Electrophysiological Responses in Individuals with Auditory Neuropathy

2002 ◽  
Vol 23 (3) ◽  
pp. 183-192 ◽  
Author(s):  
Abreena I Tlumak
Keyword(s):  
Auditory Neuropathy ◽  
Electrophysiological Responses

The Genetics of Auditory Neuropathy

2002 ◽  
Vol 12 (2) ◽  
pp. 14-18
Author(s):  
Philip M. Kelley ◽  
Renee Rogers ◽  
Edward Cohn
Keyword(s):  
Auditory Neuropathy

The Involuntary Capture of Attention by Sound

2010 ◽  
Vol 57 (1) ◽  
pp. 68-76 ◽  
Author(s):  
Fabrice B. R. Parmentier ◽  
Pilar Andrés
Keyword(s):  
Older Adults ◽  
Mismatch Negativity ◽  
Visual Task ◽  
The Novel ◽  
Auditory Oddball ◽  
Current Trial ◽  
Electrophysiological Responses ◽  
Electrophysiological Studies ◽  
The Cross ◽  
Task Sets

The presentation of auditory oddball stimuli (novels) among otherwise repeated sounds (standards) triggers a well-identified chain of electrophysiological responses: The detection of acoustic change (mismatch negativity), the involuntary orientation of attention to (P3a) and its reorientation from the novel. Behaviorally, novels reduce performance in an unrelated visual task (novelty distraction). Past studies of the cross-modal capture of attention by acoustic novelty have typically discarded from their analysis the data from the standard trials immediately following a novel, despite some evidence in mono-modal oddball tasks of distraction extending beyond the presentation of deviants/novels (postnovelty distraction). The present study measured novelty and postnovelty distraction and examined the hypothesis that both types of distraction may be underpinned by common frontally-related processes by comparing young and older adults. Our data establish that novels delayed responses not only on the current trial and but also on the subsequent standard trial. Both of these effects increased with age. We argue that both types of distraction relate to the reconfiguration of task-sets and discuss this contention in relation to recent electrophysiological studies.

scholarly journals Speech Processing Disorder in Neural Hearing Loss

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Joseph P. Pillion
Keyword(s):  
Speech Processing ◽  
Auditory Processing ◽  
Neurological Disorders ◽  
Auditory Neuropathy ◽  
Central Auditory Processing ◽  
Temporal Lobes ◽  
Electrophysiological Tests ◽  
Bilateral Lesions ◽  
Clinical Conditions ◽  
Inferior Colliculi

Deficits in central auditory processing may occur in a variety of clinical conditions including traumatic brain injury, neurodegenerative disease, auditory neuropathy/dyssynchrony syndrome, neurological disorders associated with aging, and aphasia. Deficits in central auditory processing of a more subtle nature have also been studied extensively in neurodevelopmental disorders in children with learning disabilities, ADD, and developmental language disorders. Illustrative cases are reviewed demonstrating the use of an audiological test battery in patients with auditory neuropathy/dyssynchrony syndrome, bilateral lesions to the inferior colliculi, and bilateral lesions to the temporal lobes. Electrophysiological tests of auditory function were utilized to define the locus of dysfunction at neural levels ranging from the auditory nerve, midbrain, and cortical levels.

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