Neural Reorganization Following Sensory Loss: The Opportunity Of Change
Identifieur interne : 001335 ( Ncbi/Merge ); précédent : 001334; suivant : 001336Neural Reorganization Following Sensory Loss: The Opportunity Of Change
Auteurs : Lotfi B. Merabet ; Alvaro Pascual-LeoneSource :
- Nature reviews. Neuroscience [ 1471-003X ] ; 2009.
Abstract
Growing evidence suggests that sensory deprivation is associated with dramatic crossmodal neuroplastic changes in the brain. In the case of visual and auditory deprivation, there is functional recruitment of brain areas normally associated with the sense that is lost by those sensory modalities that are spared. Furthermore, these changes seem to underlie adaptive and compensatory behaviours observed in both blind and deaf individuals. Although there are differences between these two populations due the very nature of the deprived sensory modality, there seem to be common principles regarding how the brain copes with sensory loss and the factors that influence how neuroplastic changes come about. Here, we discuss crossmodal neuroplasticity with regards to behavioural adaptation following sensory deprivation and highlight the possibility of maladaptive consequences within the context of rehabilitation.
Url:
DOI: 10.1038/nrn2758
PubMed: 19935836
PubMed Central: 3898172
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PMC:3898172Le document en format XML
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<front><div type="abstract" xml:lang="en"><p id="P1">Growing evidence suggests that sensory deprivation is associated with dramatic crossmodal neuroplastic changes in the brain. In the case of visual and auditory deprivation, there is functional recruitment of brain areas normally associated with the sense that is lost by those sensory modalities that are spared. Furthermore, these changes seem to underlie adaptive and compensatory behaviours observed in both blind and deaf individuals. Although there are differences between these two populations due the very nature of the deprived sensory modality, there seem to be common principles regarding how the brain copes with sensory loss and the factors that influence how neuroplastic changes come about. Here, we discuss crossmodal neuroplasticity with regards to behavioural adaptation following sensory deprivation and highlight the possibility of maladaptive consequences within the context of rehabilitation.</p>
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<aff id="A1">Berenson-Allen Center for Noninvasive Brain Stimulation, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School. Boston, MA, USA</aff>
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<author-notes><corresp id="cor1"><bold>Corresponding Author:</bold>
Lotfi B. Merabet, OD, PhD, Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, KS-158, Boston, MA, 02215, <email>lmerabet@bidmc.harvard.edu</email>
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<abstract><p id="P1">Growing evidence suggests that sensory deprivation is associated with dramatic crossmodal neuroplastic changes in the brain. In the case of visual and auditory deprivation, there is functional recruitment of brain areas normally associated with the sense that is lost by those sensory modalities that are spared. Furthermore, these changes seem to underlie adaptive and compensatory behaviours observed in both blind and deaf individuals. Although there are differences between these two populations due the very nature of the deprived sensory modality, there seem to be common principles regarding how the brain copes with sensory loss and the factors that influence how neuroplastic changes come about. Here, we discuss crossmodal neuroplasticity with regards to behavioural adaptation following sensory deprivation and highlight the possibility of maladaptive consequences within the context of rehabilitation.</p>
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