Ralph Edward Hoffman, MD

Professor of Psychiatry and Clinical Professor of Nursing; Medical Director, Intensive Outpatient Program at Yale-New Haven Psychiatric Hospital

Departments & Organizations

Albert J. Solnit Integrated Training

NIMH Research Training Program in Childhood-onset Neuropsychiatric Disorders

Office of Student Research

Psychiatry: Adult Psychiatry | Dual Diagnosis Intensive Outpatient Program | General Adult Intensive Outpatient Program | Repetitive Transcranial Magnetic Stimulation Research Clinic

Yale Medical Group


Dr. Hoffman currently is medical director of the adult intensive outpatient treatment program at Yale-New Haven Psychiatric Hospital and oversees a research program whose focus is to ascertain brain mechanisms that produce psychosis in schizophrenia. His undergraduate studies were in mathematics and theory of computation. Using this background, he was among the first researchers to rigorously apply computer models of neural networks to study neurobiological processes underlying schizophrenia. He was also the first researcher to undertake a clinical trial using repetitive transcranial magnetic stimulation (rTMS) as an experimental intervention for auditory hallucinations. He recently completed: (i) a study of hyperconnected network producing auditory hallucinations (in collaboration with Dr. Michelle Hampson, Department of Diagnostic Radiology at Yale), and (ii) a neural network modeling study of language disorder and delusions in schizophrenia in collaboration with Prof. Risto Miikkulainen (Department of Computer Science, University of Texas, Austin). The latter study has identified a new pathophysiological mechanism for psychosis, namely overly rapid cortical consolidation that causes intermingling and corruption of emotionally-charged autobiographical and culturally based narrative memories. Finally, Dr. Hoffman has identified social withdrawal as an important risk factor leading to development of schizophrenia, and is investigating the implications of this finding in terms of the neurobiological mechanism of delusions and language disorganization. His current studies include:

  • clinical trials studying efficacy of rTMS in curtailing auditory hallucinations using structural MRI for positioning the stimulation coil;
  • characterizing rate consolidation of narrative memories into cortical structures in patients with schizophrenia and healthy controls;
  • identifying hyperconnected cortical/subcortical networks that "lock into" psychotic representations in patients with mental illness.

Education & Training

MD Albert Einstein College of Medicine (1976)
BS Brown University, Mathematics (1971)
Fellow Yale Psychiatric Institute
Resident Mount Sinai Medical Center
Resident Mount Sinai School of Medicine of the City University of New York

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Contact Info

Ralph Edward Hoffman, MD
Patient Care Locations
Yale-New Haven Psychiatric Hospital Adult Intensive Outpatient Program 425 George Street
New Haven, CT 06511
Yale Psychiatry300 George Street, Ste Suite 901
New Haven, CT 06511
Yale Psychiatry Yale-New Haven Psychiatric Hospital
184 Liberty Street

New Haven, CT 06519

Curriculum Vitae

rTMS clinical trial for auditory hallucinations