Gregory Light, Ph.D. 

UCSD Department of Psychiatry
Deputy Vice Chair of Psychiatry Education and Training
Associate Director, Schizophrenia Program

VA San Diego Healthcare System
Director of Mental Health Research
Director of the Mental Illness, Research, Education and Clinical Center (MIRECC)
Associate Director, VISN-22 MIRECC


Contact Information

T: (619) 543-2496
F: (619) 543-2493


Dr. Gregory Light is an Associate Professor and Deputy Vice Chair of Education and Training in the UCSD Department of Psychiatry. Dr. Light also serves as the Director of Mental Health Research and the Administrative Director of the Mental Illness, Research, Education and Clinical Center (MIRECC) at the VA San Diego Healthcare System. Dr. Light’s research has advanced the use of objective, laboratory-based biomarkers for predicting and tracking therapeutic response to cognitive and pharmacologic interventions in schizophrenia patients.


Research Interests

Research Focus

Dr. Light has been a contributor and leader of the UCSD Schizophrenia Program. He has overseen the recruitment, clinical evaluation, and biomarker testing of thousands of participants, including schizophrenia patients, their family members, and nonpsychiatric subjects. Dr. Light provides clinical and laboratory-based training for UCSD and national research programs as part of the Consortium on the Genetics of Schizophrenia.

Clinical Focus

Dr. Light received his Ph.D. from the top-ranked SDSU-UCSD Joint Doctoral Program in Clinical Psychology with an emphasis in Neuropsychology and Neurophysiology in 2001. Following graduate school, he completed a 2-year Fellowship in Biological Psychiatry and Neuroscience at UCSD. He has published over 100 articles that have appeared in the top journals of psychiatric neuroscience. Dr. Light’s work has been prominently featured in policy reports from the Institute of Medicine for next-generation strategies for personalized treatments of psychotic disorders.


  • Light GA, Braff DL (2005): Mismatch negativity deficits are associated with poor functioning in schizophrenia patients. Archives of General Psychiatry 62:127-136.
  • Light GA, Braff DL (2005): Stability of mismatch negativity deficits and their relationship to functional impairments in chronic schizophrenia. American Journal of Psychiatry 162:1741-3.
  • Light GA, Swerdlow NR, Braff DL (in press): Preattentive sensory processing is associated with cognitive and psychosocial functioning in healthy adults. Journal of Cognitive Neuroscience.
  • Light GA, Hsu JL, Hsieh MH, Meyer Gomes K, Sprock J, Swerdlow NR, Braff DL (in press): Gamma band EEG oscillations reveal neural network cortical coherence dysfunction in schizophrenia patients. Biological Psychiatry.
  • Braff DL, Light GA (2004): Preattentional and attentional cognitive deficits as targets for treating schizophrenia. Psychopharmacology 174:75-85.
  • Braff DL, Light GA (2005): The use of neurophysiological endophenotypes to understand the genetic basis of schizophrenia. Dialogues in Clinical Neuroscience 7:125-135.