The quantification of pure-tone audiograms and auditory brain stem evoked responses using mathematical modeling procedures.
The relationship between quantified pure-tone audiometric variables (namely, pure-tone audiometric slope and the degree of hearing loss) and the slope of the wave V L-I (latency-intensity) function of the ABR was investigated. The influence of loudness recruitment on the relationship between audiogram slope and the wave V L-I slope was also studied. Fifty-five ears were selected and divided into two groups (a positive Metz group consisting of 35 ears and a negative Metz group comprising 20 ears) for statistical analyses. The results of the study indicated no significant relationship between the audiogram variables and the slope of the wave V L-I function. However, a significant relationship emerged between the degree of hearing loss and the slope of the L-I function. The results also suggested that neither loudness recruitment nor audiometric configuration influenced the slope of the L-I function.
Smyth
V
V
Department of Speech and Hearing, University of Queensland, Australia.
Ravichandran
S
S
Capell
K
K
D000293:Adolescent; D000328:Adult; D000368:Aged; D001301:Audiometry, Pure-Tone; D016057:Evoked Potentials, Auditory, Brain Stem; D006801:Humans; D012001:Hyperacusis; D016014:Linear Models; D008875:Middle Aged; D008962:Models, Theoretical; D012044:Regression Analysis; D012189:Retrospective Studies