176 Figure 8. Correlations between the magnitude of nocebo responses and reported fear levels. A) In the acquisition phase, there was a significant high correlation across all groups between nocebo response magnitudes and reported fear levels. B) In the extinction phase, there was a significant moderate correlation across all groups between nocebo response magnitudes and reported fear. Regardless of the manipulation that participants received, pain-related fear led to larger magnitudes of nocebo hyperalgesia. Fear difference scores acquisition Contol High-pain High-fear Nocebo magnitude 5 4 3 2 1 0 -1 - 1 0 1 2 3 4 5 - 1 0 1 2 3 4 5 4 3 2 1 0 -1 Fear difference scores extinction Nocebo magnitude Group A B Contol High-pain High-fear Group
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