title: Influence of a chronic ultramild stress procedure on decision-making in mice.
abstract: OBJECTIVE
  To test the influence of a chronic ultra mild stress (CUMS) procedure, based solely on socio-environmental stressors, on cognitive-behavioural function in mice.
  
  
  METHODS
  Behavioural study.
  
  
  METHODS
  B6D2F1 mice.
  
  
  METHODS
  Mice were exposed to various stressors and then tested using a decision-making task.
  
  
  RESULTS
  We observed that stress facilitated "choice" behaviour, with an absence of "no choice" behaviour. Stress also facilitated a more rapid capacity to process information, a decrease in the level of evaluation of the choice situation and less hesitation. These stress-related consequences on decision making may be attributed to a higher level of distractability in the stressed mice.
  
  
  CONCLUSIONS
  The CUMS model may be useful for the study of stress-related disorders by proposing a new method for assessing gene-environment interactions in cognitive-affective behaviours.
authors.affiliation: Université Paris VI, Hôpital de la Salpêtrière, France.
authors.forename: M C
authors.initials: MC
authors.lastname: Pardon
authors.forename: F
authors.initials: F
authors.lastname: Pérez-Diaz
authors.forename: C
authors.initials: C
authors.lastname: Joubert
authors.forename: C
authors.initials: C
authors.lastname: Cohen-Salmon
mesh_terms: D000818:Animals; D002908:Chronic Disease; D003657:Decision Making / Q000502:physiology*; D005260:Female; D051379:Mice; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D013315:Stress, Psychological / Q000523:psychology*