Eye movements and visual memory: Detecting changes to saccade targets in scenes
Eye movements and visual memory: Detecting changes to saccade targets in scenes
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DOI：
10.3758/bf03194783
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发表时间：
2003-01-01
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影响因子：
--
通讯作者：
Hollingworth, A
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文献类型：
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作者：
Henderson, JM;Hollingworth, A
扫视相关变化检测为研究场景表征和场景记忆提供了一个强有力的工具。在本研究中，关键的对象内的彩色图像的自然场景中的变化，在扫视朝向或远离目标。在扫视期间，关键对象被改变为另一对象类型、相同对象类型的视觉上不同的标记，或者从场景中删除。有三个主要结果。首先，眼跳目标的删除是特殊的：眼跳目标删除的检测性能非常好，并且这种性能水平不随眼跳的幅度而下降。相比之下，检测类型和标记的变化在扫视目标，和所有的变化，包括删除在一个位置，刚刚被固定，但不是扫视目标，下降幅度的扫视增加。第二，检测性能的类型和令牌的变化，无论是当变化的对象是扫视的目标，当对象刚刚被固定，但不是扫视目标，是远远高于机会。第三，平均注视持续时间可靠地提高了这些试验中的变化没有明显检测。结果表明，扫视目标的存在起着特殊的作用，在跨扫视整合，并与其他最近的研究结果一起，更普遍地表明，一个相对丰富的场景表示跨扫视保留和存储在视觉记忆中。
Saccade-contingent change detection provides a powerful tool for investigating scene representation and scene memory. In the present study, critical objects presented within color images of naturalistic scenes were changed during a saccade toward or away from the target. During the saccade, the critical object was changed to another object type, to a visually different token of the same object type, or was deleted from the scene. There were three main results. First, the deletion of a saccade target was special: Detection performance for saccade target deletions was very good, and this level of performance did not decline with the amplitude of the saccade. In contrast, detection of type and token changes at the saccade target, and of all changes including deletions at a location that had just been fixated but was not the saccade target, decreased as the amplitude of the saccade increased. Second, detection performance for type and token changes, both when the changing object was the target of the saccade and when the object had just been fixated but was not the saccade target, was well above chance. Third, mean gaze durations were reliably elevated for those trials in which the change was not overtly detected. The results suggest that the presence of the saccade target plays a special role in transsaccadic integration, and together with other recent findings, suggest more generally that a relatively rich scene representation is retained across saccades and stored in visual memory.