A study has shed light on the neurocomputational contributions to the development of post-traumatic stress disorder (PTSD) in combat veterans. The findings, published in Nature Neuroscience, revealed distinct patterns for how the brain and body respond to learning danger and safety depending on the severity of PTSD symptoms. These findings could help explain why symptoms of PTSD can be severe for some people but not others. The study was funded in part by the National Institute of Mental Health, part of the National Institutes of Health.
“Researchers have thought that the experience of PTSD, in many ways, is an overlearned response to survive a threatening experience,” said Susan Borja, Ph.D., chief of the NIMH Dimensional Traumatic Stress Research Program. “This study clarifies that those who have the most severe symptoms may appear behaviorally similar to those with less severe symptoms, but are responding to cues in subtly different, but profound, ways.”