Anxiety Mediates the Link Between Psychopathy and Aggression in NGRI Acquittees.

Psychopathy has been long associated with anxiety, and anxiety has been argued to play an important role in psychopathy-related behaviors, such as aggression. However, these associations have not yet been explored in Not Guilty by Reason of Insanity (NGRI) Acquittees. The goals of the present study were to test the correlations between the 4-facet psychopathy construct and anxiety, and to assess whether anxiety mediates the association between psychopathy and aggression. In a sample of 81 NGRI acquittees, anxiety was positively related to the lifestyle facet. When testing the mediating role of anxiety on the psychopathy-aggression link, the results showed that low anxiety mediated the link between the interpersonal facet and aggression. By contrast, high anxiety mediated the link between the lifestyle facet and aggression. These results highlight the disparate associations between specific psychopathy features and anxiety in predicting aggressive behavior. The present findings demonstrate that violence reduction strategies may need to become more tailored to individual needs when it comes to reducing risk among people with varying levels of psychopathic traits and serious mental illness.

Physiological reactivity in response to a fear-induced virtual reality experience: Associations with psychopathic traits.

Despite the longstanding discussion around the link between psychopathy and fearlessness, few studies have explicitly tested this association, and results have been mixed. This may be due, in part, to the lack of specificity in fear assessment. Further, the relation between psychopathy and fear may be better understood using the two-factor model because, in theory, fear has opposing associations with interpersonal-affective (Factor 1) and impulsive-antisocial (Factor 2) traits. The present study aimed to test if the two factors of psychopathy are deferentially related to fear reactivity. To examine this, we collected sympathetic (SNS; skin conductance) and parasympathetic (PNS; respiratory sinus arrhythmia) nervous system reactivity to an interactive virtual reality horror video in a nonclinical sample (N = 103). Also, we included measures of emotional reactivity to fear and self-report of situational fear. Results indicated that coinhibition (i.e., low PNS and SNS) of the two physiological systems predicted Factor 1, suggesting that individuals high on Factor 1 showed little change in both branches of the autonomic nervous system in response to fear. In contrast, Factor 2 was predicted by high PNS reactivity, suggesting a vulnerability to emotion dysregulation. On emotional reactivity, Factor 1 was related to feeling happier after the fear condition, whereas Factor 2 was related to feeling less in control. Factor 1 was inversely associated with situational fear, specifically, lower scores of social phobias, fear of aggression, and physical injury. In summary, the results provide evidence that psychopathy is related to fearlessness; however, this is unique to the personality features of psychopathy.