Normal auditory negative priming in schizophrenic patients

Performance of 28 schizophrenic patients and 28 matched controls was compared in an auditory priming task. A large auditory negative priming effect was obtained for the patients as well as for the control group, and the size of the negative priming effect was approximately the same for both groups. Under the same conditions, positive or repetition priming for the patients was enhanced compared to that of the control group. The present findings from an auditory priming task are consistent with a growing body of evidence from the visual domain showing normal rather than reduced or eliminated negative priming in schizophrenic patients.     

Interplay Between Service Era,PTSD Symptom Expression,and Treatment Completion Among Veterans

The current veteran population has grown significantly as a result of 3 recent major conflicts: Vietnam, Persian Gulf War, and Operation Enduring Freedom/Operation Iraqi Freedom (OEF/OIF). Despite a strong presence in VA PTSD specialty clinics nationwide, little is known about how these veteran cohort groups differ in PTSD symptom presentation. Additionally, it is unclear how variations in PTSD symptom presentation may in turn affect treatment adherence and completion. Understanding factors associated with treatment dropout from exposure-based therapy for PTSD is an important area of study, as individuals who drop out of treatment are likely to remain symptomatic and experience significant impairment across a number of psychosocial domains. The present study examined the relationship between service theater affiliation and pretreatment symptom expression as predictors of treatment completion in a sample of 164 veterans. Although treatment completion did not differ by service era, study data revealed statistically significant differences in initial PTSD symptom expression. Implications of the results and future directions are discussed.     

Collective self-continuity,group identification and in-group defense

The present research tested the proposition that the sense of self-continuity that people derive from their group membership provides a basis for group identification and drives in-group defensive reactions in the context of identity threat. This proposition was examined in three studies, using the context of national identity. Study 1 found that collective self-continuity uniquely and strongly predicted national identification, when controlling for other identity motives. Studies 2 and 3 demonstrated that existential threats to national identity particularly increase a sense of collective self-continuity, compared to other identity motives, and that this enhanced sense of collective selfcontinuity results in stronger in-group defense in the form of opposition towards out-groups (Study 2) and social developments (Study 3) that may undermine group identity, as well as in stronger in-group protectionism (Study 3). Taken together, these findings indicate that collective selfcontinuity is an important motive for group identification and in-group defense in the context of identity threat.     

Prolonged exposure therapy for combat-related posttraumatic stress disorder: comparing outcomes for veterans of different wars

There is significant support for exposure therapy as an effective treatment for posttraumatic stress disorder (PTSD) across a variety of populations, including veterans; however, there is little empirical information regarding how veterans of different war theaters respond to exposure therapy. Accordingly, questions remain regarding therapy effectiveness for treatment of PTSD for veterans of different eras. Such questions have important implications for the dissemination of evidence based treatments, treatment development, and policy. The current study compared treatment outcomes across 112 veterans of the Vietnam War, the first Persian Gulf War, and the wars in Afghanistan and Iraq. All subjects were diagnosed with PTSD and enrolled in prolonged exposure (PE) treatment. Veterans from all three groups showed significant improvement in PTSD symptoms, with veterans from Vietnam and Afghanistan/Iraq responding similarly to treatment. Persian Gulf veterans did not respond to treatment at the same rate or to the same degree as veterans from the other two eras. Questions and issues regarding the effectiveness of evidence based treatment for veterans from different eras are discussed.