Altered processing of health threat words as a function of hypochondriacal tendencies and experimentally manipulated control beliefsPortions of this paper were presented at the 14th Annual Convention of the American Psychological Society, New Orleans, 5 June 2002, and at the Congressional Briefing on Reactions to Terrorism, 18 June 2002.

Attentional biases associated with various forms of psychopathology have been well documented. Few studies, however, have assessed the factors that moderate these biases. The present paper assesses the biased processing of health words as a function of hypochondriacal tendencies during a threat of bioterrorism (anthrax), and whether perceived control can moderate those biases. Based on a sample of 328 participants, hypochondriacal tendencies were associated with slower reaction times on a modified emotional Stroop task when the stimulus words were anthrax-related, and this effect was moderated by a manipulation of perceived control. Specifically, individuals with low perceived control over the health threat had greater attentional bias of anthrax infection, independent of related variables such as anxiety. [ABSTRACT FROM AUTHOR]