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The hyperactive acoustic reflex. Four case studies
Archives of Otolaryngology (Chicago, Ill. : 1960)
|July 1, 1980
Summary
Low acoustic reflex thresholds may indicate central auditory processing disorders. Hyperactive acoustic reflex responses suggest decreased central inhibition, potentially aiding diagnosis.
Area of Science:
- Audiology
- Neuroscience
- Speech-Language Pathology
Background:
- Central auditory processing disorders (CAPD) can be challenging to diagnose.
- Neurological and audiological assessments are crucial for identifying CNS impairments.
Observation:
- Four case studies explored the link between acoustic reflex thresholds and CAPD.
- Subjects with suspected central nervous system (CNS) impairment showed positive CAPD tests.
- Three subjects exhibited acoustic reflex responses at unusually low hearing levels.
Findings:
- Lowered acoustic reflex thresholds were observed, interpreted as hyperactive responses.
- This hyperactivity suggests reduced central inhibition over peripheral auditory function.
- A fourth subject showed lowered thresholds after electroshock treatment.
Implications:
- Hyperactive acoustic reflex responses may serve as a biomarker for CAPD.
- This finding could enhance diagnostic tools for central auditory processing issues.
- Further research is warranted to validate acoustic reflex testing in CAPD assessment.