A new study has found that some symptoms of PTSD are more central than others and that the associations between symptoms may increase over time.

The study, which surveyed over 1,000 patients diagnosed with PTSD, found that intrusive memories and physiological reactivity were the symptoms most closely related to other symptoms in the acute phase after a traumatic event. More generally, symptoms related to reexperiencing the event were strongly connected to other symptoms. Of the initial study participants, 852 were surveyed at twelve months as well and displayed stronger connections between their symptoms as a whole than they had in their acute phases. The researchers conclude that early interventions for intrusions and physiological reactivity in particular may help to decrease other symptoms both in the early and later phases of PTSD.

To read the full article, please visit the JAMA page for it, linked here, and click on the "Download PDF" button in the upper left corner.