شرطی سازی ترس در اختلال استرس پس از سانحه: شواهد برای انقراض با تاخیر پاسخ های اتونوم، تجربی و رفتاری

In contrast to the nTE group, PTSD patients showed delayed extinction of SCRs to the CS+CS+. Online ratings of valence and US-expectancy as well as the behavioural test confirmed this pattern. These findings point to a deficit in extinction learning and highlight the role of affective valence appraisals and cognitive biases in PTSD. In addition, there was some evidence that a subgroup of PTSD patients had difficulties in learning the CS–US contingency, thereby providing preliminary evidence of reduced discrimination learning.