Lc. Edwards et al., REMEDIATION OF PAIN-RELATED MEMORY BIAS AS A RESULT OF RECOVERY FROM CHRONIC PAIN, Journal of psychosomatic research, 39(2), 1995, pp. 175-181
Cognitive biases are increasingly implicated as vulnerability factors
in emotional and physical disorders. This issue is examined here in ch
ronic pain sufferers using a recall memory paradigm. A sample of chron
ic pelvic pain patients undergoing hysterectomy and oophorectomy were
assessed prior to the intervention, 8 weeks post-surgery, and again 6
months post-surgery. On each occasion patients were aurally presented
four mixed lists of sensory, affective, neutral and gardening words, m
atched for frequency and length. No difference in the recall of neutra
l and gardening words was found, suggesting that selective memory for
pain-related information cannot be attributed to superior recall of wo
rds belonging to a common semantic category. A clear pattern of more p
ain-related words being remembered before surgery, but better recall o
f non-pain-related words 6 months post-surgery when pain intensity rat
ings are significantly reduced, was evidenced. These results suggest t
hat selective memory for pain-related words is more likely to be a sec
ondary consequence of the long term experience of pain than a stable,
enduring cognitive vulnerability factor.