会

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