Poor memory confidence mediates the association between inattention symptoms and hoarding severity and impairment

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Publisher: Elsevier B.V.
Document Type: Article
Length: 326 words

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Abstract :

To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1016/j.jocrd.2015.10.003 Byline: Lauren S. Hallion [lauren.hallion@hhchealth.org] (a,*), Gretchen J. Diefenbach (a,b), David F. Tolin (a,b) Keywords Hoarding disorder; Compulsive hoarding; ADHD; Memory confidence; Mediation analysis Highlights * Inattention symptoms have been linked to increased hoarding severity. * We used serial mediation to test mechanisms linking inattention to HD severity. * Memory confidence mediated the relationship between inattention and HD severity. * Final model: inattention [right arrow] poor memory confidence [right arrow] saving [right arrow] clutter [right arrow] impairment. * The final model accounted for 90% of the variance in HD-related impairment. Abstract Hoarding disorder (HD) is characterized by excessive saving and difficulty discarding possessions, which results in severe clutter and functional impairment. HD shows patterns of elevated comorbidity with the inattentive subtype of attention deficit-hyperactivity disorder (ADHD-I). ADHD-I symptoms are associated with more severe HD pathology (), but the mechanisms underlying this association are unclear. The present study used serial mediation analyses in a sample of individuals with HD (n=32) and healthy controls (n=26) to test one potential pathway: ADHD-I symptoms lead to poor memory confidence, which leads to excessive saving of possessions to facilitate remembering, which in turn leads to clutter and corresponding functional impairment. The model provided a strong fit for the data, accounting for over 90% of the variance in functional impairment. Alternate models that did not include ADHD-I symptoms and poor memory confidence provided a weaker fit. These findings support and extend leading cognitive-behavioral conceptualizations of HD (e.g., ) and point to inattention symptoms and memory confidence as potential targets for HD prevention and intervention research. Author Affiliation: (a) Anxiety Disorders Center/Center for CBT Institute of Living/Hartford Hospital, 200 Retreat Avenue, Hartford, CT 06106, USA (b) Yale School of Medicine, 800 Howard Ave #2, New Haven, CT 06519, USA * Corresponding author. Article History: Received 9 September 2015; Revised 5 October 2015; Accepted 8 October 2015

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Gale Document Number: GALE|A523315799