Uchida Naoshige, Kepecs Adam, Mainen Zachary F
Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, New York 11724, USA.
Nat Rev Neurosci. 2006 Jun;7(6):485-91. doi: 10.1038/nrn1933.
Intuitively, decisions should always improve with more time for the accumulation of evidence, yet psychophysical data show a limit of 200-300 ms for many perceptual tasks. Here, we consider mechanisms that favour such rapid information processing in vision and olfaction. We suggest that the brain limits some types of perceptual processing to short, discrete chunks (for example, eye fixations and sniffs) in order to facilitate the construction of global sensory images.
直观地说，随着有更多时间积累证据，决策应该总是会得到改善，然而心理物理学数据表明，许多感知任务的时间限制为200 - 300毫秒。在这里，我们考虑有利于视觉和嗅觉中这种快速信息处理的机制。我们认为，大脑将某些类型的感知处理限制在短暂、离散的片段（例如，眼睛注视和嗅觉）中，以便于构建全局感官图像。
