Problems of Forensic Sciences 1998 Vol. 38 (XXXVIII) 92-112

SIMILARITIES IN HANDWRITING OF CLOSELY RELATED PEOPLE INCLUDING THE FEATURES OF LATERALISATION

Hubert HŁADIJ1, Magdalena ZACZYŃSKA2
1Institute of Forensic Research, Cracow
2Department of Biology and Natural Sciences, Jagiellonian University, Cracow

Streszczenie
The work deals with the problem of similarities found in handwriting of people closely related to each other on the background of the research concerning the handwriting of monozygotic and dizygotic twins. Three generational, homogeneous family strings, as well as one, large, three generational family have been examined by taking from the members of the families the same graphic patterns. The analysis has been carried out in five groups of formal features of handwriting, focusing on particular, selected properties of graphism. The most essential observations have been presented, together with illustrations. The graphological aspect has been complemented with the biological point of view, namely, the examination of the influence of functional lateralisation on handwriting. The conclusions present the genetic aspect of the issue of similarities in handwriting of closely related people, while pointing at some methodological difficulties of the examination of inheritance processes from this point of view.

Słowa kluczowe
Handwriting analysis; Monozygotic and dizygotic twins; Closely related people; Similarities in Handwriting; Lateralization.