Human behavioral pharmacology
Behavioral economics of drug self-administration
Delay discounting and impulsivity in drug dependence
Atypical drugs of abuse (e.g., hallucinogens)
Drug administration studies: alcohol, benzodiazepines, caffeine, cocaine, GHB, nicotine, psilocybin

1998: B.S., Eastern Oregon University, Psychology
2002: M.A., University of Vermont, General/Experimental Psychology, Biobehavioral Specialization
2004: Ph.D., University of Vermont, General/Experimental Psychology, Biobehavioral Specialization
2004-2007: Post-doctoral Fellowship, Johns Hopkins University School of Medicine, Behavioral Pharmacology

Positions

1999 - 2004: Pre-doctoral Fellow, National Institute on Drug Abuse,
Human Behavioral Pharmacology Laboratory, University of Vermont
2004 - 2007: Post-doctoral Fellow, National Institute on Drug Abuse, Behavioral Pharmacology Research Unit, Johns Hopkins University School of Medicine
2007 - present: Faculty Instructor, Behavioral Pharmacology Research Unit, Department of Psychiatry, Johns Hopkins University School of Medicine

1998: Eastern Oregon University Outstanding Psychology Student Award
2001: University of Vermont Graduate Student Mini-Grant Travel Award
2002: National Institute on Drug Abuse Travel Award for the 64th Annual Scientific Meeting of the College on Problems of Drug Dependence, Quebec City, Quebec, Canada
2003: Experimental Analysis of Human Behavior Special Interest Group of the Association for Behavior Analysis Student Paper Award
2003: University of Vermont Graduate Student Mini-Grant Travel Award
2003: National Institute on Drug Abuse Travel Award for the 111th Annual Meeting of the American Psychological Association, Toronto, Ontario, Canada
2004: Society for the Advancement of Behavior Analysis Student Presenter Grant for the Annual Convention of the Association for Behavior Analysis, Boston, MA
2004: National Institute on Drug Abuse Women and Gender Differences Travel Award for the 66th Annual Scientific Meeting of the College on Problems of Drug Dependence, San Juan, PR.
2006: National Institute on Drug Abuse Travel Award for the 114th Annual Meeting of the American Psychological Association, New Orleans, LA
2007: College on Problems of Drug Dependence Early Career Investigator Award for the 69th Annual Scientific Meeting of the College on Problems of Drug Dependence, Quebec City, Quebec, Canada

Fall 1997 - Spring 1998, Psychology Department Teaching Assistant, Eastern Oregon University
Fall 1997 - Spring 1998, Supplemental Instructor, General Psychology, Eastern Oregon University
Summer 2001 - Instructor, General Psychology, University of Vermont
Spring 2002 - Instructor, Psychology of Learning, Saint Michael's College, Course included animal learning laboratory component
Summer 2002 - Instructor, General Psychology, University of Vermont
Summer 2002, 2003 - Invited lecturer, Behavior Analysis and Pharmacology, Medical Student Seminar in Human Behavioral Pharmacology, University of Vermont
Fall 2002 - Instructor, Psychopharmacology, University of Vermont

Addiction
Adis Drug Evaluation
American Journal of Psychiatric Rehabilitation
Behavioural Pharmacology
Behavioral Processes
Drug and Alcohol Dependence
Experimental and Clinical Psychopharmacology
Journal of Applied Behavior Analysis
Journal of Experimental Psychology: General
Journal of Pharmacology and Experimental Therapeutics
Journal of Psychopharmacology
Journal of Studies on Alcohol and Drugs
Journal of the Experimental Analysis of Behavior
Psychological Reports
Psychonomic Bulletin and Review

2001 - present, College on Problems off Drug Dependence, In-Training Member
2007 - present, College on Problems off Drug Dependence, Human Subjects Research Committee Member
2008 - present, International Study Group Investigating Drugs as Reinforcers

2004, American Psychological Association. Symposium: Bickel, W.K. & Johnson, M.W. (Chairs). Delay discounting: Exploring its association with drug dependence. Symposium held at the Annual Meeting of the American Psychological Association. Honolulu, HI.

Johnson, M.W. & Ettinger, R.H. (2000). Active cocaine immunization attenuates the discriminative properties of cocaine. Experimental and Clinical Psychopharmacology, 8, 163-167.

Baker, F., Bickel, W.K., & Johnson, M.W. (2001). Delay discounting of money, cigarettes, and health in cigarette smokers: A comprehensive study. Drug and Alcohol Dependence, 63, Supplement 1, 10.

Bickel, W.K., Johnson, M.W., & Giordano, L.A. (2002). Discounting: An evolved psychological mechanism commandeered in drug dependence? Problems of drug dependence, NIDA Research Monograph, 182, 67-69.

Johnson, M.W., Baker, F., & Bickel, W.K. (2002). Delay Discounting in Ecstasy Users. Drug and Alcohol Dependence, 66, Supplement 1, 87.

Johnson, M.W. & Bickel, W.K. (2002). Within-subject comparison of real and hypothetical money rewards in delay discounting. Journal of the Experimental Analysis of Behavior, 77, 129-146.

Baker, F., Johnson, M.W., and Bickel, W.K. (2003a). Delay discounting differs between current and never-smokers across commodities, sign, and magnitudes. Journal of Abnormal Psychology, 112, 382-392.

Baker, F., Johnson, M.W., & Bickel, W.K. (2003b). Decision making in state lotteries: Half now or all of it later? Psychonomic Bulletin and Review, 10, 965-970.

Johnson, M.W. & Bickel, W.K. (2003). The behavioral economics of cigarette smoking: The concurrent presence of a substitute and an independent reinforcer. Behavioural Pharmacology, 14, 137-144.

Bickel, W.K. & Johnson, M.W. (2003). Delay discounting: A fundamental behavioral process of drug dependence. In G. Loewenstein, D. Read & R.F. Baumeister (Eds.) Time and Decision. Russell Sage Foundation, New York.

Bickel, W.K. & Johnson, M.W. (2003). Junk time: Pathological behavior as the interaction of evolutionary and cultural forces. In N. Heather and R. Vuchinich (Eds.), Choice, Behavioral Economics, and Addictions. Pergamon, Boston.

Johnson, M.W., Bickel, W.K., & Kirshenbaum, A.P. (2004). Substitutes for tobacco smoking: A behavioral economic analysis of nicotine gum, denicotinized cigarettes, and nicotine-containing cigarettes. Drug and Alcohol Dependence, 74, 253-264.

Griffiths, R.R. & Johnson, M.W. (2005). Relative abuse liability of hypnotic drugs: a conceptual framework and algorithm for differentiating among compounds. Journal of Clinical Psychiatry, 66, 31-41.

Heil, S.H., Johnson, M.W., Higgins, S.T., & Bickel, W.K. (2005). Delay discounting in currently using and currently abstinent cocaine-dependent outpatients and non-drug-using matched control. Addictive Behaviors, 31, 1290-1294.

Johnson, M.W. & Griffiths, Roland, R. (2005). Ramelteon: A viewpoint by Matthew W. Johnson and Roland R. Griffiths. CNS Drugs, 19, 1066-1067.

Yi, R., Johnson, M.W., & Bickel, W.K. (2005). Relationship between cooperation in an iterated prisonerÕs dilemma game and the discounting of hypothetical outcomes. Learning and Behavior, 33, 324-336.

Johnson, M.W. & Bickel, W.K. (2006). Replacing relative reinforcing efficacy with behavioral economic demand curves. Journal of the Experimental Analysis of Behavior, 85, 73-93.

Johnson, M.W., Suess, P.E., & Griffiths (2006). Ramelteon: A novel hypnotic lacking abuse liability and sedative adverse effects. Archives of General Psychiatry, 63, 1149-1157.

Johnson, M.W., Bickel, W.K., Baker, F. (2007). Moderate drug use and delay discounting: A comparison of heavy, light, and never smokers. Experimental and Clinical Psychopharmacology, 15, 187-194.

Mintzer, M.Z. & Johnson, M.W. (2007) Opioids. In. The Neuropsychological Consequences of Substance Abuse. A. Kalechstein and W. Van Gorp (eds.) Taylor Francis: New York, NY.

Johnson, M.W., Bickel, W.K. (2008). An algorithm for identifying nonsystematic data in delay discounting research. Experimental and Clinical Psychopharmacology, 16, 264-274.

Yi, R., Johnson, M.W., Giordano, L.A., Landes, R.D., Badger, G.J., Bickel, W.K. (2008). The effects of reduced cigarette smoking on discounting future rewards: an initial evaluation. The Psychological Record, 58, 163-174.

Griffiths, R.R., Richards, W.A., Johnson, M.W., McCann, U.D., Jesse, R. (in press) Mystical-type experiences occasioned by psilocybin mediate the attribution of spiritual significance 14 months later. Journal of Psychopharmacology

Johnson, M. W., Richards, W. A., Griffiths, R. R. (in press). Human hallucinogen research: Guidelines for safety. Journal of Psychopharmacology.

Johnson, M.W. & Bickel, W.K. (2001). The behavioral economics of cigarette smoking: The concurrent presence of a substitute and an independent reinforcer. Paper presented at the 27th Annual Scientific Meeting of the International Study Group Investigating Drugs as Reinforcers. Scottsdale, AZ.

Johnson, M.W. & Bickel, W.K. (2001). Matching law analysis on police motor vehicle drug searches. Poster presented at the 109th Annual Meeting of the American Psychological Association. San Francisco, CA.

Johnson, M.W. & Bickel, W.K. (2001). A within-subject comparison of real and hypothetical rewards in delay discounting research. Poster presented at the Annual Convention of the Association for Behavior Analysis. New Orleans, LA.

Giordano, L.A., Bickel, W.K. & Johnson, M.W. (2001). Differences in discounting and demand for cigarettes and money after a brief period of abstinence. Paper presented at the Annual Convention of the Association for Behavior Analysis. New Orleans, LA.

Bickel, W.K, Giordano, L.A., & Johnson, M.W. (2001). Reframing behavioral mechanisms with behavioral economics. Paper presented at the 109th Annual Meeting of the American Psychological Association. San Francisco, CA.

Baker, F., Bickel, W.K. & Johnson, M.W. (2001). Delay discounting of money, cigarettes, and health in cigarette smokers: A comprehensive study. Poster presented at the Annual Meeting of the College on Problems of Drug Dependence. Scottsdale, AZ.

Johnson, M.W. & Bickel, W.K. (2002). Risk sensitive foraging in the drug-dependent. Poster presented at the 110th Annual Meeting of the American Psychological Association. Chicago, IL.

Johnson, M.W., Baker, F., & Bickel, W.K (2002). Delay discounting in ecstasy users. Poster presented at the Annual Convention of the Association for Behavior Analysis. Toronto, Ontario Canada.

Johnson, M.W., Baker, F., & Bickel, W.K (2002). Delay discounting in ecstasy users. Paper presented at the 64th Annual Scientific Meeting of the College on Problems of Drug Dependence. Quebec City, Quebec, Canada.

Yi, R., Baker, F., Johnson, M.W., & Bickel, W.K. (2003). Differentiating current smokers from non-smokers: Comparison of impulsivity and delay discounting measures. Poster presented at the 65th Annual Scientific Meeting of the College on Problems of Drug Dependence. Bal Harbor, FL.

Plebani Lussier, J., Higgins, S.T., Johnson, M.W., & Heil, S.H. (2003). Delay discounting in pregnant smokers: An initial examination. Poster presented at the 111th Annual Meeting of the American Psychological Association. Toronto, Ontario Canada.

Johnson, M.W. & Bickel, W.K. (2003). The relative reinforcer efficacy of cigarettes and money: A behavioral economic analysis. Poster presented at the 65th Annual Scientific Meeting of the College on Problems of Drug Dependence. Bal Harbor, FL.

Johnson, M.W. & Bickel, W.K. (2003). The behavioral economics of cigarette smoking: The concurrent presence of a substitute and an independent reinforcer. Experimental Analysis of Human Behavior Student Paper Award presented at the Annual Convention of the Association for Behavior Analysis. San Francisco, CA.

Johnson, M.W. & Bickel, W.K. (2003). Pharmacological and nonpharmacological cigarette-smoking stimuli: A behavioral economic analysis. Poster presented at the 111th Annual Meeting of the American Psychological Association. Toronto, Ontario Canada.

Johnson, M.W. & Bickel, W.K. (2003). Comparison of traditional and behavioral economic measures of relative reinforcer efficacy. Poster presented at the Society for the Quantitative Analyses of Behavior. San Francisco, CA.

Johnson, M.W. & Bickel, W.K. (2004). Replacing relative reinforcing efficacy with behavioral economic demand curves: Congruence and parsimony despite manipulation of reinforcer magnitude. Paper presented at the Annual Convention of the Association for Behavior Analysis. Boston, MA.

Johnson, M.W., Bickel, W.K, & Baker, F. (2004). Gender differences in delay discounting: Heavy, light, and nonsmokers. Paper presented at the 66th Annual Scientific Meeting of the College on Problems of Drug Dependence. San Juan, PR.

Johnson, M.W. & Bickel, W.K. (2004). Delay discounting: A reanalysis and critique of models and assessment. Paper presented at the 112th Annual Meeting of the American Psychological Association. Honolulu, HI.

Roland R. Griffiths, Patricia E. Seuss, & Johnson, M.W. (2005). Ramelteon and triazolam in humans: Behavioral effects and abuse potential. Poster presented at the Associated Professional Sleep Societies 19th Annual Meeting. Denver, CO.

Johnson, M.W., Patricia E. Seuss, & Roland R. Griffiths. (2005). Dose-effect comparison of ramelteon and triazolam: Abuse potential and behavioral effects. Poster presented at the 67th Annual Scientific Meeting of the College on Problems of Drug Dependence. Orlando, FL.

Johnson, M.W., Strain, E.C., & Griffiths, R.R. (2006). Gamma-hydroxybutyric acid (GHB) and ethanol: Comparison of behavioral, subject-rated, and observer-rated effects in subjects with histories of sedative abuse. Poster presented at the 68th Annual Scientific Meeting of the College on Problems of Drug Dependence. Scottsdale, AZ.

Johnson, M.W., Carter, L.P., Umbricht, A., & Griffiths, R.R. (2006) Clinical characterization of high dose gamma-hydroxybutyric acid (GHB) intoxication. Poster presented at the 114th Annual Meeting of the American Psychological Association. New Orleans, LA.

Johnson, M. W. & Griffiths, R. R. (2007). Effects of acute oral caffeine pretreatment on response to intravenous nicotine in stimulant users. Paper presented at the 2007 Meeting of the Behavioral Pharmacology Society, Washington, DC.

Johnson, M.W., W.K, Baker, F., Moore, B.A., Badger, G.J., Budney, A.J. (2007). Delay discounting in marijuana-dependent individuals. Paper presented at the Annual Convention of the Association for Behavior Analysis. San Diego, CA.

Johnson, M. W., Richards, W. A., Griffiths, R. R. (2007). Human hallucinogen research: Guidelines for safety. Poster presented at the 69th Annual Scientific Meeting of the College on Problems of Drug Dependence. Quebec City, Quebec, Canada.

Johnson, M. W. & Griffiths, R. R. (2007). Multiple choice procedure for drug reinforcement: Comparing different drugs. Paper presented at the 115th Annual Meeting of the American Psychological Association. San Francisco, CA.

Johnson, M. W., Richards, W. A., Griffiths, R. R. (2007). Human psilocybin research: Guidelines for safety. Paper presented at the 115th Annual Meeting of the American Psychological Association. San Francisco, CA.

McKerchar, T.L., Heil, S.H., Johnson, M.W., & Higgins, S.T. (2007). Delay discounting of various commodities by cocaine-dependent outpatients: Comparison of two equations and associated measures of discounting. Poster presented at the annual meeting of the Society for Quantitative Analyses of Behavior, San Diego, CA.

Griffiths, R.R., Johnson, M.W., Richards, W.A., & McCann, U.D. (2008). Psilocybin occasions mystical-type experiences: Dose effects. Poster presented at the 70th Annual Scientific Meeting of the College on Problems of Drug Dependence. San Juan, Puerto Rico.

Johnson, M.W. (2008). Delay discounting in marijuana-dependent individuals. Paper presented at the 3rd Annual Meeting of the Virginia Association for Behavior Analysis. Harrisonburg, VA

Johnson, M. W. & Griffiths, R. R. (2008). Linguistic analysis of psilocybin session narratives. Poster presented at the 70th Annual Scientific Meeting of the College on Problems of Drug Dependence. San Juan, Puerto Rico.

Johnson, M. W. & Griffiths, R. R. (2008). Effects of Acute Oral Caffeine on Response to Intravenous Nicotine. Poster to be presented at the 116th Annual Meeting of the American Psychological Association. Boston, MA.

E-mail contact: mwj@jhmi.edu