Who We Are

Christopher J. Evans, Ph.D.

Professor, Hatos Center Director

Christopher Evans received his Ph.D. from Imperial College London, conducting his thesis research on endorphins and enkephalins, at the Medical Research Council Institute in Mill Hill. After a postdoctoral fellowship at Stanford University, Dr. Evans joined the UCLA faculty in the Department of Psychiatry and Biobehavioral Science. His research accomplishments have included identification of a number of novel endogenous opioid peptides and the cloning of the first opioid receptor. Dr.

Anne. M. Andrews, Ph.D.


Professor of Psychiatry & Biobehavioral Sciences and Chemistry & Biochemistry Understanding how the serotonin neurotransmitter system modulates complex behaviors including anxiety, mood, stress responsiveness, and learning and memory. Current holder of the Shirley Hatos Endowed Chair in Clinical Neuropharmacology.

David E. Krantz, M.D., Ph.D.


Professor-in-Residence, Department of Psychiatry and Biobehavioral Sciences at the David Geffen School of Medicine

Molecular mechanisms that regulate synaptic transmission, and the relationship between changes in neurotransmitter release and neuropsychiatric and neurodegenerative illnesses such as addiction, depression and Parkinson’s disease.

Brigitte Kieffer, Ph.D.

Scientific Director, Douglas Institute ; Professor, Department of Psychiatry, McGill University Molecular psychiatry, addiction and mood disorders, pain, development disorders.

Areas of expertise: Molecular psychiatry, addiction and mood disorders, pain, development disorders

As of January 2014, Brigitte L. Kieffer, PhD, is the new Scientific Director of the Research Centre. She is also a Professor of Psychiatry and the Monique H. Bourgeois Chair in Pervasive Developmental Disorders at the Faculty of Medicine of McGill University.

Nigel T. Maidment, Ph.D.

Professor, Department of Psychiatry & Biobehavioral Sciences

Mechanisms of reinforcement are studied using in vivo microdialysis and primary culture measurements of monoamine, amino acid and neuropeptide transmitter release combined with behavioral models in both rats and receptor knockout mice.

Wendy M. Walwyn, Ph.D.

Associate Adjunct Professor, Associate Researcher, Department of Psychiatry & Biobehavioral Sciences

Interested in novel pain-relieving strategies and targets, focusing on the opioid receptors present in the neurons that relay pain information.

Lara Ray, Ph.D.

Associate Professor, Department of Psychology

Dr. Lara Ray has an active program of research on the clinical neuroscience of alcoholism. Her research focuses on translating insights from addiction neurobiology to clinical populations affected by alcoholism. Dr. Ray’s studies apply insights from addiction neuroscience into treatment development for alcoholism, including novel medications tested in the human laboratory and in clinical trials.

X. Willam Yang, M.D, Ph.D.

Professor, Center for Neurobehavioral Genetics ; Department of Psychiatry & Biobehavioral Sciences In the Hatos Center

Dr. Yang focuses on addressing how the BG circuits may control the behaviors related to natural rewards and opioid rewards. Dr. Yang’s laboratory is interested in studying the cortical and basal ganglia (BG) circuitry and molecular mechanisms involved in normal behavioral control and in pathogenesis of neurodegenerative disorders such as Huntington's disease.

Amie Severino, Ph.D.

Postdoctoral Scholar

Zhan Shu, Ph.D.

Postdoctoral Scholar

Hoa Lam

Senior Research Associate

Lindsay Lueptow, Ph.D.

Postdoctoral Scholar

Amie Severino, Ph.D.

Postdoctoral Scholar

Polly Segal

Center Administrator