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  • A Salamy
  • 1984
The various parameters of the auditory brainstem response (ABR) undergo distinct maturational transformations in early life. The multiplicity of observed changes suggests unique timetables for development of the contributing neural elements. Although the precise physioanatomic substrate of the ABR remains speculative, experimental manipulations and(More)
Average brainstem potentials evoked by auditory stimuli were recorded from the scalp's surface of human newborns and infants, 6 weeks, 3 months, 6 months and 1 year of age as well as from normal adults. The auditory processes related to peripheral transmission (PT) and central transmission (CT) were shown to mature at differential rates during the first(More)
Since maturation of ABR amplitude and latency in principle are dependent on innate as well as environmental factors and the health of the infant, it is conceivable that prematurely born infants show a maturation profile that is different from that of full term infants. In order to unequivocally address this we analyzed ABRs recorded in 465 full term infants(More)
Middle component AERs to brief click stimuli were recorded from 60 subjects in four age groups to assess age effects on waveform, latency, and amplitude. Replicable responses similar in waveform to those recorded in adults were observed in 3 - 4-year-old children, full-term newborns, and premature infants tested as early as the 31st postconceptional week.(More)
We have examined the role of serotonergic and/or dopaminergic mechanism in the mediation of the nicotine-induced depression of brainstem auditory evoked responses (BAER) to auditory stimuli. Nicotine produced dose- and time-dependent decreases in BAER amplitude. Administration of serotonin-depleting drugs (reserpine or p-chlorophenylalanine (PCPA),(More)
OBJECTIVE To assess the feasibility of obtaining transient-evoked otoacoustic emissions (TEOAEs) directly in the nursery, to examine the nature of failures in this population, and to determine the time requirements for this test relative to the auditory brain stem response (ABR). DESIGN TEOAEs and ABRs were recorded from 149 ears, at bedside, in the(More)