THE VISUAL FILTER MEDIATING LETTER IDENTIFICATION
THE VISUAL FILTER MEDIATING LETTER IDENTIFICATION
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DOI：
10.1038/369395a0
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发表时间：
1994-06-02
期刊：
影响因子：
64.8
通讯作者：
PELLI, DG
中科院分区：
文献类型：
--
作者：
SOLOMON, JA;PELLI, DG
我们通过平行的听觉滤波器听到周期性的声音或音调，每个滤波器调谐到一个时间频率带（1），我们通过平行的视觉滤波器看到周期性的图案或光栅，每个滤波器调谐到一个空间频率带（2）。除了帮助我们看到光栅，这些视觉过滤器是否参与日常任务，如阅读和物体识别？毕竟，光栅可见性只需要区分图案和空白，而物体识别，例如字母识别，需要观察者将其分类为许多学习的类别之一。在这里，我们利用听力研究的结果（3），将噪声掩蔽范式应用于视觉，揭示了介导任何阈值任务的过滤器。我们发现，字母identificatian和光栅检测过滤器是相同的，表明这些对象在一个大小的识别是调解和约束由一个单一的视觉过滤器，或“通道”。
WE hear periodic sounds, or tones, by means of parallel auditory filters, each tuned to a band of temporal frequency(1), and we see periodic patterns, or gratings, by means of parallel visual filters, each tuned to a band of spatial frequency(2). Beyond helping us to see gratings, do these visual filters participate in everyday tasks such as reading and object recognition? After all, grating visibility only requires the distinguishing of pattern from blank, whereas object recognition, for example letter identification, requires classification by the observer into one of many learned categories. Here we make use of results from hearing research(3), applying to vision a noise-masking paradigm that reveals the filter(s) mediating any threshold task. We find that letter-identificatian and grating-detection filters are identical, showing that the recognition of these objects at one size is mediated and constrained by a single visual filter, or 'channel'.