To freeze or not to freeze: A culture-sensitive motion capture approach to detecting deceit

摘要: We present a new signal for detecting deception: full body motion. Previous work on deception from movement has relied either human judges or specific gestures (such as fidgeting gaze aversion) that are coded by humans. While this research helped to build the foundation of field, results often characterized inconsistent and contradictory findings, with small-stakes lies under lab conditions detected at rates little better than guessing. examine whether motion capture suit, which records position, velocity, orientation 23 points in subject’s body, could yield deception. Interviewees South Asian (n = 60) White British culture 30) were required tell truth lie about two experienced tasks while being interviewed somebody their own different 30). discovered motion–the sum joint displacements–was indicative lying 74.4% time. Further analyses indicated including individual limb data our measurements can increase its discriminatory power 82.2%. Furthermore, was guilt- penitential-related, occurred independently anxiety, cognitive load, cultural background. It appears be an objective nonverbal indicator deceit, showing does not cause people freeze.