This study provides the first psychophysiological analysis of narcissism by
measuring autonomic responses during active and passive anticipatory copin
g in 40 undergraduate men who scored high or low on the Narcissistic Person
ality inventory (NPI). Compared to the low NPI group, the high NPI group sh
owed greater preejection period (PEP) shortening. cardiac deceleration, and
skin conductance response (SCR) habituation during anticipation of an aver
sive stimulus (p < .02). As expected, SCR and PEP reactivity were greater d
uring active than passive coping. Tn the case of PEP, this effect emerged o
nly in the low NPI group; the high NPI group showed the greatest PEP reacti
vity during the first task, regardless of coping demands. These data suppor
t hypothesized relationships among narcissism, psychopathy, and psychologic
al predictors of cardiovascular disease, and suggest that a psychobiologica
l dimension may underlie important features of narcissism.