The present study evaluated 2 interrelated hypotheses concerning the relation between specific anxiety sensitivity dimensions and how one responds to bodily sensations in a population with no known history of psychopathology (N D 214). Specifically, the Physical Concerns subscale of the Anxiety Sensitivity Index (ASI; S. Reiss, R. A. Peterson, M. Gursky, & R.J. McNally, 1986) was found to be uniquely and statistically predictive of bodily vigilance, whereas the Mental Incapacitation ASI subscale was predictive of emotional avoidance. These effects were above and beyond the variance accounted for by demographic variables, treatment history for common interoceptive medical conditions, subclinical panic attack history, and trait anxiety. We discuss these findings in relation to differential predictive validity conceptualizations of anxiety sensitivity, with implications for understanding models of health functioning and panic disorder.
