Inattention, but not OCD, predicts the core features of Hoarding Disorder
Section snippets
Participants
Eighty-seven adult participants met inclusion criteria of age 18–65; absence of lifetime bipolar, psychotic, or substance use disorders; absence of metal in the body or pregnancy (participants were primarily being recruited for a functional magnetic resonance imaging study), and (for the clinical groups) symptom duration of 1 year or more. Furthermore, participants were included if they could be classified into one of three diagnostic groups: Hoarding (primary diagnosis of hoarding, no
Sample characteristics
Table 1 shows that the OCD group was younger on average, and consisted of more men, than were the hoarding and healthy control groups. Therefore, subsequent analyses controlled for age and gender. Comorbid anxiety and depressive disorders were common in both the hoarding and OCD groups, and the hoarding group had a higher rate of depressive disorders than did the OCD group. Not surprisingly, the hoarding group exhibited higher SI-R scores than did the other two groups, and the OCD group
Discussion
Until very recently, hoarding has received relatively little empirical attention. This may be, in part, because of the assumption that hoarding was one of many symptoms of OCD. Increasingly, this notion is being challenged, with several authors calling for hoarding to become a unique diagnosis in DSM-V (Abramowitz et al., 2008, Pertusa et al., 2010, Phillips, 2009). Thus, it is important to re-examine the cognitive, emotional, behavioral, and neuropsychological aspects of this disorder in a new
Acknowledgments
This study was funded by NIMH grant #R01MH074934 to Dr. Tolin. The authors thank Dr. Nicholas Maltby and Dr. Melissa Norberg for their assistance.
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