Assistant Professor of Psychobiology
Department of Psychiatry
Harvard Medical School
Disorders of the brain, such as addictive and anxiety disorders, affect millions of people
worldwide and present daunting challenges for treatment providers. Dr. Rowlett and his
colleagues in the Division of Behavioral Biology are investigating the behavioral and
neurobiological effects of addictive drugs and drugs used to treat anxiety disorders.
The overall goal of this research is to develop medications for treating drug abuse and anxiety
disorders that have improved therapeutic potential, yet lack significant side effects.
Understanding the consequences of ingesting illicit drugs is a key to the development of
improved treatments. By using advanced primate models, research in the Division of Behavioral
Biology is helping to understand the neurobiological basis of cocaine, heroin, and sedative
addiction. The purpose of this research is to develop pharmacotherapies to treat addiction and
prevent relapse to these commonly abused drugs.
Anxiety disorders are among the most frequently diagnosed in psychiatric medicine. Using a
multidisciplinary approach that includes collaborators in academic and industrial settings,
researchers in the Division of Behavioral Biology are exploring brain mechanisms, particularly
GABA-A receptor mechanisms, which underlie the anti-anxiety and addictive properties of
anxiolytic medications. The development of new drugs that retain clinical effectiveness
but lack abuse liability and other untoward side effects may lead to improved treatment of
anxiety disorders and related psychiatric illnesses.
Rowlett, J. K., Spealman, R. D. and Lelas, S. 1999. Discriminative stimulus effects of
zolpidem in squirrel monkeys: comparison with conventional benzodiazepines and sedative-
hypnotics. J. Pharmacol. Exp. Ther. 291:1233- 1241.
Platt, D. M., Rowlett, J. K. and Spealman, R. D. 2000. Dissociation of the cocaine-
antagonist properties and motoric effects of the D1 partial agonists SKF 83959 and SKF
77434. J. Pharmacol. Exp. Ther. 293:1017-1026.
Rowlett, J. K. 2000. A labor-supply analysis of cocaine self-administration under
progressive-ratio schedules: antecedents, methodologies, and perspectives.
Psychopharmacology 153:1-16.
Lelas, S., Rowlett, J. K. and Spealman, R.D. 2001. Triazolam discrimination in squirrel
monkeys distinguishes high-efficacy agonists from other benzodiazepines and non-
benzodiazepine drugs. Psychopharmacology 154: 96-104.
Platt, D. M., Rowlett, J. K. and Spealman, R. D. 2001. Characterization of the discriminative
stimulus effects of intravenous heroin and its metabolites in rhesus monkeys: Opioid and
dopaminergic mechanisms. J. Pharmacol. Exp. Ther. 299:760-767.
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