We analyze handwriting records from several school children with the aim of characterizing the fluctuating behavior of the writing speed. It will be concluded that remarkable differences exist between proficient and dysgraphic handwritings which were unknown so far. It is shown that in the case of proficient handwriting, the variations in handwriting speed are strongly autocorrelated within times corresponding to the completion of a single character or letter, while become uncorrelated at longer times. In the case of dysgraphia, such correlations persist on longer time scales and the autocorrelation function seems to display algebraic time decay, indicating the presence of strong anomalies in the handwriting process. Applications of the results in educational/clinical programs are envisaged. Copyright © 2009 EPLA.

Rosenblum, S., Roman, H. (2009). Fluctuation analysis of proficient and dysgraphic handwriting in children. EUROPHYSICS LETTERS, 85(5) [10.1209/0295-5075/85/58007].

Fluctuation analysis of proficient and dysgraphic handwriting in children

Roman H. E.
2009

Abstract

We analyze handwriting records from several school children with the aim of characterizing the fluctuating behavior of the writing speed. It will be concluded that remarkable differences exist between proficient and dysgraphic handwritings which were unknown so far. It is shown that in the case of proficient handwriting, the variations in handwriting speed are strongly autocorrelated within times corresponding to the completion of a single character or letter, while become uncorrelated at longer times. In the case of dysgraphia, such correlations persist on longer time scales and the autocorrelation function seems to display algebraic time decay, indicating the presence of strong anomalies in the handwriting process. Applications of the results in educational/clinical programs are envisaged. Copyright © 2009 EPLA.
Articolo in rivista - Articolo scientifico
Dysgraphia in school children, long time correlations, Hurst exponent
English
2009
85
5
58007
reserved
Rosenblum, S., Roman, H. (2009). Fluctuation analysis of proficient and dysgraphic handwriting in children. EUROPHYSICS LETTERS, 85(5) [10.1209/0295-5075/85/58007].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/326531
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