The influence of vision on tactile Hebbian learning

Abstract NMDA-dependent Hebbian learning drives neuronal plasticity in different cortical areas, and across species. In the primary somatosensory cortex (S-I), Hebbian learning is induced via the persistent low-rate afferent stimulation of a small area of skin. In particular, plasticity is induced i...

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Autores principales:	Esther Kuehn, Juliane Doehler, Burkhard Pleger
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ffb296c1d6794e08974176961ab04904
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spelling	oai:doaj.org-article:ffb296c1d6794e08974176961ab049042021-12-02T12:30:13ZThe influence of vision on tactile Hebbian learning10.1038/s41598-017-09181-62045-2322https://doaj.org/article/ffb296c1d6794e08974176961ab049042017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09181-6https://doaj.org/toc/2045-2322Abstract NMDA-dependent Hebbian learning drives neuronal plasticity in different cortical areas, and across species. In the primary somatosensory cortex (S-I), Hebbian learning is induced via the persistent low-rate afferent stimulation of a small area of skin. In particular, plasticity is induced in superficial cortical layers II/III of the S-I cortex that represents the stimulated area of skin. Here, we used the model system of NMDA-dependent Hebbian learning to investigate the influence of non-afferent (visual) input on Hebbian plasticity in S-I. We induced Hebbian learning in 48 participants by applying 3 hours of tactile coactivation to the right index fingertip via small loudspeaker membranes. During coactivation, different groups viewed either touches to individual fingers, which is known to activate S-I receptive fields, touches to an object, which should not activate S-I receptive fields, or no touch at all. Our results show that coactivation significantly lowers tactile spatial discrimination thresholds at the stimulated finger post- versus pre-training across groups. However, we did not find evidence for a significant modulatory effect of visual condition on tactile spatial discrimination performance. This suggests that non-afferent (visual) signals do not interact with Hebbian learning in superficial cortical layers of S-I, but may integrate into deeper cortical layers instead.Esther KuehnJuliane DoehlerBurkhard PlegerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Esther Kuehn Juliane Doehler Burkhard Pleger The influence of vision on tactile Hebbian learning
description	Abstract NMDA-dependent Hebbian learning drives neuronal plasticity in different cortical areas, and across species. In the primary somatosensory cortex (S-I), Hebbian learning is induced via the persistent low-rate afferent stimulation of a small area of skin. In particular, plasticity is induced in superficial cortical layers II/III of the S-I cortex that represents the stimulated area of skin. Here, we used the model system of NMDA-dependent Hebbian learning to investigate the influence of non-afferent (visual) input on Hebbian plasticity in S-I. We induced Hebbian learning in 48 participants by applying 3 hours of tactile coactivation to the right index fingertip via small loudspeaker membranes. During coactivation, different groups viewed either touches to individual fingers, which is known to activate S-I receptive fields, touches to an object, which should not activate S-I receptive fields, or no touch at all. Our results show that coactivation significantly lowers tactile spatial discrimination thresholds at the stimulated finger post- versus pre-training across groups. However, we did not find evidence for a significant modulatory effect of visual condition on tactile spatial discrimination performance. This suggests that non-afferent (visual) signals do not interact with Hebbian learning in superficial cortical layers of S-I, but may integrate into deeper cortical layers instead.
format	article
author	Esther Kuehn Juliane Doehler Burkhard Pleger
author_facet	Esther Kuehn Juliane Doehler Burkhard Pleger
author_sort	Esther Kuehn
title	The influence of vision on tactile Hebbian learning
title_short	The influence of vision on tactile Hebbian learning
title_full	The influence of vision on tactile Hebbian learning
title_fullStr	The influence of vision on tactile Hebbian learning
title_full_unstemmed	The influence of vision on tactile Hebbian learning
title_sort	influence of vision on tactile hebbian learning
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ffb296c1d6794e08974176961ab04904
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The influence of vision on tactile Hebbian learning

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