Abstract
Hoarding is a behavior that occurs across a variety of disorders, including hoarding disorder, obsessive-compulsive disorder (OCD), and schizophrenia. Hoarding is also a normative human behavior within certain contexts, including the recent coronavirus disease 2019 pandemic, when individuals became panicked about the availability of products such as toilet paper and antibacterial wipes. Previous research suggests that personality traits and personality disorder symptoms may be linked with hoarding behaviors. The purpose of this review is to provide a snapshot of recent research on hoarding and personality. Most recent research on this topic has focused on hoarding behaviors as the action of stockpiling goods during a pandemic. Research on this area was mixed with regard to extraversion and openness but was strongly suggestive of a link between stockpiling behaviors and increased neuroticism. Hoarding in the context of OCD was linked with lower levels of both extraversion and conscientiousness. Patients with hoarding disorder almost universally have clinically elevated levels of personality disorder traits. The directions of observed associations between five-factor model personality traits and hoarding behaviors differ across diagnostic and geographic contexts. Additional research is needed with participants who meet diagnostic criteria for hoarding disorder.
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