39 Thus, polygraph tests suffer from a high rate of "false positives" - innocent people whom the test deems guilty.40.

因此，测谎机的假阳性率极高，无辜的人也会被确认为有罪。

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Conventional 'polygraph' lie detector tests involve wiring up subjects to equipment that measures blood pressure, pulse, heart rate, respiration and electrical skin activity.

传统的‘测谎仪’测谎包括通过设备上得诸多连线监测血压、脉搏、心率、呼吸和皮肤电活动。

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Polygraphy tests do not detect lies, says Frank Horvath, past President of the American Polygraph Association. They detect physiological arousal to psychological stimuli.

“多波扫描器并不能测探到谎言，”美国多波图谱协会前会长弗兰克·霍法思说，“它只能探测到对于心理刺激所产生的生理应激。”

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Tomscheck says his agency would need an additional of giving all applicants polygraph tests.

VOA: standard.2010.03.11

Sullivan said he decided to start the polygraph tests after taking one himself when he was hired.

CNN: Police in Tennessee town must take polygraphs

Current workers at Fort Detrick are being given polygraph tests by the FBI to see if any leads may materialize.

CNN: FBI searches apartment in anthrax probe

Currently, many scientists who are knowledgeable about anthrax are taking polygraph tests and undergoing interviews as investigators try to uncover suspects.

CNN: Source: Mailed anthrax was not old