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Central Auditory Processing Disorder

The etiology of CAPD may be linked to a specific lesion or disorder, or may be unknown. Causes and risk factors for CAPD may include the following (Bamiou, Musiek, & Luxon, 2001; Baran & Musiek, 1999; Chermak & Musiek, 2011):

  • Age-related changes in CANS function
  • Genetic determinants
  • Neurological disorder, disease, or damage
    • Brain injury (e.g., head trauma, meningitis)
    • Cerebrovascular disorder (e.g., stroke)
    • Degenerative diseases (e.g., multiple sclerosis)
    • Exposure to neurotoxins (e.g., heavy metals, organic solvents)
    • Lesions of the central nervous system (CNS)
    • Seizure disorders
  • Neuromaturational delay secondary to deafness/auditory deprivation
  • Otologic disorder, disease, or injury (e.g., auditory deprivation secondary to recurrent otitis media)
  • Prenatal/neonatal factors
    • Anoxia/hypoxia
    • Cytomegalovirus (CMV)
    • Hyperbilirubinemia
    • Low birth weight
    • Prematurity
    • Prenatal drug exposure

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