Michael J. Frank
Matthew Nassar
Ph.D., Neuroscience, 2012
University of Pennsylvania | Philadelphia, Pennsylvania
Research Interests
I am interested in how neuromodulators might allow cortical circuitry to facilitate different behavioral regimes in order to allow optimization across a broad array of environmental contexts. For example, one branch of my research investigates the role of catecholamines in adjusting the relative contributions of internal and external sources of information to improve learning and perception in dynamic environments. My research relies on detailed quantification of human behavior in cognitive and perceptual tasks, computational modeling, and indirect measurements of neural function such as fMRI, EEG, and pupillometry.
Contact Information
Address:
Brown University CLPS department
190 Thayer Street
Providence RI, 02906
Office:
153 Metcalf hall
Email:
[email protected]
Andra Geana
Postdoctoral Fellow
Ph.D, Psychology & Neuroscience, 2015
Princeton University | Princeton, NJ
B.S. Mathematics, Psychology, 2010
Brown University | Providence RI
Research Interests
I am a postdoctoral researcher working on computational models of human learning and decision processes, with a special focus on how people search for and select from available information to build accurate representations of the world. My work aims to understand how human information-seeking processes contribute to our daily decisions, and what the disruption of these processes in psychiatric disorders such as OCD and schizophrenia can tell us about the underlying neurobiology of decision-making.
Contact Information
Email: andra_geana [@] brown.edu
Andrew Westbrook
PhD Washington University
St. Louis 2016
MA Washington University
St. Louis 2012
MS
University of North Carolina
Chapel Hill 2006
BS University of Illinois
Urbana-Champaign 2003
Research Interests
Andrew is interested in decision-making about cognitive effort. In particular, he’s interested in what role dopamine plays in learning costs and benefits and also translating instantaneous motivation into promoting or undermining cognitive control. When he’s not investing cognitive effort in his work, he spends his time rock climbing, getting riled up about politics, and reading the news obsessively.
Arif Hamid
Ph.D.
Neuroscience, 2016.
University of Michigan
Ann Arbor, MI
Research Interests
I am interested in brain computations that underlie flexible behavioral-control and learning, specifically dopamine and basal-ganglia mechanisms for reward-learning and motivational vigor. I combine behavioral, experimental and modeling approaches for a systems investigation of the precise anatomical, temporal and functional organization of decision-circuits in rodents.
Contact Information
Email: arif_hamid[@]brown.edu
Hometown: Dire Dawa, Ethiopia
Louis Gularte
MA, Philosophy, 2013
Northern Illinois University | DeKalb, Illinois
BA, Philosophy, 2008
BA, Psychology, 2008
University of Notre Dame | Notre Dame, Indiana
Research Interests
My philosophy dissertation work is on the nature of (dis)value and morality and how that interacts with the nature of suffering; my main interests are in metaethics and the philosophy of language and mind. In cognitive science, my hope is to get as clear as possible on the nature of suffering by looking at the interactions between negative affect on the one hand and reward learning and decision-making more broadly on the other.
Contact Information:
Email: lgularte[@]brown.edu
Hometown: Gonzales, CA
Prannath Moolchand
Doctoral Candidate
Neuroscience
Brown University
Providence
Rhode Island
MSc
Cognitive and Computational Neuroscience, 2012
University of Sheffield
Sheffiled, United Kingdom.
BEng(Hons) Mechatronics, 2010
University of Mauritius | Mauritius.
Research Interests
Prannath is interested in Theoretical Neuroscience, using the Computational Neuroscience approach. He is working on a collaborative project between the Frank and the Jones labs, trying to combine Dr. Frank’s high cognitive level model of the Basal Ganglia with Dr. Jones’s lower level biophysical model of the thalamocortical loop. They seek to understand how the Basal Ganglia and Thalamocortical loops interact in both healthy and diseased conditions, with a particular focus on Parkinson’s disease.
Contact Information
Email:
[email protected]
Alexander Fengler
BSc. International Business
MSc. Neuroeconomics
MPhil. Statistics
Contact Information
mail: [email protected]
[email protected]
Hometown: Bergheim, Germany
Dan Scott
B.A. Physics &
B.A. Mathematics
University of California
Berkeley, California
Research Interests
My research program at Brown revolves around reinforcement learning, computational psychiatry, and network computation. If I have one over-arching goal at the moment, it is to understand how aberrant network function produces changes in psychiatrically relevant processes. Reinforcement learning is a relatively well studied system in which variations in function at multiple levels of analysis are known to produce many interesting effects, and as such constitutes an excellent model system for these types of investigations. That aside, it’s also fascinating in its own right, can be approached normatively, computationally, algorithmically, etc, and has far reaching connections in mathematics, statistics, and physics.
Contact Information
Email: [email protected]
Hometown:
Orinda, CA
Harrison Ritz
MSc. – Psychology, University of Western Ontario | London, ON, CA
BSc. – Psychology | Queen’s University, ON CA
Research Interests:
My undergraduate and masters’ theses focused on the neural correlates of attentional control during auditory and speech perception. My current research interests are broadly about characterizing neural systems that dynamically control decision-making in noisy, unstable environments. In my free time, I like watching films, distance running, batch cooking, and creating or listening to music.
CV
Contact Information:
Email:
[email protected]
Guillaume Pagnier
Brown Neuroscience 1st year doctoral student
Rotational Student
Education
MS University of Massachusetts, Amherst 2015
BS University of Massachusetts, Amherst 2013
Research Interests
While at Brown, I’d like to analyze the neural underpinnings of risky decision making and reward anticipation. I’m in the midst of determining the best way to accomplish this but I’m hoping to combine behavioral, neural, and computational techniques across species to study the functional circuits responsible for probabilistic decision making.
Andrea Mueller
B.S. Psychology & B.S. Evolutionary Anthropology 2016
University of New Mexico | Albuquerque, NM
Research Interests
I am interested in how people process and express emotion, specifically what leads to internal versus external expression. My current work explores the relationship between inherent action-outcome biases and emotional approach-avoidance biases.
Contact Information
email: andrea_mueller[@]brown.edu
Hometown: Albuquerque, NM

Hazem Abbas

Hassiet Asberom

Caleb Thomas

Milena Rmus
Medical Collaborators Wael Asaad, MD, PhD Assistant Professor of Neurosurgery Brown University Medical School Joseph Friedman, MD Clinical Professor, Dept. of Clinical Neuroscience Brown University Medical School Scott J. Sherman, MD, PhD Associate Professor of Neurology University of Arizona College of Medicine |
Former Lab Members Nicholas Franklin Postdoctoral Researcher, Sam Gershman Lab Harvard University | Cambridge, MA Anne Collins, Ph.D. Former Postdoctoral Researcher Assistant Professor UC Berkeley | Berkeley, CA James F Cavanagh, Ph.D. Former Postdoctoral Researcher Assistant Professor, Department of Psychology University of New Mexico | Albuquerque, NM Jeffrey Cockburn Former PhD Student Postdoctoral Researcher California Institute of Technology | Pasadena, CA Thomas Wiecki Former PhD Student Lead Data Scientist, Quantopian Inc. Bradley Doll, Ph.D. Former Graduate Student Senior Data Scientist, Dotdash & The Daily Beast Julie Helmers Former Laboratory Manager MS in Data Science Student New York University Sean Masters Former Laboratory Manager Medical Student Central Michigan University| Mount Pleasant, MI Hyeyoung Shin Former PhD Student Brown University | Providence, Rhode Island Danne Elbers Former Visiting Masters Student Vrije Universiteit, Amsterdam Rasmus Bruckner Former Visiting Masters Student Humboldt-Universität, Berlin Christina Figueroa Former Laboratory Manager Graduate Student Marquette University| Milwaukee, WI Shikhar Kumar Former Graduate Student University of Arizona | Tucson, AZ |
Former RAs Sara Slama Benjamin Gold Emily Nguyen Rob St. Louis Ian Eisenberg Angad Kochar Carissa Aboubakare Jacklyn Babowitch Daniel Valmas Alison Mullin Robin Martens Anuj Patel Joseph DeJonge Hans Pope Julia Rothschild Wenting Xie Anthony Jang Ezra Nelson Giovanna Moraes Nicholas Handfield-Jones Michelle Kulowski Nicole Bilbo Claire Hernon Adi Melamed Patrick LaChance Ji Sun (Julia) Kim Anish Aitharaju Ameyo Attila Neille-Ann Tan Huangqi Jiang 蒋黄麒 Sarah Master |