Compulsive lying disorder, also known as pseudologia fantastica or mythomania, is a condition that describes the behavior of a habitual liar.
While compulsive lying disorder is actually not included in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), except as a symptom of factitious disorder, many psychiatrists and psychologists consider it a distinct mental disorder.
In the past two decades countless hours of research and multiple papers have been written regarding this issue, though it remains one of the most under researched psychiatric conditions. Individuals with the disorder simply cannot stop themselves from misrepresenting the truth.
People with the disorder are not able to control their lies and experience no guilt regardless of how the lies may affect themselves and others. The lack of guilt is frequently the result of the fact that the individual becomes so caught up in the lie that they are telling, they begin to believe it themselves. If confronted with a lie they have told in the past or one that they are presently telling, they will be insistent that they are speaking the truth.
Over time, the individual will become so adept at lying that it will be very difficult for others to determine if they are, in fact, telling the truth. There are no exact figures regarding the number of people that suffer from this disorder, but has been found to be equally common in men and women and usually becomes very apparent in the late teens.
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