A limit to the speed of processing in ultra-rapid visual categorization of novel natural scenes
A limit to the speed of processing in ultra-rapid visual categorization of novel natural scenes
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DOI：
10.1162/089892901564234
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发表时间：
2001-03-01
影响因子：
3.2
通讯作者：
Thorpe, S
中科院分区：
文献类型：
--
作者：
Fabre-Thorpe, M;Delorme, A;Thorpe, S
决定一个短暂闪现的自然场景是否包含动物所需的处理可以在150毫秒内完成(Thorpe，Fize，&Marlot，1996)。在这里，我们报告说，在3周的时间里，对照片子集的广泛训练未能提高这种快速视觉分类的潜在处理速度：完全新的场景可以像非常熟悉的场景一样快地被分类。这样的数据表明，视觉系统处理新刺激的速度和阶段数是无法压缩的。这种快速处理模式在广泛的视觉复杂图像中都可以看到，挑战了只有简单的视觉刺激才能看到短反应时间的想法，并意味着高度自动的前馈机制在日常视觉所需的复杂图像分析中所占的比例比通常认为的要大得多。
The processing required to decide whether a briefly flashed natural scene contains an animal can be achieved in 150 msec (Thorpe, Fize, & Marlot, 1996). Here we report that extensive training with a subset of photographs over a 3-week period failed to increase the speed of the processing underlying such Rapid Visual Categorizations: Completely novel scenes could be categorized just as fast as highly familiar ones. Such data imply that the visual system processes new stimuli at a speed and with a number of stages that cannot be compressed. This rapid processing mode was seen with a wide range of visual complex images, challenging the idea that short reaction times can only be seen with simple visual stimuli and implying that highly automatic feed-forward mechanisms underlie a far greater proportion of the sophisticated image analysis needed for everyday vision than is generally assumed.