Environmental and interoceptive influences on chronic low back pain behavior

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Abstract
The operant conditioning theory states that environmental stimuli greatly influence chronic pain behavior. In contrast, the hypochondriasis theory states that pain behavior is the result of an intensified pain perception which is part of a more general augmentation and amplification of normal bodily sensations. The operant theory predicts that pain behavior (operationalized as poorer endurance on the part of chronic low back pain patients as compared to the endurance of control subjects in a series of 6 working-to-tolerance treadmill tests) will decrease when no verbal or non-verbal feedback for treadmilling behavior is given. This hypothesis could not be confirmed in the present study. The hypochondriasis theory predicts that chronic pain patients will report more bodily sensations, both at rest and after treadmill exercises. This hypothesis was strongly supported by the findings of the present study.