The 20 item prosopagnosia index (PI20): Relationship with the Glasgow face-matching test

Punit Shah*, Sophie Sowden, Anne Gaule, Caroline Catmur, Geoffrey Bird

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

The 20 item prosopagnosia index (PI20) was recently developed to identify individuals with developmental prosopagnosia. While the PI20’s principal purpose is to aid researchers and clinicians, it was suggested that it may serve as a useful screening tool to identify people with face recognition difficulties in applied settings where face matching is a critical part of their occupation. Although the PI20 has been validated using behavioural measures of facerecognition, it has yet to be validated against a measure of face-matchingability that is more representative of applied settings. In this study, the PI20 was therefore administered with the Glasgow face-matching test (GFMT). A strong correlation was observed between PI20 and GFMT scores, providing further validation for the PI20, indicating that it is likely to be of value in applied settings.

Original languageEnglish
Article number150305
JournalRoyal Society Open Science
Volume2
Issue number11
DOIs
Publication statusPublished - Nov 2015

Bibliographical note

Publisher Copyright:
© 2015 The Authors.

Keywords

  • Developmental prosopagnosia
  • Face matching
  • Face perception
  • Glasgow face-matching test
  • Prosopagnosia
  • Self-report

ASJC Scopus subject areas

  • General

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