目的 探讨紧张情绪下头部微运动不对称性的变化特征,验证振动影像技术用于非接触式情绪评估的可靠性。方法 招募120名职业青年(男女各60名),采用被试内设计。通过集成振动影像的多模态评估系统记录头部微运动,提取振幅、频率及高频振动不对称性3项指标;同步采集状态焦虑分量表(STAI-S)评分、心率及皮肤电数据。采用配对t检验、相关分析及回归分析处理数据。结果 紧张状态下3项不对称性指标均较中性状态增强(P<0.001),效应量达大效应水平(Cohen's d=1.77~2.58)。综合不对称性指标与主观焦虑变化量(r=0.78)、心率变化量(r=0.68)、皮肤电变化量(r=0.72)均呈高度正相关。女性反应显著强于男性(β=0.29,P=0.002)。结论 紧张情绪可引发头部微运动不对称性特征性增强,该指标可被振动影像技术有效量化,适用于应急场景下的客观、非接触式情绪评估。
Abstract
Objective To investigate the changes in head micro-movement asymmetry under stress conditions and to verify the reliability of vibraimage technology for non-contact emotional assessment. Methods A total of 120 employed youth (60 males and 60 females) were recruited and a within-subject design was adopted. Head micro-movements were recorded through a multi-modal assessment system integrated with vibraimage technology, and three indicators of asymmetry (amplitude, frequency, and high-frequency vibration) were extracted. State-trait anxiety inventory-state subscale (STAI-S) scores, heart rate, and skin conductance data were simultaneously collected. Paired t-test, correlation analysis, and regression analysis were used for data processing. Results Under stress conditions, all the three asymmetry indicators were enhanced compared with the neutral state (P<0.001), with an effect size reaching a large effect level (Cohen's d=1.77~2.58). The comprehensive asymmetry indicators were highly positively correlated with the changes in subjective anxiety (r=0.78), heart rate (r=0.68), and skin conductance (r=0.72). Female responses were significantly stronger than those of males (β=0.29, P=0.002). Conclusions Nervous mood can induce characteristic enhancement of head micro-movement asymmetry, which can be effectively quantified by vibraimage technology and is suitable for objective, non-contact emotional assessment in military scenarios.
关键词
紧张情绪 /
头部微运动 /
不对称性 /
振动影像技术 /
多模态评估
Key words
nervous mood /
head micro-movement /
asymmetry /
vibraimage technology /
multi-modal assessment
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