CharacteristicsWhile there is no definition of compulsive hoarding in accepted diagnostic criteria (such as the current DSM), Frost and Hartl (1996) provide the following defining features:[2]
The hoarder may mistakingly believe that the hoarded items are very valuable, or the hoarder may know that they are useless. A hoarder of the first kind may show off a cutlery set claiming it to be made of silver and mother-of-pearl, disregarding the fact that the packaging clearly states the cutlery is made of steel and plastic. A hoarder of the second type may have a fridge filled with food items that expired months ago without ever eating them, but would vehemently resist any attempts from relatives to dispose of the unusable food items. Case studyThe following (edited) case study is taken from a published account of compulsive hoarding:[3]
Subtypes and related conditionsOCDIt is not clear whether compulsive hoarding is a condition in itself, or simply a symptom of other related conditions.[4] Several studies have reported a correlation between hoarding and the presence and / or severity of obsessive-compulsive disorder (OCD). Hoarding behaviour is also related to obsessive-compulsive personality disorder (OCPD). There may be an overlap with a condition known as impulse control disorder (ICD), particularly when compulsive hoarding is linked to compulsive buying or acquisition behaviour. However, some people displaying compulsive hoarding behaviour show no other signs of what is usually considered to be OCD, OCPD or ICD. Those diagnosed with attention-deficit hyperactivity disorder (ADHD) often have hoarding tendencies.[5] Book hoardingBibliomania is an obsessive-compulsive disorder involving the collecting or hoarding of books to the point where social relations or health are damaged. One of several psychological disorders associated with books, bibliomania is characterized by the collecting of books which have no use to the collector nor any great intrinsic value to a genuine book collector. The purchase of multiple copies of the same book and edition and the accumulation of books beyond possible capacity of use or enjoyment are frequent symptoms of bibliomania. Animal hoardingAnimal hoarding involves keeping higher than usual numbers of animals as pets without having the ability to properly house or care for them, while at the same time denying this inability. Compulsive hoarding can be characterized as a symptom of obsessive-compulsive disorder rather than deliberate cruelty towards animals. Hoarders are deeply attached to their pets, and find it extremely difficult to let the pets go. They typically cannot comprehend that they are harming their pets by failing to provide them with proper care. Hoarders tend to believe that they provide the right amount of care for their pets. The American Society for the Prevention of Cruelty to Animals provides a "Hoarding Prevention Team", which works with hoarders to help them attain a manageable and healthy number of pets.[6] Along with other compulsive hoarding behaviours, it is linked in the DSM-IV to obsessive-compulsive disorder and obsessive-compulsive personality disorder.[7] Alternatively, animal hoarding could be related to addiction, dementia, or even focal delusion.[8] Animal hoarders display symptoms of delusional disorder in that they have a “belief system out of touch with reality”.[9] Virtually all hoarders lack insight into the extent of deterioration in their habitations and on the health of their animals, refusing to acknowledge that anything is wrong.[10] Delusional disorder is an effective model in that it offers an explanation of hoarder’s apparent blindness to the realities of their situations. Another model that has been suggested to explain animal hoarding is attachment disorder, which is primarily caused by poor parent-child relationships during childhood.[11] As a result, those suffering from attachment disorder may turn to possessions, such as animals, to fill their need for a loving relationship. Interviews with animal hoarders have revealed that often hoarders experienced domestic trauma in childhood, providing evidence for this model.[11] Perhaps the strongest psychological model put forward to explain animal hoarding is obsessive-compulsive disorder (OCD). Physiology and treatmentBrain imaging studies (PET) have shown that the cerebral glucose metabolism patterns seen in OCD hoarders were distinct from the patterns in non-hoarding OCD. The most notable difference in these patterns was the decreased activity of the dorsal anterior cingulated gyrus, a part of the brain that is responsible for focus, attention, and decision making.[12] A 2004 University of Iowa study found that damage to the frontal lobes of the brain can lead to poor judgment and emotional disturbances, while damage to the right medial prefrontal cortex of the brain tends to cause compulsive hoarding. [13] OCD disorders are treated with various antidepressants: from the Tricyclic antidepressant family clomipramine (brand name Anafranil); and from the SSRI families paroxetine (Paxil), fluoxetine (Prozac), fluvoxamine (Luvox), sertraline (Zoloft), and citalopram (Celexa). With existing drug therapy OCD symptoms can be controlled, but not cured. Several of these compounds have been tested successfully in conjunction with OCD hoarding, but paroxetine in particular is indicated for treatment of compulsive hoarding.[14] A 2006 study of this usage of the drug to treat compulsive hoarding was conducted by the University of California, San Diego. OCD disorders are also treated with psychotherapy. See also
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