Academic Journal
Reaction time variability and attentional impairment in hoarding disorder.
| Τίτλος: | Reaction time variability and attentional impairment in hoarding disorder. |
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| Συγγραφείς: | Worden BL; Hartford Hospital/Institute of Living Anxiety Disorders Center, 200 Retreat Avenue, Stearns Bldg, Hartford, CT, 06106, USA. Electronic address: Blaise.worden@hhchealth.org., Manjarrez E; Benemerita Universidad Autonoma de Puebla, 14 Sur 6301, Col. San Manuel, Puebla, CP 72570, Mexico. Electronic address: elias.manjarrez@correo.buap.mx., Timpano KR; University of Miami, Department of Psychology, Program for Anxiety, Stress, and OCD (PASO), USA. Electronic address: k.timpano@umiami.edu. |
| Πηγή: | Behaviour research and therapy [Behav Res Ther] 2026 Oct; Vol. 205, pp. 105135. Date of Electronic Publication: 2026 Aug 07. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Elsevier Science Country of Publication: England NLM ID: 0372477 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-622X (Electronic) Linking ISSN: 00057967 NLM ISO Abbreviation: Behav Res Ther Subsets: MEDLINE |
| Imprint Name(s): | Publication: Oxford : Elsevier Science Original Publication: Oxford [etc.] |
| Ιατρικοί όροι (MeSH): | Hoarding Disorder*/psychology , Hoarding Disorder*/physiopathology , Hoarding Disorder*/complications , Reaction Time*/physiology , Attention*/physiology, Decision Making/physiology ; Attention Deficit Disorder with Hyperactivity/psychology ; Anxiety/psychology ; Humans ; Female ; Male ; Middle Aged ; Neuropsychological Tests ; Adult ; Aged ; Case-Control Studies |
| Περίληψη: | Attention appears to be impaired in hoarding disorder (HD), although it remains unclear whether this can be conceptualized as co-occurring ADHD or intrinsic to hoarding pathology. Self-reported cognitive impairment tends to be inconsistent in HD, with individuals tending to overestimate cognitive impairment compared with performance on neuropsychological tests. A behavioral index of attentional impairment during decision making, ex-Gaussian modeling of reaction times, has been commonly used as an index of inattention in ADHD, with more skew (i.e., higher tau values) suggestive of attentional lapses. We used a sample of 43 individuals with hoarding disorder who completed a decision task, comparing their ex-Gaussian reaction time curves, ex-Gaussian vectors, and similarities between them, to samples of individuals high in anxiety and depression ("anxiety and mood", n = 25) and nonclinical controls ("healthy control," HC, n = 39). Results indicated that individuals with HD exhibited tau (and sigma and mu) profiles in their scalar and vectorial metrics that were like those of the AM and HC groups, suggesting a lack of ADHD-like attentional lapses. However, the HD group showed significantly greater within-group variance than the other two diagnostic groups, suggesting substantial within-HD heterogeneity, and possibly implying inattentive and non-inattentive subtypes of HD. Hence, HD shows heterogeneous RT dynamics without generalized attentional slowing. (Copyright © 2026 Elsevier Ltd. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:Blaise Worden, Ph.D. reports financial support was provided by National Institutes of Health. Kiara Timpano, Ph.D. reports financial support was provided by National Institutes of Health. Elias Manjarrez, Ph.D. reports financial support was provided by Cátedra Marcos Moshinsky. Blaise Worden, Ph.D. receives royalties from Wiley & Sons and Routledge publishers. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Anxiety; Attention; Decision making; Ex-Gaussian; Hoarding disorder; Reaction time |
| Entry Date(s): | Date Created: 20260817 Date Completed: 20260921 Latest Revision: 20260921 |
| Update Code: | 20260922 |
| DOI: | 10.1016/j.brat.2026.105135 |
| PMID: | 42607400 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 1873-622X |
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| DOI: | 10.1016/j.brat.2026.105135 |