People

LAB DIRECTOR


Thad Polk, Ph.D. 

tpolk@umich.edu

Professor Thad A. Polk is an Arthur F. Thurnau Professor in the Department of Psychology at the University of Michigan. He also chairs Michigan’s Institutional Review Board for Health Sciences and Behavioral Sciences and serves as an Associate Chair in the Psychology Department. His research combines functional imaging of the human brain with computational modeling and behavioral methods to investigate the neural architecture underlying cognition. Some of his major projects have investigated changes in neural representations as we age, contributions of nature versus nurture to neural organization, and differences in the brains of smokers who quit compared with those who do not. Dr. Polk has taught well over 6,000 UM students over the past 20 years. In 2006, he was named an Arthur F. Thurnau Professor in recognition of outstanding contributions to undergraduate education, and in 2012 Princeton Review included him on its list of the Best 300 Professors in the US. In 2020, Dr. Polk was named the Samuel D. Epstein Collegiate Professor of Psychology in recognition of his work as an inspiring teacher, outstanding researcher and selfless administrator. 

POSTDOC 


Mark D. Zuppichini 

markzupp@umich.edu

Mark is a postdoctoral Research Fellow in the Department of Psychology at the University of Michigan. He received his Ph.D. in Cognition and Neuroscience from the University of Texas at Dallas in 2022 where he investigated the underlying neurophysiologic changes associated with cognitive decline due to multiple sclerosis. Mark joined the lab in August 2022, and he utilizes neuropsychological assessments and neuroimaging methods to study the underlying neural processes associated with healthy cognition and cognitive decline due to aging and disease.

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Molly Simmonite 

molsim@umich.edu

Molly is a postdoctoral Research Fellow in the Department of Psychology at the University of Michigan. She received her PhD in Psychiatry in 2013 from the University of Nottingham, UK, where she investigated cerebral connectivity in psychosis. She joined the Computational & Cognitive Neuroscience Lab in April 2016, and uses functional MRI, MR spectroscopy and behavioral methods to study the effects of aging on the brain. Her research interests revolve around trying to understand the architecture and behavior of the complex brain networks which underlie normal and pathological brain states.

GRADUATE STUDENTS 


Katy Michon

katmich@umich.edu

Katy Michon joined the Psychology department in 2020 as a Ph.D. student in Cognition and Cognitive Neuroscience. She received her Bachelor of Arts in Psychology from the University of Michigan in 2018. In the Computational and Cognitive Neuroscience Lab, Katy uses person-specific neuroimaging techniques and transcranial magnetic stimulation (TMS) to understand how individual differences in the brain are related to individual differences in behavior.

Shreya Rajagopal

shreyara@umich.edu

Shreya Rajagopal is a Ph.D. candidate in Cognition and Cognitive Neuroscience in the Department of Psychology at the University of Michigan, where she joined the Polk lab in 2020. She holds a degree in Electronics and Communication Engineering from Manipal Institute of Technology, India (2018). Shreya’s current research focuses on the context-dependent mechanisms of fear extinction in the brain, using computational and experimental approaches to examine how spatial and temporal contexts influence the return of fear after extinction. Her prior work involved applying machine learning techniques to large-scale neuroimaging data to predict the progression of Alzheimer’s disease. Shreya’s research interests include leveraging novel computational approaches to explore how the brain generates cognition and behavior, and using computational psychiatry to understand how mental health disorders affect brain mechanisms.

Violet Zhou

violetz@umich.edu

Violet had joined the Polk Lab in Fall 2021 as a lab manager. Now she has joined the lab as a new graduate student! She received a Master’s degree in Education Psychology from the University of Texas at Austin in August 2021 and earned a Bachelor of Mechanical Engineering in 2013 from Tongji University in Shanghai, China. After she graduated from college, she worked as an engineer and project manager for developing the Internet-of-Vehicles and actively joined a research project on aging and memory and the effectiveness of certain interventions on Alzheimer’s Disease. She worked as a research assistant at Legare Lab at UT Austin on a cross-cultural study of children’s cognitive development and social learning. Led by her interests and passion in Neuroscience and Clinical Psychology, she wants to explore the neural mechanism of cognitive impairment and to contribute to novel interventions and therapies for psychopathology in the clinical field. She will be working with the MiND Study!

LAB MANAGERS


Noah Reardon

nreardon@umich.edu

Noah joined the Polk Lab in the summer of 2023. He graduated from The Ohio State University with a bachelor’s degree in psychology. He plans to pursue a PhD in cognitive developmental psychology and use a combination of behavioral, neuroimaging, and computational methods to explore how early experiences shape perception and learning.

Kayla Wyatt

kaywyatt@umich.edu

Kayla joined the Polk Lab in the Fall of 2023. She graduated from
Temple University with a bachelor’s in psychology. She is interested in
understanding the interplay between life experiences and the neural
workings of emotional and cognitive processes. She is exploring
different graduate disciplines and hopes to expand and refine her
research interests.

Bingjie Liu

bingjie@umich.edu

Bingjie joined the Polk Lab in the Fall of 2024. She graduated from Cornell University with a master’s degree in Developmental Psychology. She has a broad interest in psychology including clinical, developmental, social, and cognitive areas by using behavioral and neuroscience methods. She hopes to learn more neuroimaging and computational methods and refine her interests.

RESEARCH ASSISTANTS


Spurthi Jayadeva

spurthij@umich.edu

Spurthi is a sophomore majoring in Cognitive Science on the Computation and Cognition track and minoring in Quantitative Methods in the Social Sciences. She joined the Polk Lab in Winter 2022 and is excited to learn more about the neural structures underlying cognition. In her free time, Spurthi enjoys painting and dancing.

Erin Knape

eknape@umich.edu 

Erin is a sophomore intending to major in psychology. She joined the Polk Lab in Winter 2023 and is interested in learning more about the study of cognition and the psychological research process. She aspires to attend graduate school for a master’s of science in psychology or clinical psychology. With training as a researcher and clinical therapist, she hopes to make a difference in the lives of those struggling with mental health and cognitive impairments.

Shruthi Chakravarthy

chakrash@umich.edu 

Shruthi is a sophomore majoring in Computer Science and Biopsychology, Cognition, and Neuroscience. She joined the Polk Lab in Winter 2023, and she is excited to learn about age-related differences in neural activation patterns. In her free time, Shruthi enjoys hiking and playing tennis.

Beatrice Hadiwidjaja

behadiwi@umich.edu

Beatrice is a sophomore majoring in Biopsychology, Cognition, and Neuroscience, minoring in Statistics, who joined the Polk Lab in Winter 2023. She is excited to learn more about the concept of neural distinctiveness and its correlation to neuropsychological illness. Beatrice hopes to pursue a doctoral degree after graduation.

Zhuo (Zoey) Li

zhuol@umich.edu

Zhuo is a sophomore planning to major in BCN and Economics. She joined the Polk Lab in Winter 2023 and she is excited to learn about the aging brain and interventions for Alzheimer’s Disease. In her free time, Zhuo enjoys playing basketball, cooking, and singing.

Milena Stepanova

milenast@umich.edu

Milena is a first year student majoring in Biopsychology, Cognition, and Neuroscience. She joined Polk Lab in Winter 2023, and she is excited to learn more about cognition, abnormalities, and neuroimaging. In her free time she enjoys dancing and traveling.

Liv Terry

ojterry@umich.edu

Liv is a sophomore majoring in Cognitive Science, focusing on computation and cognition. She joined the Polk lab in Winter 2023, and is looking forward to researching context dependent states of fear and extinction, through coding virtual reality environments. Liv wants to continue researching cognitive science topics like perception and consciousness, and potentially attend grad school to further her education on topics of coding and cognition.

Sufyan Salameh

salamsuf@umich.edu

Sufyan is a sophomore majoring in BCN and plans on attending dental school after graduation. He joined the Polk lab in Winter 2023 and is interested in delving into neuroscience, human decision-making behavior, and psychology research. He is also on the cheer team at Michigan and enjoys playing basketball in his free time.

Oreen Morag

oreenm@umich.edu

Oreen is a freshman planning to major in Cognitive Science. She joined the Polk Lab in Winter 2023, and is excited to learn more about the mechanisms of human fear extinction and how virtual reality can be used to explore this topic. In her free time, she enjoys being outside and baking.

Silvia Abbasi

silviaa@umich.edu

Silvia is a freshman planning on double majoring in Biopsychology, Cognition, and Neuroscience (BCN) and Data Science. She joined the Polk Lab in the Summer of 2022 and aspires to become an academic in the field of cognitive neuroscience. Silvia is extremely interested in neuroimaging, particularly in the research being done on the default mode network. She also loves singing, musical theater, and spending time with her friends.

Echo Cao

caoddf@umich.edu

Echo joined the Polk Lab in the Fall of 2024 and is currently pursuing the Cognitive Science Computation Track at the University of Michigan. With a broad interest in both Computer Science and Cognitive Science, Echo focuses on areas such as Human-Computer Interaction, Brain-Machine Interfaces, and cognitive processes through behavioral and neuroscience methodologies. He is eager to expand his knowledge in neuroimaging and computational techniques.”

Brian Hsu

hsubrian@umich.edu

Brian is a sophomore majoring in Computer Science and Cognitive Science. He joined the Polk Lab in the Summer of 2024 and is interested in exploring the intersection of artificial intelligence and neuroscience, particularly in applying computational modeling to understand neural processes. Brian is also interested in the Human-Computer Interface and is excited to experiment with data processing techniques. In his free time, he likes to play volleyball, skateboard around campus, and play various instruments.

Manishika Balamurugan

mbala@umich.edu

Manishika is a sophomore majoring in Biopsychology, Cognition, and Neuroscience with a minor in Computer Science. She joined the Polk Lab in Fall 2024 and is interested in the application of brain-imaging techniques alongside computational modeling methods to understand neuropsychiatric disorders as they develop through an individuals lifetime. In her free time, Manishika enjoys being outside, trying new restaurants, and spending time with friends.

Isabel Bruce

ibruce@umich.edu

Isabel is a sophomore majoring in Neuroscience on the pre-med track, and minoring in Spanish. She’s excited to work in the Polk Lab, and particularly to learn about age-related changes in neural structures. In her free time, Isabel enjoys playing soccer with the Michigan club team, drinking coffee, and spending time with friends.


PICTURES OF THE TEAM