Interactions of partial LSD analogs with behavioral disrupting effects of LSD and DMT in the rat.
European Journal of Pharmacology January 1, 1978 B Kovacic, L J Wang Lu, D Ruffing et al.
Adult male Holtzman rats were trained to barpress on a schedule whereby every fourth press earned a reward of 0.01 ml of sugar-sweetened milk (FR4). After an i.p. injection of LSD (0.1 mg/kg) or DMT (3.2 or 10 mg/kg) such barpressing is abolished completely and resumed, usually within an hour, at a rate near the preinjection control rate of pressing. It continues at a steady, uninterrupted pace...