Shalev E, Weiner E, Serr D M
Department of Obstetrics and Gynecology, Central Emek Hospital, Afula, Israel.
Gynecol Obstet Invest. 1990;29(2):115-7. doi: 10.1159/000293315.
The correlation between arousal state and fetal habituation was tested. Four behavioral states were determined according to fetal heart activity and movement pattern in 52 fetuses. Repeated wide low-frequency sound was used as external stimulus. Ceasing of response to 5 consecutive stimuli indicated habituation. The time from response to habituation was defined as habituation time. Although fetuses in a lower arousal state habituate more rapidly, the difference is not statistically significant.
对觉醒状态与胎儿习惯化之间的相关性进行了测试。根据52例胎儿的胎心活动和运动模式确定了四种行为状态。使用重复的宽低频声音作为外部刺激。对连续5次刺激停止反应表明出现习惯化。从反应到习惯化的时间定义为习惯化时间。尽管处于较低觉醒状态的胎儿习惯化更快，但差异无统计学意义。
