1. Behavioral and electrophysiological effects of peptides related to lipotropin;de Wied;Journal of Pharmacology and Experimental Therapeutics,1978
2. Memory enhancement: Supra-additive effect of subcutaneous cholinergic drug combinations in mice;Flood;Psychopharmacology,1985
3. Effect of a novel experience prior to training or testing on retention of an inhibitory avoidance task in mice: Involvement of an opioid system;Izquierdo;Behavioral and Neural Biology,1985
4. Construction and reconstruction of memories;Izquierdo;Brazilian Journal of Medical and Biological Research,1988
5. Retrieval enhancement by β-endorphin or novel experiences given prior to testing: Effect of atropine;Netto;Brazilian Journal of Medical and Biological Research,1988