How does visual language affect crossmodal plasticity and cochlear implant success?

Lyness, C R, Woll, B, Campbell, R and Cardin, V (2013) How does visual language affect crossmodal plasticity and cochlear implant success? Neuroscience and Biobehavioral Reviews, 37 (10 Pt 2). pp. 2621-2630. ISSN 0149-7634

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Cochlear implants (CI) are the most successful intervention for ameliorating hearing loss in severely or profoundly deaf children. Despite this, educational performance in children with CI continues to lag behind their hearing peers. From animal models and human neuroimaging studies it has been proposed the integrative functions of auditory cortex are compromised by crossmodal plasticity. This has been argued to result partly from the use of a visual language. Here we argue that 'cochlear implant sensitive periods' comprise both auditory and language sensitive periods, and thus cannot be fully described with animal models. Despite prevailing assumptions, there is no evidence to link the use of a visual language to poorer CI outcome. Crossmodal reorganisation of auditory cortex occurs regardless of compensatory strategies, such as sign language, used by the deaf person. In contrast, language deprivation during early sensitive periods has been repeatedly linked to poor language outcomes. Language sensitive periods have largely been ignored when considering variation in CI outcome, leading to ill-founded recommendations concerning visual language in CI habilitation.

Item Type: Article
Additional Information: © 2013 Elsevier Ltd. Open access under CC BY license.
Uncontrolled Keywords: cochlear implant,deafness,functional decoupling,crossmodal reorganisation,insecure language acquisition
Faculty \ School: Faculty of Social Sciences > School of Psychology
Depositing User: Pure Connector
Date Deposited: 15 Nov 2016 14:00
Last Modified: 21 Oct 2022 07:33
DOI: 10.1016/j.neubiorev.2013.08.011

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