Impulse Control Disorders

Definition

Impulse control disorders are a relatively new class of personality disorders characterized by an ongoing inability to resist impulses to perform actions that are harmful to oneself or others. The most common of these are intermittent explosive disorder, kleptomania, pyromania, compulsive gambling disorder, and trichotillomania.

Description

Impulse control disorders include five conditions that involve a recurrent failure to resist impulsive behaviors that harm one's self or others: intermittent explosive disorder, pyromania, kleptomania, trichotillomania, and compulsive gambling disorder. Intermittent explosive disorder involves unusually aggressive and violent outbursts. Pyromania is characterized by repetitive and purposeful fire-setting. Kleptomania involves urges to steal and repetitive acts of unnecessary theft. Trichotillomania is recurrent pulling out of hair. Compulsive gambling disorder is maladaptive, repetitive gambling.

Repetitive self-mutilation is considered by some experts to be a type of impulse control disorder. In this condition, people cause intentional harm to themselves through burning, cutting, or scratching.

Demographics

The incidence of impulse control disorders in children and adolescents is difficult to determine. In general, intermittent explosive disorder, pyromania, and compulsive gambling disorder are more common in boys, while kleptomania is more common in girls.

Causes and symptoms

Exact causes of impulse control disorders are unknown, but may be linked to genetics, family environment, and/or neurological factors. Some research suggests that impulse control disorders are linked to certain hormones, abnormal nerve impulses, and variations in brain chemistry and function. Children and adolescents who have had a severe head injury and who have epilepsy may be at greater risk of developing these disorders. In children and adolescents, impulse control disorders often occur along with other psychological conditions, such as attention-deficit hyperactivity disorder (ADHD).

Intermittent explosive disorder is characterized by episodes of aggressive and violent outbursts and loss and lack of control of anger. Often, explosive episodes result in destruction of property, domestic violence, and physical assault, which, in turn, have legal ramifications. The degree of aggressiveness during each episode is grossly out of proportion to any stresses.

Pyromania is the repetitive, deliberate, and purposeful setting of fires. Children and adolescents with pyromania are often aroused by fire-setting, and/or feel pleasure, relief, or gratification when setting fires or witnessing the consequences of fire. In addition, pyromaniacs are fascinated and attracted to fire and related accessories (e.g., matches, lighters), and are unnaturally curious about its use and consequences. Fire-setting is not performed for any other reasons, such as for financial gain, to express anger, to conceal a criminal act, or to express sociopolitical views.

Kleptomania is an inability to resist impulses to repetitively steal objects that are not necessary for personal use or monetary value. Children and adolescents with kleptomania experience a growing sense of tension just before stealing, followed by pleasure, relief, or gratification during or just after stealing. Career thieves, those who steal out of need or to support substance abuse, and those who steal because they have no regard for society's laws, are not considered to have kleptomania. Individuals with kleptomania do not want to steal and feel guilty about it.

Trichotillomania is characterized by recurrent pulling out of one's hair to produce noticeable hair loss. Children and adolescents with trichotillomania experience a growing sense of tension or stress just before pulling hair out or when trying to resist hair pulling. They experience pleasure, relief, or gratification when pulling out the hair.

Compulsive gambling disorder, also called pathological gambling, is recurrent and persistent gambling behavior characterized by five or more of the following:

  • having a preoccupation with gambling
  • needing to gamble with increasingly larger amounts of money to achieve the same excitement
  • having repeated unsuccessful efforts to control gambling
  • telling lies to family members, therapists, and others to conceal extent of gambling involvement
  • committing forgery, fraud, or theft to finance gambling
  • being restless or irritable when trying to stop gambling
  • gambling to escape problems or to relieve tension or other feelings
  • jeopardizing or losing a significant job, relationship, or other opportunity due to gambling
  • relying on others to provide financial support due to financial difficulties caused by gambling

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