[Purpose] The aim of this study was to investigate whether the performance of a combination of observation and motor imagery of chopstick use (complex task) increased corticospinal excitability more than the performance of observation alone. [Subjects and Methods] We recruited 10 healthy subjects with no history of neurological diseases. Corticospinal excitability was assessed with the participants seated in front of a computer screen performing three tasks: (1) control, the subjects were instructed to relax; (2) OBS, the subjects were told to observe an action depicted in the video, and (3) OBS + IMG, the subjects were told to imagine performing an action depicted in a video. During tasks (2) and (3), a video was displayed on the computer screen showing the hand of a male subject using chopsticks to move small items of food from one dish to another (first person perspective). Imagery was performed kinesthetically. [Results] The MEP amplitude in the first dorsal interosseous was significantly increased during OBS+IMG relative to that in the control condition, but not that in the OBS condition. The MEP amplitude in the thenar muscles was significantly different between OBS and OBS+IMG. [Conclusion] These results suggest that the combination of observation and motor imagery of a complex task may be more effective than observation alone for motor rehabilitation purposes.
雑誌名
The Society of Physical Therapy Science
巻
23
号
5
ページ
703 - 706
発行年
2011-11-25
出版者
The Society of Physical Therapy Science
出版者別言語
理学療法科学学会
ISSN
09155287
書誌レコードID
AA10798949
権利
Copyright (c) 2011 by the Society of Physical Therapy Science
著者版フラグ
publisher
引用
The Society of Physical Therapy Science, 23(5), pp.703-706; 2011
Excitability Changes in the Human Primary Motor Cortex During Observation with Motor Imagery of Chopstick Use
JPTS23_703.pdf
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