Hypnotic suggestion alters the state of the motor cortex.
Neurosci Res. 2014 Jun 25. pii: S0168-0102(14)00103-5. doi:10.1016/j.neures.2014.05.009. Takarada Y(1), Nozaki D(2). Author information: (1)Faculty of Sports Sciences, Waseda University, Saitama 359-1192, Japan. Electronic address: takarada@waseda.jp. (2)Graduate School of Education, The University of Tokyo, Tokyo 113-0033, Japan.
Hypnosis often leads people to obey a suggestion of movement and to lose perceived voluntariness. This inexplicable phenomenon suggests that the state of the motor system may be altered by hypnosis; however, objective evidence for this is still lacking. Thus, we used transcranial magnetic stimulation of the primary motor cortex (M1) to investigate how hypnosis, and a concurrent suggestion that increased motivation for a force exertion task, influenced the state of the motor system. As a result, corticospinal excitability was enhanced, producing increased force exertion, only when the task-motivating suggestion was provided during hypnotic induction, showing that the hypnotic suggestion actually altered the state of M1 and the resultant behavior.
Copyright © 2014 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.
Praxis (Bern 1994). 2014 Jul 2;103(14):833-9. doi: 10.1024/1661-8157/a001719. Wehrli H. Author information: Klinik für Anästhesie, Intensiv-, Rettungs- und Schmerzmedizin, Kantonsspital St. Gallen.
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