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Title: Fine motor ability and psychiatric disorders in youth
Authors: Mendes, Lorenna Sena Teixeira
Manfro, Gisele Gus
Gadelha, Ary [UNIFESP]
Pan, Pedro Mario [UNIFESP]
Bressan, Rodrigo Affonseca [UNIFESP]
Rohde, Luis Augusto
Salum, Giovanni Abrahao
Keywords: Motor ability
Psychiatric disorders
Issue Date: 2018
Publisher: Springer
Citation: European Child & Adolescent Psychiatry. New York, v. 27, n. 5, p. 605-613, 2018.
Abstract: Impaired fine motor ability has been linked to several domains of psychopathology. However, studies validating the specificity of this association among several categorical psychiatric disorders are still needed. The aim of this study was to assess differences in fine motor ability performance among four non-overlapping groups of psychiatric disorders and a group of typical developing comparisons (TDC). Our sample consisted of 2035 subjects aged 6-14-year-old. Diagnoses of psychiatric disorders were performed with the Development and Well-Being Assessment (DAWBA). Five non-overlapping groups without comorbidity were formed: phobic disorders (n = 101), distress disorders (n = 82), attention deficit hyperactivity disorder (ADHD) (n = 133), oppositional defiant disorder/conduct disorder (ODD/CD) (n = 52) and one group of typical developing comparisons (TDC) (n = 1667). Fine motor ability was evaluated by three tasks: sequential finger-thumb opposition, Oseretsky, and pronation/supination tests. Each task was assessed by total time to perform the movement and levels of accuracy, fluency, symmetry, precision, and coordination. We found that, when compared to TDC, the ADHD group performed more poorly in total fine motor ability (mean difference = - 0.28
p = 0.014), time to complete the task (mean difference = 0.36
p < 0.001), accuracy (mean difference = - 0.30
p = 0.005), fluency (mean difference = - 0.26
p = 0.03), symmetry (mean difference - 0.25
p = 0.04), precision (mean difference = - 0.26
p = 0.026), and coordination (mean difference = - 0.25
p = 0.042). The ADHD group also took more time to complete the task than the ODD/CD group (mean difference = 0.45
p = 0.037). No other significant between-group differences were found. Additional analyses showed those differences were statistically significant for all ADHD dimensions. Our results suggest that children with ADHD present impairments in all aspects of fine motor abilities compared to TDC, a difference not found in other psychiatric disorders.
ISSN: 1018-8827
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