The question whether memory aberrations in posttraumatic stress disorder also manifest as an increased production of false memories is important for both theoretical and practical reasons, but is yet unsolved. Therefore, for the present study we investigated veridical and false recognition in PTSD with a new scenic variant of the Deese–Roediger–McDermott paradigm, which was administered to traumatized individuals with PTSD , traumatized individuals without PTSD , and non-traumatized controls . The PTSD group neither produced higher rates of false memories nor (...) expressed more confidence in errors, but did show inferior memory sensitivity. Whereas depressive symptoms did not correlate with veridical nor false recognition, state dissociation was positively associated with false memories. (shrink)

Recent theories of Posttraumatic Stress Disorder (PTSD) suggest that memory dysregulation plays a crucial role in symptom maintenance. How- ever, it is not clear which specific memory systems are involved in PTSD. In this study we used a visual implicit memory paradigm to examine memory bias in individuals with PTSD symptoms. Three hundred nineteen participants provided self-report measures of PTSD, anxiety and depression symptoms. Next they completed a visual clarity-rating task (Amir et al. Cognition and Emotion 17(4):567–583, 2003) to assess (...) implicit memory for three picture types (trauma- relevant, neutral, and negative). Results revealed that participants with PTSD symptoms had greater implicit memory for negative and trauma-relevant pictures compared to neutral pictures. Traumatized individuals without PTSD symptoms showed greater implicit memory for negative pictures relative to trauma and neutral pictures. This pattern of results suggests that implicit memory bias for trauma-relevant and negative visual information may be an important factor in the maintenance of PTSD symptoms. (shrink)