Comparing cutaneous perception induced by electrical stimulation using rectangular and round shaped electrodes
Authors: Ambrus, G.G., Antal, A. and Paulus, W.
Journal: Clinical Neurophysiology
Volume: 122
Issue: 4
Pages: 803-807
ISSN: 1388-2457
DOI: 10.1016/j.clinph.2010.08.023
Abstract: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 200-2000 μA 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. © 2010 International Federation of Clinical Neurophysiology.
Source: Scopus
Comparing cutaneous perception induced by electrical stimulation using rectangular and round shaped electrodes.
Authors: Ambrus, G.G., Antal, A. and Paulus, W.
Journal: Clin Neurophysiol
Volume: 122
Issue: 4
Pages: 803-807
eISSN: 1872-8952
DOI: 10.1016/j.clinph.2010.08.023
Abstract: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 200-2000 μA 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.
Source: PubMed
Comparing cutaneous perception induced by electrical stimulation using rectangular and round shaped electrodes
Authors: Ambrus, G.G., Antal, A. and Paulus, W.
Journal: CLINICAL NEUROPHYSIOLOGY
Volume: 122
Issue: 4
Pages: 803-807
eISSN: 1872-8952
ISSN: 1388-2457
DOI: 10.1016/j.clinph.2010.08.023
Source: Web of Science (Lite)
Comparing cutaneous perception induced by electrical stimulation using rectangular and round shaped electrodes.
Authors: Ambrus, G.G., Antal, A. and Paulus, W.
Journal: Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
Volume: 122
Issue: 4
Pages: 803-807
eISSN: 1872-8952
ISSN: 1388-2457
DOI: 10.1016/j.clinph.2010.08.023
Abstract: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 200-2000 μA 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.Source: Europe PubMed Central