Meet Our Team!


Dr. Cullen's PhotoKathryn Cullen, M.D. 

Dr. Cullen is an Associate Professor and Director of the Child and Adolescent Psychiatry at the University of Minnesota Medical School in Minneapolis. She received a bachelor of arts degree from the University of Chicago. She completed medical school, residency training, and child and adolescent psychiatry fellowship training at the University of Minnesota. She also completed a research training fellowship in Neurobehavioral Development at the University of Minnesota. She has been on the faculty in the Department of Psychiatry since 2008. Dr. Cullen's research focuses on adolescent depression and related problems such as self-injury.

Dr. Klimes-DouganBonnie Klimes-Dougan, Ph.D. 

Dr. Klimes-Dougan is an Associate Professor of Psychology at the University of Minnesota. She received a bachelor of science from Loma Linda University. She completed doctoral training in clinical psychology at Florida State University, completed her internship at Duke University and postdoctoral fellowship at the National Institutes of Mental Health. She was a faculty at the Catholic University of America before being hired by the University of Minnesota in 2004. Dr. Klimes-Dougan's research focuses on the stress system, considering risk and protective factors for distress, depression and despair in adolescents. 




Graduate Students

Mindy's PictureMindy Westlund Schreiner

Mindy is a fifth year doctoral candidate in the Clinical Science and Psychopathology Research program at the University of Minnesota. She received her Bachelor of Arts in Psychology in 2012 and her Master of Arts in Psychology in 2016, both from the University of Minnesota. She has been part of the RAD lab since January 2011 and has held almost every role in the lab (undergraduate volunteer, research assistant, study coordinator, and now graduate student). Mindy is interested in understanding the brain functioning associated with nonsuicidal self-injury and suicide by examining functional and structural connectivity in the brain. 

Michelle Corkrum's PhotoMichelle Corkrum

I entered the Medical Scientist Training Program (MD-PhD) in 2012.  As a physician-scientist, I plan to investigate the neural mechanisms underlying neuropsychiatric disorders to develop and implement efficacious non-invasive neuromodulatory treatment interventions targeted at specific neural circuits and networks. I am excited about volunteering in the RAD lab because the lab investigates the efficacy and mechanism of action of potential treatment interventions for neuropsychiatric disorders. 

Michelle Thai's PhotoMichelle Thai

I am currently a graduate student in the Clinical Science and Psychopathology Research Program program. My interests focus on understanding the cognitive and neural mechanisms underlying mood and anxiety disorders. I am particularly interested in the use of neuromodulation as a tool to study and treat affective disorders.


Nathan Horek's Photo Nathan Horek 

Nathan began working in the RAD Lab as a research coordinator in September of 2016, focusing on two biological studies: Mitochondrial Dysfunction, Inflammation and White Matter Integrity in Youth with Mood Disorders and High-Field Imaging in Adolescents with MDD.  Nathan's primary research interests lie in the biological mechanisms of mental health, especially the convergence of the immune, endocrine and nervous systems. Previous to working in the amazing RAD Lab, Nathan practiced as a Naturopathic Doctor in Minnesota and Oregon and hopes to also explore research in integrative medicine in the future. His daughter loves rainbows, unicorns, her cousins and treats.  

Anna Parenteau Anna Parenteau

Anna is the study coordinator for the Brain Imaging Development of Girls' Emotion and Self (BRIDGES) Study. She completed her degree in Child Psychology at the University of Minnesota in 2017. She has previously worked as a research assistant in the Human Developmental Psychobiology Lab at the Institute of Child Development with Dr. Megan Gunnar. Her research as an undergraduate focused on emotion regulation differences in teenagers who experienced early life stress. She continues to serve as a research specialist at the Greater Minneapolis Crisis Nursery, assisting with data collection for a Frontiers of Innovation (FOI) funded project. Anna is interested in the adolescent brain and how it changes over time, as well as the impact of stress on development.

Undergraduate Students

Emma BjorgaardEmma Bjorgaard

Hi! My name is Emma and I am a second year student at the University of Minnesota. I am a Psychology B.S. major and a Neuroscience and Spanish minor. I love working with the team of the RAD Lab because it gives me lab experience, and an invaluable look into what happens inside a lab in terms of the measures they use to assess mental health in adolescents. In the future, I plan to do my own research in the mental health field, in the hopes of better understanding mental illnesses and improving the lives of people who suffer from them.

Anna WagnerAnna Wagner

I am a senior at the University of Minnesota pursuing a B.S. in Psychology and minors in both Neuroscience and Child Psychology. I became involved in the RAD Lab over two years ago, and the people are some of the most hardworking and passionate I have ever met. I am drawn to the breadth of research that is conducted in the lab: both treatment and non-treatment studies exploring a variety of behaviors and mood disorders. In the future, I plan to pursue a graduate degree and become a licensed mental health professional with a special interest in early intervention implementation. 

Lamisa ChowdhuryLamisa Chowdhury

I am a senior at the University of Minnesota – Twin Cities pursuing a B.S. in psychology and a minor in neuroscience. I have joint interests in clinical psychology and personality, individual differences, and behavior genetics (PIB). I am currently in the process of researching religiosity and suicidality and associations between the Five Factor Model and positive schizotypy in adolescents with bipolar disorders. The RAD Lab has been the ideal place to explore these questions regarding mental illness in a vulnerable population – adolescents. I aspire to study clinical psychology or clinical social work with the overarching goal of reducing human suffering and enriching our ability to connect to others and ourselves meaningfully.

Jess' PictureLi Shen Chong (Jess)

I am currently a psychology major, neuroscience and management minor senior student in the U of M. I had always been curious about the psychobiology of stress and the stress coping mechanism, hence, I joined RAD lab to learn more about it. The most interesting part of  volunteering in RAD lab is getting to shadow and  assist in MRI sessions. This volunteer opportunity has definitely strengthen my research, data management and data analytic skills. Overall, my volunteer experience in RAD lab definitely help to reinforce my future career plan to pursue for graduate school in the field of clinical psychology and boost my confidence to achieve my goals!

Dawson Hill's Photo Dawson Hill

Hi my name is Dawson Hill and I’m a junior studying Psychology here at the U. I became interested in the RAD Lab initially because of the research related to MRI imaging and how we look for indicators and signs of disorders based on brain structure. Additionally, I like being a part of the RAD Lab because of the team atmosphere involved and how everything comes together with many different contributions. As of right now, my goal is to become an adolescent psychiatrist working in a residential mental health treatment facility.

Conor Lanning's PhotoConor Lanning

My name is Conor Lanning, and I am a junior currently majoring in Psychology and Anthropology with a minor in Neuroscience. The best part about working in the RAD Lab is getting to work with the researchers to develop a clinical frame of asking questions. Once I graduate with my bachelor's, I intend on pursuing a Ph.D. in Clinical Psychology, as well as a M.A. or a Ph.D. in Anthropology, with an end goal of working as a psychiatric anthropologist.

Marwa Ibrahim's Photo Marwa Ibrahim

My name is Marwa and I'm an undergraduate student majoring in psychology (B.S) and minoring in neuroscience. I joined the RAD lab to explore adolescence research more in depth and get to work alongside some of the most passionate researchers on campus who are truly driven to discover. I'm deeply interested in research focused on emotion socialization and also how developmental/neurobiological processes are affected by depression and other mood disorders. I'm planning to go to graduate school to hopefully pursue a PhD in one of the many psychology disciplines (still exploring!)