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Validity of kinematics measures to assess handwriting development and disorders with a graphomotor task

European psychiatry, 2021-04, Vol.64 (S1), p.S212-S212 [Peer Reviewed Journal]

The Author(s), 2021. Published by Cambridge University Press on behalf of the European Psychiatric Association. This work is licensed under the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2021 2021 The Author(s) ;ISSN: 0924-9338 ;EISSN: 1778-3585 ;DOI: 10.1192/j.eurpsy.2021.564

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  • Title:
    Validity of kinematics measures to assess handwriting development and disorders with a graphomotor task
  • Author: Lopez, C. ; Cannafarina, A. ; Vaivre-Douret, L.
  • Subjects: Abstract ; Children ; E-Poster Presentation ; graphomotor task ; Handwriting ; handwriting development ; handwriting disorders ; Kinematics
  • Is Part Of: European psychiatry, 2021-04, Vol.64 (S1), p.S212-S212
  • Description: Introduction Handwriting disorder is considered to be one of the major public health problems among school-aged children worldwide. All the scales in the literature use handwriting tasks but it could be interesting to investigate a more accurate assessment of handwriting difficulties before the development and acquisition of handwriting as such. Objectives The objective of our study is to examine the validity of a prescriptural task consisting of copying a line of cycloid loops in the diagnosis of handwriting disorders. Methods 35 children with handwriting disabilities and 331 typically developing right-handed children in primary school, aged 6-11 years old, were included in the study. They performed a copy of a line of cycloid loops, in an ecological setting, with a paper sheet put on the table. The kinematic measures were recorded with a digital pen. A Receiver Operating Characteristic method (ROC curve) was used to determine whether the loops line copy may be a sensitive test to diagnose handwriting disorders. Results Six kinematic variables recorded during the prescriptural task were found to be relevant markers of handwriting disorders with a sensibility between 0.743 and 0.880: strokes number, total and effective drawing time, in-air pauses times, loops number, number of peaks velocity. Conclusions The graphomotor task of copying a line of cycloid loops showed a good sensitivity to diagnose handwriting disorders and appeared to be a good predictor test, more particularly with the variables reflecting the strokes temporal organization.Drawing loops is a rapid graphomotor task, useful for exploring prerequisites of handwriting in screening for handwriting disorders.
  • Publisher: Paris: Cambridge University Press
  • Language: English
  • Identifier: ISSN: 0924-9338
    EISSN: 1778-3585
    DOI: 10.1192/j.eurpsy.2021.564
  • Source: ProQuest One Psychology
    PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
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