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Motor and Visual Plasticity interact in Adult Humans

Izel D. Sarı, View ORCID ProfileClaudia Lunghi
doi: https://doi.org/10.1101/2022.05.03.490377
Izel D. Sarı
1Laboratoire des systèmes perceptifs, Département d’études cognitives, École normale supérieure, PSL University, CNRS, 75005 Paris, France
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Claudia Lunghi
1Laboratoire des systèmes perceptifs, Département d’études cognitives, École normale supérieure, PSL University, CNRS, 75005 Paris, France
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  • ORCID record for Claudia Lunghi
  • For correspondence: claudia.lunghi@ens.psl.eu
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Abstract

Neuroplasticity is maximal during development and declines in adulthood, especially for sensory cortices. On the contrary, the motor cortex retains plasticity throughout the lifespan. This difference has led to a modular view of plasticity in which different brain regions have their own plasticity mechanisms that do not depend or translate on others. Recent evidence indicates that visual and motor plasticity share common neural mechanisms (e.g. GABAergic inhibition), indicating a possible link between these different forms of plasticity, however the interaction between visual and motor plasticity has never been tested directly. Here we show that when visual and motor plasticity are elicited at the same time in adult humans, visual plasticity is impaired, while motor plasticity is spared. This unilateral interaction between visual and motor plasticity demonstrates a clear link between these two forms of plasticity. We conclude that local neuroplasticity in separate systems might be regulated globally, to preserve overall homeostasis in the brain.

Competing Interest Statement

The authors have declared no competing interest.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted May 04, 2022.
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Motor and Visual Plasticity interact in Adult Humans
Izel D. Sarı, Claudia Lunghi
bioRxiv 2022.05.03.490377; doi: https://doi.org/10.1101/2022.05.03.490377
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Motor and Visual Plasticity interact in Adult Humans
Izel D. Sarı, Claudia Lunghi
bioRxiv 2022.05.03.490377; doi: https://doi.org/10.1101/2022.05.03.490377

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