title: Fetal habituation to sound stimulus in various behavioral states.
abstract: 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.
authors.affiliation: Department of Obstetrics and Gynecology, Central Emek Hospital, Afula, Israel.
authors.forename: E
authors.initials: E
authors.lastname: Shalev
authors.forename: E
authors.initials: E
authors.lastname: Weiner
authors.forename: D M
authors.initials: DM
authors.lastname: Serr
mesh_terms: D000161:Acoustic Stimulation; D001143:Arousal / Q000502:physiology*; D005260:Female; D005333:Fetus / Q000502:physiology*; D006185:Habituation, Psychophysiologic / Q000502:physiology*; D006801:Humans; D011247:Pregnancy