Auditory processing disorder (APD), rarely known as King-Kopetzky syndrome or auditory disability with normal hearing (ADN), is a neurodevelopmental disorder affecting the way the brain processes sounds.[2] Individuals with APD usually have normal structure and function of the ear, but cannot process the information they hear in the same way as others do, which leads to difficulties in recognizing and interpreting sounds, especially the sounds composing speech. It is thought that these difficulties arise from dysfunction in the central nervous system.[3] This is, in part, essentially a failure of the cocktail party effect found in most people.
The American Academy of Audiology notes that APD is diagnosed by difficulties in one or more auditory processes known to reflect the function of the central auditory nervous system.[2] It can affect both children and adults, and may continue to affect children into adulthood. Although the actual prevalence is currently unknown, it has been estimated to impact 2–7% of children in US and UK populations.[4] Males are twice as likely to be affected by the disorder as females.[5][6]
Neurodevelopmental forms of APD are different than aphasia because aphasia is by definition caused by acquired brain injury. However, acquired epileptic aphasia has been viewed as a form of APD.
^Griffiths, Timothy (2002). "Central Auditory Pathologies". British Medical Bulletin. 63 (63): 107–120. doi:10.1093/bmb/63.1.107. PMID 12324387.
^ abAmerican Academy of Audiology. "Clinical Practice Guidelines: Diagnosis, Treatment and Management of Children and Adults with Central Auditory" (PDF). Retrieved 16 January 2017.
^Aristidou, Isaac L.; Hohman, Marc H. (2023), "Central Auditory Processing Disorder", StatPearls, Treasure Island (FL): StatPearls Publishing, PMID 36508531, retrieved 2023-05-19
^Cite error: The named reference :0 was invoked but never defined (see the help page).
^La Trobe University. "(C)APD". Retrieved 14 November 2010.
^Musiek, Frank; Gail, Chermak (2007). Handbook of central auditory processing disorder [auditory neuroscience and diagnosis]. Plural Publishing. p. 448. ISBN 978-1-59756-056-6.
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