Pain Attribution Category Prevalence
Pain, Mind-brain, brain attributions, pain, ’s mind-brain
Pain attributions were assigned to categories by coders masked to treatment condition and time point. Attribution category prevalence rates for each condition at each time point are shown, with each participant contributing 3 attributions. Substantial increases in psychological and brain attributions (psychological, brain, and stress categories) were observed in the PRT condition, with relatively little attribution changes in placebo or usual care. Numeric values for attribution counts are shown in eTable 1 in Each participant’s mind-brain attribution score was computed as the number of attributions assigned by the human coders to a mind- or brain-related category (stress, psychological, and brain). Mind-brain attribution scores ranged from 0 to 3 and were low at baseline (mean, 0.27; median, 0), which indicated predominantly non–mind or brain attributions (At baseline, mind and brain attribution scores were positively correlated with a stronger perceived influence of stress and emotion on pain (SOPA Emotion subscale) (PRT led to substantial increases in mind-brain attributions (