Maternal experience produces long-lasting behavioral modifications in the rat.
Behav Neurosci
; 119(4): 1084-96, 2005 Aug.
Article
en En
| MEDLINE
| ID: mdl-16187836
From 5 to 22 months of age, cognitive and emotional responses of nulliparous, primiparous, and multiparous rats were assessed using a dry land maze (DLM) and an elevated plus-maze (EPM) at 4-month intervals. Parous rats exhibited improved spatial memory in the probe and competitive versions of the DLM, and more exploration in the EPM and a novel stimulus test relative to nulliparous females. The nulliparous females, however, outperformed parous rats during the DLM visual cue test at 17 months of age. At 23 months, no differences in stressed corticosterone levels or Golgi-stained hippocampal neurons were observed. Thus, cognitive and emotional modifications were observed in parous rats; the neurobiological mechanisms for these enduring effects, however, remain to be identified.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Paridad
/
Conducta Competitiva
/
Aprendizaje por Laberinto
/
Conducta Alimentaria
/
Conducta Materna
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Pregnancy
Idioma:
En
Revista:
Behav Neurosci
Año:
2005
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos