Obsessive beliefs and neurocognitive flexibility in obsessive-compulsive disorder.

A substantial proportion of individuals with obsessive-compulsive disorder (OCD) do not endorse the dysfunctional beliefs proposed by cognitive models of OCD to be important in the onset and maintenance of symptoms. Previous research has attempted to characterize Low and High obsessive beliefs groups in terms of cognitive and symptom correlates to distil potential etiological differences in these subgroups of OCD patients. The current study sought to further examine potential neurocognitive differences between obsessive beliefs subgroups. Performance on the Wisconsin Card Sorting Test (WCST) was compared between a Low Beliefs OCD subgroup, a High Beliefs OCD subgroup, and two anxious control groups: Panic Disorder with Agoraphobia (PDA) and Social Phobia (SP). The High Beliefs OCD subgroup performed significantly poorer on WCST subscales compared to the other diagnostic groups. These findings were not accounted for by severity of OCD or depressive symptoms. The Low Beliefs OCD subgroup performed similar to the anxiety disorder control groups. The results suggest a potential interplay between heightened obsessive beliefs and neurocognitive inflexibility.