Dr. Weiser MD is Lecturer of Psychiatry at Tel Aviv University, and Head of Psychiatric Ambulatory Services at the Sheba Medical Center. The main focus of his work has involved linking the data obtained from the assessments carried out by the Israeli military on all 16-17 year olds in the country, with the Israeli National Psychiatric Hospitalization Registry. This has yielded significant knowledge on pre-morbid IQ, social functioning and psychiatric disorders in schizophrenia, the use of cannabis before the onset of schizophrenia, and cigarette smoking in adolescents who were later diagnosed with schizophrenia.

He is currently working on other Israeli data bases on projects addressing meningitis and later schizophrenia, the heritability of schizophrenia, and predictors of suicide. He is Principal Investigator of a large multi-center trial assessing the efficacy of d-serine, an excitatory amino acid which activates the NMDA receptor, on negative symptoms and cognitive impairment in schizophrenia. He receives support for his work from NARSAD and the Stanley Medical Research Institute.