Discrete and Effortful Imagined Movements Do Not Specifically Activate the Autonomic Nervous System

被引:19
作者
Demougeot, Laurent
Normand, Herve
Denise, Pierre
Papaxanthis, Charalambos
机构
[1] Université de Bourgogne, UFR STAPS, Dijon
[2] Institut National de la Santé et de la Recherche Médicale (INSERM), Departement de Motricité et Plasticité, Dijon
[3] Université de Caen, Faculté de Médecine, Caen
[4] Institut National dela Santé et dela Recherche Médicale (INSERM), Caen
关键词
SIMULATED MOVEMENT; MENTAL SIMULATION; IMAGERY; PERFORMANCE; VOLUNTARY; RESPONSES; STRENGTH; REFLEX; ARM;
D O I
10.1371/journal.pone.0006769
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
070301 [无机化学]; 070403 [天体物理学]; 070507 [自然资源与国土空间规划学]; 090105 [作物生产系统与生态工程];
摘要
Background: The autonomic nervous system (ANS) is activated in parallel with the motor system during cyclical and effortful imagined actions. However, it is not clear whether the ANS is activated during motor imagery of discrete movements and whether this activation is specific to the movement being imagined. Here, we explored these topics by studying the baroreflex control of the cardiovascular system. Methodology/Principal Findings: Arterial pressure and heart rate were recorded in ten subjects who executed or imagined trunk or leg movements against gravity. Trunk and leg movements result in different physiological reactions (orthostatic hypotension phenomenon) when they are executed. Interestingly, ANS activation significantly, but similarly, increased during imagined trunk and leg movements. Furthermore, we did not observe any physiological modulation during a control mental-arithmetic task or during motor imagery of effortless movements (horizontal wrist displacements). Conclusions/Significance: We concluded that ANS activation during motor imagery is general and not specific and physiologically prepares the organism for the upcoming effortful action.
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页数:8
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