"In individuals with PTSD, worst moments contained more unfinished thoughts and fewer words indicating cognitive processing than the remainder of the narrative, which was not the case for individuals without PTSD. A number of theorists have argued that the disorganization of the trauma memory is involved in the development of PTSD, especially intrusive memories moments of PTSD participants (p.684)."
Jelineck, L., Stockbauer, C., Randjbar, S., Kellner, M., Ehring, T., & Mortiz, S. (2010). Characteristics and organization of the worst moment of trauma memories in posttraumatic stress disorder. Behavior Research and Therapy, 48, 680-685.