Document Detail

Frontal brain activation in premature infants' response to auditory stimuli in neonatal intensive care unit.
MedLine Citation:
PMID:  19411147     Owner:  NLM     Status:  MEDLINE    
The present study was focusing on the very few contacts with the mother's voice that NICU infants have in the womb as well as after birth, we examined whether they can discriminate between their mothers' utterances and those of female nurses in terms of the emotional bonding that is facilitated by prosodic utterances. Twenty-six premature infants were included in this study, and their cerebral blood flows were measured by near-infrared spectroscopy. They were exposed to auditory stimuli in the form of utterances made by their mothers and female nurses. A two (stimulus: mother and nurse) x two (recording site: right frontal area and left frontal area) analysis of variance (ANOVA) for these relative oxy-Hb values was conducted. The ANOVA showed a significant interaction between stimulus and recording site. The mother's and the nurse's voices were activated in the same way in the left frontal area, but showed different reactions in the right frontal area. We presume that the nurse's voice might become associated with pain and stress for premature infants. Our results showed that the premature infants reacted differently to the different voice stimuli. Therefore, we presume that both mothers' and nurses' voices represent positive stimuli for premature infants because both activate the frontal brain. Accordingly, we cannot explain our results only in terms of the state-dependent marker for infantile individual differences, but must also address the stressful trigger of nurses' voices for NICU infants.
Yuri Saito; Rie Fukuhara; Shiori Aoyama; Tamotsu Toshima
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-05-02
Journal Detail:
Title:  Early human development     Volume:  85     ISSN:  1872-6232     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-06-08     Completed Date:  2009-09-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  471-4     Citation Subset:  IM    
Department of Psychology, Tokai Gakuin University, Kakamigahara, Gifu, Japan.
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MeSH Terms
Acoustic Stimulation*
Discrimination (Psychology)*
Frontal Lobe / blood supply,  physiology*
Hemoglobins / analysis
Infant, Newborn
Infant, Premature / growth & development,  psychology*
Intensive Care Units, Neonatal*
Mothers / psychology
Nurses / psychology
Regional Blood Flow
Spectroscopy, Near-Infrared
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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