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Interhemispheric transfer of plasticity in the cerebral cortex

journal contribution
posted on 2023-05-18, 00:38 authored by Calford, MB, Tweedale, R
Each half of the body surface is represented topographically in the contralateral cerebral hemisphere. Physiological data are presented showing that homotopic regions of primary somatosensory cortex are linked such that plasticity induced in one hemisphere, in the form of receptive field expansion brought about by a small peripheral denervation, is immediately mirrored in the other hemisphere. Neurons which display the plasticity show no responsiveness to stimulation of the ipsilateral body surface. This suggests that the pathways and mechanisms mediating this transfer are specific to the role of maintaining balance, or integration, between corresponding cortical fields.

History

Publication title

Science

Volume

249

Issue

4970

Pagination

805-807

ISSN

0036-8075

Department/School

DVC - Academic

Publisher

Amer Assoc Advancement Science

Place of publication

1200 New York Ave, Nw, Washington, USA, Dc, 20005

Repository Status

  • Restricted

Socio-economic Objectives

Clinical health not elsewhere classified