الفهرس 
Physiology of handwritingOnly 14 pages are availabe for public view
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Abstract
Handwriting is a complex motor skill that is mastered through practice and repetition. Once this occurs, writers focus on the subject matter rather than the physical act of writing and these results in appearance of individual characteristics that differ from one person to another. Twins represent a special situation since they are sharing genetic basis as well as environmental factors that may affect handwriting. A controversy was found between previous studies about similarities and differences in handwriting by twins. The present study included 40 pairs of apparently healthy twins, 20 identical pairs and 20 fraternal pairs. Their ages ranged from 18 to 45 years old. Each subject was asked to write certain paragraph in Arabic language on four separate papers. Examination of handwriting samples in this study was based on studying class and individual characteristics of handwriting.