Hoarding Disorder (HD), defined as the acquisition of and failure to discard large volumes of possessions, resulting in clutter that precludes normal use of living spaces, is a common and debilitating condition. Although hoarding has historically been conceptualized as a variant of obsessive-compulsive disorder (OCD), increasing evidence suggests that hoarding might be more closely associated w...

Food is acquired (obtained by foraging) and frequently stored (hoarded) across animal taxa, including humans, but the physiological mechanisms underlying these behaviors are virtually unknown. We found that peptides that stimulate food intake in rats stimulate food foraging and/or hoarding more than intake in Siberian hamsters. Neuropeptide Y (NPY) is a potent orexigenic peptide that increases ...

Multidisciplinary teams, representing professionals from diverse disciplines, are often involved in addressing difficult ethical dilemmas as they work with older adults who hoard (e.g., resolving conflicts between the older adult's freedom to engage in hoarding behaviors versus individual or public safety). The purpose of this article is threefold: (a) to explore the current use of hoarding tas...

Hoarding disorder is a new mental disorder in DSM-5. It is classified alongside OCD and other presumably related disorders in the Obsessive-Compulsive and Related Disorders chapter. We examined cognitive performance in two distinct groups comprising individuals with both OCD and severe hoarding, and individuals with hoarding disorder without comorbid OCD. Participants completed executive functi...

The advances in mobile technologies predispose the support of learners’ and teachers’ activities on the move. As the nowadays’ infrastructure still does not provide cheap ‘always on’ connection at every place and every moment, a mobile learning system should provide also support for offline usage of learning material. The process of automatically selecting and pre-fetching content to be used du...

Many animals use cues for small-scale navigation, including beacons, landmarks, compasses and geometric properties. Scatter-hoarding animals are a unique system to study small-scale navigation. They have to remember and relocate many individual spatial locations, be fairly accurate in their searching and have to remember these locations for long stretches of time. In this article, we review wha...

Self-control is the capacity to exert control over one's behavior and is necessary for directing personal behavior toward achieving goals. Self-control has been described as operating within a resource model, and a lack of self-control has been posited as a process that may impact the development or maintenance of various forms of psychopathology. Hoarding disorder is one phenomenon wherein sel...

Article history: Received 21 December 2015 Received in revised form 12 April 2016 Accepted 15 April 2016 Available online xxxx Hoarding behaviours are characterised by the acquisition of and failure to discard possessions, which leads to excessive and often dangerous clutter and significant psychological/emotional distress. The cognitive behaviouralmodel posits that a key aspect in the expressi...

Hoarding, obsessive-compulsive disorder (OCD), and Tourette's disorder (TD) are psychiatric disorders that share symptom overlap, which might partly be the result of shared genetic variation. Population-based twin studies have found significant genetic correlations between hoarding and OCD symptoms, with genetic correlations varying between 0.1 and 0.45. For tic disorders, studies examining the...

BACKGROUND Twin studies of hoarding symptoms indicate low to moderate heritability during adolescence and considerably higher heritability in older samples, suggesting dynamic developmental etiological effects. The aim of the current study was to estimate the relative contribution of additive genetic and environmental effects to hoarding symptoms during adolescence and young adulthood and to es...