William Perry, Ph.D. 

Professor, In Residence


Contact Information

9500 Gilman Drive
La Jolla, CA 92093-8218
T: (619) 543-2827
F: (619) 543-3738


Dr. Perry received his Ph.D. from the California School of Professional Psychology, San Diego in 1989. He completed his Internship and post-doctoral Fellowship at UCSD. He is a Fellow of the National Academy of Neuropsychology (NAN) as well as the Society for Personality Assessment and he serves on the Board of Directors of NAN. His primary clinical responsibility is as the Associate Director of the Neuropsychiatry and Behavioral Medicine Service at the UCSD-Medical Center. He also serves as the Chief Supervising psychologist at UCSD-Medical Center and is a member of Neuropsychological Associates.

Research Interests

Research Focus

Dr. Perry’s primary research program focuses on inhibitory and information processing deficits in psychiatric illness. He is the recipient of several grants to study acutely, un-medicated psychiatric patients using psychophysiological measures in order to characterize their inhibitory functions. Additionally, he is interested in conducting longitudinal studies, relating information processing deficits to thought disorder, neuropsychological and clinical measures. Although a majority of his publications are on patients with schizophrenia, he has funded grants to study patients with affective disorder as well adults with Autistic Disorder. A secondary area of his interest is in the neuropsychology of patients with liver disease. He is the Director of the Neurobehavioral Hepatology Research Program and has co-authored several papers characterizing the neuropsychological deficits of patients with Hepatitis C and End Stage Liver Disease.

Clinical Focus

As the Associate Director of the Neuropsychiatry and Behavioral Medicine Service at the UCSD-Medical Center, Dr. Perry serves as one of four Attendings on the Neuropsychiatry and Behavioral Medicine Unit and for the Psychiatry Consultation-Liaison Service. He oversees consultation programs that have been developed with the UCSD Anesthesia Pain Management Group, Transplantation services and the Burn Service. He also serves as the Chief Supervising Psychologist at UCSD-Medical Center and as a member of Neuropsychological Associates is involved in outpatient neuropsychological and psychodiagnostic assessment.

Clinical Information


  • Perry, W., and Minassian, Cadenhead, K., Spock, J., & Braff, D. The use of the Ego Impairment Index across the schizophrenia spectrum. The Journal of Personality Assessment. In Press
  • Perry, W., Feifel, D., Minassian, A., Bhattcharjie, I., and Braff, D.L. Information processing in medicated and not currently medicated acutely psychotic schizophrenia patients. The American Journal of Psychiatry. 159:8, August 2002 (p 5)
  • Perry, W., Minassian, A., Feifel, D., & Braff, D.L. Sensorimotor gating deficits in bipolar disorder patients with acute psychotic mania. Biological Psychiatry 50, 2001, (pp 418-425).
  • Perry W., Heaton, R.K., Potterat, E., Roebuck, T., Minassian, A. & Braff, D. “Working memory in schizophrenia: transient ‘on-line’ storage versus executive functioning.” Schizophrenia Bulletin, 27 (1), 2001. (pp.157-176)
  • Perry W., Light, G.A., Davis, H. & Braff, D. “Schizophrenia patients demonstrate a dissociation on declarative and nondeclarative memory tests. Schizophrenia Research, 46, 2000. (pp167-174)