Encéfalo/metabolismo; Regulación del Desarrollo de la Expresión Génica/fisiología; Manejo Psicológico; Subunidades de Proteína/metabolismo; Receptores AMPA/metabolismo; Diferenciación Sexual/fisiología; Análisis de Varianza; Animales; Animales Recién Nacidos; Encéfalo/crecimiento & desarrollo; Femenino; Masculino; Subunidades de Proteína/genética; ARN Mensajero/metabolismo; Ratas; Ratas Wistar; Receptores AMPA/genética

ACTH; AMPA; AMPA glutamate receptor subunits 1­4; AMPA receptors; AMPARs; ANOVA; Ba; CRH; CeA; GluA1­4; HPA axis; IL; LTP; MeA; N-methyl-d-aspartate; NMDA; Occip; PBS; PND; PrL; RT; SEM; Sms In; Sms Out; Str; Striatum; adrenocorticotropin; analysis of variance; basal amygdaloid nucleus; brain plasticity; brief maternal separation; central amygdaloid nucleus; corticotropin-releasing hormone; dCA1; dCA3; dDG; dorsal dentate gyrus; dorsal field 1 of Ammon's horn; dorsal field 3 of Ammon's horn; early handling; hypothalamic­pituitary­adrenal axis; in situ hybridization; infralimbic cortex; limbic system; long-term potentiation; medial amygdaloid nucleus; neonatal handling; occipital cortex; phosphate-buffered saline; postnatal day; prelimbic cortex; room temperature; somatosensory inner layers; somatosensory outer layers; standard error of the mean; vCA1; vCA3; vDG; ventral dentate gyrus; ventral field 1 of Ammon's horn; ventral field 3 of Ammon's horn; α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid