Specificity of learning curvature, orientation, and vernier discriminations
Specificity of learning curvature, orientation, and vernier discriminations
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DOI：
10.1016/s0042-6989(96)00308-2
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发表时间：
1997-07-01
期刊：
影响因子：
1.8
通讯作者：
Fahle, M
中科院分区：
文献类型：
--
作者：
Fahle, M
训练显著提高了许多感知任务的表现。不同的视觉任务共享一些“前端”神经元机制，但（部分）依赖于不同的神经元机制进行进一步分析。感知学习可能发生在视觉信息处理的早期常见水平，也可能发生在后来更专业的水平。18名观察员在三个视觉超敏度任务，即曲率，方向，和游标歧视，可能共享一个共同的第一阶段的分析基础上检测定向线元素。这些任务之间的改善速度没有显着差异。没有转移的改善，从一个任务到另一个，这表明，神经元的机制，这三个任务至少部分是不相同的，学习不会发生在第一个共同的分析水平。这一结果限制了感知团队在人脑中的可能定位。这项研究还表明，知觉学习可以作为一种工具，以增加我们的知识的操作顺序在（视觉）模式识别，（C）1997年爱思唯尔科学有限公司。
Training significantly improves the performance,of many perceptual tasks. Different visual tasks Share some ''front-end'' neuronal mechanisms but rely (partly) on different neuronal mechanisms for further analysis. Perceptual learning might occur on the early common levels of visual information processing or else on the later, more specialized levels. Eighteen observers trained in three visual hyperacuity tasks, namely curvature, orientation, and vernier discrimination that probably share a common first stage of analysis based on detection of oriented line elements. Speed of improvement did not differ significantly between these tasks. There was no transfer of improvement from one task to another, indicating that the neuronal mechanisms underlying the three tasks are at least partly non-identical and that learning does not take place on the first common levels of analysis. This result constrains the possible localizations, in the human brain, of perceptual teaming. The study also demonstrates that perceptual learning can be used as a tool to increase our knowledge on the sequence of operations during (visual) pattern recognition, (C) 1997 Elsevier Science Ltd.