1. Adaptive Strategies of Single-Sided Deaf Cochlear-Implant Users Revealed Through Resting State Activity: an Auditory PET Brain Imaging Study.
- Author
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Strelnikov, K., Karoui, C., Payoux, P., Salabert, A.S., James, C., Deguine, O., Barone, P., and Marx, M.
- Subjects
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COCHLEAR implants , *ACOUSTIC stimulation , *POSITRON emission tomography , *DEAFNESS , *HEARING disorders - Abstract
• Cochlear implantation is known to enhance compensatory brain plasticity. • We asked whether normal activity patterns are restored after asymmetric hearing loss. • A nearly normal pattern of brain activity during the auditory task was found. • Resting-state activity showed plasticity due to cross modal visuo-auditory processing. Brain plasticity refers to the brain's ability to reorganize its structure or function in response to experiences, learning, and environmental influences. This phenomenon is particularly significant in individuals with deafness, as the brain adapts to compensate for the lack of auditory stimulation. The aim of this study is to investigate whether cochlear implantation can restore a normal pattern of brain activation following auditory stimulation in cases of asymmetric hearing loss. We used a PET-scan technique to assess brain activity after cochlear implantation, specifically during an auditory voice/non-voice discrimination task. The results indicated a nearly normal pattern of brain activity during the auditory discrimination task, except for increased activation in areas related to attentional processes compared to controls. Additionally, brain activity at rest showed significant changes in implanted participants, including cross modal visuo-auditory processing. Therefore, cochlear implants can restore the brain's activation pattern through long-term adaptive adjustments in intrinsic brain activity. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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