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Relationship between Mental State and Brain Effenciency in the Process of Movement Operation

ZHENG Fan-hui, WANG Dao, XU Wang-yu, et al (Shanghai Institute of Sports Science, Shanghai 200030, China)  
The researchers abroad have made a series of studies on the relationship between mental state and brain effenciency in the process of movement operation with EEG power spectrum and the technique of event-related potential analysis. The result shows the following:(1)Compared with the beginners, the whole-brain α wave band power of the elite shooters increases significantly in the ready-to-shoot period. (2)The activation degree of the left temple (T3) of the elite shooters is lower than the right temple (T4) during the ready-to-shoot period. This difference does not appear during breaks. The temporal α wave of the beginners at the ready-to-shoot stage does not show the same phenomenon of the brain functions. (3)EEG activity patterns correlates with the implementing tasks. It can display the characteristics of the tasks. (4) EEG activity patterns may be the result of athletes' long-term training and possess individual speciality. (5) The EEG activity patterns that are beneficial to movement can be improved by training.The Theory of Psychomotor Efficiency has been put forward to explain and sum up the above-mentioned results. According to the theory, the acquirement of exercise ability is a process of adaptation. The training shows the result of reducing or refining the non-movement process in cerebral cortex. Thus the process that has nothing to do with the task is deleted. The nerve resources can be distributed more economically and efficiently.
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