Principal Investigator

Amitai Shenhav is an Assistant Professor in the Department of Cognitive, Linguistic, & Psychological Sciences at Brown University, and is also affiliated with the Brown Institute for Brain Science. He earned a B.A. in Cognitive Science from UC Berkeley in 2005 and a Ph.D. in Psychology from Harvard University in 2012. After completing his graduate work, he was a C.V. Starr Postdoctoral Fellow at Princeton University before arriving at Brown.

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Lab Manager


Maisy Tarlow completed a B.S. in Cognitive Science, with a specialization in Computing, at the University of California, Los Angeles. During her time there, Maisy completed an honors thesis in the Multisensory Perception Lab, and was a research assistant in the Social Cognitive Neuroscience Lab. Maisy is now interested in using an interdisciplinary approach to study the neural underpinnings of affect and decision-making processes. In her free time, Maisy likes to cook, go hiking with friends, listen to music, and do KenKen puzzles (like Sudoku but better!).



Carolyn Dean Wolf got her B.A. in Philosophy-Neuroscience-Psychology from Washington University in St. Louis, where she worked in the Cognitive Control and Psychopathology Lab with Todd Braver. Carolyn is currently interested in the neural mechanisms of decision-making and reward processing, including the cognitive control systems underlying motivation and goal maintenance. Outside of research, Carolyn loves biking, dancing, baking (especially anything with chocolate), and traveling.


Postdoctoral Fellows


Romy Frömer completed her undergraduate, graduate, and postdoctoral training at Humboldt-Universität zu Berlin. Working with Werner Sommer, her dissertation research examined mechanisms of cognitive control in the motor domain. After receiving her PhD, Romy performed postdoctoral research with Rasha Abdel Rahman, focusing on the role of predictions and uncertainty in perception. She also performed research with Nick Yeung and Markus Ullsperger that explored the intersection of metacognition (error monitoring and confidence) and feedback-based learning in the motor domain. In her free time, Romy likes making music (e.g. choir singing) and cooking for friends. Her functioning critically depends on the availability of coffee.

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Debbie Yee received her B.S. in Brain and Cognitive Sciences at MIT in 2011, and earned her Ph.D. in Psychological & Brain Sciences at Washington University in St. Louis in 2019. She is interested in integrating computational, neuroimaging, and psychopharmacological approaches to investigate cognitive and neural mechanisms of motivational/affective processes and their interaction with cognitive control and decision-making across the human lifespan (e.g., healthy aging) and in mental disorders. In her spare time, she enjoys running half marathons, hiking, and both consuming and making interesting flavors of artisanal ice cream.

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Graduate Students


Harrison Ritz completed his BSc. in Psychology at Queen’s University (Kingston, ON), and his MSc. in Psychology at the University of Western Ontario (London, ON), both while studying with Dr. Ingrid Johnsrude. His undergraduate and masters’ theses focused on the neural correlates of attentional control during auditory and speech perception. His current research interests are broadly about characterizing neural systems that dynamically control decision-making in noisy, unstable environments. In his free time, he likes watching films, distance running, batch cooking, and creating or listening to music.

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Jason Leng got his BSc. in Optical Engineering at Zhejiang University (Hangzhou, China), and his MASc. in Electrical and Computer Engineering at Queen’s University (Kingston, ON). He then worked on the Canadian Biomarker Integration Network in Depression program with Dr. Sidney Kennedy, focusing on the dysfunction of reward system in depression and its association with antidepressant treatment outcome. In his free time, he likes reading science fiction and history books, cooking Chinese food, and playing board games.



Mahalia Prater Fahey completed her BA in Cognitive Science at Pomona College (Claremont, CA). She comes to Brown from Harvard University where she recently worked as a research assistant on the Human Connectome Project in Development. She is broadly interested in the development of decision making strategies and the neural and environmental factors that shape these strategies. Outside of research Mahalia can be found cooking, at the beach, or Skyping with her dog in California.



Ivan Grahek completed his undergraduate studies in psychology at Belgrade University. He is currently a PhD student at Ghent University working with Ernst Koster and Ruth Krebs. He is a visiting scholar at Brown during Fall 2018. His research is focused on the relationship between cognitive control and motivation in healthy and depressed individuals. In his free time he enjoys reading, watching films, and spending time by the Adriatic coast whenever possible.


If you are interested in joining the lab as a graduate student, you should apply through the Cognitive, Linguistic and Psychological Sciences Department

Undergraduate Research Assistants


Helen Cho a senior concentrating in Computer Science and Psychology. She is interested in decision-making and exploring the interaction of computer science and cognitive science. She edits for a few magazines on campus and is an avid true crime podcast listener. 


Natalie Knowles is a senior double concentrating in Psychology and Economics. She’s interested in behavioral economics, particularly how psychological and cognitive biases affect consumer decisions. Outside of lab, she enjoys photography, interior design, and swimming. 


Akari Izumi is a junior at Brown potentially concentrating in Cognitive Neuroscience. She is most interested in memory, decision making and cognitive control. Outside of class or the lab, she loves playing piano and being involved with Brown’s student theatre.


Allegra Friedman is a junior intending to concentrate in history. She is particularly interested in studying the relationship between choice anxiety and psychopathology. In her free time, she enjoys traveling, knitting, and weight-lifting.


Felicia Renelus is a junior who plans on concentrating in Cognitive Science. She is most interested in understanding the interaction between decision-making and consumer behavior. Outside of class, she spends her time competing for Brown’s Track & Field team.


Linda Zhang is a junior at Brown, most likely concentrating in Cognitive Neuroscience or CogSci. She is interested in the cognitive control of the brain and also the linguistics aspects of brain function. She enjoys art and watching movies, and is currently learning French. 


Savannah Doelfel is a sophomore intending to concentrate in Neuroscience. She is interested in the intersection of decision-making science with government and law. Outside of the lab, she is part of the Girl Up Club, Undergraduate Council of Students, and Opera Productions Company.


Selin Baydar is a sophomore concentrating in Behavioral Decision Science and Cognitive Neuroscience with Economics. She is interested in the intersection of decision making with consumer behavior and affect. She likes painting and is in Women in Business, Best Buddies, Meiklejohn, and Fashion at Brown.


Gloria Feng is a senior concentrating in Behavioral Decision Sciences. She is interested in exploring social comparison and information seeking, with a focus on how affect motivates seeking behavior. In her free time, she enjoys rock climbing and listening to sped-up readings of audiobooks.


We are always looking for undergraduates who are scientifically curious, motivated, and hard-working to get involved in our ongoing research projects (and/or to eventually develop their own projects). If you fit that description and are interested in joining the lab, please contact our lab managers or Dr. Shenhav


  • Ailita Eddy - Undergrad RA

  • Alli Loynd - Undergrad RA; Currently a product researcher for Shiseido Global Innovation Center in Yokohama, Japan

  • Anna Xu - Undergrad RA; Currently a Data Analyst in Ted Satterthwaite's lab at UPenn

  • Ayenna Cagaanan - Undergrad RA

  • Cora Ordway - Undergrad RA

  • Cornelius Braun - Visiting RA

  • Hattie Xu - Undergrad RA

  • Isabel Shaw - Undergrad RA

  • Kia Sadahiro - Undergrad RA

  • Liz Cory - Undergrad RA; Currently a clinical research coordinator for Andrew Nierenberg at MGH's Dauten Center for Bipolar Innovation

  • Michelle Basta - Undergrad RA

  • Milena Rmus - Undergrad RA; Currently a Lab Manager in Diana Tamir's lab at Princeton

  • Natalie Cardoso - Summer Intern

  • Paulina Sengeridis - Undergrad RA; Currently a Master's student in Clinical and Therapeutic Neuroscience in the department of Psychiatry at the University of Oxford

  • Wasita Mahaphanit - Undergrad RA; Currently the Lab Manager in Michael Frank's lab at Brown

  • William McNelis - Undergrad RA

  • Zhuo Chen - Visiting RA