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School of Arts and Sciences

Office of the Dean of Research

Staff Profiles

Robert CookRobert Cook
Dean of Research for Arts and Sciences
Dean of the Graduate School of Arts and Sciences
Dean of Academic Affairs for Arts and Sciences

Professor of Psychology

Robert Cook was named dean of research, dean of academic affairs for Arts and Sciences, and dean of the Graduate School of Arts and Sciences in 2014. Dean Cook began his career at Tufts in 1986, when he joined the Department of Psychology as an assistant professor. He was promoted to full professor in 1999, and served as department chair from 2005 to 2011. He is a member of the American Psychological Association and a past president of the Comparative Cognition Society.

Dean Cook has studied animal cognition and behavior for more than 25 years. His comparative research, supported by the National Science Foundation and the National Institutes of Health, has focused on stimulus control, discrimination learning, and memory in animals. In particular, he has been very interested in the mechanisms of visual perception and discrimination learning in pigeons and starlings, and their comparative relations to our own perception of the world.

Dean Cook received a BS in psychology from Ohio State University and his doctorate in biopsychology from the University of California, Berkeley. He was a National Research Service Award postdoctoral fellow at the University of Texas Health Science Center in Houston before coming to Tufts. He is co-founder and current publisher of Comparative Cognition & Behavior Reviews and has served on the editorial boards of the top journals in animal cognition. He has also been very active in broadening the impact and public visibility of the scientific work in the discipline through the Internet with the publication of the multimedia e-books Avian Visual Cognition and Animal Spatial Cognition.


Jacqueline DejeanJacqueline Dejean
Assistant Dean of Research for Arts and Sciences
Assistant Dean, Diversity & Inclusion, Graduate School of Arts and Sciences

Jacqueline (Jackie) Dejean assumed the role of assistant dean of research in 2017. She is tasked with advancing the strategic research agenda of the school of arts and sciences including program development to achieve strategic goals. She has been launching new programs furthering that mission, most notable of which is the VERSE Program.

Previously, she held positions as director of research affairs and medical college associate vice president of grants and research. She has spent over 20 years in the field of research administration at teaching, research, and medical institutions. She has a long history of civic engagement around diversity and inclusion. She completed her doctorate in law and policy at Northeastern University. She holds an AB from Brown University and a master’s in organizational psychology from William James College (formerly the Massachusetts School of Professional Psychology).