Luke J Chang, PhD

Luke Chang is an Assistant Professor of Psychological and Brain Sciences at Dartmouth College and directs the Computational Social Affective Neuroscience Laboratory. He completed a BA in psychology at Reed College, an MA in psychology at the New School for Social Research, and a PhD in clinical psychology and cognitive neuroscience at the University of Arizona with Alan Sanfey, PhD. Luke completed his predoctoral clinical internship training in behavioral medicine at the University of California Los Angeles and a postdoctoral fellowship at the University of Colorado Boulder under the mentorship of Tor Wager, PhD. His research program is focused on understanding the neurobiological and computational mechanisms underlying social interactions. He is actively involved in the emerging fields of social, affective, and decision neurosciences and uses advanced models to understand how we learn and make decisions in social contexts and how pain and emotions can be regulated through social interactions. When he’s not at the lab, Luke enjoys cooking, bike riding, producing music, and learning new statistical techniques and technical computing skills.


Seth Frey, PhD

Seth Frey studies human decision behavior in complex social environments, approaching computational social science from the perspectives of behavioral game theory and cognitive science. His work integrates laboratory experiments, very large behavioral datasets, and computational models. Presently, Seth is a Postdoctoral Fellow at Dartmouth College’s interdisciplinary William H. Neukom Institute for Computational Science. Before Dartmouth, he was a postdoctoral researcher at Disney Research, a part of Walt Disney Imagineering, where he applied his expertise to both theoretical and practical questions about user-generated content. During that time he was also a Lecturer at the Swiss Federal Institute of Technology (ETH Zürich). In 2013, he earned a Ph.D. in Cognitive Science and Informatics at Indiana University. He earned a B.A. in Cognitive Science from the University of California at Berkeley in 2004.

Pin-Hao Andy Chen, PhD

Andy completed a M.S. in clinical psychology at National Taiwan University, and a Ph.D. in cognitive neuroscience at Dartmouth College. One of his research lines is using brain-imaging method to develop effective self-regulatory improvement techniques. A separate line of his research is to understand the acculturation processes within immigrants using a brain-as-predictor approach. Extending from his research on acculturation, he will start his new research on how culture influences social interaction and symptom expression using a computational approach.

Graduate Students

Eshin Jolly

Eshin graduated with a BA from the University of Rochester where he studied the origins of conceptual knowledge with Professors Jessica Cantlon and Brad Mahon. After graduating, he spent two years as a research assistant and lab manager at Harvard with Professor Jason Mitchell, studying mental state inference and social cognitive changes in older adults. At Dartmouth his research involves the application of statistical models to the study of social perception. Specifically, he is interested in understanding predictive inferences based on behavior and animacy, and broadly, the cognitive and neural computations we employ in service of detecting and connecting with other agents. In his free time Eshin can be found writing/playing music, falling down some rabbit-hole of statistics or intensely "studying" craft beer, the last of which is often informs the first two.

Daisy Burr

Daisy graduated with a BA from Sarah Lawrence College with a concentration in Psychology and Neuroscience. During this time, she worked as a research assistant for Dr. Sarah Lisanby in the Division of Brain Stimulation and Therapeutic Modulation at Columbia University. Daisy then received her MA in Experimental Psychology from the New School for Social Research, where she worked with Dr. Marcel Kinsbourne and Dr. Wendy D’Andrea studying the psychophysiological correlates of boredom and anxiety. After this, Daisy worked as a research assistant for Dr. Kevin Ochsner at Columbia University where she coordinated fMRI and behavioral studies investigating emotion regulation across the lifespan. At Dartmouth, Daisy is interested in applying computational approaches to understand the motivational constructs of spontaneous and instructed emotion regulation.

Jin Hyun Cheong

Jin graduated from Princeton University with a BA in Psychology and certificates in Neuroscience and Finance. After graduation, he worked as a research assistant and lab manager for Professor Matthew Botvinick at the Princeton Neuroscience Institute, where his research involved investigating the computational and neural foundations of human decision making and planning. At Dartmouth, he is interested in applying computational, behavioral, and neuroimaging methods to investigate how emotions and social cognition influence people’s economic choices and behavior. His non-academic life involves cycling, snowboarding, and cooking spicy food.

Emma Templeton

Emma graduated from Harvard, where she worked with Jason Mitchell and Diana Tamir. After graduation, Emma worked as the lab manager in Jamil Zaki's Stanford Social Neuroscience Lab. Here at Dartmouth, Emma works with both Thalia Wheatley (primary advisor) and Luke Chang. Emma is personally and scientifically interested in figuring out what makes conversation "good." That is, what features of an individual, a dyad, and the conversation itself best predict when people feel connected to each other? Outside of the lab, Emma enjoys organized activities, organizing activities, and DiGiorno pizza.

Kristina Rapuano

Kristina received her BS from The Pennsylvania State University in 2010 where she studied psychology, neuroscience, and biology. She subsequently joined the Laboratory of Brain and Cognition at the NIH, where she worked with Alex Martin and W. Kyle Simmons investigating the neural correlates of food reward and gustation in obese and healthy-weight individuals. At Dartmouth, Kristina is interested in applying computational approaches to understand individual differences in affective responses to naturalistic stimuli, and how these responses promote appetitive behaviors across a variety of reward domains. During her PhD, she additionally spent time working with Morten Kringelbach in the Hedonia Lab where she examined how altered states of consciousness influence global brain dynamics. In her free time, Kristina enjoys traveling, learning new languages, and running on trails.

Jeroen van Baar

Jeroen got his BSc from University College Utrecht and MSc in cognitive neuroscience from Utrecht University. As a graduate student at the Donders Institute for Brain, Cognition and Behavior in Nijmegen, the Netherlands, he attempts to figure out why people are nice to each other. Which psychological and neural processes allow us to incorporate others’ welfare in our decision-making? Under supervision of prof. Alan Sanfey, he hopes to graduate in the spring of 2018. In Spring 2017, Jeroen was lucky enough to spend several months in the COSANlab to work on two collaborative projects. Meanwhile, he got to know Hanover as an inspiring, if somewhat sleepy, academic town. Back in the Netherlands Jeroen will resume his twin roles of amateur guitar player in cover/party band ‘Populist’ and carefree urban bicycle chauffeur.

Xiaoxue Gao

Xiaoxue got her Bachelor’s degree of Biological Science from Shandong University, China. With a strong enthusiasm for understanding human emotions and decision-making, she then changed her major from Biology to Cognitive neuroscience in 2014 and began to work as a graduate student at the School of Psychological and Cognitive Sciences, Peking University, China. Working with Professor Xiaolin Zhou, Xiaoxue’s research interest lies on the computational and neural mechanisms underlying complex social emotions (e.g., gratitude, guilt) and social decision-making. Xiaoxue is visiting the COSANlab for three months to learn knowledge and techniques on computational modeling and neuroimaging. In her free time, she loves to play table tennis.

Bryan Gonzalez

Bryan received his BA and MA in psychology from NYU. After a stint exploring potential career paths in creative industries, his interest in research began in Professor Geraldine Downey's lab at Columbia University studying stereotype threat. He later spent time at Weill Cornell, conducting sleep research under the late Arthur Speilman, MD. He went on to join the psychiatry department at NYU Langone as a senior research coordinator for Charles Marmar, MD. In collaboration with Amit Etkin MD,PhD at Stanford, his research efforts were aimed at probing biological markers of Post-Traumatic Stress Disorder in military veterans. At Dartmouth, Bryan is primarily interested in reinforcement learning models of emotion in the brain and neural instantiations of Markov Decision Processes. In his free time, he loves running, live music, and curling up with his cat, "Puppy".

Research Assistants

Arati Gangadharan

Arati is an undergraduate student at Dartmouth College studying neuroscience and public policy. After graduating, she hopes to attend medical school and continue exploring public mental health practice and policy. Arati is also interested in dance and music.

Maryam Iqbal

Maryam Iqbal is an undergraduate student at Dartmouth College planning to major in neuroscience, computer science, or cognitive science. She aspires to go to medical school in the future. In her free time, Maryam enjoys playing piano, socializing, cooking, and applying henna.

Taylor Morrell

Taylor is an undergraduate student at Dartmouth College studying government and neuroscience, with an interest in consumer decision-making, UX, neuroeconomics, emotion, and social norms. In his free time, he enjoys freestyle skiing, traveling, and mountaineering.

Sushmita Sadhukha

Sushmita is a Dartmouth undergraduate studying philosophy and neuroscience with an interest in understanding the theoretical/social-cognitive nature of moral selfhood. She spends her free time reading, flying kites and contemplating whether we really matter in the cosmos. After graduation, she hopes to continue studying social neuroscience and one day reach the mountaintop.

Zainab Molani

Zainab is a Dartmouth undergraduate student in her junior year. She is majoring in neuroscience and cognitive science and hopes to continue on to medical school after graduation. She is particularly interested in neurology, pediatrics, and general surgery. Zainab is also on the varsity squash team and volunteers with various programs for children across campus. In her free time she enjoys cooking, listening to music, and spending time with friends.

Emma Gustafson

Emma is in her sophomore year at Dartmouth College, studying computer science and neuroscience. She is interested in computational models of cognition, machine learning, and the intersection of neuroscience and genetics. In her free time, Emma loves being outdoors, painting, playing the saxophone, and training for triathlons.

Samantha Milne

Samantha is a Dartmouth College undergraduate student studying cognitive science and human-centered design. She has focused her studies on consumer decision-making and is interested in exploring how decisions are influenced by online and offline social networks. In her free time, Samantha enjoys alpine skiing, running, spending time with family and friends and traveling.

Coding Companion


Django is a professional coding assistant and makes sure that Luke remembers to eat and exercise. He has a habit of getting into trouble despite graduating summa cum laude from obedience school.

Lab Alumni

Sunhae Sul, PhD

Sunhae was a former postdoc in the lab and is now an assistant professor at Pusan National University in Korea.

Meredith Geaghan-Breiner

Meredith was a former RA

Hirsh Elhence

Hirsh was a former RA and now works at Collective Health.

Eric Andrews, MA

Eric was a former RA and is now a lab manager at University of Denver

Jenna Perry

Jenna was a summer intern.

Hakeem Brooks

Hakeem was a summer intern

Sawyer Brooks

Sawyer was a summer intern

Aimee Sung

Aimee was a former RA

Andrew Boghossian

Andrew was a former RA

Sam Greydanus

Sam was a former RA and now works at CERN

Antonia Hoidal

Antonia was a former lab manager and is now completing a premed postbac program at the University of Colorado

Mara Stewart

Mara was a former RA