“…Such maltreatment not only may produce lasting sequelae itself, but also is a risk factor for being revictimized in the future (Neumann, Houskamp, Pollock, & Briere, 1996) and for responding to later traumatic events with more severe and complex symptoms (e.g., Bremner, Southwick, Johnson, Yehuda, & Charney, 1993). Also associated with more extreme posttraumatic responses are a range of person-level variables, including nervous system hyperreactivity (Yehuda, 1997), the presence of other anxiety, depressive, or personality-level disorders (Breslau, Davis, & Andreski, 1991), and excessive use of drugs or alcohol (Acierno, Resnick, Kilpatrick, Saunders, & Best, 1999) -all of which both moderate the effects of trauma exposure and may arise themselves, from previous traumatic events (McCauley et al, 1997). Finally, response complexity is often affected by environmental variables such as inadequate social support (Steketee & Foa, 1987), lower socioeconomic status (e.g., Bassuk, Dawson, Perloff, & Weinreb, 2001), and stigmatization associated with certain traumatic experiences (e.g., Lebowitz & Roth, 1994), and may vary according to whatever idioms of distress are most acceptable within a given culture (Marsella, Friedman, Gerrity, & Scurfield, 1996).…”