眼动测谎指标的新探究

The New Exploration of Lie Detector In Eye Tracker

测谎技术是指在控制条件下的一种心理检测，本文基于在角色扮演的实验范式下，考查主动撒谎的被试的眼动特征，从而为寻找除瞳孔大小外的其他眼动测谎证据提供依据。结果发现，实验组在撒谎时的注视点平均注视时长显著大于不撒谎时的时长，对照纽不存在显著差异，并且观察时间长度、注视点次数、注视点平均注视时长、注视点记录长度可以作为眼动测谎的指标．

lie-detection technology is psychological detection technology. This paper dicusses in the role-playing experimental paradigm, we inspected lied subjects＇ characteristics of the active eye movement, so as to find the other evidence for lie detection on eye tracker except the pupil size of the eye. The results showed that when people told a lie, the average length of fixation of experimental group was significantly greater than the time when they do not, and the experimental group＇s observation length, fixation count and fixation length on key images were significantly different with those unrelated images. And there was no significant difference in matched group. Our experiments prove that observation length, fixation count, fixation length and average length of fixation can be used as indicators of tie detection in eye tracker.