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基于眼动追踪技术的青少年测谎实证研究

An Empirical Study on Adolescent Lie Detection Based on Eye-Tracking Technology

焦语卿, 高雨菲, 冷奕帆, 范镇源, 荣欣然

Psychology of China / 2026,8(5): 678-685 / 2026-05-15 17 22

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• Information:

  江苏警官学院，南京

• Keywords:
  Eye-tracking; Adolescents; Deception detection; Motivational intensity; Gender differences
  眼动追踪; 青少年; 测谎; 动机强度; 性别差异
• Abstract: Eye-tracking technology interprets visual attention and cognitive processing by recording eye movements. This technology has undergone three stages: the budding stage, the developing stage, and the mature stage, with methods continuously improving. In recent years, eye-tracking has been applied to the field of deception detection, emerging as a new technology following traditional polygraph tests. Compared with traditional methods, eye-tracking lie detection offers advantages such as simple operation, intuitive data, and non-invasiveness. Indicators including pupil diameter, fixation duration, blink frequency, and eye movement trajectory have been proven to possess strong lie detection efficacy. Given the current trend of younger age in criminal offenses, it is of great significance to study the eye movement characteristics of adolescents during deception for interrogating juvenile offenders. However, existing research has several limitations: first, a lack of eye-tracking lie detection studies specifically targeting adolescent populations; second, failure to systematically examine the influence of gender on detection outcomes; third, only comparing honest and lying groups without exploring the eye movement changes induced by different levels of motivational intensity under lying conditions. To address these limitations, this study recruited 60 adolescents (30 males, 30 females) as participants. A simulated number-writing task paradigm was adopted, with two conditions: “no motivational enhancement” and “motivational enhancement.” An Eyelink eye tracker was used to collect indicators including pupil diameter, fixation duration, blink frequency, and eye movement trajectory, aiming to reveal the eye movement characteristics of adolescents during deception and the moderating effects of gender and motivational intensity. The main findings are as follows: (1) Under the no-motivation lying condition, gender is not a key factor affecting adolescents’ eye movement patterns during deception; (2) Increased motivational intensity significantly changes the core eye movement indicators of adolescents during deception, and eye movement characteristics effectively reflect changes in cognitive load during lying; (3) The interaction between motivational intensity and gender has no significant effect on adolescents’ eye movement indicators during deception, and gender does not moderate the effect of motivational intensity on eye movement performance; (4) The experimental baseline demonstrates good homogeneity and comparability, ensuring the reliability and validity of the motivational effect analysis. 眼动追踪技术通过记录眼球运动解读视觉注意与认知加工过程。该技术经历了萌芽期、发展期和成熟期，近年来被应用于测谎领域，具有操作简单、数据直观、无侵入性等优势。瞳孔直径、注视时长、眨眼频率、眼动轨迹等指标已被证实具有较强的测谎效能。近年来，青少年涉及法律案件的比例引发关注。研究青少年说谎时的眼动特征，有助于理解其在司法问询中的行为表现。然而，现有研究存在着一些局限：一是缺乏专门针对青少年群体的眼动测谎研究；二是未系统考察性别因素对测谎结果的影响；三是未探究不同动机强度带来的眼动变化。针对上述局限，本研究以60名青少年（男女各半）为被试，采用模拟书写数字任务范式，设置“未增加动机强度”与“增加动机强度”两种条件，使用Eyelink眼动仪采集瞳孔直径、注视时长、眨眼频率及眼动轨迹等指标，旨在揭示青少年说谎时的眼动特征及性别、动机强度的调节作用。通过实验，本研究得到以下结论：（1）无动机说谎条件下，性别并非影响青少年说谎眼动模式的关键因素；（2）撒谎动机强度的提升会显著改变青少年说谎时的核心眼动指标，眼动特征可有效反映说谎过程中的认知负荷变化；（3）撒谎动机与性别的交互作用对青少年说谎眼动指标无显著影响，性别未调节动机强度对眼动表现的作用效果；（4）实验基线具有良好的同质性与可比性，保障了动机效应分析结果的可靠性与有效性。
• DOI: 10.35534/pc.0805101 (registering DOI)
• Cite: 焦语卿, 高雨菲, 冷奕帆, 范镇源, 荣欣然. (2026). 基于眼动追踪技术的青少年测谎实证研究. 中国心理学前沿, 8 (5), 678-685.