Gender effects in auditory brainstem responses to air- and bone-conducted clicks in neonates.
Examinations of gender differences in auditory brainstem response (ABR) wave V latencies and thresholds to air- and bone-conducted clicks were undertaken with neonates. Two hundred and two full-term neonates participated (i.e., 103 males and 99 females). Wave V latency measures for air- and bone-conducted click stimuli of 30, 45, and 60 dB nHL and 15 and 30 dB nHL, respectively, and thresholds to air- and bone-conducted clicks were determined. Female newborns displayed statistically significant shorter wave V latencies than male newborns for air-conducted click stimuli (i.e., approximately 0.2-0.3 ms; P=.0016). There were no significant gender differences in wave V latencies to bone-conducted click stimuli (P=.11). With respect to ABR thresholds, no statistically significant differences were observed for either air-conducted clicks (P=.054) or bone-conducted clicks (P=.18).


OBJECTIVE
As a result of this activity, the participant will be able to (1) describe gender differences in ABR wave V latencies and thresholds to air- and bone-conducted clicks with neonates and (2) summarize possible explanations for observed gender differences in ABR wave V latencies and thresholds to air- and bone-conducted clicks with neonates.
Stuart
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Department of Communication Sciences and Disorders, School of Allied Health Sciences, East Carolina University, Greenville, NC 27858-4353, USA. stuarta@mail.ecu.edu
Yang
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EY
D001309:Auditory Threshold / Q000502:physiology; D001844:Bone Conduction / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006311:Hearing Disorders / Q000175:diagnosis / Q000453:epidemiology*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D015997:Neonatal Screening; D012189:Retrospective Studies; D012737:Sex Factors