“Ruminative type symptoms are also seen in posttraumatic stress disorder (PTSD) under the general header of negative alterations in cognition and mood.
These symptoms include pervasive negative beliefs about oneself or the world, such as feelings of self-blame and guilt, which often coincide with distorted beliefs about the traumatic event that led to the development of PTSD (APA, 2013).
Persistent depressive symptoms, such as negative emotional state (e.g. anger, shame, etc.) and inability to feel pleasure (anhedonia), as well as hyper-arousal symptoms, like exaggerated startle response and constantly feeling on edge or hyper-vigilant, are also features of PTSD symptomatology (APA, 2013).
Additionally, PTSD is characterized by intrusive symptoms, defined as recurrent, involuntary, and distressing trauma-related memories; these often appear in nightmares or during flashbacks, which are powerful, involuntary episodes where a memory is re-experienced (APA, 2013).
This profile of symptoms often leads to diminished interest in or participation in normal activities and result in social isolation (APA, 2013).
These symptoms are also associated with significant distress and may increase maladaptive emotion regulation, such as negative appraisal and avoidance.”