NDLI: Using electromagnetic reciprocity and magnetic resonance current density imaging to fit multi-electrode montage for non-invasive brain stimulation

Content Provider	IEEE Xplore Digital Library
Author	Dutta, A. Dutta, A.
Copyright Year	2013
Description	Author affiliation: Charite - Universitatsmed. Berlin, Berlin, Germany (Dutta, A.) \|\| Gnan Syst. LLP, Kolkata, India (Dutta, A.)
Abstract	Non-invasive brain stimulation (NIBS) involves passing low currents through the brain where detectable effects on neuronal activity and cognitive function have been found due to small but effective voltage gradients brought about in the brain tissue. Although NIBS is a promising tool for inducing alteration of cortical excitability but it presents challenge in terms of optimization of the electrode placement and stimulation parameters, especially in cases of heterogeneously damaged cortical structures where getting accurate conductivity values for computational head-modeling is challenging. Moreover, the target in the brain for NIBS to facilitate a specific residual function may be unknown where electroencephalogram (EEG) source localization for related event related potential may play an important role. Therefore, in this theoretical study, we explored the possibility of using a lead-field based formulation of the electromagnetic reciprocity theorem to reciprocally energize the EEG electrodes in order to target the neural source of event related potentials during a functional task. Moreover, a Magnetic Resonance Current Density Imaging based method is proposed to determine subject-specific lead-field where it is postulated that such NIBS-based artificial subthreshold ephaptic feedback may facilitate cortical neural events (e.g., event related synchronization/desynchronization), which remains to be validated in future via human studies.
Starting Page	447
Ending Page	451
File Size	628363
Page Count	5
File Format	PDF
ISBN	9781467319690
ISSN	19483554
DOI	10.1109/NER.2013.6695968
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electric potential Brain Lead Conductivity Electroencephalography Extracellular Equations
Content Type	Text
Resource Type	Article

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
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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