PT - JOURNAL ARTICLE AU - Francis, Darlene D. AU - Diorio, Josie AU - Plotsky, Paul M. AU - Meaney, Michael J. TI - Environmental Enrichment Reverses the Effects of Maternal Separation on Stress Reactivity AID - 10.1523/JNEUROSCI.22-18-07840.2002 DP - 2002 Sep 15 TA - The Journal of Neuroscience PG - 7840--7843 VI - 22 IP - 18 4099 - http://www.jneurosci.org/content/22/18/7840.short 4100 - http://www.jneurosci.org/content/22/18/7840.full SO - J. Neurosci.2002 Sep 15; 22 AB - Postnatal maternal separation increases hypothalamic corticotropin-releasing factor (CRF) gene expression and hypothalamic-pituitary-adrenal (HPA) and behavioral responses to stress. We report here that environmental enrichment during the peripubertal period completely reverses the effects of maternal separation on both HPA and behavioral responses to stress, with no effect on CRF mRNA expression. We conclude that environmental enrichment leads to a functional reversal of the effects of maternal separation through compensation for, rather than reversal of, the neural effects of early life adversity.