Cognitive functioning in compulsive hoarding

► Obsessive-compulsive disorder (OCD) and compulsive hoarding (CH) often co-occur. ► It is important to determine whether OCD and CH are related or distinct syndromes. ► We compare OCD and CH on neurocognitive domains. ► Implicit memory appears to be impaired in CH and OCD, albeit more severely so in the former. ► OCD patients seem to perform more poorly on a decision making test than the compulsive hoarders.