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The racially diverse affective expression (RADIATE) face stimulus set.

May I Conley1, Danielle V Dellarco2, Estee Rubien-Thomas1

  • 1Department of Psychology, Yale University, New Haven, CT, USA.

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|June 19, 2018
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Summary

A new racially diverse face stimulus set, the RADIATE dataset, offers 1,721 diverse facial expressions. This resource aims to reduce bias in psychological research and improve understanding of emotional processing across diverse populations.

Keywords:
EmotionFacial expressionsMultiracialReliabilityStimuliValidity

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Area of Science:

  • Psychology
  • Neuroimaging
  • Social Sciences

Background:

  • Existing face stimulus sets lack racial and ethnic diversity, potentially biasing research findings.
  • This limitation hinders the study of perceptual and emotional processes in diverse populations.

Purpose of the Study:

  • To introduce the Racially Diverse Affective Expression (RADIATE) face stimulus set.
  • To provide an open-access resource with 1,721 diverse facial expressions reflecting current US demographics.

Main Methods:

  • Development of a stimulus set featuring Black, White, Hispanic, and Asian adult models.
  • Collection of facial expressions to represent a range of emotional stimuli.
  • Psychometric evaluation of the stimuli for validity and reliability.

Main Results:

  • The RADIATE set comprises 1,721 facial expressions from diverse racial and ethnic groups.
  • Psychometric data indicate initial validity and reliability for the emotional expression stimuli.
  • The set's diversity aligns with 2020 US census demographic shifts.

Conclusions:

  • The RADIATE face stimulus set addresses the need for diversity in psychological and neuroimaging research.
  • This open-access resource can mitigate bias and facilitate studies on race, ethnicity, and emotional processing.