On the prowl for disciplinary vassals: Neurologists, psychiatrists, and clinical psychologists discuss science, technology, and profession at the National Research Council's Conference on Relations of Psychiatry to Psychology (1921).
The 1910s were a complex and rapidly changing decade in mental hygiene, marked by institutional innovation, professional development, and the expanding reconceptualization of mental disease and maladjustment. This growth frequently generated friction between practical clinical sciences, particularly psychiatry and consulting clinical psychology. After years of mounting tension, the National Research Council convened a joint conference in 1921 on the "Relations of Psychiatry to Psychology," bringing together 12 representatives to debate and draft resolutions intended to harmonize collaboration. Despite being the first coordinated effort of its kind in the United States, the meeting has been largely overlooked by historians. Yet the conference, especially its unpublished 43-page stenographic transcript and related correspondence, offers a rare window into the conflicts of the 1920s, capturing the tone, immediacy, and strategic maneuvering that more polished publications sideline or obscure. Drawing on these proceedings alongside contemporary publications and archival materials, this article reconstructs the meeting, its background, and its immediate repercussions. I argue that the conference revolved around four intertwined points of contention: (a) the definition and scope of core concepts such as "disease," "diagnosis," and "medical"; (b) psychologists' freedom to conduct clinical research without psychiatric supervision; (c) the hierarchical relationship and division of labor between the professions; and (d) the organization, administration, and authority of psychological clinics. Ultimately, the 1921 meeting saw psychologists pressing for clearer definitions, research autonomy, and practical authority, whereas psychiatrists defended broad conceptual frameworks and professional precedence that confined psychologists to experimental work and narrowly defined psychometric consultation. (PsycInfo Database Record (c) 2026 APA, all rights reserved).