Differential reinforcing value of speech and heartbeats : a measure of functional lateralization in the neonate

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Phyllis A. Prescott (Creator)
The University of North Carolina at Greensboro (UNCG )
Web Site: http://library.uncg.edu/
Anthony J. DeCasper

Abstract: By learning to suck on a nonnutritive nipple in temporal patterns selected by the experimenter, newborns could control whether the sounds of filtered female speech entered their left ear or their right ear. Similarly, other newborns could learn to control whether intrauterine heartbeat sounds entered one ear or the other. Infants consistently learned to suck so as to have speech sounds enter their right ear and heartbeat sounds enter their left ear. The right-ear speech preference and left-ear heartbeat preference in newborns averaging 52 hours of age indicates that auditory perception is functionally lateralized at birth and presumably, therefore, before.

Additional Information

Language: English
Date: 1985
Cerebral dominance
Auditory perception in infants

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