Lewis Lund Judd was born in Los Angeles on Feb. 10, 1930, the first of two sons of Dr. George Ezra Judd, an obstetrician-gynecologist, and Emmeline (Lund) Judd, a homemaker. His younger brother, Howard, also a doctor, died in 2007. Besides his wife, he is survived by three daughters — Stephanie Judd, a psychologist; Catherine Judd, a professor of English at the University of Miami; and Allison Fee, an occupational therapist — and five grandchildren.
After graduating from Harvard School, a Los Angeles boys’ prep school (now part of the coeducational Harvard-Westlake School), Dr. Judd entered the University of Utah, where he completed a degree in psychology in 1954. He studied medicine at George Washington University and at the University of California, Los Angeles, finishing his medical degree in 1958. He completed his internship and a residency in psychiatry at U.C.L.A. After a stint in the military as base psychiatrist at Griffiss Air Force Base in Rome, N.Y., he joined the U.C.L.A. psychiatry faculty.
In 1970, Dr. Arnold J. Mandell, the founding chairman of the psychiatry department at the University of California, San Diego, recruited Dr. Judd. The two built the department from the ground up, making it a leader in federal research funding. It was while consulting on an outside program to help adolescents with drug problems that Dr. Judd met a social worker, Patricia Hoffman, whom he married.
Dr. Judd became department chairman in 1977 and, after three years as head of the N.I.M.H., returned to U.C. San Diego. He remained there for 36 years and became a recognizable public face in brain science. He also maintained a small clinical practice, specializing in treating severe depression.
When he retired as chairman in 2013, Dr. Judd was asked by a university press officer about his legacy.
“The thing I’m most proud of is how psychiatry is becoming increasingly recognized as a real biomedical science,” he replied. “It used to be disdained. A broken mind wasn’t as real as a broken bone. We lionized physical medicine, but dismissed brain biology, which has an enormous affect upon not just our behavior, but our bodies as well.”