Hoarding pattern studied in 28 adult female albino rats indicated cyclic changes in hoarding corresponding to alterations in estrus cycle. It was observed that the hoarding score was maximum at proestrus and the least at diestrus. Animals ovariectomised at proestrus maintained higher hoarding score and those ovariectomised at diestrus stablised on lower hoarding score. Progesterone administrati...

Compulsive hoarding is a common and often disabling neuropsychiatric disorder. This article reviews the phenomenology, etiology, neurobiology, and treatment of compulsive hoarding. Compulsive hoarding is part of a discrete clinical syndrome that includes difficulty discarding, urges to save, clutter, excessive acquisition, indecisiveness, perfectionism, procrastination, disorganization, and avo...

Hoarding disorder (HD) is characterized by difficulty discarding, clutter, and frequently excessive acquiring. Theories have pointed to intense negative emotional reactions (e.g., sadness) as one factor that may play a critical role in HD's etiology. Preliminary work with an analogue sample indicated that more intense negative emotions following emotional films were linked with greater hoarding...

Although much has been written about hoarding recently, excessive acquisition in hoarding has remained relatively unexplored. The present study examined the types and role of acquisition and acquisition avoidance in hoarding. Of the 852 people who identified themselves as having problems with hoarding and volunteered for an internet study, 526 completed principle study measures, and 369 of thes...

issue of the Journal, implicates that there is enough research-based evidence to justify that compulsive hoarding constitutes a discrete entity, apart from obsessive-compulsive disorder (OCD) as such, to be placed separately in the future DSM-V classification system. The important article by Jack Samuels, Ph.D., et al. (2), also published in the March 2007 issue of the Journal, contains several...

In this review, I will present an overview of the development of the field of scatter hoarding studies. Scatter hoarding is a conspicuous behaviour and it has been observed by humans for a long time. Apart from an exceptional experimental study already published in 1720, it started with observational field studies of scatter hoarding birds in the 1940s. Driven by a general interest in birds, se...

Little is known about the prevalence and correlates of hoarding behavior in the community. We estimated the prevalence and evaluated correlates of hoarding in 742 participants in the Hopkins Epidemiology of Personality Disorder Study. The prevalence of hoarding was nearly 4% (5.3%, weighted) and was greater in older than younger age groups, greater in men than women, and inversely related to ho...

The presence of hoarding symptoms in patients with obsessive-compulsive disorder (OCD) is a commonly reported phenomenon. How these symptoms are to be understood is less clear. The extent to which hoarding fits with other symptoms of OCD by considering its diagnostic utility and underlying cognitive processes is evaluated. In the first study, hoarding symptoms did not differentiate OCD patients...

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We describe the Temperament and Character Inventory personality traits, demographic features, physical and mental health variables associated with hoarding behaviour in a random community sample of midlife participants in New Zealand. A sample of 404 midlife participants was recruited to a study of ageing. To assess hoarding behaviours participants completed the Savings Inventory-Revised (SI-R)...