法医学杂志

法医学杂志 ›› 2020, Vol. 36 ›› Issue (2): 233-238.DOI: 10.12116/j.issn.1004-5619.2020.02.016

• 论著 • 上一篇    下一篇

眼球运动参数在图片填充测验中识别合作程度的准确性分析

刘超1， 王俊杰2， 李豪喆1， 蔡伟雄1   

  1. 1. 司法鉴定科学研究院 上海市法医学重点实验室 司法部司法鉴定重点实验室 上海市司法鉴定专业技术服务平台，上海 200063； 2. 杭州市第七人民医院，浙江 杭州 310013
  • 发布日期:2020-04-25 出版日期:2020-04-28
  • 通讯作者: 蔡伟雄，男，研究员，主要从事司法精神病学研究与鉴定；E-mail：caiwx@ssfjd.cn
  • 作者简介:刘超（1984—），男，硕士，主检法医师，主要从事司法精神病学研究；E-mail：liuchao12031984@163.com
  • 基金资助:
    国家自然科学基金资助项目（81801881）；“十三五”国家重点研发计划资助项目（2016YFC0800701）；中央级科研院所基本科研业务费资助项目（GY2018G-7，GY2018G-8）；上海市法医学重点实验室资助项目（17DZ2273200）；上海市司法鉴定专业技术服务平台资助项目（19DZ2292700）

Accuracy Analysis of Distinguishing the Cooperation Degree during Image Completion Test by Eye Movement Parameters

LIU Chao1, WANG Jun-jie2, LI Hao-zhe1, CAI Wei-xiong1   

  1. 1. Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, China, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China; 2. Hangzhou Seventh People’s Hospital, Hangzhou 310013, China
  • Online:2020-04-25 Published:2020-04-28

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摘要： 目的 研究不同眼球运动参数在识别颅脑外伤所致精神障碍患者在图片填充测验过程中合作与不合作的准确性差异。 方法 收集进行精神伤残程度评定的颅脑外伤所致精神障碍患者140例，以韦氏智力测验中“图片填充”的21张图片作为刺激图片，根据二项必选数字记忆测验及鉴定专家意见分为合作组与不合作组，通过SMI眼动追踪系统获取研究对象在完成21张图片填充过程中的眼球运动参数，利用ROC曲线评估眼球运动参数在识别颅脑外伤患者在精神伤残程度评定中合作与不合作的准确程度。 结果 就整个图片填充测验过程而言，眨眼次数、注视次数、瞳孔直径、眼跳次数、眼跳潜伏期、眼跳平均加速度、眼跳平均纵向速度、眼跳峰值纵向速度的曲线下面积（area under curve，AUC）值大于0.5，其中眨眼次数的AUC值为0.645，优于其他眼球运动参数。具体到单个刺激图片，眨眼次数在特定刺激图片下的AUC值可大于0.8，瞳孔X轴直径的AUC值可大于0.7。 结论 眼球运动参数识别颅脑外伤所致精神障碍患者合作与不合作的准确程度与刺激图片有关，眨眼次数分辨合作与不合作的准确性要优于其他眼球运动参数。

关键词: 司法精神病学, 伤残鉴定, 眼球运动, 合作行为, 准确性

Abstract: Objective To analyze the differences in accuracy of different eye movement parameters in distinguishing the cooperation and non-cooperation during image completion test of patients with mental disorders caused by craniocerebral trauma. Methods One hundred and forty cases of patients with mental disorders caused by craniocerebral trauma who took psychiatric impairment assessments were collected. The 21 pictures from “image completion” of Wechsler intelligence test were used as stimulating pictures, then divided into cooperation group and non-cooperation group according to binomial forced-choice digit memory test and expert opinions. The eye movement parameters of research subjects during completion of images were obtained by the SMI eye-tracker. The accuracy of eye movement parameters in distinguishing the cooperation or non-cooperation of patients with mental disorders caused by craniocerebral trauma in psychiatric impairment assessments were evaluated by the ROC curve. Results During the process of the image completion test, the area under curve （AUC） value of frequency of blink, frequency of fixation, pupil size, frequency of saccade, latency of saccade, average acceleration of saccade, the average and peak longitudinal velocity of saccade was above 0.5. When it comed to a specific stimulating picture, the AUC value of frequency of blink in looking at a specific stimulating picture could be above 0.8, and the AUC value of X axis diameter of pupil size could be above 0.7. Conclusion The accuracy of eye movement parameters in distinguishing the cooperation or disguise of patients with mental disorders caused by craniocerebral trauma is related with the stimulating picture. The accuracy of frequency of blink in distinguishing cooperation and non-cooperation is better than that of other eye movement parameters.

Key words: forensic psychiatry, disability evaluation, eye movements, cooperative behavior, accuracy