The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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Cortical Activation by Transcranial Direct Current Stimulation and Functional Electrical Stimulation in Normal Subjects: 2 Case Studies

정상 성인에서 경두개 직류 전류자극과 기능적 전기자극에 의한 대뇌피질의 활성화: 사례연구

  • Kwon, Yong-Hyun (Department of Physical Therapy, Yeungnam College of Science & Technology) ;
  • Kwon, Jung-Won (Department of Rehabilitation Science, Graduate School, Daegu University) ;
  • Park, Sang-Young (Department of Rehabilitation Science, Graduate School, Daegu University) ;
  • Jang, Sung-Ho (Department of Physical Medicine and Rehabilitation, Yeungnam University)
  • 권용현 (영남이공대학 물리치료학과) ;
  • 권중원 (대구대학교 대학원 재활과학과) ;
  • 박상영 (대구대학교 대학원 재활과학과) ;
  • 장성호 (영남대학교 의과대학 재활의학교실)
  • Received : 2011.11.12
  • Accepted : 2011.02.11
  • Published : 2011.02.25
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Abstract

Purpose: Recently, many studies have demonstrated that application of external stimulation can modulate cortical excitability of the human brain. We attempted to observe cortical excitability using functional magnetic resonance imaging (fMRI) during the application of transcranial direct current stimulation (tDCS) or functional electrical stimulation (FES). Methods: We recruited two healthy subjects without a history of neurological or psychiatric problems. fMRI scanning was done during? each constant anodal tDCS and FES session, and each session was repeated three times. The tDCS session consisted of three successive phases (resting phase: 60sec dummy cycle: 10sec tDCS phase: 60sec). The FES session involved stimulation of wrist extensor muscles over two successive phase (resting phase: 15sec FES phase: 15sec). Results: The average map of the tDCS and FES analyses showed that the primary sensory-motor cortex area was activated in all subjects. Conclusion: Our findings show that cortical activation can be induced by constant anodal tDCS and FES. They suggest that the above stimuli have the potential for facilitating brain plasticity and modulating neural excitability if applied as specific therapeutic interventions for brain injured patients.

Keywords

References

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