Local processing bias impairs lineup performance

Psychol Rep. 2003 Oct;93(2):393-4. doi: 10.2466/pr0.2003.93.2.393.


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.

MeSH terms

  • Humans
  • Mental Recall*
  • Random Allocation
  • Repression, Psychology*
  • Visual Perception