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首页> 外文期刊>The journal of sexual medicine >Diagnostic Accuracy of Eye Movements in Assessing Pedophilia
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Diagnostic Accuracy of Eye Movements in Assessing Pedophilia

机译：恋童癖评估中眼动的诊断准确性

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Introduction. Given that recurrent sexual interest in prepubescent children is one of the strongest single predictors for pedosexual offense recidivism, valid and reliable diagnosis of pedophilia is of particular importance. Nevertheless, current assessment methods still fail to fulfill psychometric quality criteria. Aims. The aim of the study was to evaluate the diagnostic accuracy of eye-movement parameters in regard to pedophilic sexual preferences. Method. Eye movements were measured while 22 pedophiles (according to ICD-10 F65.4 diagnosis), 8 non-pedophilic forensic controls, and 52 healthy controls simultaneously viewed the picture of a child and the picture of an adult. Fixation latency was assessed as a parameter for automatic attentional processes and relative fixation time to account for controlled attentional processes. Main Outcome Measures. Receiver operating characteristic (ROC) analyses, which are based on calculated age-preference indices, were carried out to determine the classifier performance. Cross-validation using the leave-one-out method was used to test the validity of classifiers. Results. Pedophiles showed significantly shorter fixation latencies and significantly longer relative fixation times for child stimuli than either of the control groups. Classifier performance analysis revealed an area under the curve (AUC)=0.902 for fixation latency and an AUC=0.828 for relative fixation time. The eye-tracking method based on fixation latency discriminated between pedophiles and non-pedophiles with a sensitivity of 86.4% and a specificity of 90.0%. Cross-validation demonstrated good validity of eye-movement parameters. Conclusions. Despite some methodological limitations, measuring eye movements seems to be a promising approach to assess deviant pedophilic interests. Eye movements, which represent automatic attentional processes, demonstrated high diagnostic accuracy.
机译：介绍。鉴于青春期前儿童中反复出现的性兴趣是恋童癖累犯的最有力的单一预测因素之一，因此有效且可靠的恋童癖诊断非常重要。然而，当前的评估方法仍然不能满足心理测量质量标准。目的该研究的目的是评估关于恋童癖性偏好的眼动参数的诊断准确性。方法。在22个恋童癖者（根据ICD-10 F65.4诊断），8个非恋童癖法医对照和52个健康对照同时观察儿童图片和成人图片的同时，测量了眼睛的运动。固定潜伏期被评估为自动注意力过程和相对固定时间的参数，以说明受控注意力过程。主要观察指标。进行基于计算的年龄偏好指数的接收器工作特性（ROC）分析，以确定分类器性能。使用留一法的交叉验证用于测试分类器的有效性。结果。与任何一个对照组相比，恋童癖者对儿童刺激的固定潜伏期明显缩短，相对固定时间明显较长。分类器性能分析显示，曲线下的面积（AUC）= 0.902，用于固定等待时间，而AUC = 0.828，用于相对固定时间。基于固定潜伏期的眼动追踪方法可区分恋童癖者和非恋童癖者，其敏感度为86.4％，特异性为90.0％。交叉验证表明眼动参数具有良好的有效性。结论。尽管有一些方法上的限制，但测量眼球运动似乎是评估异常恋童癖兴趣的一种有前途的方法。代表自动注意过程的眼球运动具有很高的诊断准确性。

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