Perceptual learning of the detection of features in X-ray images: A functional role for improvements in adults' visual sensitivity?
Perceptual learning of the detection of features in X-ray images: A functional role for improvements in adults' visual sensitivity?
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DOI：
10.1037/0096-1523.26.1.379
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发表时间：
2000-02-01
影响因子：
2.1
通讯作者：
Roling, P
中科院分区：
文献类型：
--
作者：
Sowden, PT;Davies, IRL;Roling, P
最近的知觉学习研究发现，成年人知觉系统的敏感性会长期增加。作者研究了这些变化是否可以部分解释医学 X 射线图像感知等任务的改善。实验 1 发现专家对 X 射线中低对比度点的敏感度优于新手。实验2通过实践发现了新手检测X射线低对比度点时亮度对比度特定改进的方向。实验 3 发现，通过练习，新手对真实医学 X 射线中低对比度特征的检测能力有了部分具体的提高。结果表明，经验可以增强对视觉分析关键维度的敏感性，以检测 X 射线图像中的异常情况。重要的是，它们展示了成年后感觉系统的长期灵活性的现实世界适应性功能作用。
Recent perceptual learning research has found long-term increases in the sensitivity of adults' perceptual systems. The authors examined whether such changes could partly explain improvement on tasks such as perception of medical X-ray images. Experiment 1 found experts' sensitivity to low-contrast dots in X-rays was better than novices'. Experiment 2 found a direction of luminance contrast-specific improvement in novices' detection of low-contrast dots in X-rays as a result of practice. Experiment 3 found a partly specific improvement in novices' detection of low-contrast features in real medical X-rays as a result of practice. Results suggest that experience enhances sensitivity to the critical dimensions of visual analysis for detecting abnormalities in X-ray images. importantly, they demonstrate a real-world adaptive functional role for the long-term flexibility of sensory systems in adulthood.