EEG frequency tagging to explore the cortical activity related to the tactile exploration of natural textures
Identifieur interne : 000227 ( Main/Exploration ); précédent : 000226; suivant : 000228EEG frequency tagging to explore the cortical activity related to the tactile exploration of natural textures
Auteurs : Athanasia Moungou [Belgique] ; Jean-Louis Thonnard [Belgique] ; André Mouraux [Belgique]Source :
- Scientific Reports [ 2045-2322 ] ; 2016.
Abstract
When sliding our fingertip against a textured surface, complex vibrations are produced in the skin. It is increasingly recognised that the neural transduction and processing of these vibrations plays an important role in the dynamic tactile perception of textures. The aim of the present study was to develop a novel means to tag the cortical activity related to the processing of these vibrations, by periodically modulating the amplitude of texture exploration-induced vibrations such as to record a steady-state evoked potential (SS-EP). The EEG was recorded while the right index fingertip was scanned against four different textures using a constant exploration velocity. Amplitude modulation of the elicited vibrations was achieved by periodically modulating the force applied against the finger. Frequency analysis of the recorded EEG signals showed that modulation of the vibrations induced by the fingertip-texture interactions elicited an SS-EP at the frequency of modulation (3 Hz) as well as its second harmonic (6 Hz), maximal over parietal regions contralateral to the stimulated side. Textures generating stronger vibrations also generated SS-EPs of greater magnitude. Our results suggest that frequency tagging using SS-EPs can be used to isolate and explore the brain activity related to the tactile exploration of natural textures.
Url:
DOI: 10.1038/srep20738
PubMed: 26853820
PubMed Central: 4745109
Affiliations:
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natural textures</title><author><name sortKey="Moungou, Athanasia" sort="Moungou, Athanasia" uniqKey="Moungou A" first="Athanasia" last="Moungou">Athanasia Moungou</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Institute of Neuroscience (IoNS), Université catholique de Louvain (UCL)</institution>, Brussels,<country>Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Thonnard, Jean Louis" sort="Thonnard, Jean Louis" uniqKey="Thonnard J" first="Jean-Louis" last="Thonnard">Jean-Louis Thonnard</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Institute of Neuroscience (IoNS), Université catholique de Louvain (UCL)</institution>, Brussels,<country>Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="a2"><institution>Cliniques Universitaires Saint-Luc, Physical and Rehabilitation Department, Université catholique de Louvain</institution>, Brussels,<country>Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author><author><name sortKey="Mouraux, Andre" sort="Mouraux, Andre" uniqKey="Mouraux A" first="André" last="Mouraux">André Mouraux</name><affiliation wicri:level="1"><nlm:aff id="a1"><institution>Institute of Neuroscience (IoNS), Université catholique de Louvain (UCL)</institution>, Brussels,<country>Belgium</country></nlm:aff><country xml:lang="fr">Belgique</country><wicri:regionArea># see nlm:aff country strict</wicri:regionArea></affiliation></author></analytic><series><title level="j">Scientific Reports</title><idno type="eISSN">2045-2322</idno><imprint><date when="2016">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>When sliding our fingertip against a textured surface, complex vibrations are produced in the skin. It is increasingly recognised that the neural transduction and processing of these vibrations plays an important role in the dynamic tactile perception of textures. The aim of the present study was to develop a novel means to tag the cortical activity related to the processing of these vibrations, by periodically modulating the amplitude of texture exploration-induced vibrations such as to record a steady-state evoked potential (SS-EP). The EEG was recorded while the right index fingertip was scanned against four different textures using a constant exploration velocity. Amplitude modulation of the elicited vibrations was achieved by periodically modulating the force applied against the finger. Frequency analysis of the recorded EEG signals showed that modulation of the vibrations induced by the fingertip-texture interactions elicited an SS-EP at the frequency of modulation (3 Hz) as well as its second harmonic (6 Hz), maximal over parietal regions contralateral to the stimulated side. Textures generating stronger vibrations also generated SS-EPs of greater magnitude. Our results suggest that frequency tagging using SS-EPs can be used to isolate and explore the brain activity related to the tactile exploration of natural textures.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Hollins, M" uniqKey="Hollins M">M. Hollins</name></author><author><name sortKey="Risner, S R" uniqKey="Risner S">S. R. Risner</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Srinivasan, M A" uniqKey="Srinivasan M">M. A. Srinivasan</name></author><author><name sortKey="Whitehouse, J M" uniqKey="Whitehouse J">J. M. Whitehouse</name></author><author><name sortKey="Lamotte, R H" uniqKey="Lamotte R">R. H. LaMotte</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Morley, J W" uniqKey="Morley J">J. W. 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Muller</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list><country><li>Belgique</li></country></list><tree><country name="Belgique"><noRegion><name sortKey="Moungou, Athanasia" sort="Moungou, Athanasia" uniqKey="Moungou A" first="Athanasia" last="Moungou">Athanasia Moungou</name></noRegion><name sortKey="Mouraux, Andre" sort="Mouraux, Andre" uniqKey="Mouraux A" first="André" last="Mouraux">André Mouraux</name><name sortKey="Thonnard, Jean Louis" sort="Thonnard, Jean Louis" uniqKey="Thonnard J" first="Jean-Louis" last="Thonnard">Jean-Louis Thonnard</name><name sortKey="Thonnard, Jean Louis" sort="Thonnard, Jean Louis" uniqKey="Thonnard J" first="Jean-Louis" last="Thonnard">Jean-Louis Thonnard</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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