Elgie Melissa, Cameron Duncan H, Rowa Karen, Hall Geoffrey B, McCabe Randi E, MacKillop James, Crosbie Jennifer, Burton Christie L, Soreni Noam
Student, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada.
Postdoctoral Fellow, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada.
Bull Menninger Clin. 2021 Fall;85(4):335-357. doi: 10.1521/bumc.2021.85.4.335.
Executive functions (EF) deficits are hypothesized to be a core contributor to hoarding symptoms. EF have been studied in adult hoarding populations, but studies in youth are lacking. The current study compared multiple EF subdomains between youth with obsessive-compulsive disorder (OCD) and youth with OCD and hoarding symptoms. Forty youth (8-18 years old) with a primary diagnosis of OCD were recruited. Participants were divided by hoarding severity on the Child Saving Inventory (CSI) into either the "hoarding group" (upper 33.3%) or the "low-hoarding group" (lower 66.7%). Groups were compared on EF tasks of cognitive flexibility, decision-making, and inhibitory control. Youth in the hoarding group exhibited significantly higher cognitive flexibility and lowered perseveration than the low-hoarding group. Hoarding and low-hoarding groups did not differ in any other EF subdomain. Hoarding symptoms in youth with OCD were not associated with deficits in EF subdomains; instead, youth who hoard exhibited higher cognitive flexibility compared to youth with low hoarding symptoms.
执行功能（EF）缺陷被认为是囤积症状的核心促成因素。EF已在成年囤积人群中进行了研究，但缺乏针对青少年的研究。当前的研究比较了患有强迫症（OCD）的青少年和患有OCD及囤积症状的青少年在多个EF子领域的情况。招募了40名初步诊断为OCD的青少年（8至18岁）。参与者根据儿童储蓄量表（CSI）上的囤积严重程度分为“囤积组”（前33.3%）或“低囤积组”（后66.7%）。对两组在认知灵活性、决策和抑制控制等EF任务上进行了比较。囤积组的青少年比低囤积组表现出显著更高的认知灵活性和更低的固执性。囤积组和低囤积组在其他任何EF子领域均无差异。患有OCD的青少年的囤积症状与EF子领域的缺陷无关；相反，与低囤积症状的青少年相比，囤积的青少年表现出更高的认知灵活性。
