Ph.D., University of Texas, Austin (2010)
Area: Cognition& Cognitive Neuroscience
Member: Institute for Neuroscience
287 Psychology Building
CV | Web | Scholar | Research Gate | Statistical Resources
I most actively update my personal/lab academic webpage here.
You will find recent papers and stats resources
You can also see my older webpage here.
PSYC 203: Elementary Statistics for Psychology
PSYC 204: Experimental Psychology
PSYC 345: Cognitive Psychology
PSYC 607: Experimental Psychology (Inferential Statistics)
PSYC 671: Experimental Design for Behavioral Scientists (Regression)
PSYC 689: Decision-Making Seminar (Spring 2012)
Short course on Bayesian Statistics (May 23-24, 2017)
My research program aims to develop a full understanding of human learning and decision-making using a computational cognitive neuroscience approach. Decision-making is a pervasive task that people must engage in on a daily basis, and many decisions have serious and long-term consequences. My goal is to examine the behavioral, computational, and neural mechanisms by which different types of decisions are made, and to also examine how a variety of different situational and dispositional factors affect learning and decision-making processes. Some of the central questions I examine are: What affects people’s ability to focus on both immediate and delayed outcomes of their decisions? How do people respond to gains and losses and to improvements or declines in the rewards they receive for their actions? What affects people’s preferences for novel choices when they are faced with a decision, and how do preferences become entrenched? What motivational, emotional and individual difference factors affect learning and decision-making? And, what types of neural systems mediate different forms of learning and to what degree is knowledge available for explicit, verbalizable representation? In empirically examining these issues I attempt to focus on addressing the theoretical issues that are relevant to Cognitive Psychology and to the field of Psychological Science as a whole, and to also be mindful of the applied relevance and implications of my research.
- Pending: Principal Investigator (Co-PI: W. Todd Maddox).NIMH R01, PAR-11-337; Total Direct Costs: $1,442,313. Impact Score: 20; Percentile: 6th. A Computational Neuroscience Approach to Frontal Compensation in Decision-Making (Revision submitted February 5, 2013).
RECENT AND SELECT PUBLICATIONS
For a full publication list and access to reprints please see my lab’s webpage
Worthy, D.A., & Maddox, W.T. (in press). A Comparison Model of Reinforcement-Learning and Win-Stay-Lose-Shift Decision-Making Processes: A Tribute to W.K. Estes. Journal of Mathematical Psychology. (Special issue honoring W.K. Estes).
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).
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.
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.
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.
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.
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.
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.
Worthy, D.A., Maddox, W.T., & Markman, A.B. (2007). Regulatory Fit Effects in a Choice Task. Psychonomic Bulletin and Review, 14, 1125-1132.
Markman, A.B., Maddox, W.T., & Worthy, D.A. (2006). Choking and Excelling Under Pressure. Psychological Science 17(11), 944-948.