1Dunbar GL,Rylett R J,Schnidt BM,et al.Hippocampal choline acetyl transferase activity correlates with spatial learning in aged rats.Brain Res,1993,604:267
2Melis F,Stancampiano R,Imperato A,et al.Chronic ethanol consumption in rats:correlation between memory performance and hippocampal acetylcholine release in vivo.Neuroscience,1996,74:155
3Miranda ML,Lopez-Colome AM,Bermadez Rattoni F.Recovery of taste aversion leaminginduced by fetal neocortex grafts:correlation with in vivo extracellular acetylcholine.Brain Res,1997,759:141
4Perry E,Walker M,Grace J,et al.Acetylcholine in mind:a neurotransmitter correlate of consciousness? Trends Neurosci,1999,22(6):273
5Mazer C,Muneyyirci J,Taheny K,et al.Seretonin depletion during synap to genesis leads to decreased synaptic density and learning deficits in the adult rat:a possible model of neurodevelopmental disorders with cognitive deficits.Brain Res,1997,760:68
7Yu ZF,Cheng GJ,Hu BR.Mechanism of colchicine impairment on learning and memory,and protective effect of CGP in mice.Brain Res,1997,750:53
8Justino L,W elner SA,Tannenbaum GS,et al.Long-term effects of cysteamine on cognitive and locomotor behavior in rats:relationship to hippocampal glial pathology and somatostatin levels.Brain Res,1997,761:127
9Hayashi M,Yamashita A,Shimizu K.Somatostatin and brainderived neurotrophic factor mRNA expression in the primate brain:decreased levels of mRNAs during aging.Brain Res,1997,749:283
10Kovacs G,Dewied D.Peptidergic modulation of learning and memory processes.Pharmacolo -gical Reviews,1994,46:269
