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Facial pain expression.

Kenneth M Prkachin1

  • 1Department of Psychology, University of Northern British Columbia, 3333 University Way, Prince George, BC, N2L 3G1, Canada. kmprk@unbc.ca.

Pain Management
|March 21, 2014
PubMed
Summary

Facial expressions are how people communicate pain. This review covers how pain expressions are encoded and decoded, including their characteristics and how observers perceive them.

Area of Science:

  • Pain perception research
  • Nonverbal communication studies
  • Psychology of pain

Background:

  • Facial expressions are a primary channel for communicating pain.
  • Significant research exists on the properties of pain expressions.
  • Understanding pain expression is crucial for accurate assessment.

Purpose of the Study:

  • To review basic findings on the encoding and decoding of pain expression.
  • To characterize the facial expression of pain.
  • To identify priority areas for future research in pain communication.

Main Methods:

  • Literature review of studies on pain expression encoding and decoding.
  • Description of pain expression characteristics.
  • Analysis of assessment and psychometric properties.

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  • Review of observer sensitivity and bias in decoding.

    • Main Results:

    • Pain expressions have distinct characteristics.
    • Recent findings on assessment and psychometric properties are detailed.
    • Observer sensitivity and bias in evaluating pain expressions are significant.
    • Future research directions are identified.

    Conclusions:

    • The encoding and decoding of pain expressions are complex.
    • Accurate assessment and understanding of observer perception are vital.
    • Further research is needed to refine our understanding of pain communication.