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Subjective judgments of deception in pain expression: accuracy and errors
H D Hadjistavropoulos1, K D Craig, T Hadjistavropoulos
1Department of Psychology, University of British Columbia, Vancouver, Canada.
Pain
|May 1, 1996
Summary
Judges can detect pain expressions better than chance, but accuracy varies. Training on specific facial cues can improve distinguishing genuine pain from feigned expressions.
Area of Science:
- Psychology
- Nonverbal Communication
- Facial Expression Analysis
Background:
- Accurate assessment of pain is crucial in clinical settings.
- Facial expressions are key indicators of pain, but can be voluntarily controlled.
- Judges' ability to differentiate genuine from dissimulated (masked or exaggerated) pain expressions is not well understood.
Purpose of the Study:
- To examine the accuracy and errors of judges in differentiating genuine, no pain, and dissimulated facial expressions.
- To assess judges' confidence levels in their classifications.
- To identify specific facial cues used by judges and their effectiveness.
Main Methods:
- Judges were presented with facial expressions of pain, no pain, or dissimulated pain.
- Judges were informed about the presence of misrepresentations and rated their confidence.
- Objective coding of facial reactions (e.g., brow lowering, mouth opening) was correlated with judges' decisions.
Main Results:
- Judges' classifications were better than chance but contained significant errors.
- Extreme expressions (no pain, exaggerated) were identified more accurately than genuine or masked expressions.
- Judges' confidence correlated with their accuracy, and they relied on specific facial cues.
Conclusions:
- Judges demonstrate some ability to detect pain expressions, but accuracy is limited.
- Specific facial cues are utilized, but systematic training may enhance performance.
- Improving judges' accuracy in pain expression identification requires targeted interventions.