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Definition:Deception is to intentionally distort the truth in order to mislead others. There are two classes of deception: concealing the truth (dissimulates or gloss over) and exhibiting false information (simulate). Malingering is intentional production of false or exaggerated symptoms motivated by external incentives, such as obtaining compensation or drugs, avoiding work or military duty, or evading criminal prosecution. Signs of Malingering:Malingering can be strongly suspected in the presence of any combination of the following occurrences:-Marked discrepancy between the claimed distress and the objective findings-Lack of cooperation during evaluation and in complying with prescribed treatment-Presence of an antisocial personality disorderMalingering often is associated with an antisocial personality disorder and a histrionic personality style. Prolonged direct observation can reveal evidence of malingering because it is difficult for the person who is malingering to maintain consistency with the false or exaggerated claims for extended periods.The person who is malingering usually lacks knowledge of the nuances of the feigned disorder. For example, someone complaining of carpal tunnel syndrome may be referred to occupational therapy, where the person who is malingering would be unable to predict the effect of true carpal tunnel syndrome on tasks in the wood shop.Prolonged interview and examination of a person suspected of a malingering disorder may induce fatigue and diminish the ability of the person who is malingering to maintain the deception. Rapid firing of questions increases the likelihood of contradictory or inconsistent responses. Asking leading questions may induce the person to endorse symptoms of a different illness. Questions about improbable symptoms may yield positive responses. However, because some of these techniques may induce similar responses in some patients with genuine psychiatric disorders, caution should be exercised in reaching a conclusion of malingering.Persons malingering psychotic disorders often exaggerate hallucinations and delusions but cannot mimic formal thought disorders. They usually cannot feign blunted affect, concrete thinking, or impaired interpersonal relatedness. They frequently assume that dense amnesia and disorientation are features of psychosis. It should be noted that these descriptions also may apply to some patients with genuine psychiatric disorders. For example, individuals with a delusional disorder can have unshakable beliefs and bizarre ideas without formal thought disorder.Physical Examination:Typically, deficits on physical examination do not follow known anatomical distributions. A patient's attitude toward the examining physician often is vague or evasive.Concerns:The time, energy, and financial commitment created by malingering individuals is an appreciable problem in health care. Whether the goal is to obtain narcotics, to obtain time off from work and/or to secure financial benefits such as disability payment, the costs to the health care delivery system have proved enormous. For more information visit www.MedicalSystemsUSA.com