2014年8月
Preterm birth is associated with an increased fundamental frequency of spontaneous crying in human infants at term-equivalent age
BIOLOGY LETTERS
- ,
- ,
- ,
- 巻
- 10
- 号
- 8
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1098/rsbl.2014.0350
- 出版者・発行元
- ROYAL SOC
Human infant crying has been researched as a non-invasive tool for assessing neurophysiological states at an early developmental stage. Little is known about the acoustic features of spontaneous cries in preterm infants, although their pain-induced cries are at a higher fundamental frequency (F-0) before term-equivalent age. In this study, we investigated the effects of gestational age, body size at recording and intrauterine growth retardation (IUGR) on the F-0 of spontaneous cries in healthy preterm and full-term infants at term-equivalent age. We found that shorter gestational age was significantly associated with higher F-0, although neither smaller body size at recording nor IUGR was related to increased F-0 in preterm infants. These findings suggest that the increased F-0 of spontaneous cries is not caused by their smaller body size, but instead might be caused by more complicated neurophysiological states owing to their different intrauterine and extrauterine experiences.
- リンク情報
- ID情報
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- DOI : 10.1098/rsbl.2014.0350
- ISSN : 1744-9561
- eISSN : 1744-957X
- Web of Science ID : WOS:000341329100003