Cortical and subcortical structures for the manipulation of chopsticks : A PET study Hayato Tsuda 1 , Tomoko Aoki 2 , Naohiko Oku 3 , Jun Hatazawa 3 , Hiroshi Kinoshita 4 1Department of Occupational Therapy,Kawasaki College of Medical Technology 2Department of Kinesiology,Pennsylvania State University (US) 3Department of Nuclear Medicine and Tracer Kinetics,Graduate School of Medicine,Osaka University 4Biomechanics & Motor Control Lab,Graduate School of Medicine,Osaka University Keyword: (箸操作) , 脳血流 , 健常者 , Manipulation of chopsticks , rCBF (regional cerebral blood flow) , Normal volunteers pp.28-38
Published Date 2006/2/15
  • Abstract
  • Look Inside
  • Reference
  • Cited by

 It is considered that humans have evoked a specialized network in their left hemisphere when using tools with the right hand. Although chopsticks are familiar tableware in daily living and consist simply of only two slender sticks, they demand a highly advanced and elegant skill when they are manipulated properly. The aim of this study was to investigate the functional brain areas associated with manipulation of the chopsticks. An H215O positron emission tomography (PET) was performed using 6 normal volunteers to measure regional cerebral blood flow during picking a small object repetitively. The results showed significant activation of the primary motor area (M1), primary sensory area (S1), premotor area (PM), superior parietal lobule (BA7), inferior parietal lobule (BA39/40), visual cortex (BA17/18/19), vermis, dentate nucleus, paramedian lobule and hemispheres of the cerebellum.

Copyright © 2006, Japanese Association of Occupational Therapists. All rights reserved.


電子版ISSN 印刷版ISSN 0289-4920 日本作業療法士協会