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Crossmodal reorganisation in deafness: mechanisms for functional preservation and functional change

Cardin, V; Grin, K; Vinogradova, V; Manini, B; (2020) Crossmodal reorganisation in deafness: mechanisms for functional preservation and functional change. Neuroscience & Biobehavioral Reviews , 113 pp. 227-237. 10.1016/j.neubiorev.2020.03.019. Green open access

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Abstract

The study of deafness and blindness has contributed unique knowledge to our understanding of the brain, showing that environmental experience critically shapes neural structure and function. Nevertheless, the most prevalent theories of crossmodal plasticity propose opposed views about the function of reorganised cortical regions. Some theories agree on functional preservation, where in the absence of early sensory stimulation, cortical regions respond to a different sensory modality, but perform the same function. Others propose that the absence of sensory stimulation from birth results in cortical regions changing their "typical" sensory processing function to higher-order cognition. Both deafness and blindness have provided vast evidence in support of each of these theories. Here we use examples from the study of deafness to explore organisational mechanisms that would allow functional preservation and functional change to co-exist either in the same or adjacent regions. We provide a set of predictions and testable hypotheses that support each of these accounts, and lay out some steps that will move us towards more specific theories of cortical reorganisation.

Type: Article
Title: Crossmodal reorganisation in deafness: mechanisms for functional preservation and functional change
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.neubiorev.2020.03.019
Publisher version: https://doi.org/10.1016/j.neubiorev.2020.03.019
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: Deafness, Crossmodal Plasticity, Functional preservation, Functional change, Language, Working memory, Superior Temporal Cortex
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Experimental Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/10094043
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