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Faces and Pictures: Understanding age differences in two types of graphical authentications

Lookup NU author(s): James Nicholson


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Recall of knowledge-based authentication codes such as passwords and PINs can be problematic, particularly for older adults given the known memory decline associated with ageing. We explored the extent to which recognition-based Graphical Authentication Systems were effective alternatives to PINs and passwords in a study in which users were asked to commit several different codes to memory and recall them at different time periods. Populations of younger and older adults were given face-based and picture-based authentication codes to remember over the course of three weeks. Results show a pronounced age effect, with younger participants outperforming older participants. Older participants fared better with the face-based system over the picture-based system while younger participants exhibited the opposite effect. A significant performance drop was observed for older participants over time, as additional codes were introduced.

Publication metadata

Author(s): Nicholson J, Coventry L, Briggs P

Publication type: Article

Publication status: Published

Journal: International Journal of Human-Computer Studies

Year: 2013

Volume: 71

Issue: 10

Pages: 958-966

Print publication date: 01/10/2013

ISSN (print): 1071-5819

ISSN (electronic): 1095-9300

Publisher: Academic Press


DOI: 10.1016/j.ijhcs.2013.07.001


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