English to Spanish Medical Psychology Psychiatry

Participants Sixteen Vietnam veterans with combat-related PTSD (PTSD group), 15 combat-exposed Vietnam veterans without PTSD (combat control group), and 15 age- and sex-matched healthy controls (normal control group).
Main Outcome Measures We used positron emission tomography to study regional cerebral blood flow while participants viewed complex visual pictures with negatively ***valenced/aversive***, nonaversive ("neutral"), and blank pictures. Psychophysiologic and emotional self-report data were also recorded.