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Define central auditory processing disorder12/20/2023 ![]() ![]() The point is well taken that the VIII nerve is part of the peripheral auditory system, but the audiogram is not the best measure of its integrity. Of course, our behavioral CAP test battery typically cannot identify the specific site of lesion in the absence of radiology or surgery, but what behavioral (or electrophysiological) test definitively can? Many examples are out there-but for example-the pure tone audiogram doesn’t tell us as much as we thought about the health of the apical end of the basilar membrane. We believe our test battery provides reasonably good insight as to the level(s) in the CANS where the dysfunction is likely originating (or at least contributing to the dysfunction). Moreover, the word central in the term CAPD suggests how we should go about measuring ‘auditory processing.’ In other words, including “central” in the name of the disorder ensures the terminology is “ecologically” valid and an “operational” definition of how processing actually occurs. We prefer CAPD because it refers to the overall area of the auditory system (CANS) from which the preponderance of the processing deficits we measure are derived. We understand why some prefer the term APD or auditory processing disorder given that processing begins in the cochlea and continues in peripheral neural sites (i.e., VIII nerve). Why is the word “central” an integral component of the CAPD acronym? As a result, deficits are present in the perceptual processing of auditory stimuli in the central nervous system, and in the underlying neurobiological activity that gives rise to the electrophysiologic auditory evoked potentials and behavioral tests. The predominant deficits characterizing CAPD manifest in the auditory modality. What is your current working definition for this complex disorder?ĬAPD is a disorder of the central auditory nervous system (CANS) that can occur in adult and pediatric populations. Chermak, who will share with us their thoughts on the current state of CAPD as well as give us an introduction to the slate of speakers for the upcoming Third Global Conference on Central Auditory Processing Disorder. ![]() I had the distinct honor of interviewing Dr. The diagnosis and treatment of CAPD continues to evolve with a blending of scientific evidence from audiology, neuroscience, speech-language pathology, psychology, and many other fields. Musiek and Chermak about the diagnosis and treatment of CAPD as well as the Third Global Conference on Central Auditory Processing Disorder: Synergies Between Lab and Clinic, at AAA 2019, March 30, in Columbus, Ohio.Ĭentral auditory processing disorder (CAPD) continues to be of great interest to many audiologists given the complex interconnectivity of the central auditory nervous system. Academy Editor-in-Chief Erin Schafer, PhD, spoke with Drs. ![]()
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