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Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
[Influence of interaural time- and level differences on the binaural interaction components in normal adults]
W Delb1, G Hohenberg, D J Strauss
1Universitätsklinik und Poliklinik für Hals-Nasen-Ohrenheilkunde, Homburg/Saar, Germany. hnowdel@med-rz.uni-sb.de
Laryngo- Rhino- Otologie
|August 22, 2002
Summary
The beta-wave of binaural interaction auditory brainstem responses is present in most individuals. Beta-wave latencies, not amplitudes, show diagnostic value for hearing disorders.
Area of Science:
- Neuroscience
- Audiology
- Hearing Science
Background:
- Binaural interaction components of auditory brainstem responses, particularly the beta-wave, are linked to directional hearing.
- Auditory processing disorders often involve binaural processing deficits, suggesting diagnostic potential for these responses.
Purpose of the Study:
- Establish normal values for binaural interaction components.
- Investigate the impact of interaural time differences (ITD) and interaural level differences (ILD) on these responses.
Main Methods:
- Measured binaural interaction components in 21 healthy adults.
- Varied ITD from 0 to 1.2 ms and ILD from 0 to 30 dB.
Main Results:
- Beta-wave latencies significantly increased with increasing ITD.
- Beta-wave amplitudes remained largely unchanged with ITD.
- ILD had less pronounced and non-significant effects on beta-latencies and amplitudes.
- Beta-wave detection decreased with higher ITDs.
Conclusions:
- The beta-wave of the binaural interaction waveform is consistently observed in normal-hearing subjects.
- Beta-wave latencies appear more diagnostically valuable than amplitudes due to lower variability.
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