Stress may have an effect on the recall of declarative memories.
Posttraumatic stress disorder (PTSD) emerges after exposure to a traumatic event eliciting fear, horror or helplessness that involves bodily injury, the threat of injury, or death to one's self or another person[REF] The chronic stress in PTSD contributes to an observed decrease in hippocampal volume and declarative memory deficits [REF].