When researchers examined medical records of UK servicemen from the Boer War and World Wars I and II, they found that flashbacks were virtually non-existent . Instead, soldiers then expressed trauma through physical symptoms (somatization) like tremors or "effort syndrome".
The term "flashback" was originally coined in the 1960s to describe the recurring visual hallucinations experienced by LSD users . Flashbacks! Evolution!
Flashbacks and post-traumatic stress disorder: the genesis of a 20th-century diagnosis. National Institutes of Health (.gov) When researchers examined medical records of UK servicemen
If you're interested in the or modern clinical definitions, check out these papers: Flashbacks and post-traumatic stress disorder - PubMed Flashbacks! Evolution!
