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Pediatric central auditory dysfunction. Comparison of children with confirmed lesions versus suspected processing
S Jerger1, K Johnson, L Loiselle
1Children's Hearing Center, Baylor College of Medicine, Houston, Texas 77030.
The American Journal of Otology
|December 1, 1988
Summary
Central auditory processing disorders (CAPDs) in children are linked to brain lesions affecting auditory perception, not language. Testing revealed distinct patterns differentiating these disorders from typical hearing issues.
Area of Science:
- Neuroscience
- Audiology
- Pediatric Medicine
Background:
- Central auditory dysfunction in children presents diagnostic challenges.
- Understanding the neural basis of auditory processing disorders is crucial for effective intervention.
Purpose of the Study:
- To compare audiological test results in children with documented or suspected central auditory dysfunction.
- To differentiate between auditory perceptual and linguistic bases for central auditory processing disorders (CAPDs).
Main Methods:
- Evaluated pure tone audiometry, acoustic reflexes, and the Pediatric Speech Intelligibility Test.
- Included children aged 3 to 8 years with confirmed CNS lesions or suspected CAPDs.
- Correlated test results with lesion location in auditory and nonauditory brain areas.
Main Results:
- Children with CNS lesions in auditory areas showed abnormal results, unlike those with nonauditory lesions.
- Suspected CAPDs group exhibited normal hearing sensitivity but abnormal audiometric contours and speech perception patterns.
- Abnormalities in suspected CAPDs mirrored findings in children with temporal lobe lesions.
Conclusions:
- Results support an auditory perceptual basis for CAPDs in children.
- Findings suggest CAPDs are primarily related to how the brain processes sound, not language deficits.
- Audiological assessments can help localize auditory processing deficits in pediatric populations.