Eye movements and the integration of visual memory and visual perception
Eye movements and the integration of visual memory and visual perception
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DOI：
10.3758/bf03193327
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发表时间：
2005-04-01
期刊：
影响因子：
--
通讯作者：
Irwin, DE
中科院分区：
文献类型：
--
作者：
Brockmole, JR;Irwin, DE
因为视觉感知具有时间范围，所以时间上不连续的输入必须与记忆联系在一起。最近的研究表明，这可能是通过整合视觉短期记忆(VSTM)的活动内容和随后感知的信息来实现的。在本实验中，我们探索了VSTM巩固和维持与眼动之间的关系，以发现注意力是如何选择要整合的信息的。具体地说，我们解决了是否需要公开注意刺激才能包括在记忆表征中，或者隐性注意是否足够。结果表明，在同一空间位置呈现待整合信息的静态显示中，由于被试的眼球运动很少，VSTM巩固不依赖于眼睛。然而，在动态显示中，当要整合的信息呈现在不同的空间位置时，眼动与任务绩效直接相关。我们得出结论，这些差异与不同的编码策略有关。在静态显示情况下，VSTM保持在与其生成时相同的空间位置。这显然可以通过秘密部署注意力来实现。然而，在动态情况下，VSTM是在与要整合的感知之一不重叠的位置产生的。为了“移动”记忆痕迹，需要明显的注意力转移。
Because visual perception has temporal extent, temporally discontinuous input must be linked in memory. Recent research has suggested that this may be accomplished by integrating the active contents of visual short-term memory (VSTM) with subsequently perceived information. In the present experiments, we explored the relationship between VSTM consolidation and maintenance and eye movements, in order to discover how attention selects the information that is to be integrated. Specifically, we addressed whether stimuli needed to be overtly attended in order to be included in the memory representation or whether covert attention was sufficient. Results demonstrated that in static displays in which the to-be-integrated information was presented in the same spatial location, VSTM consolidation proceeded independently of the eyes, since subjects made few eye movements. In dynamic displays, however, in which the to-be-integratted information was presented in different spatial locations, eye movements were directly related to task performance. We conclude that these differences are related to different encoding strategies. In the static display case, VSTM was maintained in the same spatial location as that in which it was generated. This could apparently be accomplished with covert deployments of attention. In the dynamic case, however, VSTM was generated in a location that did not overlap with one of the to-be-integrated percepts. In order to "move" the memory trace, overt shifts of attention were required.