Gaze control and memory for objects while walking in a real world environment
Gaze control and memory for objects while walking in a real world environment
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DOI：
10.1080/13506280902797125
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发表时间：
2009-01-01
期刊：
影响因子：
2
通讯作者：
Eckstein, Miguel P.
中科院分区：
文献类型：
--
作者：
Droll, Jason A.;Eckstein, Miguel P.
凝视行为和物体记忆的评估通常是在实验范例的背景下进行的，这些实验范例简要地呈现了合成或真实场景的瞬时静态图像。关于观察者在现实世界环境中对物体的凝视行为和记忆，我们知之甚少。20名受试者戴着移动眼镜器，完成了一项任务，他们绕着一栋建筑走了八圈，要么被告知正常行走，要么也被要求在行走后被问及他们看到了什么。在他们行走的过程中，沿途的9个物体被交换为相同类别的类似象征性物体(例如，用扫帚换取推扫)。被告知准备记忆测试的观察者比被告知正常行走的观察者更有可能注意到物体的变化(32%比5%)。检测到的物体变化在变化之前也被注视了更长的持续时间，这表明任务需求在凝视控制和视觉信息的选择性存储中起到了作用。
Assessments of gaze behaviour and object memory are typically done in the context of experimental paradigms briefly presenting transient static images of synthetic or real scenes. Less is known about observers' gaze behaviour and memory for objects in a real world environment. While wearing a mobile eyetracker, 20 subjects performed a task in which they walked around a building eight times and were either told to walk normally, or to also expect to be asked about what they saw following their walk. During the course of their walk, nine objects along their path were exchanged for similar token objects of the same category (e.g., whisk broom for push broom). Observers told to prepare for a memory test were much more likely to notice object changes than observers simply told to walk normally (32% vs. 5%). Detected object changes were also fixated for longer duration prior to the change, suggesting a role of task demand in gaze control and the selective storage of visual information.