The Lab

Primary Investigator

Ian Krajbich

Ian is an Associate Professor in the Departments of Psychology and Economics at OSU. Before moving to Columbus, Ian was a postdoctoral scholar at the University of Zurich, with Ernst Fehr. Prior to that, Ian spent ten years at Caltech, earning his Ph.D. in Behavioral and Social Neuroscience with Antonio Rangel, Colin Camerer, Ralph Adolphs and John Ledyard, his M.Sc. in Social Science, and his B.Sc. in Physics and Business Economics & Management.



Wenjia (Joyce) Zhao

Wenjia Joyce Zhao is a postdoctoral researcher in the Psychology Department. Together with Ian Krajbich and Brandon Turner, she uses computational modeling and process-tracing methods to understand cognitive processes underlying decision making. She received a B.Sc. in Psychology and Economics from Tsinghua University, an M.Sc. in Psychologic from the University of Oxford, and an M.A. in Statistics from the University of Pennsylvania. She completed her Ph.D in the computational behavioral science lab at the University of Pennsylvania.



Graduate Students

Nitisha Desai

Nitisha Desai

Nitisha is a PhD student in the Department of Psychology. She received her undergraduate degree from UNC-Chapel Hill. She is interested in modeling the decision-making processes, especially moral decision making.

Blair Shevlin

Blair Shevlin

Blair is a PhD student in Decision Psychology. Blair received his Master’s degree in Experimental Psychology from Towson University where he conducted research related to reasoning, risk comprehension, and traffic safety. His research interests involve modeling value-based decision making and theories of valuation. He is currently working on projects related to modeling the impact of various factors on the decision process, including: explicit value cues, options to opt-out, and aversive options.


Xiaozhi (Taro) Yang

Xiaozhi (Taro) Yang is a Graduate student in Decision Psychology. She received her undergraduate degree in Psychology and Statistics from University of Illinois at Urbana-Champaign. She is interested in using computational modeling to capture human decision making, especially drawing perspectives from social cognition.

Minhee Yoo

Minhee is a PhD student in the Decision Psychology program. She received her Master’s degree in Behavioral and Cognitive Neuroscience from Korea University. She is interested in modeling value-based decision making.

Miruna Cotet

Image result for miruna cotet

Miruna is a PhD student in the Decision Psychology program.  She received her Master’s degree in Neuroeconomics at Maastricht University.  She is interested in social and strategic decision making.


Former Lab Members


Aidan Makwana, Nestle Corporation

Ph.D. Students

Arkady Konovalov, Postdoc at the University of Zurich (Switzerland)

James Wei Chen, Faculty at National Taiwan University 

Rachael Gwinn, Decision Scientist at Early Warning

Stephanie Smith, Postdoc at UCLA Anderson School of Management