The results of the SDT task indicated that perturbed reali
ty discrimination was primarily related to vulnerability to hallucinations and not dissociation. When patients belonging to the pathological dissociation group were compared with the non-dissociative patients, we found no significant differences in terms of signal detection performance. Conversely, patients in the hallucinating and remitted hallucinators groups had significantly lower B scores(i e. greater response bias) compared with non-hallucinating patients and healthy controls.