Developmental change in fetal response to repeated low-intensity sound
Developmental change in fetal response to repeated low-intensity sound
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DOI：
10.1111/j.1467-7687.2007.00646.x
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发表时间：
2008-01-01
影响因子：
3.7
通讯作者：
Papageorghiou, Aris T.
中科院分区：
文献类型：
--
作者：
Morokuma, Seiichi;Doria, Valentina;Papageorghiou, Aris T.
本研究的目的是研究妊娠32至37周胎儿对重复低强度(85分贝)声音刺激的心率反应的发育变化。我们测量了心率的幅度变化作为胎儿反应的指标。在怀孕35到37周时，大多数胎儿在第一次试验中表现出减速反应。随着使用相同刺激的进一步试验，幅度降低，然后在暴露于另一种类型的刺激时恢复。相比之下，胎儿在怀孕32到34周时的反应在不同的试验中是不同的，而且暴露在另一种类型的刺激下没有恢复。我们的结果表明，胎儿对心脏反应的习惯化随着发育年龄的变化而变化。
The aim of this study was to investigate developmental changes in heart rate response to repeated low-intensity (85 dB) sound stimulation in fetuses between 32 and 37 weeks of gestation. We measured amplitude changes in heart rate as our index of fetal response. At 35 to 37 weeks of gestation, the majority of fetuses showed a deceleratory response at the first trial. Amplitude decreased with further trials using the same stimulus before recovering when exposed to another type of stimulation. In contrast, responses in fetuses at 32 to 34 weeks of gestation were variable across trials and there was no recovery with exposure to another type of stimulation. Our results suggest that fetal habituation of cardiac response changes with developmental age.