Handwritten Geometrical Patterns in the Evaluation of Motor Symptoms in Psychotic Disorders.
Nonlinear Dynamics Psychol Life Sci
; 25(1): 1-18, 2021 Jan.
Article
en En
| MEDLINE
| ID: mdl-33308387
ABSTRACT
The analysis of handwriting has been used in several contexts. For example, handwriting has shown to be of value in the study of motor symptoms in neurological and mental disorders. In the present work, the geometric analysis of handwriting patterns is proposed as a tool to evaluate motor symptoms in psychotic disorders. Specifically, we have employed the lacunarity, a measure of the heterogeneity of a spatial structure. Forty-two patients with a psychotic disorder and 35 matched healthy controls participated in the study. Participants were asked to copy some patterns with a pen on a white paper. The results showed that lacunarity was significantly higher in handwritten patterns from patients than from controls. In addition, we found higher values of lacunarity in handwritten patterns from patients with severe motor symptoms in comparison with patients with mild or absent motor symptoms. Lacunarity of handwritten patterns was significantly correlated with clinical scores of rigidity. In conclusion we argue that the heterogeneity of handwritten patterns could be used as a simple and objective measure of motor symptoms.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trastornos Psicóticos
/
Trastornos Motores
/
Escritura Manual
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Nonlinear Dynamics Psychol Life Sci
Asunto de la revista:
BIOLOGIA
/
PSICOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
España