Assessing pain by facial expression: facial expression as nexus.

  title={Assessing pain by facial expression: facial expression as nexus.},
  author={Kenneth M. Prkachin},
  journal={Pain research & management},
  volume={14 1},
The experience of pain is often represented by changes in facial expression. Evidence of pain that is available from facial expression has been the subject of considerable scientific investigation. The present paper reviews the history of pain assessment via facial expression in the context of a model of pain expression as a nexus connecting internal experience with social influence. Evidence about the structure of facial expressions of pain across the lifespan is reviewed. Applications of… CONTINUE READING