Dynamic affect-pain processes in chronic knee osteoarthritis may reflect individual differences in central pain facilitation.
State positive affect may guide knee OA pain assessment; hypothesis-generating for central facilitation mechanisms and targeted trials.
Stable NA is more predictive of clinical pain than stable PA, whereas state PA is more predictive of both clinical and laboratory pain than state NA. The findings suggest that dynamic affect-pain processes in the field may reflect individual differences in central pain facilitation.
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Finan et al. (2013) studied this question.
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