fMRI of the Central Auditory System

Hall, Deborah A.

doi:10.1007/978-1-4939-1995-6_15

Cited by 1 publication

(1 citation statement)

References 54 publications

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“…2 in Gilley et al (2008)) speech. A few laboratories have been able to provide acoustic stimuli through tubephones and headphones customized to deliver sound levels up to 130 db with low distortion, flat frequency response, reliable phase and noise cancellation (Hall & Paltoglou, 2009). While there have been no reported studies of people with hearing loss with these customized devices, another group has examined the use of fMRI in sedated babies prior to cochlear implantation (DiFrancesco, Robertson, Karunanayaka, & Holland, 2013;Patel et al, 2007;Schmithorst et al, 2005).…”

Section: Combining Structural and Functional Imaging For Longitudinmentioning

confidence: 99%

Structural neuroimaging of the altered brain stemming from pediatric and adolescent hearing loss—Scientific and clinical challenges

Ratnanather

2019

WIREs Mechanisms of Disease

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There has been a spurt in structural neuroimaging studies of the effect of hearing loss on the brain. Specifically, magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) technologies provide an opportunity to quantify changes in gray and white matter structures at the macroscopic scale. To date, there have been 32 MRI and 23 DTI studies that have analyzed structural differences accruing from pre-or peri-lingual pediatric hearing loss with congenital or early onset etiology and postlingual hearing loss in pre-to-late adolescence. Additionally, there have been 15 prospective clinical structural neuroimaging studies of children and adolescents being evaluated for cochlear implants. The results of the 70 studies are summarized in two figures and three tables. Plastic changes in the brain are seen to be multifocal rather than diffuse, that is, differences are consistent across regions implicated in the hearing, speech and language networks regardless of modes of communication and amplification. Structures in that play an important role in cognition are affected to a lesser extent. A limitation of these studies is the emphasis on volumetric measures and on homogeneous groups of subjects with hearing loss.It is suggested that additional measures of morphometry and connectivity could contribute to a greater understanding of the effect of hearing loss on the brain. Then an interpretation of the observed macroscopic structural differences is given. This is followed by discussion of how structural imaging can be combined with functional imaging to provide biomarkers for longitudinal tracking of amplification.

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Section: Combining Structural and Functional Imaging For Longitudinmentioning

confidence: 99%

Structural neuroimaging of the altered brain stemming from pediatric and adolescent hearing loss—Scientific and clinical challenges

Ratnanather

2019

WIREs Mechanisms of Disease

View full text Add to dashboard Cite

show abstract

fMRI of the Central Auditory System

Cited by 1 publication

References 54 publications

Structural neuroimaging of the altered brain stemming from pediatric and adolescent hearing loss—Scientific and clinical challenges

Structural neuroimaging of the altered brain stemming from pediatric and adolescent hearing loss—Scientific and clinical challenges

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