Staff & Collaborators

 lab photo Oct 2013 001

Core Research Staff

Joel Nigg, Ph.D.
Principal Investigator

Sarah Karalunas, Ph.D
Assistant Professor, Dept. Psychiatry

Cris Travis, B.S.
Office Assistant to Dr. Nigg

Ceri Sullivan, M.A.
Pre-Natal/Infant Study Coordinator  

Andrew Bontemps, B.A.
Data Assistant

Bill Guethlein
Computer Programmer 

Jessica M. Tipsord, Ph.D.
Project Manager

Christina Finn., M.S.
Study Coordinator

Libby Nousen, B.S.
Data Manager 

Rebecca Feldman, B.A.
Research Assistant/Volunteer Coordinator  

Shea Lott, Ph. D.
Clinical Research Associate

Alishia OConnell, M.A.
Assistant Study Coordinator

Research Assistants

Renee Barnett

Eleanor Battison


Lindsay Miller



MRI Research Staff

Julia Grieser-Painter, Ph.D.
Research Coordinator

Marguerite Matthews, Ph.D.
Post-Doctoral Fellow

Elizabeth Hawkey, B.A.
Study Coordinator/Research Assistant

Damion Demeter, M.A.

Sam Carpenter, B.S.

Jeffrey Yoder

Bene Ramirez

Michaela Cordova, B.A.

Brian Mills, M.A.


In addition to the above research staff, we have many interns and volunteers from Pacific University, Portland State University, Lewis & Clark University, University of Portland, University of Oregon, Oregon State, and other area colleges.  We greatly appreciate their hard work and dedication!


Collaborators at OHSU

Damien Fair, PA-C, Ph.D.
Assistant Professor, Departments of Behavioral Neuroscience & Psychiatry

Bonnie Nagel, Ph.D.
Assistant Professor, Department of Psychiatry

Leeza Maron, Ph.D.
Assistant Professor, Department of Psychiatry

Jackilen Shannon, Ph.D., R.D.,
Scientist, CROET
Associate Professor, Public Health & Preventive Medicine, OHSU

Suzanne Mitchell, Ph.D.
Associate Professor, Department of Psychiatry
Associate Professor, Department of Behavioral Neuroscience

Cindy McEvoy, M.D., MCR
Associate Professor of Pediatrics
Director, Clinical Research, Pediatric and
Child Health Research Program

Ajit Jetmalani M.D.
Division of Child & Adolescent Psychiatry, Director
OHSU Department of Psychiatry

Alexander A. Stevens, Ph.D.
Assistant Professor, Department of Psychiatry
Assistant Professor, Department of Behavioral Neuroscience

Diane D. Stadler, Ph.D., R.D.
Research Assistant Professor
Division of Health Promotion & Sports Medicine
Director, Graduate Programs in Human Nutrition

Garet Lahvis, Ph.D.
Assistant Professor
Department of Behavioral Neuroscience

Leonardo Pereira M.D., MCR
Assistant Professor
Chief, Division of Maternal-Fetal Medicine
Director of Obstetric Services

Beth Wilmot, Ph.D.
Statistical Geneticist
OCTRI Translational Bioinformatics
Knight Cancer Institute Biostatistics and Bioinformatics
NIA - Layton Aging & Alzheimer's Disease Center

Shannon McWeeney, Ph.D.
Associate Professor
Department of Biostatistics