On Concept Formation in Interdisciplinary Mental Health Research: Reflections on Gusmão's Concept of "Borderlinization"

This Community and Methodological Note was prompted by Ricardo Gusmão's recent introduction of the concept of "borderlinization" in a work deposited in the Higeimenteum community. Rather than evaluating the substantive claims of that contribution, the present note uses the concept as a point of departure for examining a broader methodological issue: the conditions under which newly proposed concepts evolve from heuristic or metaphorical formulations into analytical categories capable of supporting systematic inquiry. Conceptual innovation plays a central role in the development of interdisciplinary fields, particularly in areas such as mental health where clinical, social, historical, and political perspectives frequently intersect. However, the introduction of new concepts also raises questions concerning conceptual boundaries, distinctiveness, operationalization, and empirical applicability. Using Gusmão's concept of borderlinization as an illustrative case, this note reflects on the methodological challenges associated with concept formation in contemporary mental health scholarship and highlights several criteria that may assist in assessing the analytical potential of emerging concepts. The objective is not to determine the validity of a particular concept, but to contribute to a broader discussion on conceptual development as a component of scientific inquiry and scholarly dialogue.