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Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation
The aim of the present study was to test whether transcranial electrical stimulation can modulate illusory perception in the auditory domain. In two separate experiments we applied transcranial Direct Current Stimulation (anodal/cathodal tDCS, 2 mA; N = 60) and high-frequency transcranial Random Noi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5476865/ https://www.ncbi.nlm.nih.gov/pubmed/28676740 http://dx.doi.org/10.3389/fnins.2017.00351 |
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author | Prete, Giulia D'Anselmo, Anita Tommasi, Luca Brancucci, Alfredo |
author_facet | Prete, Giulia D'Anselmo, Anita Tommasi, Luca Brancucci, Alfredo |
author_sort | Prete, Giulia |
collection | PubMed |
description | The aim of the present study was to test whether transcranial electrical stimulation can modulate illusory perception in the auditory domain. In two separate experiments we applied transcranial Direct Current Stimulation (anodal/cathodal tDCS, 2 mA; N = 60) and high-frequency transcranial Random Noise Stimulation (hf-tRNS, 1.5 mA, offset 0; N = 45) on the temporal cortex during the presentation of the stimuli eliciting the Deutsch's illusion. The illusion arises when two sine tones spaced one octave apart (400 and 800 Hz) are presented dichotically in alternation, one in the left and the other in the right ear, so that when the right ear receives the high tone, the left ear receives the low tone, and vice versa. The majority of the population perceives one high-pitched tone in one ear alternating with one low-pitched tone in the other ear. The results revealed that neither anodal nor cathodal tDCS applied over the left/right temporal cortex modulated the perception of the illusion, whereas hf-tRNS applied bilaterally on the temporal cortex reduced the number of times the sequence of sounds is perceived as the Deutsch's illusion with respect to the sham control condition. The stimulation time before the beginning of the task (5 or 15 min) did not influence the perceptual outcome. In accordance with previous findings, we conclude that hf-tRNS can modulate auditory perception more efficiently than tDCS. |
format | Online Article Text |
id | pubmed-5476865 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-54768652017-07-04 Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation Prete, Giulia D'Anselmo, Anita Tommasi, Luca Brancucci, Alfredo Front Neurosci Neuroscience The aim of the present study was to test whether transcranial electrical stimulation can modulate illusory perception in the auditory domain. In two separate experiments we applied transcranial Direct Current Stimulation (anodal/cathodal tDCS, 2 mA; N = 60) and high-frequency transcranial Random Noise Stimulation (hf-tRNS, 1.5 mA, offset 0; N = 45) on the temporal cortex during the presentation of the stimuli eliciting the Deutsch's illusion. The illusion arises when two sine tones spaced one octave apart (400 and 800 Hz) are presented dichotically in alternation, one in the left and the other in the right ear, so that when the right ear receives the high tone, the left ear receives the low tone, and vice versa. The majority of the population perceives one high-pitched tone in one ear alternating with one low-pitched tone in the other ear. The results revealed that neither anodal nor cathodal tDCS applied over the left/right temporal cortex modulated the perception of the illusion, whereas hf-tRNS applied bilaterally on the temporal cortex reduced the number of times the sequence of sounds is perceived as the Deutsch's illusion with respect to the sham control condition. The stimulation time before the beginning of the task (5 or 15 min) did not influence the perceptual outcome. In accordance with previous findings, we conclude that hf-tRNS can modulate auditory perception more efficiently than tDCS. Frontiers Media S.A. 2017-06-20 /pmc/articles/PMC5476865/ /pubmed/28676740 http://dx.doi.org/10.3389/fnins.2017.00351 Text en Copyright © 2017 Prete, D'Anselmo, Tommasi and Brancucci. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Neuroscience Prete, Giulia D'Anselmo, Anita Tommasi, Luca Brancucci, Alfredo Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation |
title | Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation |
title_full | Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation |
title_fullStr | Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation |
title_full_unstemmed | Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation |
title_short | Modulation of Illusory Auditory Perception by Transcranial Electrical Stimulation |
title_sort | modulation of illusory auditory perception by transcranial electrical stimulation |
topic | Neuroscience |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5476865/ https://www.ncbi.nlm.nih.gov/pubmed/28676740 http://dx.doi.org/10.3389/fnins.2017.00351 |
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