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Acta Psychologica Sinica
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The effects of motor skill level and somatosensory input on motor imagery: An fMRI study on basketball free shot
ZHANG Lanlan1; SHEN Cheng1; ZHU Hua1; LI Xuepei1; DAI Wen1; WU Yin2; ZHANG Jian1
(1 School of Kinesiology, Shanghai University of Sport, Shanghai 200438, China) (2 School of Economics and Management, Shanghai University Of Sport, Shanghai 200438, China)
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Abstract  

The behavioral performance and neural responses of imagining a motor task may be different in individuals with different motor skill levels. Utilization of special instrument induces plastic changes in the brain in the way that tool users combine the tool in their body schema. However, the neural correlates underlying these effects are still not clear. Using functional magnetic resonance imaging (fMRI), we investigated the effects of motor skill level and somatosensory input on motor imagery. We tested 12 basketball players and 12 novices when they performed kinesthetic motor imagery of basketball free shot under with-ball and without-ball conditions. Motor imagery duration was calculated. Motor imagery strategy and quality were measured with self-evaluation questionnaires. Field training was implemented and the physical performance of the task was recorded before the main experiment. The time difference between the duration for motor imagery and physical performance was smaller in basketball players than that in novices. The motor imagery strategy scores with self-evaluation questionnaire were same in two groups, indicating that all participants performed kinesthetic imagery successfully. The general kinesthetic and visual imagery abilities between groups showed no significant differences whereas basketball players showed better kinesthetic imagery quality for free shot movements. The scores for the quality of both kinesthetic and visual imagery were higher under with-ball than that under without-ball condition in both groups, suggesting that participants in both groups performed better motor imagery under with-ball condition. fMRI analysis revealed (1) basketball players showed greater mirror neuron system activation relative to novices; (2) the activation of mirror neuron system in basketball players were lower in with-ball compared to without-ball condition. Moreover, the activity of right inferior frontal gyrus was negatively correlated with the self-evaluated kinesthetic imagery scores only for the basketball players. We conclude that better motor imagery is related to higher level motor skill. The application of task- specific instrument may be required for this facilitation effect. Utilization of special instrument induces plastic changes in mirror neuron system. The findings may provide evidence for the implication of motor imagery with utilization of specific instrument in the promotion of motor skill.

Keywords motor skill level      somatosensory input      motor imagery      mirror neuron system      functional magnetic resonance imaging     
Corresponding Authors: ZHANG Jian, E-mail: zhangjian@sus.edu.cn    
Issue Date: 25 March 2017
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ZHANG Lanlan
SHEN Cheng
ZHU Hua
LI Xuepei
DAI Wen
WU Yin
ZHANG Jian
Cite this article:   
ZHANG Lanlan,SHEN Cheng,ZHU Hua, et al. The effects of motor skill level and somatosensory input on motor imagery: An fMRI study on basketball free shot[J]. Acta Psychologica Sinica, 10.3724/SP.J.1041.2017.00307
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http://journal.psych.ac.cn/xlxb/EN/10.3724/SP.J.1041.2017.00307     OR     http://journal.psych.ac.cn/xlxb/EN/Y2017/V49/I3/307
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