One of the best-known methods, the polygraph test, is based on the theory that lying alters normal psychophysiological patterns that can be detected by sensitive machinery. Although popular in crime dramas and movies, the test has long been controversial, with no evidence that there are definitive fluctuations in physiology. Evidence suggests that those with certain psychiatric disorders, such as antisocial personality disorder, cannot be accurately measured by polygraph or other common lie-detection methods.