Problematic health concerns characteristic of hypochondriasis may be better
understood with the aid of cognitive, information processing theories. We
investigated whether hypochondriacal individuals show perceptual: and expli
cit memory biases favoring health-related information. A clinical sample of
hypochondriacs (n=18) and healthy controls (n=22), and a sample of hypocho
ndriacal (n=22) and nonhypochondriacal (n=67) patients referred for Holter
monitoring. completed a computerized test of perceiving difficult-to-read w
ords and then an encoding task followed by recall of those words. Contrary
to our prediction:, hypochondriacal individuals in the clinical sample did
not perceive more health-related words than words not related to health. Hy
pochondriacal individuals in the Holter-monitoring sample showed: an unexpe
cted bias against reporting health-related words;. Social class may account
for some of the group differences in this sample. Hypochondriacal individu
als in both samples showed better memory for health-related than nonhealth
words. (C) 1999 Elsevier Science Inc.