1. Bartus RT, Crook TH, Dean RL (1987) Current progress in treating age-related memory problems: a perspective from animal preclinical and human clinical research. In: Gibson Wood W, Strong R (eds) Geriatric clinical pharmacology. Raven Press, New York, pp 71–94
2. Buhot MC, Soffié M, Poucet B (1989) Scopolamine affects the cognitive processes involved in selective object exploration more than locomotor activity. Psychobiology 17: 409–417
3. Carlton P (1961) Some effects of scopolamine, atropine, and amphetamine in three behavioral situations. Pharmacologist 3: 60
4. Carlton P (1963) Cholinergic mechanisms in the control of behavior by the brain. Psychol Rev 70: 19–39
5. Carlton P (1969) Brain acetylcholine and inhibition. In: Tapp JT (ed) Reinforcement and behavior. Academic Press, New York