Hannah C Levy1, Andrew Poppe2, Jaryd Hiser3, Bethany M Wootton4, Lauren S Hallion5, David F Tolin6, Michael C Stevens7. 1. Anxiety Disorders Center, Institute of Living, Hartford, Connecticut. Electronic address: hannah.levy@hhchealth.org. 2. Olin Neuropsychiatry Research Center, Institute of Living, Hartford, Connecticut. 3. Anxiety Disorders Center, Institute of Living, Hartford, Connecticut. 4. Anxiety Disorders Center, Institute of Living, Hartford, Connecticut; Discipline of Clinical Psychology, Graduate School of Health, University of Technology Sydney, Sydney, South Wales, Australia. 5. Anxiety Disorders Center, Institute of Living, Hartford, Connecticut; Department of Psychology, University of Pittsburgh, Pittsburgh, Pennsylvania. 6. Anxiety Disorders Center, Institute of Living, Hartford, Connecticut; Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut. 7. Olin Neuropsychiatry Research Center, Institute of Living, Hartford, Connecticut; Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut.
Abstract
BACKGROUND: Individuals with hoarding disorder (HD) demonstrate exaggerated subjective distress and hyperactivation of cingulate and insular cortex regions when discarding personal possessions. No prior study has sought to determine whether this subjective distress is associated with specific profiles of abnormal brain function in individuals with HD. METHODS: We used multimodal canonical correlation analysis plus joint independent component analysis to test whether five hoarding-relevant domains of subjective distress when deciding to discard possessions (anxiety, sadness, monetary value, importance, and sentimental attachment) are associated with functional magnetic resonance imaging-measured whole-brain functional connectivity in 72 participants with HD and 44 healthy controls. RESULTS: Three extracted components differed between HD participants and healthy control subjects. Each of these components depicted an abnormal profile of functional connectivity in HD participants relative to control subjects during discarding decisions, and a specific distress response profile. One component pair showed a relationship between anxiety ratings during discarding decisions and connectivity among the pallidum, perirhinal ectorhinal cortex, and dorsolateral prefrontal cortex. Another component comprised sadness ratings during discarding decisions and connectivity in the pallidum, nucleus accumbens, amygdala, and dorsolateral prefrontal cortex. The third component linked HD brain connectivity in several dorsolateral prefrontal cortex regions with perceived importance ratings during discarding decisions. CONCLUSIONS: The findings indicate that in patients with HD, the subjective intensity of anxiety, sadness, and perceived possession importance is related to abnormal functional connectivity in key frontal and emotional processing brain regions. The findings are discussed in terms of emerging neurobiological models of HD.
BACKGROUND: Individuals with hoarding disorder (HD) demonstrate exaggerated subjective distress and hyperactivation of cingulate and insular cortex regions when discarding personal possessions. No prior study has sought to determine whether this subjective distress is associated with specific profiles of abnormal brain function in individuals with HD. METHODS: We used multimodal canonical correlation analysis plus joint independent component analysis to test whether five hoarding-relevant domains of subjective distress when deciding to discard possessions (anxiety, sadness, monetary value, importance, and sentimental attachment) are associated with functional magnetic resonance imaging-measured whole-brain functional connectivity in 72 participants with HD and 44 healthy controls. RESULTS: Three extracted components differed between HD participants and healthy control subjects. Each of these components depicted an abnormal profile of functional connectivity in HD participants relative to control subjects during discarding decisions, and a specific distress response profile. One component pair showed a relationship between anxiety ratings during discarding decisions and connectivity among the pallidum, perirhinal ectorhinal cortex, and dorsolateral prefrontal cortex. Another component comprised sadness ratings during discarding decisions and connectivity in the pallidum, nucleus accumbens, amygdala, and dorsolateral prefrontal cortex. The third component linked HD brain connectivity in several dorsolateral prefrontal cortex regions with perceived importance ratings during discarding decisions. CONCLUSIONS: The findings indicate that in patients with HD, the subjective intensity of anxiety, sadness, and perceived possession importance is related to abnormal functional connectivity in key frontal and emotional processing brain regions. The findings are discussed in terms of emerging neurobiological models of HD.
Authors: Randy L Buckner; Fenna M Krienen; Angela Castellanos; Julio C Diaz; B T Thomas Yeo Journal: J Neurophysiol Date: 2011-07-27 Impact factor: 2.714
Authors: David F Tolin; Bethany M Wootton; Hannah C Levy; Lauren S Hallion; Blaise L Worden; Gretchen J Diefenbach; James Jaccard; Michael C Stevens Journal: J Consult Clin Psychol Date: 2019-04-22
Authors: Lorena Fernández de la Cruz; Danielle Landau; Alessandra C Iervolino; Susan Santo; Alberto Pertusa; Satwant Singh; David Mataix-Cols Journal: J Anxiety Disord Date: 2013-02-14
Authors: Jing Sui; Shile Qi; Theo G M van Erp; Juan Bustillo; Rongtao Jiang; Dongdong Lin; Jessica A Turner; Eswar Damaraju; Andrew R Mayer; Yue Cui; Zening Fu; Yuhui Du; Jiayu Chen; Steven G Potkin; Adrian Preda; Daniel H Mathalon; Judith M Ford; James Voyvodic; Bryon A Mueller; Aysenil Belger; Sarah C McEwen; Daniel S O'Leary; Agnes McMahon; Tianzi Jiang; Vince D Calhoun Journal: Nat Commun Date: 2018-08-02 Impact factor: 14.919