Neural correlates of perceptual texture change during active touch
IntroductionTexture changes occur frequently during real-world haptic explorations, but the neural processes that encode perceptual texture change remain relatively unknown. The present study examines cortical oscillatory changes during transitions between different surface textures during active to...
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| Language: | English |
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Frontiers Media S.A.
2023-06-01
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| Series: | Frontiers in Neuroscience |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnins.2023.1197113/full |
| _version_ | 1797813670817824768 |
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| author | Jessica Henderson Tyler Mari Andrew Hopkinson Andrew Hopkinson Danielle Hewitt Alice Newton-Fenner Alice Newton-Fenner Timo Giesbrecht Alan Marshall Andrej Stancak Andrej Stancak Nicholas Fallon |
| author_facet | Jessica Henderson Tyler Mari Andrew Hopkinson Andrew Hopkinson Danielle Hewitt Alice Newton-Fenner Alice Newton-Fenner Timo Giesbrecht Alan Marshall Andrej Stancak Andrej Stancak Nicholas Fallon |
| author_sort | Jessica Henderson |
| collection | DOAJ |
| description | IntroductionTexture changes occur frequently during real-world haptic explorations, but the neural processes that encode perceptual texture change remain relatively unknown. The present study examines cortical oscillatory changes during transitions between different surface textures during active touch.MethodsParticipants explored two differing textures whilst oscillatory brain activity and finger position data were recorded using 129-channel electroencephalography and a purpose-built touch sensor. These data streams were fused to calculate epochs relative to the time when the moving finger crossed the textural boundary on a 3D-printed sample. Changes in oscillatory band power in alpha (8–12 Hz), beta (16–24 Hz) and theta (4–7 Hz) frequency bands were investigated.ResultsAlpha-band power reduced over bilateral sensorimotor areas during the transition period relative to ongoing texture processing, indicating that alpha-band activity is modulated by perceptual texture change during complex ongoing tactile exploration. Further, reduced beta-band power was observed in central sensorimotor areas when participants transitioned from rough to smooth relative to transitioning from smooth to rough textures, supporting previous research that beta-band activity is mediated by high-frequency vibrotactile cues.DiscussionThe present findings suggest that perceptual texture change is encoded in the brain in alpha-band oscillatory activity whilst completing continuous naturalistic movements across textures. |
| first_indexed | 2024-03-13T07:56:15Z |
| format | Article |
| id | doaj.art-8a3fe287907b4d33a4be5cc889c14014 |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-03-13T07:56:15Z |
| publishDate | 2023-06-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Neuroscience |
| spelling | doaj.art-8a3fe287907b4d33a4be5cc889c140142023-06-02T04:58:43ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2023-06-011710.3389/fnins.2023.11971131197113Neural correlates of perceptual texture change during active touchJessica Henderson0Tyler Mari1Andrew Hopkinson2Andrew Hopkinson3Danielle Hewitt4Alice Newton-Fenner5Alice Newton-Fenner6Timo Giesbrecht7Alan Marshall8Andrej Stancak9Andrej Stancak10Nicholas Fallon11School of Psychology, University of Liverpool, Liverpool, United KingdomSchool of Psychology, University of Liverpool, Liverpool, United KingdomSchool of Psychology, University of Liverpool, Liverpool, United KingdomHopkinson Research, Wirral, United KingdomSchool of Psychology, University of Liverpool, Liverpool, United KingdomSchool of Psychology, University of Liverpool, Liverpool, United KingdomInstitute of Risk and Uncertainty, University of Liverpool, Liverpool, United KingdomUnilever, Research and Development, Port Sunlight, United KingdomDepartment of Electrical Engineering and Electronics, University of Liverpool, Liverpool, United KingdomSchool of Psychology, University of Liverpool, Liverpool, United KingdomInstitute of Risk and Uncertainty, University of Liverpool, Liverpool, United KingdomSchool of Psychology, University of Liverpool, Liverpool, United KingdomIntroductionTexture changes occur frequently during real-world haptic explorations, but the neural processes that encode perceptual texture change remain relatively unknown. The present study examines cortical oscillatory changes during transitions between different surface textures during active touch.MethodsParticipants explored two differing textures whilst oscillatory brain activity and finger position data were recorded using 129-channel electroencephalography and a purpose-built touch sensor. These data streams were fused to calculate epochs relative to the time when the moving finger crossed the textural boundary on a 3D-printed sample. Changes in oscillatory band power in alpha (8–12 Hz), beta (16–24 Hz) and theta (4–7 Hz) frequency bands were investigated.ResultsAlpha-band power reduced over bilateral sensorimotor areas during the transition period relative to ongoing texture processing, indicating that alpha-band activity is modulated by perceptual texture change during complex ongoing tactile exploration. Further, reduced beta-band power was observed in central sensorimotor areas when participants transitioned from rough to smooth relative to transitioning from smooth to rough textures, supporting previous research that beta-band activity is mediated by high-frequency vibrotactile cues.DiscussionThe present findings suggest that perceptual texture change is encoded in the brain in alpha-band oscillatory activity whilst completing continuous naturalistic movements across textures.https://www.frontiersin.org/articles/10.3389/fnins.2023.1197113/fullelectroencephalographytexture perceptionactive touchtime-frequency analysischange detection |
| spellingShingle | Jessica Henderson Tyler Mari Andrew Hopkinson Andrew Hopkinson Danielle Hewitt Alice Newton-Fenner Alice Newton-Fenner Timo Giesbrecht Alan Marshall Andrej Stancak Andrej Stancak Nicholas Fallon Neural correlates of perceptual texture change during active touch Frontiers in Neuroscience electroencephalography texture perception active touch time-frequency analysis change detection |
| title | Neural correlates of perceptual texture change during active touch |
| title_full | Neural correlates of perceptual texture change during active touch |
| title_fullStr | Neural correlates of perceptual texture change during active touch |
| title_full_unstemmed | Neural correlates of perceptual texture change during active touch |
| title_short | Neural correlates of perceptual texture change during active touch |
| title_sort | neural correlates of perceptual texture change during active touch |
| topic | electroencephalography texture perception active touch time-frequency analysis change detection |
| url | https://www.frontiersin.org/articles/10.3389/fnins.2023.1197113/full |
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