Anodal transcranial direct current stimulation over the lower limb motor cortex increases the cortical excitability with extracephalic reference electrodes

Tsuyoshi Tatemoto; Tomofumi Yamaguchi; Yohei Otaka; Kunitsugu Kondo; Satoshi Tanaka

doi:10.1007/978-3-642-34546-3_135

Anodal transcranial direct current stimulation over the lower limb motor cortex increases the cortical excitability with extracephalic reference electrodes

Tsuyoshi Tatemoto, Tomofumi Yamaguchi, Yohei Otaka, Kunitsugu Kondo, Satoshi Tanaka

Department of Rehabilitation Medicine I

Research output: Chapter in Book/Report/Conference proceeding › Chapter

5 Citations (Scopus)

Original language	English
Title of host publication	Biosystems and Biorobotics
Publisher	Springer International Publishing
Pages	829-834
Number of pages	6
DOIs	https://doi.org/10.1007/978-3-642-34546-3_135
Publication status	Published - 01-01-2013

Publication series

Name	Biosystems and Biorobotics
Volume	1
ISSN (Print)	2195-3562
ISSN (Electronic)	2195-3570

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All Science Journal Classification (ASJC) codes

Biomedical Engineering
Mechanical Engineering
Artificial Intelligence

Cite this

Tatemoto, T., Yamaguchi, T., Otaka, Y., Kondo, K., & Tanaka, S. (2013). Anodal transcranial direct current stimulation over the lower limb motor cortex increases the cortical excitability with extracephalic reference electrodes. In Biosystems and Biorobotics (pp. 829-834). (Biosystems and Biorobotics; Vol. 1). Springer International Publishing. https://doi.org/10.1007/978-3-642-34546-3_135

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abstract = "The aim of the present study was to investigate whether anodal transcranial direct-current stimulation (tDCS) of lower-limb primary motor cortex (M1) could increase cortical excitability when reference electrodes were placed at extracephalic positions. Ten healthy volunteers participated in this study. Anodal electrodes were placed over the left lower-limb M1, whereas reference electrodes were placed on the contralateral forehead (cephalic condition) or contralateral upper arm (extracephalic condition). Motor evoked potentials (MEPs) were recorded as a measure of cortical excitability before and after tDCS (2 mA, 10 minutes). Compared with a sham condition, MEPs significantly increased for both cephalic and extracephalic conditions, and this increase was maintained for approximately 60 minutes after stimulation. No side effects were reported. We conclude that tDCS over lower-limb M1 in conjunction with extracephalic reference electrodes can increase cortical excitability without any side effects.",

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Tatemoto, T, Yamaguchi, T, Otaka, Y, Kondo, K & Tanaka, S 2013, Anodal transcranial direct current stimulation over the lower limb motor cortex increases the cortical excitability with extracephalic reference electrodes. in Biosystems and Biorobotics. Biosystems and Biorobotics, vol. 1, Springer International Publishing, pp. 829-834. https://doi.org/10.1007/978-3-642-34546-3_135

Anodal transcranial direct current stimulation over the lower limb motor cortex increases the cortical excitability with extracephalic reference electrodes. / Tatemoto, Tsuyoshi; Yamaguchi, Tomofumi; Otaka, Yohei; Kondo, Kunitsugu; Tanaka, Satoshi.

Biosystems and Biorobotics. Springer International Publishing, 2013. p. 829-834 (Biosystems and Biorobotics; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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AB - The aim of the present study was to investigate whether anodal transcranial direct-current stimulation (tDCS) of lower-limb primary motor cortex (M1) could increase cortical excitability when reference electrodes were placed at extracephalic positions. Ten healthy volunteers participated in this study. Anodal electrodes were placed over the left lower-limb M1, whereas reference electrodes were placed on the contralateral forehead (cephalic condition) or contralateral upper arm (extracephalic condition). Motor evoked potentials (MEPs) were recorded as a measure of cortical excitability before and after tDCS (2 mA, 10 minutes). Compared with a sham condition, MEPs significantly increased for both cephalic and extracephalic conditions, and this increase was maintained for approximately 60 minutes after stimulation. No side effects were reported. We conclude that tDCS over lower-limb M1 in conjunction with extracephalic reference electrodes can increase cortical excitability without any side effects.

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Access to Document

10.1007/978-3-642-34546-3_135