Schizophrenia: diagnosis and prognosis.

The Stanley R. Dean Research Award was established by the Fund for the Behavioral Sciences and is presented jointly with the American College of Psychiatrists to emphasize the importance of basic research toward an understanding of schizophrenia; each year, a scientist who has made an important contribution in this area is honored. Following is the text of a lecture delivered by Dr. Gabriel Langfeldt on the occasion of his receiving the seventh annual award of $2,000 at a seminar held in New Orleans, Louisiana, February 1, 1969, by the American College of Psychiatrists. Dr. Langfeldt, a pioneer in diagnostic criteria for schizophrenia, outlines the procedures which led to the recognition of schizophreniform, or schizophrenia-like, psychosis, an important step toward isolating the “true” schizophrenias.