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A method for using video presentation to increase the vividness and activity of cortical regions during motor imagery tasks

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Neural Regeneration Research 2021年第12期16卷 2431-2437页

作者： Kengo Fujiwara Masatomo Shibata Yoshinaga Awano Koji Shibayama Naoki Iso Moemi Matsuo Akira Nakashima Takefumi Moriuchi Wataru Mitsunaga Toshio Higashi Department of Clinical Services Nagasaki Rehabilitation HospitalNagasakiJapan Graduate School of Biomedical Sciences Nagasaki UniversityNagasakiJapan Department of Rehabilitation Faculty of Health SciencesTokyo Kasei UniversityTokyoJapan

In recent years,mental practice(MP)using laterally inverted video of a subject’s non-paralyzed upper limb to improve the vividness of presented motor imagery(MI)has been shown to be effective for improving the function of a paralyzed upper ***,no studies have yet assessed the activity of cortical regions engaged during MI task performance using inverse video presentations and neurophysiological *** study sought to investigate changes in MI vividness and hemodynamic changes in the cerebral cortex during MI performance under the following three conditions in near-infrared spectroscopy:MI-only without inverse video presentation(MI-only),MI with action observation(AO)of an inverse video presentation of another person’s hand(AO+MI(other hand)),and MI with AO of an inverse video presentation of a participant’s own hand(AO+MI(own hand)).Participants included 66 healthy right-handed adults(41 men and 25 women;mean age:26.3±4.3 years).There were 23 patients in the MI-only group(mean age:26.4±4.1 years),20 in the AO+MI(other hand)group(mean age:25.9±5.0 years),and 23 in the AO+MI(own hand)group(mean age:26.9±4.1 years).The MI task involved transferring 1 cm×1 cm blocks from one plate to another,once per second,using chopsticks held in the non-dominant *** on a visual analog scale(VAS),MI vividness was significantly higher in the AO+MI(own hand)group than in the MI-only group and the AO+MI(other hand)group.A main effect of condition was revealed in terms of MI vividness,as well as regions of interest(ROIs)in certain brain areas associated with motor *** data suggest that inverse video presentation of a person’s own hand enhances the MI vividness and increases the activity of motor-related cortical areas during *** study was approved by the Institutional Ethics Committee of Nagasaki University Graduate School of Biomedical and Health Sciences(approval No.18121303)on January 18,2019.

关键词： action observation cortical activity inverse video presentation mental practice motor imagery motor palsy paralysis recovery rehabilitation stroke

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