Interactive effects of memory structuring and gender in preventing posttraumatic stress symptoms

This study retested effects of a Memory Structuring Intervention (MSI) and the moderating role of gender in relation to posttraumatic stress disorder (PTSD) symptoms. Thirty-four traffic accident victims with high pulse rates were randomly assigned to MSI or supportive listening (control) phone conversations soon after accidents. Based on converging clinical and neuroscience research, the MSI taught chronological organization, labeling emotions/sensations, and describing causality. PTSD symptoms were assessed 3 months later. No overall group differences were found. However, a group by gender interaction revealed that, for women, the MSI was associated with less PTSD symptoms than the control treatment, while the opposite pattern was seen in men. Limitations and possible explanations for these findings are discussed.