Past trials influence perception of ambiguous motion quartets through pattern completion
Past trials influence perception of ambiguous motion quartets through pattern completion
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DOI：
10.1073/pnas.0407157102
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发表时间：
2005-02-22
影响因子：
11.1
通讯作者：
Spillmann, L
中科院分区：
文献类型：
--
作者：
Maloney, LT;Dal Martello, MF;Spillmann, L
有许多著名的例子模糊的知觉配置，如内克尔立方体，突然和反复“切换”之间可能的知觉状态。当这种模糊的配置被间歇性地呈现时，观察者倾向于在连续的试验中看到相同的感知状态。每一次审判的结果显然都是为了“引发”随后的结果。我们试图通过使用模糊的运动四重奏作为刺激来确定过去试验的影响持续多久。我们发现，所有四个最近的试验大，显着的影响，但结果不符合任何启动模型。结果可以解释为两种时间模式的知觉完成，重复和交替。我们的结论是，视觉系统并不被动地记住知觉状态：它分析最近的知觉历史，并试图预测接下来会发生什么。这些预测可以改变所看到的。
There are many celebrated examples of ambiguous perceptual configurations such as the Necker cube that abruptly and repeatedly "switch" among possible perceptual states. When such ambiguous configurations are presented intermittently, observers tend to see the same perceptual state on successive trials. The outcome of each trial apparently serves to "prime" the outcome of the following. We sought to determine how long the influence of a past trial persists by using ambiguous motion quartets as stimuli. We found large, significant effects of all four most recent trials, but the results were not consistent with any priming model. The results could be explained instead as perceptual completion of two kinds of temporal patterns, repeating and alternating. We conclude that the visual system does not passively remember perceptual state: it analyzes recent perceptual history and attempts to predict what will come next. These predictions can alter what is seen.