Document Detail

Auditory brainstem responses to tone bursts in normally hearing subjects.
MedLine Citation:
PMID:  3352259     Owner:  NLM     Status:  MEDLINE    
Auditory brainstem responses were recorded from 20 normally hearing subjects using tone-burst stimuli that were gated with cosine-squared functions. Clear responses were observed over a wide range of frequencies and levels. These responses were highly reproducible within individual subjects and were reliably measured by two independent examiners. ABR thresholds were higher than behavioral thresholds for all frequencies, especially for lower frequencies. Intersubject variability also was greater for lower frequencies. Wave-V latencies decreased with increases in both frequency and level for frequencies from 250 to 8000 Hz and for levels from 20 to 100 dB SPL. The standard deviations seldom exceeded 10% of the mean wave-V latency for any combination of level and frequency. These latencies can be viewed as the sum of both a peripheral and a central component. Assuming that the central component is relatively independent of both frequency and level, changes of wave V latency must be related to peripheral factors, such as travel time along the cochlear partition, and to stimulus characteristics, such as rise time.
M P Gorga; J R Kaminski; K A Beauchaine; W Jesteadt
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of speech and hearing research     Volume:  31     ISSN:  0022-4685     ISO Abbreviation:  J Speech Hear Res     Publication Date:  1988 Mar 
Date Detail:
Created Date:  1988-05-12     Completed Date:  1988-05-12     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0376336     Medline TA:  J Speech Hear Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  87-97     Citation Subset:  IM    
Boys Town National Institute for Communication Disorders in Children, Omaha, Nebraska.
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MeSH Terms
Acoustic Stimulation
Auditory Threshold / physiology*
Brain Stem / physiology
Evoked Potentials, Auditory*
Reaction Time / physiology
Grant Support

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