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Updated: Aug 20, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
[Occurrence of motility psychoses (cycloid psychoses) in childhood]
Abstract:
4 patients (2 female; 2 male) are described having already had motility psychoses at children's age. Hyperkinetic and akinetic periods of different duration are typical for clinical picture. Long-term catamnesis made from to 19 years show the favourable prognosis of that type of psychosis which is being appointed to cycloid psychosis. Analysing these disease processes problems of differential diagnosis and classification of motility psychosis, that is seldom to be found at children's age, are pointed out. The first description made by Wernicke as well as Kleist's and Leonhard's research with differential diagnostical demarcations are mentioned.
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