Note: Email Dr. Worthy ( if you are an undergraduate who would like research experience working on online studies.

Google scholar page is here

Cornwall, A.C., Davis, T., Byrne, K.A., & Worthy, D.A. (in press).  Effects of categorical and numerical feedback on category learning.  Cognition.  data and code  .pdf

Don, H.J., Davis, T., Ray, K.L., McMahon, M.C., Cornwall, A.C., Schnyer, D.M., & Worthy, D.A. (2022). Neural representation of gain-loss frequency in older and younger adults.  PsyArXiv (revised version accepted at Neurobiology of Aging) .pdf  link

Don, H.J., & Worthy, D.A. (in press).  Frequency effects in action versus value learning.  Journal of Experimental Psychology: Learning, Memory, and Cognition.  .pdf

Don, H.J., Worthy, D.A., & Livesey, E. (in press). Hearing hooves, thinking zebras.  A review of the inverse base-rate effect.  Psychonomic Bulletin & Review. .pdf

Davis, T., LaCour, M., Goldwater, M., Hughes, B., Ireland, M.E., Worthy, D.A., Gaylord, N., & Van Allen, J. (2020). Communicating about diseases that originate in animals.  Lessons from the psychology of inductive reasoning.  Behavioral Science & Policy. .pdf

Imburgio, M.J., Ballard, H.K., Cornwall, A.C., Worthy, D.A., Bernard, J.A., & Orr, J.M. (2021). Preliminary effects of prefrontal tDCS on dopamine-mediated behavior and psychophysiology.  Behavioral Brain Research, 402, 113091. .pdf

McMahon, M., Malneedi, Y., Worthy, D.A., & Schnyer, D. (2020). Rest-activity rhythms and white matter microstructure across the lifespan.  Sleep. .pdf

Davis, T., Ireland, M.E., Van Allen, J., & Worthy, D.A. (2020). Zoonotic realism, computational cognitive science and pandemic prevention.  Animal Sentience, 30(23). .pdf target article

Don, H.J., Davis, T., Ray, K.L., McMahon, M.C., Cornwall, A.C., Schnyer, D.M., && Worthy, D.A. (under review). Neural representation of gain-loss frequency in older and younger adults.  PsyArXiv .pdf  link

Byrne, K. A. Cornwall, A.C., Willis, H.C, Peters, C., Phan, D. & Worthy, D.A. (2020). Acute stress enhances tolerance of uncertainty during decision-making. Cognition, 193, 104042.  .pdf   data

Shi, Y., Du, Jing, & Worthy, D.A. (2020). The impact of engineering information formats on learning and execution of construction operations: A virtual reality pipe maintenance experiment.  Automation in Construction, 119, 103367.  .pdf

Don, H.J., Otto, A.R., Cornwall, A.R., Davis, T., & Worthy, D.A. (2019). Learning reward frequency over reward probability: A tale of two learning rules. Cognition. .pdf  data/code

Joyner, K.J., Bowyer, C.B., Yancey, J.R., Venables, N.C., Foell, J., Worthy, D.A., Hajcak, G., Bartholow, B.D., & Patrick, C.J. (2019).  Blunted reward sensitivity and trait disinhibition interact to predict substance use problems.  Clinical Psychological Science, 7(5), 1109-1124. .pdf

Byrne, K.A., Cornwall, A.C., & Worthy, D.A. (2019).  Acute stress improves long-term reward maximization in decision-making under uncertainty.  Brain & Cognition, 133, 84-93. .pdf

Byrne, K.A., & Worthy, D.A.. (in press).  Examining the link between reward and response inhibition in individuals with substance use problems.  Drug and Alcohol Dependence. .pdf

Byrne, K.A., Otto, A.R., Pang, B., Patrick, C.J., & Worthy, D.A.. (2019).  Substance use is associated with reduced devaluation sensitivity.  Cognitive, Affective, & Behavioral Neuroscience, 194, 518-525. data .pdf

O’Bryan, S., Worthy, D.A., Livesey, E., & Davis, T. (2018).  Model-based fMRI reveals dissimilarity processes underlying base rate neglect.  eLife 2018;7:e36395. openneuro  osf  .pdf

Cornwall, A.C., Byrne, K.A., & Worthy, D.A. (2018). Gender differences in preference for reward frequency versus reward magnitude in decision-making under uncertainty. Personality and Individual Differences, 135, 40-44. data .pdf

Smayda, K.E., Worthy, D.A., & Chandrasekaran, B. (2018).  Better late than never (or early): Late music training enhances decision-making.  Psychology of Music, 46(5), 734-748.  .pdf

Pang, B., Blanco, N.J., Maddox, W.T., & Worthy, D.A. (2017). To Not Settle for Small Losses: Evidence for an Ecological Aspiration Level of Zero in Dynamic Decision-Making.  Psychonomic Bulletin and Review, 24(2), 536-546.pdf

Byrne, K.A., & Worthy, D.A. (2016).  Toward a Mechanistic Account of Gender Differences in Reward-Based Decision-Making.  Journal of Neuroscience, Psychology, and Economics, 9, 157-168.  .pdf

Byrne, K.A.*, Davis, T., & Worthy, D.A. (2016).  Dopaminergic genetic polymorphisms predict rule-based category-learning.  Journal of Cognitive Neuroscience, 28, 959-970.pdf

Worthy, D.A., Davis, T., Gorlick, M.A., Cooper, J.A., Bakkour, A., Mumford, J., Poldrack, R.A., & Maddox, W.T. (2016).  Neural correlates of state-based decision-making in younger and older adults.  Neuroimage, 130, 13-23. .pdf

Byrne, K.A.*, Patrick, C.J., & Worthy, D.A. (2016).  Striatal dopamine, externalizing proneness, and substance abuse.  Effects of wanting and learning during reward-based decision-making.  Clinical Psychological Science, 4, 760-774.  .pdf

Byrne, K.A.*, Norris, D.D.**, & Worthy, D.A. (2016).  Dopamine, depressive symptoms, and decision-making: The relationship between spontaneous eyeblink rate, and depressive symptoms predicts Iowa Gambling Task performance.  Cognitive, Affective, and Behavioral Neuroscience, 16, 23-36. *Awarded Best Article in Cognitive, Affective, and Behavioral Neuroscience for 2016.  .pdf

Byrne, K.A.*, Tibbett, T.P., Carter-Sowell, A.R., Laserna, L.N.**, & Worthy, D.A. (2016).  Ostracism reduces reliance on poor advice from others during decision-making.  Journal of Behavioral Decision Making, 29, 409-418.  .pdf

Cooper, J.A.*, Worthy, D.A., & Maddox, W.T. (2016).  Information about foregone rewards impedes dynamic decision-making in older adults.  Aging, Neuropsychology, & Cognition, 23, 103-116.  .pdf

Patrick, C.J., Foell, J., Venables, N.C., & Worthy, D.A. (2016). Substance use disorders as externalizing outcomes.  In The Oxford Handbook of Externalizing Spectrum Disorders, Oxford University Press.  .pdf

Cooper, J.A.*, Worthy, D.A., & Maddox, W.T. (2015).  Chronic motivational state interacts with task reward structure in dynamic decision-making.  Cognitive Psychology, 83, 40-53.pdf

Steingroever, H., Fridberg, D. J., Horstmann, A., Kumari, V., Kjome, K. L., Lane, S.D., Maia, T.V., McClelland, J.L., Pachur, T., Premkumar, P., Stout, J., Wetzels, R., Wood,  S., Worthy, Darrell A., Wagenmakers, E.J. (2015).  Psychology Data from Healthy Participants Performing the Iowa Gambling Task: A “Many Labs” Collaboration.  Journal of Open Psychology Data, 3, e5.  .pdf

Byrne, K.*, Silasi-Mansat, C.*, & Worthy, D.A. (2015).  Who chokes under pressure? The big five personality traits and decision-making under pressure.  Personality and Individual Differences, 74, 22-28.  .pdf

Gorlick, M.A., Worthy, D.A., Kopnik, V.S., McGeary, J.E., Beevers, C.G., & Maddox, W.T. (2015).  DRD4 7 repeat carriers show enhanced attention to high-priority items in the environment.  Journal of Cognitive Neuroscience, 27, 509-521(Equal contribution from the first two authors).  .pdf

Worthy, D.A., Otto A.R., Doll, B.B., Byrne, K.A.*, & Maddox, W.T. (2015).  Older adults are highly responsive to recent events during decision-making.  Decision, 2, 27-38.  .pdf

Pang, B.*, Otto, A.R., & Worthy, D.A. (2015).  Self-control moderates decision-making behavior when minimizing losses versus maximizing gains. Journal of Behavioral Decision-Making, 28, 176-187.pdf

Byrne, K.A.*, & Worthy, D.A. (2015). Gender differences in reward sensitivity and information processing during decision-making.  Journal of Risk and Uncertainty, 50, 55-71.  .pdf

Samanez-Larkin, G.R., Worthy, D.A., Mata, R., McClure, S.M., & Knutson, B. (2014).  Adult age differences in frontostriatal representation of prediction error but not reward outcome.  Cognitive, Affective, & Behavioral Neuroscience, 14, 672-682 .pdf

Worthy, D.A. & Byrne, K.A,* & Fields, S. (2014).  Effects of emotion on prospection during decision-making.  Frontiers in Psychology, 5:591.  .pdf

Worthy, D.A., Cooper, J.A.*, Byrne, K.A.*, Gorlick, M.A., & Maddox, W.T. (2014).  State-based versus reward-based motivation in younger and older adults. Cognitive, Affective, & Behavioral Neuroscience, 14, 1208-1220.  .pdf

Cooper, J.A.*, Gorlick, M.A., Denny, T., Worthy, D.A., Beevers, C.G., & Maddox, W.T. (2014).  Training attention improves decision-making in individuals with elevated self-reported depressives symptoms. Cognitive, Affective, & Behavioral Neuroscience, 14, 729-741.  .pdf

Worthy, D.A., & Maddox, W.T. (2014).  A Comparison Model of Reinforcement-Learning and Win-Stay-Lose-Shift Decision-Making Processes: A Tribute to W.K. Estes.  Journal of Mathematical Psychology, 41-49 (Special issue honoring W.K. Estes).  .pdf

Worthy, D.A., Pang, B.*, & Byrne, K.A.* (2013).  Decomposing the roles of perseveration and expected value representation in models of the Iowa Gambling Task.  Frontiers in Human Neuroscience, 4:640 (Special Topic – IGT: 20 Years After). .pdf

Cooper, J.A.*, Worthy, D.A., Gorlick, M.A., & Maddox, W.T. (2013).  Scaffolding across the lifespan in history dependent decision-making.  Psychology and Aging, 28, 505-514. .pdf

Byrne, K.*, & Worthy, D.A. (2013).  Do narcissists make better decisions? An investigation of narcissism and dynamic decision-making performance.  Personality and Individual Differences, 55, 112-117.  .pdf

Worthy, D.A., Markman, A.B., & Maddox, W.T. (2013). Feedback timing and stimulus offset effects in perceptual category learning.  Brain and Cognition, 81, 283-293.  .pdf

Worthy, D.A., Hawthorne, M.A. & Otto, A.R. (2013).  Heterogeneity of strategy use in the Iowa Gambling Task: A comparison of win-stay-lose-shift and reinforcement learning models.  Psychonomic Bulletin and Review, 20, 364-371.  .pdf

Beevers, C.G., Worthy, D.A., Gorlick, M.A., Nix, B., Chotibut, T., & Maddox, W.T. (2013).  Influence of depression symptoms on history independent reward and punishment processing.  Psychiatry Research, 207, 53-60.  .pdf

Maddox, W.T., Gorlick, M.A., Worthy, D.A., & Beevers, C.G. (2012).  Depressive symptoms enhance loss-minimization but attenuate gain-maximization in history-dependent decision-making.  Cognition, 125, 118-124.  .pdf

Worthy, D.A., Otto, A.R., & Maddox, W.T. (2012). Working-Memory Load and Temporal Myopia in Dynamic Decision-Making. Journal of Experimental Psychology: Learning, Memory, & Cognition. 38, 1640-1658.  .pdf

Worthy, D.A., & Maddox, W.T. (2012). Age-Based Differences in Strategy-use in Choice Tasks.  Frontiers in Human Neuroscience, 5(145), 1-10.  .pdf

Worthy, D.A., Gorlick, M.A., Pacheco, J.L., Schnyer, D.M., & Maddox, W.T. (2011). With Age Comes Wisdom: Decision-Making in Younger and Older Adults.  Psychological Science, 22, 1375-1380.   .pdf

Worthy, D.A., Brez, C.C., Markman, A.B., & Maddox, W.T. (2011).  Motivational Influences on Cognitive Performance in Children: Focus Over Fit. Journal of Cognition and Development, 12, 103-119.  .pdf

Worthy, D.A., Markman, A.B., & Maddox, W.T. (2009). Choking and Excelling Under Pressure in Experienced Classifiers. Attention, Perception and Psychophysics, 71, 924-935.  .pdf

Worthy, D.A., Markman, A.B., & Maddox, W.T. (2009). What is Pressure? Evidence for Social Pressure as a Type of Regulatory Focus. Psychonomic Bulletin and Review, 16, 344-349. (5-Year Impact Factor: 3.306).  .pdf

Worthy, D.A., Markman, A.B., & Maddox, W.T. (2009). Choking and Excelling at the Free Throw Line. International Journal of Creativity and Problem Solving, 19, 53-58. (5-Year Impact Factor Not Yet Available).   .pdf

Worthy, D.A., Maddox, W.T., & Markman, A.B. (2008). Ratio and Difference Comparisons of Expected Reward in Decision Making Tasks. Memory and Cognition, 36, 1460-1469.  .pdf

Worthy, D.A., Maddox, W.T., & Markman, A.B. (2007). Regulatory Fit Effects in a Choice Task.  Psychonomic Bulletin and Review, 14, 1125-1132.  .pdf

Markman, A.B., Maddox, W.T., Worthy, D.A., & Baldwin, G.C. (2007). Using Regulatory Focus to Explore Implicit and Explicit Processing.  Journal of Consciousness Studies, 14, 132-155.  .pdf

Markman, A.B., Maddox, W.T., & Worthy, D.A. (2006). Choking and Excelling Under Pressure. Psychological Science 17(11), 944-948. (5-Year Impact Factor: 6.501).   .pdf