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Abstract In this article, we review research supporting the modified Stroop color‐naming paradigm as a means for assessing intrusive cognition in patients with posttraumatic stress disorder (PTSD). Because Stroop interference reflects involuntary semantic activation, delayed color‐naming of trauma‐related words can provide an objective index of intrusive cognition that is not based on self‐report. In a replication and extension of previous research, we found that Vietnam combat veterans with PTSD exhibited Stroop interference for trauma‐related words but not for other threat words, positive words, or neutral words. Also, we provide reliability and validity data on the paradigm.
McNally et al. (Fri,) studied this question.