Mikhail N. Koffarnus

ORCID: 0000-0002-7923-7734
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About
Contact & Profiles
Research Areas
  • Behavioral Health and Interventions
  • Substance Abuse Treatment and Outcomes
  • Decision-Making and Behavioral Economics
  • Neurotransmitter Receptor Influence on Behavior
  • Smoking Behavior and Cessation
  • Obesity, Physical Activity, Diet
  • Neural and Behavioral Psychology Studies
  • Opioid Use Disorder Treatment
  • Behavioral and Psychological Studies
  • Mental Health Research Topics
  • Attention Deficit Hyperactivity Disorder
  • Economic and Environmental Valuation
  • Consumer Market Behavior and Pricing
  • HIV, Drug Use, Sexual Risk
  • Cognitive Abilities and Testing
  • Gambling Behavior and Treatments
  • Receptor Mechanisms and Signaling
  • Homelessness and Social Issues
  • Statistical Methods and Bayesian Inference
  • Obsessive-Compulsive Spectrum Disorders
  • Digital Mental Health Interventions
  • Neuroscience and Neuropharmacology Research
  • Statistical Methods in Clinical Trials
  • Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Gender, Labor, and Family Dynamics

University of Kentucky
2020-2025

Virginia Tech
2012-2019

Carilion Clinic
2012-2019

Biomedical Research Institute
2019

Johns Hopkins Medicine
2010-2018

Johns Hopkins University
2010-2018

University at Buffalo, State University of New York
2014

Behavioral Pharma (United States)
2011

University of Michigan–Ann Arbor
2006-2009

Michigan United
2009

Individuals who discount delayed rewards at a high rate are more likely to engage in substance abuse, overeating, or problem gambling. Such findings suggest the value of methods obtain an accurate and fast measurement that can be easily deployed variety settings. In present study, we developed evaluated 5-trial adjusting delay task, novel method obtaining less than 1 min. We hypothesized rates from task would similar correlate with lengthier have used previously, 4 known effects relating...

10.1037/a0035973 article EN Experimental and Clinical Psychopharmacology 2014-01-01

Behavioral economic demand analyses that quantify the relationship between consumption of a commodity and its price have proven useful in studying reinforcing efficacy many commodities, including drugs abuse. An exponential equation proposed by Hursh Silberberg (2008) has quantifying dissociable components intensity elasticity, but is limited as an analysis technique inability to correctly analyze values zero. We examined exponentiated version this retains all beneficial features original...

10.1037/pha0000045 article EN Experimental and Clinical Psychopharmacology 2015-01-01

Experimental assessments of demand allow the examination economic phenomena relevant to etiology, maintenance, and treatment addiction other pathologies (e.g., obesity). Although such have historically been resource intensive, development use purchase tasks-in which participants 1 or more hypothetical real commodities across a range prices-have made data collection practical increased rate scientific discovery. However, extraneous sources variability occasionally produce nonsystematic data,...

10.1037/pha0000020 article EN other-oa Experimental and Clinical Psychopharmacology 2015-07-06

The study of delay discounting, or valuation future rewards as a function delay, has contributed to understanding the behavioral economics addiction. Accurate characterization discounting can be furthered by statistical model selection given that many functions have been proposed measure rewards. present provides convenient Bayesian algorithm selects most probable among set candidate models chosen researcher. approach assigns for each individual subject. Importantly, effective 50 (ED50)...

10.1002/jeab.128 article EN Journal of the Experimental Analysis of Behavior 2014-12-30

Hypothetical rewards are commonly used in studies of laboratory-based tobacco demand. However, behavioral economic demand procedures require confirmation that the behavior elicited from real and hypothetical reward types equivalent, results attained these comparable to other accepted tasks, such as purchase task.Nineteen smokers were asked 1 week's worth cigarettes they would consume over following week either at one price incrementally increased across four weekly sessions ("real" sessions)...

10.1093/ntr/ntv154 article EN Nicotine & Tobacco Research 2015-07-17

Impulsivity is widely regarded as a multidimensional trait that encompasses two or more distinct patterns of behavior, and dopaminergic systems are implicated in the expression impulsive behavior both humans animal subjects. Impulsive choice, tendency to choose rewards associated with relatively little no delay, has been extensively studied subjects using delay-discounting tasks. Here, procedures were used assess effects receptor-selective agonists, antagonists, dopamine transporter ligands...

10.1097/fbp.0b013e3283473bcb article EN Behavioural Pharmacology 2011-06-21

Insufficient resources are associated with negative consequences including decreased valuation of future reinforcers. To determine if these effects result from scarcity, we examined the acute, abrupt changes in resource availability on delay discounting—the subjective devaluation rewards as to receipt increases. In current study, 599 individuals recruited Amazon Mechanical Turk read a narrative sudden change (positive, neutral, or negative) one's hypothetical income and completed discounting...

10.1371/journal.pone.0163051 article EN cc-by PLoS ONE 2016-09-15

Background The delivery of monetary incentives contingent on verified abstinence is an effective treatment for alcohol use disorder. However, technological barriers to accurate, frequent biochemical verification have limited the dissemination this technique. Methods In present randomized parallel trial, we employed a breathalyzer that allows remote, user‐verified collection breath sample, text messaging, and reloadable debit cards remote evaluate contingency management disorder can be...

10.1111/acer.13891 article EN cc-by-nc Alcoholism Clinical and Experimental Research 2018-10-18

There is a large unmet medical need for cocaine addiction treatments. Studies have indicated that the dopamine transporter (DAT) primary biological target of cocaine, and most drugs DAT affinity behavioral effects like those cocaine. However, analogs benztropine high show varying degrees similarity to We now report discovery analog, JHW007, with does not cocaine-like antagonizes JHW007 occupied in vivo more slowly than did had reached an apparent plateau up 270 min after injection. The...

10.1523/jneurosci.4778-04.2005 article EN cc-by-nc-sa Journal of Neuroscience 2005-02-23

Behavioral economic studies of nicotine product consumption have traditionally examined substitution between two products and rarely with more products. Increasing numbers tobacco available for commercial sale leads to possible cross-product interactions, indicating a need examine in complex arrangements that closely mirror the marketplace.The experimental marketplace (ETM) is an online store displays pictures, information, prices several Smokers were endowed account balance based on their...

10.1093/ntr/ntv230 article EN Nicotine & Tobacco Research 2015-10-15
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