A trauma trigger is a psychological stimulus that prompts involuntary recall of a previous traumatic experience. The stimulus itself need not be frightening or traumatic and may be only indirectly or superficially reminiscent of an earlier traumatic incident, such as a scent or a piece of clothing.[1] Triggers can be subtle, individual, and difficult for others to predict.[2][3] A trauma trigger may also be called a trauma stimulus, a trauma stressor or a trauma reminder.[4][5]
The process of connecting a traumatic experience to a trauma trigger is called traumatic coupling.[6] When trauma is "triggered", the involuntary response goes far beyond feeling uncomfortable and can feel overwhelming and uncontrollable, such as a panic attack, a flashback, or a strong impulse to flee to a safe place.[7][8][9] Avoiding a trauma trigger, and therefore the potentially extreme reaction it provokes, is a common behavioral symptom of posttraumatic stress disorder (PTSD) and post-traumatic embitterment disorder (PTED), a treatable and usually temporary condition in which people sometimes experience overwhelming emotional or physical symptoms when something reminds them of, or "triggers" the memory of, a traumatic event.[5] Long-term avoidance of triggers increases the likelihood that the affected person will develop a disabling level of PTSD.[10] Identifying and addressing trauma triggers is an important part of treating PTSD.[6]
A trigger warning is a message presented to an audience about the contents of a piece of media, to warn them that it contains potentially distressing content. A more generic term, which is not directly focused on PTSD, is content warning.
^van der Kolk, Bessel A. (January 1994). "The Body Keeps the Score: Memory and the Evolving Psychobiology of Post traumatic Stress". Harvard Review of Psychiatry. 1 (5): 253–265. doi:10.3109/10673229409017088. PMID9384857. S2CID23677122.
^ abFoa, Edna B.; Keane, Terence M.; Friedman, Matthew J.; Cohen, Judith A. (2008). Effective Treatments for PTSD, Second Edition: Practice Guidelines from the International Society for Traumatic Stress Studies. Guilford Press. p. 274. ISBN978-1-60623-792-2.