IRT框架下强迫症高危人群“症状-特质-眼动”融合筛查模式探析  

Exploration of an integrated screening model of symptom-trait-eye movement for high-risk population of obsessive-compulsive disorder under the framework of item response theory

作　　者：保宏翔 黄荷 隋佳汝 苗丹民 BAO Hongxiang;HUANG He;SUI Jiaru;MIAO Danmin(Frontier Medical Training Brigade,Army Medical University,Hutubi 831200,China;Department of Aerospace Psychology,School of Military Medical Psychology,Air Force Medical University,Xi'an 710032,China)

机构地区：[1]陆军军医大学边防卫勤训练大队,新疆呼图壁831200 [2]空军军医大学军事医学心理学系航空航天心理学教研室,陕西西安710032

出　　处：《空军军医大学学报》2023年第10期955-960,967,共7页Journal of Air Force Medical University

基　　金：中国博士后科学基金面上项目(2019M653963);陆军军医大学教改课题(2022B21)。

摘　　要：目的探析强迫症高危人群“症状-特质-眼动”融合筛查策略。方法采用眼动追踪实验探析了强迫症高危人群作答症状特质测验时眼动特征及眼动反应规律;初步提出了强迫症高危人群“症状-特质-眼动”融合筛查模式。统计分析方法包括独立样本t检验、热图及领域模型构建。结果眼动实验发现:①强迫症高危人群(高危组)与对照人群(对照组)在首次整体注视时间(P<0.05)、眼跳幅度(P<0.05)及题干区总访问时长(P<0.01)等诸方面均存在差异:高危组在选项区整体注视时间更长(P<0.05),对照组则在题干区首次注视时长更长(P<0.05);高危组眼跳幅度整体上大于对照组(P<0.05);②测题方面,状态测题比特质题更易诱发被试眼动反应;特质题内部,理想点过程题又比优势过程题更易诱发被试眼动反应;此外,长题似乎比短题更易引发被试眼跳差异。模型验证结果则显示,融合症状-特质-眼动的多维识别模型识别率高,总有效性达到92.5%。结论融合症状-特质-眼动的多维筛查范式有效可行,能切实辅助心理工作者对强迫症高危人群做出更精准的筛查。Objective To explore the symptom-trait-eye movement integration screening strategy in high-risk population of obsessive-compulsive disorder(OCD).Methods The eye tracking experiment was used to analyze the eye movement characteristics and the rule of eye movement response of high-risk population of OCD when answering the symptom-trait test.An integrated screening model of“symptom-trait-eye movement”was preliminarily proposed for high-risk population of OCD.The statistical methods included independent sample t test,heat map and domain model construction.Results The eye tracking experiment found that:①There were statistical differences between the OCD high-risk population(high-risk group)and the control population(control group)in indicators of the first overall fixation time(P<0.05),saccade amplitude(P<0.05)and the total duration of visit in the item-stem zone(P<0.01).The high-risk group had a longer overall fixation time in the item-option zone(P<0.05),while the control group had a longer first fixation time in the item-stem zone(P<0.05).The saccade amplitude of the high-risk group was larger than that of the control group(P<0.05).②In terms of test items,symptomatic items were more likely to induce eye movement responses than trait items.Within the framework of trait items,ideal point items were more likely to induce eye movement responses than dominance process items.In addition,compared with short items,long items seemed to induce more saccadic differences.The model verification results showed that the multi-dimensional recognition model integrating symptom-trait-eye movement had a high recognition rate,and the total effectiveness reached 92.5%.Conclusion The multi-dimensional screening paradigm integrating symptom,trait and eye movement is effective and feasible,and can effectively assist psychological workers to make more accurate screening for high-risk population of OCD.

关 键 词：心理障碍 特质 高危 筛查 眼动追踪 强迫症 

分 类 号：R821[医药卫生—临床医学]