As psycholeptic attacks, Adolf Meyer singles out occurrences of considerable interest, using in a descriptive way a term employed by Janet in a part of his theory of psychasthenia. In the sense in which it is used in the Henry Phipps Psychiatric Clinic, of the Johns Hopkins Hospital, the term "psycholeptic attack," or "psycholeptic episode," refers to a sudden, vivid psychobiologic experience, with a strong somesthetic reference to the region of the head, which impresses itself on (literally, "seizes on the mind of") the patient as the critical event, or at any rate a very critical event, of his illness. This paper is an inquiry into the phenomenon as a human experience rather than as a psychologic postulate in the sense of Janet.
The term "psycholepsy"
MUNCIE W. THE PSYCHOLEPTIC ATTACK IN THE PSYCHOSES. Arch NeurPsych. 1932;27(2):352-366. doi:10.1001/archneurpsyc.1932.02230140106008