The Effect of Cognitive Load and Emotional Arousal on Liar’s Gaze Aversion Behavior

초록

The aim of this study is to investigate the effects of cognitive load and emotional arousal on liar’s gaze aversion. 112 participants were randomly assigned to four liar groups according to cognitive load and emotional arousal conditions (high cognition - high emotion: n = 29, high cognition - low emotion: n = 27, low cognition - high emotion: n = 29, low cognition - low emotion: n = 28). All participants were interviewed after lie tasks was performed, and gaze aversion was measured using a wearable eye-tracker. The high cognitive load condition had a significant higher gaze aversion than the low cognitive condition. There was no difference in gaze aversion among emotional arousal conditions. The interaction of cognitive load and emotional arousal was significant. In high cognitive load conditions, gaze aversion appeared with high frequency regardless of emotional arousal. In low cognitive load and high emotional arousal condition, gaze aversion appeared with low frequency. Therefore, this study suggests that it is necessary to consider the effects of cognitive load and emotional arousal levels on the liar‘s gaze aversion behavior.

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