Crossmodal reorganisation in deafness: Mechanisms for functional preservation and functional change
| Autor: | Valeria Vinogradova, Velia Cardin, Barbara Manini, Konstantin Grin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Sensory processing
Cognitive Neuroscience media_common.quotation_subject medicine.medical_treatment Sensation Deafness 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Stimulus modality medicine Humans 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Set (psychology) Function (engineering) media_common Brain Mapping Neuronal Plasticity Sensory stimulation therapy Crossmodal Working memory 05 social sciences Brain Cognition Neuropsychology and Physiological Psychology Psychology Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Neuroscience & Biobehavioral Reviews. 113:227-237 |
| ISSN: | 0149-7634 |
| DOI: | 10.1016/j.neubiorev.2020.03.019 |
| Popis: | 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 opposing 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 could move us towards more specific theories of cortical reorganisation. |
| Databáze: | OpenAIRE |
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