ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 January 1985
Page Count: 5

Brain Function and Writing with the Unaccustomed Left Hand
Dawson, GA
Document examiner, Centre of Forensic Sciences, Ontario

(Received 26 March 1984; accepted 27 June 1984)

Abstract

Twenty right-handed subjects were asked to handprint a passage containing all the letters of the alphabet once with each hand. The purpose was to describe the changes a document examiner can expect to find in handprinting done with the unaccustomed left hand and to offer a hypothesis as to why these changes occur. It was found that many of the writers displayed persistent differences between their right- and left-hand writings. It is suggested that these differences were due to both a lack of manual dexterity when writing with the unaccustomed left hand and to the fact that different neurophysiological processes are involved.

Keywords:
questioned documents, handwriting, handedness, brain

Paper ID: JFS10977J
DOI: 10.1520/JFS10977J
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