Serial dependence in the perceptual judgments of radiologists.
Serial dependence in the perceptual judgments of radiologists.
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DOI：
10.1186/s41235-021-00331-z
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发表时间：
2021-10-14
期刊：
影响因子：
--
通讯作者：
Whitney D
中科院分区：
文献类型：
--
作者：
Manassi M;Ghirardo C;Canas-Bajo T;Ren Z;Prinzmetal W;Whitney D
在放射学筛查中，临床医生扫描无数的X线片，目的是识别和区分病变。即使他们是训练有素的专家，放射科医生的人工搜索引擎也不是完美的：平均每天的错误率估计在3-5%左右。放射学筛查中的一个主要基本假设是，在当前X线片上进行视觉搜索独立于先前看到的X线片。然而，最近的研究表明，人类的知觉受到以前看到的刺激的影响；我们视觉系统对当前刺激和先前刺激的错误感知的偏差被称为序列依赖。在这里，我们测试了序列依赖是否影响放射科医生对嵌入实际X线片中的模拟病变的识别。我们发现，连续依赖影响放射科医生对模拟病变的识别；平均试验中的知觉被拉向1-back刺激13%。模拟的病变被认为与之前1或2张X光片中看到的病变有偏差。在测试一组未经训练的观察者的病变识别时，也发现了类似的结果。综上所述，这些结果表明放射科医生的知觉判断受到先前视觉经验的影响，因此放射科医生表现出的一些诊断错误可能是由于对先前看到的X线片的连续依赖造成的。
In radiological screening, clinicians scan myriads of radiographs with the intent of recognizing and differentiating lesions. Even though they are trained experts, radiologists’ human search engines are not perfect: average daily error rates are estimated around 3–5%. A main underlying assumption in radiological screening is that visual search on a current radiograph occurs independently of previously seen radiographs. However, recent studies have shown that human perception is biased by previously seen stimuli; the bias in our visual system to misperceive current stimuli towards previous stimuli is called serial dependence. Here, we tested whether serial dependence impacts radiologists’ recognition of simulated lesions embedded in actual radiographs. We found that serial dependence affected radiologists’ recognition of simulated lesions; perception on an average trial was pulled 13% toward the 1-back stimulus. Simulated lesions were perceived as biased towards the those seen in the previous 1 or 2 radiographs. Similar results were found when testing lesion recognition in a group of untrained observers. Taken together, these results suggest that perceptual judgements of radiologists are affected by previous visual experience, and thus some of the diagnostic errors exhibited by radiologists may be caused by serial dependence from previously seen radiographs.
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