1. ACTH modulation of memory storage processing;Gold,1981
2. Effect of adrenocorticotropic hormone on conditioned avoidance in rats interpreted as state dependent learning;Gray;Journal of Comparative and Physiological Psychology,1975
3. Effect of beta-endorphin and naloxone on acquisition, memory and retrieval of shuttle avoidance and habituation learning in rats;Izquierdo;Psychopharmacology,1980
4. Endogenous state dependency: Memory regulation by posttraining and pre-testing administration of ACTH, β-endorphin, adrenaline and tyramine;Izquierdo;Brazilian Journal of Medical and Biological Research,1983
5. A physiological amnesic mechanism mediated by endogenous opioid peptides and its possible role in learning;Izquierdo,1982