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Kazuo Maeda
Kazuo Maeda
Tottori University Medical School,
Yonago
Japan
Publications
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Research Article
Fetal Response to Sound and Light: Possible Fetal Education?
Author(s): Kazuo Maeda and Tatsumura MKazuo Maeda and Tatsumura M
Purpose: To assess fetal well-being and education ability by fetal response to sound and light. Material: Intrauterine fetuses in late pregnancy. Methods: The sound source was a loud speaker connected to an audioamplifier, of which source was sine waves, generated in a stimulator. The sound power was measured by an audiometer. The loud speaker was placed at the pregnant abdomen. A photographic speed light, of which guide number was 25, was flushed at pregnant abdomen around at fetal face, in the photic stimulation. Results: Acoustic and visual stimulation effects were fetal movements and heart rate (FHR) acceleration in fetal actocardiogram. The stimulation with 1,000 Hz 80 decibel (dB) sound for 2 S produced positive effects at 28 weeks, while 60 dB sounds achieved positive effects in 40 weeks, namely, sound sensitivity increased 10 folds in late pregnancy. Although foetuses responde.. View More»
DOI: 10.4172/2167-0897.1000247