Development of low-frequency tone burst versus the click auditory brainstem response

Often ABR threshold testing employs clicks to assess high-frequency hearing, and low-frequency tone bursts to assess low-frequency sensitivity. While a maturation effect has been shown for click stimuli, similar data are lacking for low-frequency toneburst stimuli. Thus, 305 infants ranging in conce...

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Bibliographic Details
Published inJournal of the American Academy of Audiology Vol. 16; no. 2; p. 114
Main Authors Hurley, Raymond M, Hurley, Annette, Berlin, Charles I
Format Journal Article
LanguageEnglish
Published United States 01.02.2005
Subjects
Age Factors
Audiometry, Evoked Response - methods
Child, Preschool
Evoked Potentials, Auditory, Brain Stem
Female
Hearing Loss, High-Frequency - diagnosis
Hearing Loss, High-Frequency - epidemiology
Hearing Loss, Sensorineural - diagnosis
Hearing Loss, Sensorineural - epidemiology
Humans
Incidence
Infant
Infant, Newborn
Male
Neonatal Screening - methods
Perceptual Masking
Risk Assessment
Sensitivity and Specificity
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Summary:Often ABR threshold testing employs clicks to assess high-frequency hearing, and low-frequency tone bursts to assess low-frequency sensitivity. While a maturation effect has been shown for click stimuli, similar data are lacking for low-frequency toneburst stimuli. Thus, 305 infants ranging in conceptional age (CA) from 33 weeks to 74 weeks were tested. Absolute latencies were measured for wave V at 55, 35, and 25 dB nHL in response to a click and for wave V500 in response to a 500 Hz tone burst. Major wave latency in response to 500 Hz tone bursts decreases with age and do not stabilize by 70 weeks CA. Likewise, waves III and V latencies in response to clicks decrease with age, as has been reported by others, and do not stabilize by 70 weeks CA. Wave I latency produced by clicks did not decrease with age, being mature by 33 weeks CA.
ISSN:1050-0545
DOI:10.3766/jaaa.16.2.6