In J.D. Salinger's book, The Catcher In The Rye, through cognition and mood and childhood trauma, Holden Caulfield shows signs of PTSD. Holden has many negative thoughts about not only himself, but also other people. He also experienced a lot of childhood trauma as a kid such as; when his brother Ali died and when James Castle had committed suicide.
National Institutes of Health. “Post-Traumatic Stress Disorder.” National Institute of Mental Health, Feb. 2016, https://www.nimh.nih.gov/health/topics/post-traumatic-stress-disorder-ptsd/index.shtml.Accessed 29 Jan. 2017.
Salinger, J.D. The Catcher in the Rye. Little, Brown, and company, 1951.