Dichotic perception and laterality in neonates.

J Bertoncini; J Morais; R Bijeljac-Babic; S McAdams; I Peretz; J Mehler

doi:10.1016/0093-934x(89)90113-2

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Dichotic perception and laterality in neonates.

J Bertoncini·J Morais·R Bijeljac-Babic·S McAdams·I Peretz·J Mehler

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Abstract

Groups of 4-day-old neonates were tested for dichotic discrimination and ear differences with the High-Amplitude-Sucking procedure. In the first experiment, dichotic speech discrimination was attested by comparison with a control group. Furthermore, among those subjects who showed a substantial recovery of sucking response at least after one of the two syllable changes, it was observed that significantly more subjects manifested a stronger reaction to a right-ear change than to a left-ear change. In the second experiment, 4-day-old neonates were tested on syllable and music timbre discrimination. The significant Stimulus Type x Ear interaction observed suggests perceptual asymmetries indicative of very precocious brain specialization.

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Arousal Dichotic Listening Tests Dominance, Cerebral Habituation, Psychophysiologic Hearing Tests Humans Infant, Newborn Music Phonetics Speech Perception Sucking Behavior Journal Article Research Support, Non-U.S. Gov't

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J Bertoncini, J Morais, R Bijeljac-Babic, S McAdams, I Peretz, J Mehler. 1989. Dichotic perception and laterality in neonates.. https://doi.org/10.1016/0093-934x(89)90113-2

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