1. Frontal cerebral blood flow change associated with infant-directed speech.
- Author
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Saito, Y., Aoyama, S., Kondo, I., Fukumoto, R., Konishi, N., Nakamura, K., Kobayashi, M., and Toshima, I.
- Subjects
AUDITORY perception ,NEWBORN infants ,PARENT-child relationships ,HEMODYNAMICS ,SPECTRUM analysis - Abstract
Objective: To examine the auditory perception of maternal utterances by neonates using near-infrared spectroscopy (NIRS). Methods: Twenty full-term, healthy neonates were included in this study. The neonates were tested in their cribs while they slept in a silent room. First, two probe holders were placed on the left and right sides of the forehead over the eyebrows using double-sided adhesive tape. The neonates were then exposed to auditory stimuli in the form of infant-directed speech (IDS) or adult-directed speech (ADS), sampled from each of the mothers, through an external auditory speaker. Results: A 2 (stimulus: IDS and ADS) x 2 (recording site: channel 1 (right side) and channel 2 (left side)) analysis of variance for these relative oxygenated haemoglobin values showed that IDS (Mean=0.25) increased brain function significantly (F=3.51) more than ADS (Mean=-0.26). Conclusions: IDS significantly increased brain function compared with ADS. These results suggest that the emotional tone of maternal utterances could have a role in activating the brains of neonates to attend to the utterances, even while sleeping. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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