Do former preterm infants remember and respond to neonatal intensive care unit noise?

Early Human Development
Edwin D BarretoRobert E Lasky

Abstract

Previous studies have shown that 4-month-old infants have a decrease in heart rate, a component of the orienting reflex, in response to interesting auditory stimuli and an increase in heart rate to aversive auditory stimuli. To compare the heart rate responses of former preterm and term infants at 4-5 months corrected age to a recording of NICU noises. 13 former preterm infants and 17 full-term infants were presented NICU noise and another noise of similar level and frequency content in random order. Heart rate 10s prior to the stimulus and for 20s during the stimulus was analyzed. Group differences in second by second heart rate changes in response to the two noise stimuli were compared by analysis of covariance. Both the preterm and term newborns responded similarly to the NICU noise and the control noise. The preterm infants did not alter their heart rate in response to either stimulus. In contrast, the term infants displayed an orienting response to the second stimulus presented regardless of whether it was the NICU or control noise. Former preterm infants at 4-5 months corrected age have reduced responsiveness to auditory stimulation in comparison to 4- to 5-month-old term infants. Furthermore, they did not respond to the ...Continue Reading

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Citations

Nov 26, 2010·Advances in Neonatal Care : Official Journal of the National Association of Neonatal Nurses·Isabelle Milette
May 21, 2013·Journal of Pediatric Nursing·Hyejung Lee, Rosemary White-Traut
Dec 22, 2012·Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie·Katharina Lambert, Birgit Spinath
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Jun 8, 2017·American Journal of Medical Quality : the Official Journal of the American College of Medical Quality·Mohamed Farooq AhamedOrna Rosen
Jul 24, 2020·American Journal of Perinatology·Christine CaprioloJocelyn C Leung

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