Researchers at the University of Utah are using eye-tracking technology as an alternative to the polygraph for lie detection.

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Researchers at the University of Utah are using eye-tracking technology as an alternative to the polygraph for lie detection, The Gaea Times reported.

Using eye movement to detect lies contrasts with polygraph testing. Instead of measuring a person's emotional reaction to lying, eye-tracking technology measures cognitive reaction. The researchers determined that lying requires more work than telling the truth, so they watch for indications that the subject is working hard. For example, a person who is being dishonest may have dilated pupils and take longer to read and answer the questions. The researchers record a number of measurements while a subject is answering a series of true-and-false questions on a computer. The measurements include pupil dilation, response time, reading and rereading time, and errors.

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新型眼球測謊儀問世

?????? 《蓋亞時報(bào)》報(bào)道，美國猶他大學(xué)的實(shí)驗(yàn)人員正在運(yùn)用眼球追蹤的方法對人進(jìn)行測謊。

?????? 通過觀察眼球運(yùn)動來測謊與傳統(tǒng)的測謊儀原理不同。傳統(tǒng)的測謊儀是測量人說謊時的情緒反應(yīng)，而眼球追蹤技術(shù)是測量人的認(rèn)知反應(yīng)。研究人員認(rèn)為人在撒謊時要比說真話“多花一點(diǎn)心思”，所以他們尋找受測人動心思的跡象。比如說，一個正在說謊的人可能瞳孔放大并且看問題和回答問題的時間更長。研究人員讓受測人在計(jì)算機(jī)上回答一系列是非題并記錄下一些測量項(xiàng)目，包括瞳孔放大、回答時間、閱讀和反復(fù)閱讀時間以及錯誤等等。