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Principal Investigator
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Psychobiology
 Primary Research Areas
Drug abuse, animal and human models of impulsivity, behavioral neuroscience, and the experimental analysis of behavior.
Current Projects
Drug abuse and impulsivity: Tests of animal models (funded by NIDA). Investigating impulsive behavior and its relation to drug abuse by developing valid animal models of impulsive behavior and operationalizing different concepts of impulsivity (in collaboration with Harriet de Wit, Ph.D., University of Chicago).
Genetic and behavioral dissection of inhibitory control (funded by NIMH).
Investigating biochemical changes underlying impaired inhibitory control in dopamine transporter expression (DAT knockdown) mice (Award made to Xiaoxi Zhuang, Ph.D., University of Chicago, sub-award to Jerry R. Richards, Ph.D.).
Drug abuse and impulsivity: Human laboratory models (funded by NIDA).
Investigating impulsive behavior and its relation to drug abuse using laboratory models of impulsive behavior (Award made to Harriet de Wit, Ph.D., University Chicago).
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Representative and Recent Publications
Kieres, A. K., Hausknecht, K. A., Farrar, A. M., Acheson, A., de Wit, H., & Richards, J. B. (2004). Effects of morphine and naltrexone on impulsive decision making in rats. Psychopharmacology, 173, 167-74.
de Wit, H., & Richards, J. B. (2004). Dual determinants of drug use in humans: Reward and impulsivity. In R. A. Bevins & M. T. Bardo, (Eds.), Motivational Factors in the Etiology of Drug Abuse, Nebraska Symposium on Motivation, Vol. 50. Lincoln, Nebraska: University of Nebraska Press.
Reynolds, B., Richards, J. B., Horn, K., & Karraker, K. (2004). Delay discounting and probability discounting as related to cigarette smoking status in adults. Behavioral Processes, 65, 35-42.
Reynolds, B., Karraker, K., Horn, K., & Richards, J. B. (2003). Delay and probability discounting as related to different stages of adolescent smoking and non-smoking. Behavioral Processes, 64, 333-344.
Farrar, A. M., Kieres, A. K., Hausknecht, K. H., de Wit, H., & Richards, J. B. (2003). Effects of reinforcer magnitude on an animal model of impulsive behavior. Behavioral Processes, 64, 261-272.
Sabol, K. E., Richards, J. B., Broom, S. L., Roach, J. T., & Hauskneckt, K. (2003). Effects of stimulus salience and methamphetamine on reaction time in the rat: Central tendency vs. distribution skew. Behavioral Pharmacology, 14, 489-500.
McDonald, J., Schleifer, L., Richards, J. B., & de Wit, H. (2003). Effects of THC on behavioral measures of impulsivity in humans. Neuropsychopharmacology, 28, 1356-1365.
Lejuez, C. W., Aklin, W. M., Jones, H. A., Richards, J. B., Strong, D. R., Kahler, C. W., & Read, J. P. (2003). The Balloon Analogue Risk Taking Task (BART) differentiates smokers and nonsmokers. Experimental and Clinical Psychopharmacology, 11, 26-33.
Crean J., Richards, J. B., & de Wit, H. (2002). Impulsive behavior in men with and without a family history of alcoholism: Effects of tryptophan depletion. Behavioral and Brain Research, 136, 349-357.
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