期刊
REVUE NEUROLOGIQUE
卷 177, 期 9, 页码 1121-1132出版社
MASSON EDITEUR
DOI: 10.1016/j.neurol.2021.09.004
关键词
Brain plasticity; Deafness; Hearing loss; Cochlear implantation; Cross-modal; Intra-modal
资金
- Agir pour l'audition [APA-RD2015-6B]
- ANR AgeHear [ANR-20-CE28-0016-01]
Permanently changed sensory stimulation can alter functional connectivity patterns in both healthy and pathological brains. These adaptive modifications, known as compensation in pathology, can lead to compensatory plasticity. Research on brain plasticity in hearing disorders is crucial for understanding the implications on rehabilitation and patient outcomes.
Permanently changed sensory stimulation can modify functional connectivity patterns in the healthy brain and in pathology. In the pathology case, these adaptive modifications of the brain are referred to as compensation, and the subsequent configurations of functional connectivity are called compensatory plasticity. The variability and extent of auditory deficits due to the impairments in the hearing system determine the related brain reorganization and rehabilitation. In this review, we consider cross-modal and intra-modal brain plasticity related to bilateral and unilateral hearing loss and their restoration using cochlear implantation. Cross-modal brain plasticity may have both beneficial and detrimental effects on hearing disorders. It has a beneficial effect when it serves to improve a patient's adaptation to the visuo-auditory environment. However, the occupation of the auditory cortex by visual functions may be a negative factor for the restoration of hearing with cochlear implants. In what concerns intra-modal plasticity, the loss of interhemispheric asymmetry in asymmetric hearing loss is deleterious for the auditory spatial localization. Research on brain plasticity in hearing disorders can advance our understanding of brain plasticity and improve the rehabilitation of the patients using prognostic, evidence-based approaches from cognitive neuroscience combined with post-rehabilitation objective biomarkers of this plasticity utilizing neuroimaging. (C) 2021 Published by Elsevier Masson SAS.
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