The borderline construct has remained enigmatic across generations of clinicians and research traditions since its first appearance in psychiatric literature in the 20th century.1 This construct has traveled from early conceptions of the individual on the “border” of neurosis and psychosis to its current home in a DSM cluster of personality disorders characterized by an unstable negative affect and behavior that is considered unacceptable in polite society.
Minzenberg MJ. Interactional Dysfunction of the Social Brain in a Paradigmatic Relational Disorder: From One Island to Another. JAMA Psychiatry. 2017;74(9):873–874. doi:10.1001/jamapsychiatry.2017.1633
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