Local processing bias impairs lineup performance
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Updated: Aug 30, 2026

Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
Published on: December 24, 2015
1Department of Psychology, University of Plymouth, UK. tperfect@plymouth.ac.uk
Abstract:
Evidence suggests that lineup performance by witnesses can be influenced by inducing a prior local or global processing bias. In this study, 90 witnesses attempted to identify a perpetrator from a lineup. Prior to the lineup, 30 participants completed a global processing task followed by a local processing task; 30 did the same tasks in reverse order; and 30 acted as controls. Analysis indicated that the last task completed influenced subsequent lineup performance.
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