Document Detail


Comparing cutaneous perception induced by electrical stimulation using rectangular and round shaped electrodes.
MedLine Citation:
PMID:  20980196     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: We have investigated the cutaneous perception differences for anodal and cathodal transcranial direct current stimulation (tDCS) and transcranial random noise stimulation (tRNS) between two electrode configurations: a standard, rectangle-shaped, and a circle-shaped, round geometry with the same surface area, and thus, same nominal current distribution. We have aimed to find whether a smaller perimeter length and the absence of corners in the case of the round configuration would lead to altered skin perception characteristics when compared to the rectangular geometry.
METHODS: Twelve subjects were tested for tDCS and tRNS skin perception characteristics in the intensity range of 200-2000μA using round and rectangular electrode configurations.
RESULTS: We have not found any substantial differences between detection thresholds, detection rates, false positive rates or consistent alterations in the sites of perceived stimulation.
CONCLUSION: We conclude that there is no difference between the round and the rectangular electrode configurations regarding their blinding potentials.
SIGNIFICANCE: The results of this investigation indicate that the altering of the electrode geometry to a round configuration is unwarranted for better blinding purposes in future studies using tDCS and tRNS.
Authors:
Géza Gergely Ambrus; Andrea Antal; Walter Paulus
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Publication Detail:
Type:  Journal Article     Date:  2010-10-25
Journal Detail:
Title:  Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology     Volume:  122     ISSN:  1872-8952     ISO Abbreviation:  Clin Neurophysiol     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-03-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883319     Medline TA:  Clin Neurophysiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  803-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Clinical Neurophysiology, Georg-August University of Göttingen, 37075 Göttingen, Germany.
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