Science Fair Project Encyclopedia
- For other things named "OCD", see OCD (disambiguation). For other types of "obsession", see obsession (disambiguation). For other types of "compulsion", see compulsion (disambiguation).
Obsessive-compulsive disorder (OCD) is a brain disorder, and more specifically, an anxiety disorder. OCD is manifested in a variety of forms, but is most commonly characterized by a subject's obsessive drive to perform a particular task or set of tasks, compulsions commonly termed rituals.
OCD should be distinguished from the similarly named but notably different obsessive-compulsive personality disorder, which psychiatric guidelines define as a personality characteristic rather than an anxiety disorder.
The phrase "obsessive-compulsive" has worked its way into the wider American lexicon, and is often used in an offhanded sense to describe someone who is meticulous or absorbed in a cause. Such casual references obviously should not be conflated with clinical diagnoses of obsessive-compulsive disorder. It is also important to distinguish OCD from other types of anxiety, including the routine tension and stress that appear throughout life. A person who shows signs of infatuation or fixation with a subject, or displays traits such as perfectionism, is not necessarily stricken with OCD, a specific and well-defined disorder.
Symptoms and prevalence
Modern research has revealed that OCD is much more common than previously thought. An estimated two to three percent of the population of the United States is thought to have OCD or display OCD-like symptoms. Because of the condition's personal nature, and the lingering stigma that surrounds it, there may be many unaccounted OCD sufferers, and the above percentages could be even higher.
The typical OCD sufferer performs tasks (or compulsions) to seek relief from obsessions. To others, these tasks may appear simple and unnecessary. But for the sufferer, such tasks can feel critically important, and must be performed in particular ways for fear of dire consequences and to stop the stress build up. Examples of these tasks: repeatedly checking that one's parked car has been locked before leaving it; turning lights on and off a set number of times before exiting a room; repeatedly washing hands at regular intervals throughout the day.
OCD rituals are often bound up with intricate detail -- detail that may seem arbitrary to outsiders. A smoker with OCD, for instance, may argue with herself that quitting cigarettes is possible only on the 13th or 27th of a month, and only when she has possession of four cigarettes at noon.
Most with OCD are aware that such thoughts and behavior are not rational, but feel bound to comply with them to fend off fears of panic or dread. Because sufferers are consciously aware of this irrationality but feel helpless to push it away, OCD is often regarded as one of the most vexing and frustrating of the major anxiety disorders.
Other people with OCD are not aware of anything abnormal with them; they will readily explain why their actions are rational, and it is usually impossible to convince them otherwise. This form of OCD resembles delusional disorder. Eventually their obsessions will become so severe they need help to overcome what began as an irritating, time wasting problem.
Obsessions are thoughts and ideas that the sufferer cannot stop thinking about. Common OCD obsessions include fears of acquiring disease, getting hurt or causing harm to someone. Obsessions are typically automatic, frequent, distressing, and difficult to control or put an end to by themselves. A sufferer will almost always obsess over something which he or she is most afraid of. People with OCD who obsess over hurting themselves or others are actually less likely to do so than the average person.
Compulsions refer to actions that the person performs, usually repeatedly, in an attempt to make the obsession go away. For an OCD sufferer who obsesses about germs or contamination, for example, these compulsions often involve repeated cleansing or meticulous avoidance of trash and mess. Most of the time the actions become so regular that it is not a noticeable problem. Common compulsions include excessive washing and cleaning; checking; hoarding; repetitive actions such as touching, counting, arranging and ordering; and other ritualistic behaviors that the person feels will lessen the chances of provoking an obsession. Compulsions can be observable -- washing, for instance -- but they can also be mental rituals such as repeating words or phrases, or counting.
Not all OCD sufferers engage in compulsive behavior. Recent years have seen increased diagnoses of Pure Obsessional OCD, or "Pure O." This form of OCD is manifested entirely within the mind, and involves obsessive ruminations triggered by certain thoughts. These mental "snags" can be debilitating, often tying up a sufferer for hours at a time. At this writing (2004), Pure O is considered the trickiest form of OCD to treat, though headway continues to be made by specialists such as Dr. Steven Phillipson .
OCD is different from behaviors such as gambling addiction and overeating. People with these disorders typically experience at least some pleasure from their activity; OCD sufferers do not actively want to perform their compulsive tasks, and experience no tangible pleasure in doing so.
OCD is placed in the anxiety class of mental illness, but like many chronic stress disorders it can lead to depression over time. The constant stress of the condition can cause sufferers to develop a deadening of spirit, a numbing frustration, or sense of hopelessness. OCD's effects on day-to-day life -- particularly its substantial consumption of time -- can produce difficulties with work, finances and relationships
Causes and related disorders
Recent research has revealed a possible genetic mutation that could be the cause of OCD. Researchers funded by the National Institutes of Health have found a mutation in the human serotonin transporter gene, hSERT, in unrelated families with OCD.
Violence is rare among OCD sufferers, but the disorder is often debilitating to the quality of life. Also, the psychological self-awareness of the irrationality of the disorder can be painful. For people with severe OCD, it may take several hours a day to carry out the compulsive acts. To avoid perceived obsession triggers, they also often avoid certain situations or places altogether.
Some people with OCD also suffer from conditions such as Tourette syndrome, attention deficit disorder, trichotillomania and hypochondria. Other minor side problems that come along with these disorders are scratching, picking, and nail biting.
OCD can be treated with a variety of anti-depressants and with behavioral therapy.
Medication treatments include selective serotonin reuptake inhibitors such as paroxetine (Paxil, Aropax), sertraline (Zoloft), fluoxetine (Prozac), and fluvoxamine (Luvox) as well as the tricyclic antidepressants, and in particular clomipramine (Anafranil). Some medications like Gabapentin have also been found to be useful in the treatment of OCD. Symptoms tend to return, however, once the drugs are discontinued.
Recent research has found increasing evidence that opioids may significantly reduce OCD symptoms, though the addictive property of these drugs likely stands as an obstacle to their sanctioned approval for OCD treatment. Anecdotal reports suggest that some OCD sufferers have successfully self-medicated with opioids such as Ultram and Vicodin, though the off-label use of such painkillers is not encouraged, again because of their addictive qualities.
Hallucinogens, such as psilocybin (an active ingredient in "magic mushrooms") and LSD, have also shown promise -- reducing symptoms for up to several months after ingestion in some people. The US FDA has approved a study to determine their effectiveness that is being conducted at the University of Arizona.
Aside from drugs, studies show promising long-term remission of symptoms through cognitive-behavioral therapy that uses the principles of extinction and habituation. A therapist will show the patient something that may trigger the compulsion and attempt to show them another way to deal with it other than what they usually do. Many centers around the world have been studying these techniques with much success during the past two decades.
OCD in literature and film
Justin Green's 1972 comic book Binky Brown Meets the Holy Virgin Mary was based on the artist's childhood experience of what was later diagnosed as OCD. Green suffered from arranging, cleansing, and avoidance compulsions related to intrusive religious and sexual fears.
The television show Friends featured Courtney Cox Arquette's character Monica Geller, who displayed characteristics of OCD. Her apartment was always clean and she had objects in precise points and various clocks at precise times for reasons only she thought were rational, among other things. She would also notice if even one tiny thing in her apartment was off.
In the TV show Joey, Joey Tribbiani's executive producer, Lauren (played by Lucy Liu), suffers from OCD. She goes crazy when she thinks she left her oven on and when someone knocks, Lauren has to knock on something.
Episodes twelve and thirteen of season three of the TV series Scrubs featured a guest character played by Michael J. Fox that suffered from OCD. This is particularly interesting because at that point in his life, Michael J. Fox already knew he had Parkinson's disease.
Famous/celebrity OCD sufferers
These figures have either publicly talked about their OCD, or otherwise been identified with the disorder:
- Howard Hughes
- Roseanne Barr
- Howie Mandel
- Martin Scorsese
- Howard Stern
- Marc Summers
- Stanley Kubrick
- Harrison Ford
- Jane Horrocks
- Penelope Cruz
- Billy Bob Thornton
- Warren Zevon
- John List
- Thomas 'Stonewall' Jackson
- John George Haigh
- Andrew Kehoe
- Volkert van der Graaf
- Paul Gascoigne
- Nikola Tesla
- John Melendez
- Kathie Lee Gifford
- Ludwig van Beethoven
- Donald Trump
- Cameron Diaz
- Albert Einstein
- Ian Puleston-Davies
- David Beckham
- Charlie Sheen
- Joey Ramone
- Leonardo DiCaprio
- Rose McGowan
- The Boy Who Couldn't Stop Washing, ISBN 0451172027, by Judith L. Rapoport. A highly readable introduction to OCD, with case histories.
- Edna B. Foa & Reid Wilson, Stop Obsessing! How To Overcome Your Obsessions And Compulsions, Bantam Books, 1st Edition (July 2001), ISBN 0553381172. A self-help text for OCD patients, clear, precise and practical.
- Symptoms of Obsessive-Compulsive Disorder
- The Obsessive-Compulsive Foundation (OCF)
- The Austin Center for the Treatment of Obsessive-Compulsive Disorder (ACTOCD)
- The OCD Centre, UK
- Articles by Dr. Steven Phillipson: http://www.ocdonline.com/articlesphillipson.htm
- National Institute of Mental Health NIMH
- OCD mutant gene found
- University of Arizona Psilocybin Study Protocol (maps.org)
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