Object-intrinsic oddities draw early saccades
Object-intrinsic oddities draw early saccades
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DOI：
10.1037/0096-1523.33.1.20
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发表时间：
2007-02-01
影响因子：
2.1
通讯作者：
Lubin, Jeffrey
中科院分区：
文献类型：
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作者：
Becker, Mark W.;Pashler, Harold;Lubin, Jeffrey
作者研究了当异常的低级视觉属性不明显时，场景外围的异常信息是否会引起眼跳。受试者观看彩色照片 8 秒，同时监测他们的眼球运动。每个受试者看到两张不同场景的照片。一张照片是一个控制场景，其中熟悉的物体以其规范的形式出现。在另一张图片中，对象的改变方式使它们变得异常，但没有在低级视觉显着性中引入任何明显的变化。在实验 1 中，这些改变涉及以不自然的方式旋转物体（例如，肖像上的倒置头部、前端停放的卡车）。在实验 2 中，颜色以合理或异常的方式分布在物体上（例如，绿色杯子与绿色手）。受试者比非扭曲物体更早地注视异常物品（无论是在时间上还是按注视顺序），这表明违反规范形式的行为是在外围被检测到的，并且可能会影响注视物品的可能性。
The authors investigated whether anomalous information in the periphery of a scene attracts saccades when the anomaly is not distinctive in its low-level visual properties. Subjects viewed color photographs for 8 s while their eye movements were monitored. Each subject saw 2 photographs of different scenes. One photograph was a control scene in which familiar objects appeared in their canonical form. In the other picture, objects were altered in a way that rendered them deviant without introducing any obvious changes in low-level visual saliency. In Experiment 1, these alterations involved rotating an object in an unnatural fashion (e.g., an inverted head on a portrait, a truck parked on its front end). In Experiment 2, colors were distributed over objects in a way that was either reasonable or anomalous (e.g., a green cup vs. a green hand). Subjects fixated the anomalous items earlier (both in time and in order of fixations) than the nondistorted objects, suggesting that violations of canonical form are detected peripherally and can affect the likelihood of fixating an item.