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Developmental Correlates

Kimitaka Kaga, MD; Yoshisato Tanaka, MD

Arch Otolaryngol. 1980;106(9):564-566.

Abstract
• Developmental correlates of auditory brainstem evoked responses (ABRs) and behavioral audiometry in a total of 112 normal subjects consisting of 78 infants (age, 1 to 18 months), 24 children (age, 2 to 5 years), and ten adults (age, 18 to 22 years) were studied to provide normative data for audiological and neurological applications. Thresholds of ABR, as determined by minimum stimulus intensities evoking wave V, decreased with age. Neonates had the highest ABR thresholds, and adults had the lowest. A similar pattern was observed for behavioral sensitivity as that for the ABR thresholds. Response functions determined by both methods converged with age. They crossed between the ages of 2 and 3 years. There was a trend for all peak latencies to decrease with age. This effect was particularly pronounced for the later ABR components.

(Arch Otolaryngol 106:564-566, 1980)

Author Affiliations
From the Department of Otolaryngology, Teikyo University School of Medicine, Tokyo.

Footnotes
Accepted for publication Oct 29, 1979.

Reprint requests to Department of Otolaryngology, Teikyo University School of Medicine, Kaga, 2-11-1, Itabashi-ku, Tokyo 173, Japan (Dr Kaga).

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ABSTRACT