NDLI: Transcranial magnetic stimulation induces current pulses in transcranial direct current stimulation electrodes

Content Provider	IEEE Xplore Digital Library
Author	Peterchev, A.V. Dhamne, S.C. Kothare, R. Rotenberg, A.
Copyright Year	2012
Description	Author affiliation: Dept. of Psychiatry & Behavioral Sci., Duke Univ., Durham, NC, USA (Peterchev, A.V.) \|\| Med. Sch., Dept. of Neurology, Harvard Univ., Boston, MA, USA (Dhamne, S.C.; Kothare, R.; Rotenberg, A.)
Abstract	Transcranial direct current stimulation (tDCS) is a noninvasive neuromodulation technique where weak direct current is administered through electrodes placed on the subject's head. Transcranial magnetic stimulation (TMS) is a noninvasive method for focal brain stimulation where small intracranial currents are induced by a pulsed magnetic field. TMS can be applied simultaneously with tDCS to probe brain excitability or to effect synergistic neuromodulation. Delivering TMS simultaneously with tDCS can induce electric current pulses in the tDCS electrodes even when the tDCS device is turned off or is set to 0 mA output, as long as the electrodes are connected to the tDCS current source. The output impedance of commercial tDCS devices is in the range of 2-5 kΩ which can allow substantial currents to be induced by TMS. In a rat TMS-tDCS setup, the induced currents are comparable to the tDCS current magnitude. To mitigate the induced currents, the area of the loop formed by the tDCS electrode leads should be minimized and the impedance of the tDCS circuit at TMS pulses frequencies (1-10 kHz) should be maximized.
Sponsorship	IEEE Eng. Medicine Biol. Soc.
Starting Page	811
Ending Page	814
File Size	1852916
Page Count	4
File Format	PDF
ISBN	9781424441198
ISSN	1557170X
e-ISBN	9781457717871
DOI	10.1109/EMBC.2012.6346055
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Impedance Coils Humans Current measurement Voltage measurement Magnetic heads
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in