title: ABR and DPOAE indices of normal loudness in children and adults.
abstract: Loudness growth prediction using normal templates of loudness derived with ABR and DPOAE measures was investigated in 20 children 4 to 12 years and 20 adults with normal hearing. An ABR click latency-intensity function (LIF), ABR 2 kHz tone LIF, and DPOAE 2 kHz amplitude-intensity function (AIF) were recorded from each listener. A loudness-intensity function was also measured for each electrophysiologic stimulus. Children and adults exhibited similar intensity functions of ABR latency, DPOAE amplitude, and loudness. A statistically significant relationship was found between loudness and ABR latency and DPOAE amplitude. Loudness estimation equations derived with ABR latency and DPOAE amplitude accurately and reliably predicted the loudness-intensity functions of the listeners. Normative ABR and DPOAE templates of predicted loudness growth may have clinical application in site-of-lesion assessment or hearing aid fitting by distinguishing abnormal rates of loudness growth for individuals who cannot provide reliable behavioral measures.
authors.affiliation: Department of Communication Sciences and Disorders, Adelphi University, Hy Weinberg Center, Garden City, NY 11530, USA. serpanos@adelphi.edu
authors.forename: Yula Cherpelis
authors.initials: YC
authors.lastname: Serpanos
mesh_terms: D000158:Acoustic Impedance Tests; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006311:Hearing Disorders / Q000175:diagnosis*; D006801:Humans; D016014:Linear Models; D008144:Loudness Perception / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology*