Related Experiment Videos
Auditory brain stem responses and cortical auditory-evoked potentials in difficult-to-test children
Summary
This study used electrophysiological tests, including brain-stem-evoked responses (BERs) and auditory-evoked potentials (AEPs), to assess hearing and neurological function in children with severe behavioral disorders. Findings helped identify hearing issues and relate auditory processing to behavioral classifications.
Area of Science:
- Neuroscience
- Audiology
- Child Psychiatry
Background:
- Severe behavioral disorders in children can be linked to underlying sensory or neurological issues.
- Accurate audiological and neurophysiological assessment is crucial for effective diagnosis and treatment planning.
- Standard audiological tests may be challenging in children with behavioral disorders, necessitating specialized approaches.
Purpose of the Study:
- To investigate the utility of brain-stem-evoked responses (BERs) and cortical auditory-evoked potentials (AEPs) in evaluating children with severe behavioral disorders.
- To identify potential hearing impairments, such as conductive hearing loss (glue ear) and sensorineural deafness, in this population.
- To correlate electrophysiological findings with clinical behavioral classifications.
Main Methods:
- Recorded brain-stem-evoked responses (BERs) and cortical auditory-evoked potentials (AEPs) in 24 children with severe behavioral disorders.
- Utilized sedation or general anesthesia for BER testing to ensure precision.
- Performed acoustic impedance measurements to detect middle ear pathologies like glue ear.
- Assessed for sensorineural deafness through electrophysiological tests.
- Correlated normal BER findings with modifications in cortical AEPs based on a clinical classification related to DSM-III.
Main Results:
- Identified 3 cases of glue ear through precise acoustic impedance measurements.
- Diagnosed and addressed sensorineural deafness where present.
- Observed modifications in cortical AEPs in children with normal BERs, suggesting a link between auditory processing and behavioral classification.
Conclusions:
- Electrophysiological testing, including BERs and AEPs, is valuable for assessing hearing and auditory processing in children with severe behavioral disorders.
- Sedation facilitates accurate audiological assessments, revealing treatable conditions like glue ear.
- Cortical AEP modifications in the absence of BER abnormalities may provide insights into the neurophysiological underpinnings of behavioral disorders.