《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2020, Vol. 26 ›› Issue (7): 813-819.doi: 10.3969/j.issn.1006-9771.2020.07.015

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Application of Mental Rotation Test in Motor Imagery Ability Assessment for Stroke Patients

WANG He-wei1,WANG Yun-long2,LU Xiao-feng3,ZHAO Si-qi3,WANG Chuan-kai4,DING Li1,CHEN Shu-geng1,WANG Ying-ying5,WANG Jian-hui2,JIA Jie1()   

  1. 1. Huashan Hospital, Fudan University, Shanghai 200040, China
    2. Department of Rehabilitation Medicine, Nanshi Hospital Affiliated to Henan University, Nanyang, Henan 473000, China
    3. School of Communication & Information Engineering, Shanghai University, Shanghai 200072, China
    4. Central Hospital of Jing'an District, Shanghai 200040, China
    5. Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China
  • Received:2019-02-13 Revised:2019-07-17 Published:2020-07-25 Online:2020-07-24
  • Contact: JIA Jie E-mail:shannonjj@126.com
  • Supported by:
    National Key R & D Program of China(2018YFC2002301);Shanghai Commission for Health and Family Research Planning(201540197);Shanghai Science and Technology Commission Scientific Research Program(16441905302)

Abstract:

Objective To study the judgment strategies of stroke patients facing different visual stimulus and the main factors affecting the mental rotation test results. Methods From May to October, 2018, 15 stroke patients and 15 age-sex-education-matched healthy controls accepted standard software-based mental rotation tests with four kinds of visual stimulus: hand back, hand palm, Chinese characters and alphabets. Reaction time and response accuracy were recorded. All the subjects were assessed with Montreal Cognitive Assessment (MoCA), and the patients were assessed with Fugl-Meyer Assessment-Upper Extremities (FMA-UE) additionally. Results When hand back, hand palm and alphabets worked as visual stimulus, the response accuracy was less in the patients than in the controls (F > 7.027, P < 0.05). For all the tests, the reaction time was more in the patients than in the controls ( F > 14.827, P < 0.001). The main effect of rotation angle was significant to reaction time when picture of hands as visual stimulus ( F > 7.747, P < 0.001), while it was the least at 0°. The MoCA scores negatively correlated with reaction time in both groups ( r < -0.375, P < 0.05), as well as the FMA-UE scores in the patients ( r < -0.581, P < 0.05). Conclusion Different types of visual stimulus may affect the judgment strategies and results of mental rotation test. Motor imagery ability is impaired for stroke patients, however, the basic reaction model maintains somehow.

Key words: stroke, mental rotation test, motor imagery, visual stimulation, assessment

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