The future of behavioral pharmacology.- Session I Environmental Influences Affecting the Voluntary Intake of Drugs.- Environmental influences affecting the voluntary intake of drugs: an overview.- An experimental analysis of behavioral factors in drug dependence.- Second-order schedules of drug injection.- Behavioral functions of narcotic antagonists: response-drug contingencies.- Experimental models for the modification of human drug self-administration: Methodological developments in the study of ethanol self-administration by alcoholics.- Session II Interactions of Behavioral and Neurochemical Processes.- On neurochemistry and behavior.- Behavioral correlates of serotonin depletion.- Neurochemical changes associated with schedule-controlled behavior.- Serotonergic and cholinergic mechanisms during disruption of approach and avoidance behavior.- Catecholamines and drug—behavior interactions.- Session III Behavioral Toxicology.- Behavioral toxicology: A developing discipline.- Assessing the impact of low level chemicals on development: behavioral and latent effects.- Amphetamine toxicity: behavioral and neuropathological indexes.- Psychophysical evaluation of toxic effects on sensory systems.- Behavioral effects of mercury and methylmercury.- Session IV Contingencies of Reinforcement as Determinants of Drug Response.- Schedule-controlled behaviors as determinants of drug response.- Determinants of drug effects on punished responding.- The role of discriminative stimuli in modulating drug action.- Reinforcement schedules and extrapolations to humans from animals in behavioral pharmacology.- Discrete trial analysis of drug action.