TY - JOUR PY - 2019// TI - Impaired inhibition as an intermediate phenotype for PTSD risk and treatment response JO - Progress in neuro-psychopharmacology and biological psychiatry A1 - van Rooij, Sanne J. H. A1 - Jovanovic, Tanja SP - 435 EP - 445 VL - 89 IS - N2 - Inhibition of fear involves learning and then appropriately responding to safety signals, and has been shown to be impaired in PTSD patients. Response inhibition refers to cognitive control and likely uses the same prefrontal cortex circuits as fear inhibition, and has also been implicated in PTSD. Impaired inhibition can serve as an intermediate phenotype for PTSD and can be measured with neuroimaging and psychophysiological tools. We first review the neurobiological mechanisms of fear and response inhibition. Next, we summarize the functional magnetic resonance imaging (fMRI) and psychophysiological studies using fear and response inhibition paradigms in PTSD patients. Finally, we evaluate the theranostic role of impaired inhibition in PTSD risk and treatment response.

Copyright © 2018. Published by Elsevier Inc.

Language: en

LA - en SN - 0278-5846 UR - http://dx.doi.org/10.1016/j.pnpbp.2018.10.014 ID - ref1 ER -