"Brain Biomarkers May Help Predict Risk Of Severe PTSD" - Rick Nauert, PhD
A new study suggests the severity of symptoms associated with post-traumatic stress disorder appears to be linked to individual brain wiring and the way the brain is tuned to respond to negative surprises. Daniela Schiller, PhD, associate professor of psychiatry and neuroscience at the Icahn School of Medicine, examined how mental adjustments performed during learning, and the way in which the brain tracks these adjustments, relate to PTSD symptom severity. Combat veterans with varying levels of PTSD symptom severity completed a reversal learning task in which two mildly angry human faces were paired with a mildly aversive stimulus. “What these results tell us is that PTSD symptom severity is reflected in how combat veterans respond to negative surprises in the environment —when predicted outcomes are not as expected — and the way in which the brain is attuned to these stimuli is different,” said Dr. Schiller.
— Daniela Schiller, PhD, Associate Professor, Neuroscience, Psychiatry, Icahn School of Medicine at Mount Sinai