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Disorders Friday!?!/*%# Or Into the black box…

Disorders Friday!?!/*%# Or Into the black box…. Reading Assignments: Chapter 13 (all) Chapter 14 (pp. 220-228 only). Central Auditory Processing Disorders (CAPD). CAPD: aberrant behavior caused by pathology of midbrain or cortex Common case: lesion of temporal cortex

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Disorders Friday!?!/*%# Or Into the black box…

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  1. Disorders Friday!?!/*%#Or Into the black box… Reading Assignments: Chapter 13 (all) Chapter 14 (pp. 220-228 only)

  2. Central Auditory Processing Disorders (CAPD) • CAPD: aberrant behavior caused by pathology of midbrain or cortex • Common case: lesion of temporal cortex • Temporal cortex: Section of cortex devoted to primary and secondary auditory processing • Other causes: lesion between pathways connecting temporal cortex to other areas

  3. Central Auditory Processing Disorders (CAPD) • Major concerns for CAPDs • Pre or post-lingual • Post-lingual tends to cause more specific deficits • Pre-lingual causes general auditory problems • Difficult to assess • General symptoms • Non-specific tests

  4. How are CAPDs recognized? • Deficit in one of the following: • Localization • Categorization • Pattern recognition • Lexical processing • Auditory attention • Echoic memory • Sustained attention

  5. How are CAPDs recognized? • Deficit in one of the following (con’t): • Temporal resolution • Phase locking deficits • Higher gap detection thresholds • Signal to noise/signal processing • Inability to understand speech in noise • CAPDs may not be limited to auditory system • General atrophy of system affecting multiple modalities • High level: ADD • Low level: Temporal jittering

  6. Testing for CAPDs • Caveat of testing • Subtlety of symptoms • Range of disorders • Audiometric assessment • Span of apprehension • Repeat digit sequence • 7 +/- 2 normed across age groups • Greater or lesser • Lexical decoding • Presentation of overlapping words • Hotdog/Wheelchair (dog=wheel) • Amount of interference (order effects, ear of presentation effects) • Phonological decoding • Ability to organize phonemes into words • Predicts reading ability (Reversals, speed of response/ADD

  7. Popcorn?

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