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The development of fetal behavioural states: A longitudinal study
Author(s) -
Arduini D.,
Rizzo G.,
Giorlandino C.,
Valensise H.,
Dell'Acqua S.,
Romanini C.
Publication year - 1986
Publication title -
prenatal diagnosis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.956
H-Index - 97
eISSN - 1097-0223
pISSN - 0197-3851
DOI - 10.1002/pd.1970060207
Subject(s) - fetus , gestation , pregnancy , medicine , fetal movement , fetal heart rate , obstetrics , physiology , biology , genetics
In order to evaluate the development of fetal behavioural states a longitudinal study was performed on 35 healthy fetuses during the last trimester of pregnancy. Fetal heart rate (FHR), gross fetal body movements (FM), fetal eye movements (FEM), fetal breathing movements (FBM) and micturition were simultaneously studied at two‐week intervals from 28 weeks gestation onwards. Well‐defined fetal behavioural states were observed only after 36 weeks gestation. Between 28 and 36 weeks the quiet‐activity cycle of FHR was always detected and some fetal biophysical activites seemed to become related around this cycle.