Analysis of mirror neuron system activation during action observation alone and action observation with motor imagery tasks

被引:0
作者
Bülent Cengiz
Doğa Vurallı
Murat Zinnuroğlu
Gözde Bayer
Hassan Golmohammadzadeh
Zafer Günendi
Ali Emre Turgut
Bülent İrfanoğlu
Kutluk Bilge Arıkan
机构
[1] Gazi University Faculty of Medicine,Motor Control Laboratory, Department of Neurology
[2] Hacettepe University,Department of Bioengineering, Institute of Natural Sciences
[3] Atilim University,Cognitive Robotics Research Lab., Department of Mechatronics
[4] Middle East Technical University,Department of Mechanical Engineering
来源
Experimental Brain Research | 2018年 / 236卷
关键词
Action observation; Motor imagery; Corticomotor excitability; Transcranial magnetic stimulation;
D O I
暂无
中图分类号
学科分类号
摘要
This study aimed to explore the relationship between action observation (AO)-related corticomotor excitability changes and phases of observed action and to explore the effects of pure AO and concurrent AO and motor imagery (MI) state on corticomotor excitability using TMS. It was also investigated whether the mirror neuron system activity is muscle-specific. Fourteen healthy volunteers were enrolled in the study. EMG recordings were taken from the right first dorsal interosseous and the abductor digiti minimi muscles. There was a significant main effect of TMS timing (after the beginning of the movement, at the beginning of motor output state, and during black screen) on the mean motor evoked potential (MEP) amplitude. Mean MEP amplitudes for AO combined with MI were significantly higher than pure AO session. There was a significant interaction between session and TMS timing. There was no significant main effect of muscle on MEP amplitude. The results indicate that corticomotor excitability is modulated by different phases of the observed motor movement and this modulation is not muscle-specific. Simultaneous MI and AO enhance corticomotor excitability significantly compared to pure AO.
引用
收藏
页码:497 / 503
页数:6
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