- psychomotor hallucination
- Also known as psychomotor verbal hallucination. Both terms are indebted to the Greek noun psuchè (life breath, spirit, soul, mind) and the Latin noun motio (movement). The French term hallucination psycho-motrice was introduced in or shortly before 1888 by the French psychiatrist Louis Jules Ernest Séglas (1856-1939) to denote an inaudible type of * verbal hallucination. Because Séglas envisages psychomo-tor hallucinations as a subclass of the group of verbal hallucinations, he also refers to them as * psychomotor verbal hallucinations (hallucinations psycho-motrices verbales). Conceptually, the latter term is used in opposition to the term * auditory verbal hallucination (AVH). Séglas distinguishes three categories of psychomotor hallucinations: one in which verbal hallucinations present in the form of articulatory movements (i.e. * motor hallucinations), one in which motor sensations accompany verbal phenomena unrecognized by the affected individual as their own (i.e. * subvocalization), and one less circumscript category in which the individual indicates that "I sense these words more than that I hear them" (a state of affairs that has been referred to by some as a * pseudohallucination). Clinically as well as conceptually, it may be somewhat of a challenge to distinguish Séglas's heterogeneous group of Psychomotor hallucinations from notions such as obsessive thinking, obsessive speaking, thought insertion, and perhaps certain types of * synaesthesia as well. After 1939, the year of Séglas's death, the notion of the psy-chomotor hallucination receded into the background of psychiatric conceptual thinking. Nevertheless, his work was a source of inspiration for later research on subvocalization.ReferencesHulak, F. (2003). Un concept de J. Séglas revisité. Perspectives Psychiatriques, 42, 312-318.Séglas, J. (1888). L'hallucination dans ses rapports avec la fonction du langage; - les hallucinations psycho-motrices. Progrès Médical, 33/34, 124-126.
Dictionary of Hallucinations. J.D. Blom. 2010.