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Psychological Issues
Q. I was told that my psychological issues will affect my polygraph examination. Is this true?
A. Individuals being treated for psychological problems and are living in the community are normally testable. Exceptions might include those suffering from unique types of phobias, individuals with very low intelligence, those who suffer from delusions, among a few other conditions. Those with dementia, schizophrenia, or significant memory deficits, or in profound depressive states are not considered suitable polygraph candidates. There are no drugs used to treat mental health problems that are known to cause polygraph decision errors, however if a medication adversely affects attention, memory, arousability, or concentration, the examination may result in an inconclusive finding. Some agencies or polygraph examiners will not conduct polygraph testing if the person reports that he or she has attempted or seriously contemplated suicide in the past.
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