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Causes of higher auditory pathway lesions

Causes of higher auditory pathway lesions. Auditory nerve Acoustic neuromas Acoustic neuritis (inflammation) Multiple sclerosis Higher centers Cerebrovascular accidents Rh incompatibility Tumours Age Syphilis. Consequences. Progressive hearing loss, may be unilateral

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Causes of higher auditory pathway lesions

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  1. Causes of higher auditory pathway lesions Auditory nerve Acoustic neuromas Acoustic neuritis (inflammation) Multiple sclerosis Higher centers Cerebrovascular accidents Rh incompatibility Tumours Age Syphilis

  2. Consequences Progressive hearing loss, may be unilateral Vertigo, tinnitus, headache, vomiting, respiratory symptoms Speech-understanding problems that are greater than that predicted by degree of hearing loss In some cases, audiogram may look normal

  3. Auditory processing disorders Also referred to as central auditory processing disorder (CAPD). Difficulty processing auditory information in the absence of a concomitant loss of peripheral hearing sensitivity.

  4. Tests for diagnosing APD Based on intrinsic and extrinsic redundancy Example: Binaural fusion test Filtered speech tests Synthetic Sentence Identification with Ipsilateral/Contralateral competing message Staggered Spondaic Word test Masking level difference Time-compressed speech

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