Stress-induced allodynia--evidence of increased pain sensitivity in healthy humans and patients with chronic pain after experimentally induced psychosocial stress.

There was no significant difference in the amount of chronic stress between the two groups of subjects in the preceding month, but patients with fibromyalgia showed a trend towards a greater exposure to chronic stress (20.00 versus 14.38, p = .17, see table 1 ).

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For both groups a statistical trend towards allodynia/hyperalgesia could be found in the other thermal stimulation.

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