Sunday, May 2, 2010

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Mapping the Auditory System
  • Auditory System is  complex and non-modular and interactive
  • Auditory System Overlaps Other Systems

 CAPD  or APD and Underlying Perceptual and Neural Processes
  • Sound Localization & Lateralization
  • Auditory Discrimination
  • Abnormal neurophysiologic representation of speech & nonspeech signals
  • Auditory Pattern Recognition
  •  Temporal Processing
  • Auditory Performance With Competing/Degraded Acoustic Signals
Neurobiologic Origins of APD Abnormal Neurophysiologic Representation of Auditory Stimuli
  • Abnormal neurophysiologic representation of speech & nonspeech signals
  • Interhemispheric transfer deficits (in children likely due to developmental delay in myelination)
  • Lack of appropriate hemispheric lateralizatoin
  • Atypical hemispheric asymmetries
  • Atypical timing in CANS/imprecise synchrony of neural firing 
  • Decreased central inhibition 

From Gail Chermak's Presentation on APD

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