Effectiveness of action observed for sports function rehabilitation based on mirror neuron

摘要

To enhance the rehabilitation efficacy of action observation therapy underlying recovery of motor function after stroke, the influence of law on the excitability of the mirror neuron which is activated by the external motion stimulus is analyzed deeply from a mass of action observed experiments. Firstly, after designing motion sequences of a human upper limb and a manipulator to activate the human brain mirror neuron, subjects separately perform different types of movements in the process of electroencephalographic (EEG) acquisition. Secondly, the EEG signals were preprocessed to remove artifacts and eliminate noise, and then the processed EEG signals were reconstructed using the wavelet packet decomposition. Finally, the effectiveness of different types of movements is calculated and analyzed based on the mu suppression index which is obtained by the power spectrums of task state and rest state. The experimental results show that whether a human upper limb or a manipulator, the action sequences of having target, movement and no sound might be more effective activation than those which are no target, still and sound, and the manipulator motion sequences are stronger activation mirror neuron than the ones of human upper limb. So the action sequences with having target, movement and no sound may stronger activated the human brain mirror neuron. So this finding provides an effectively and quickly method to select out the movement sequences for different patients with action observation therapy, it maybe have significant clinical application value in sports function rehabilitation.