PET-imaging of brain plasticity after cochlear implantation

In this article, we review the PET neuroimaging literature, which indicates peculiarities of brain networks involved in speech restoration after cochlear implantation. We consider data on implanted patients during stimulation as well as during resting state, which indicates basic long-term reorganis...

Full description

Saved in:
Bibliographic Details
Published in:Hearing research 2015-04, Vol.322, p.180-187
Main Authors: Strelnikov, K., Marx, M., Lagleyre, S., Fraysse, B., Deguine, O., Barone, P.
Format: Article
Language:English
Subjects:
Acoustic Stimulation
Auditory Pathways - diagnostic imaging
Auditory Pathways - physiopathology
Brain - diagnostic imaging
Brain - physiopathology
Brain Mapping - methods
Cochlear Implantation - instrumentation
Cochlear Implants
Cognitive science
Comprehension
Cues
Electric Stimulation
Humans
Neuronal Plasticity
Neuroscience
Persons With Hearing Impairments - psychology
Persons With Hearing Impairments - rehabilitation
Positron-Emission Tomography
Recovery of Function
Speech Intelligibility
Speech Perception
Visual Pathways - diagnostic imaging
Visual Pathways - physiopathology
Visual Perception
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this article, we review the PET neuroimaging literature, which indicates peculiarities of brain networks involved in speech restoration after cochlear implantation. We consider data on implanted patients during stimulation as well as during resting state, which indicates basic long-term reorganisation of brain functional architecture. On the basis of our analysis of neuroimaging literature and considering our own studies, we indicate that auditory recovery in deaf patients after cochlear implantation partly relies on visual cues. The brain develops mechanisms of audio-visual integration as a strategy to achieve high levels of speech recognition. It turns out that this neuroimaging evidence is in line with behavioural findings of better audiovisual integration in these patients. Thus, strong visually and audio-visually based rehabilitation during the first months after cochlear implantation would significantly improve and fasten the functional recovery of speech intelligibility and other auditory functions in these patients. We provide perspectives for further neuroimaging studies in cochlear implanted patients, which would help understand brain organisation to restore auditory cognitive processing in the implanted patients and would potentially suggest novel approaches for their rehabilitation. This article is part of a Special Issue entitled . •We review the PET data of brain activity post-implantation.•Brain plasticity is important for auditory recovery after cochlear implantation.•The degraded auditory signal requires the support of the visual channel.•Audio-visual brain plasticity constitutes a key element of brain reorganisation.
ISSN:0378-5955
1878-5891
DOI:10.1016/j.heares.2014.10.001