title: [Behavioral states. An in utero study].
abstract: OBJECTIVE
  This study aims to show how a single linear transducer and different state variables can be used to enable accurate identification of behavioural states.
  
  
  METHODS
  Prospective observation study.
  
  
  METHODS
  Clinic of Obstetrics and Gynaecology III at the "Federico II" University of Naples.
  
  
  METHODS
  Fifteen fetuses of women hospitalized in the Clinic of Gynaecology at the "Federico II" University of Naples at the end of a full-term, uncomplicated, single pregnancy with a reliably dated last menstruation.
  
  
  METHODS
  Ultrasound observation, registration and data processing of various fetal activities in the uterus mouth movements (sucking), other mouth movements, eye movements, gross body movements.
  
  
  RESULTS
  The fetal activities identified correspond exactly to the criteria established for the definition of state variables. An examination of the data thus obtained shows an inverse correlation between mouth movements and the other activities, and a direct correlation between the other three variables we considered.
  
  
  CONCLUSIONS
  The results obtained in our study show that this method can be profitably used to identify the behavioural states, in full-term, uncomplicated pregnancies.
authors.affiliation: III Clinica Ostetrica e Ginecologica, Università degli Studi di Napoli "Federico II", Napoli.
authors.forename: A
authors.initials: A
authors.lastname: D'Elia
authors.forename: M
authors.initials: M
authors.lastname: Pighetti
authors.forename: C
authors.initials: C
authors.lastname: Accardo
authors.forename: M
authors.initials: M
authors.lastname: Minale
authors.forename: P
authors.initials: P
authors.lastname: Di Meo
mesh_terms: D001519:Behavior; D005260:Female; D005324:Fetal Movement; D005333:Fetus / Q000502:physiology*; D006801:Humans; D011247:Pregnancy; D011446:Prospective Studies; D016216:Ultrasonography, Prenatal