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Images display within group effects for Pain > No-Pain contrasts for each of the groups. Contrasts use a whole brain p < 0.001 (uncorrected) with a cluster extent threshold of k = 10 (the more liberal statistical threshold has only been used for figure display). All groups display increased activation in affective pain matrix regions (dACC + AI) but only S/L and A/G responders show effects in the primary and secondary somatosensory cortices.
