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The Dynamic Character of Disguise Behavior for Text‐based, Mixed, and Stylized Signatures
Author(s) -
Mohammed Linton A.,
Found Bryan,
Caligiuri Michael,
Rogers Doug
Publication year - 2011
Publication title -
journal of forensic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.715
H-Index - 96
eISSN - 1556-4029
pISSN - 0022-1198
DOI - 10.1111/j.1556-4029.2010.01584.x
Subject(s) - signature (topology) , stylized fact , handwriting , character (mathematics) , style (visual arts) , dynamics (music) , computer science , artificial intelligence , natural language processing , psychology , mathematics , geometry , literature , art , pedagogy , economics , macroeconomics
The aims of this study were to determine if dynamic parameters (duration, size, velocity, jerk, and pen pressure) differed for signing style (text‐based, stylized, and mixed) and if signing style influences handwriting dynamics equally across three signature conditions (genuine, disguised, and auto‐simulation). Ninety writers provided 10 genuine signatures, five disguised signatures, and five auto‐simulated signatures. All 1800 signatures were collected using a digitizing tablet resulting in a database of each signature’s dynamic characteristics. With genuine signatures, there were significant differences between styles for size, velocity, and pen pressure, and there were significant differences between genuine signatures and at least one of the un‐natural signature conditions for all parameters. For velocity and size, these changes with condition were dependent on style. Changes with condition for the other parameters were similar for the three styles. This study shows that there are differences among natural signature styles and disguise behaviors that may be relevant in forensic signature examinations.