van Asselen Marieke, Castelo-Branco Miguel
IBILI-Faculdade de Medicina, University of Coimbra, Coimbra, Portugal.
Atten Percept Psychophys. 2009 Jan;71(1):76-81. doi: 10.3758/APP.71.1.76.
Implicit contextual cuing refers to the ability to learn the association between contextual information of our environment and a specific target, which can be used to guide attention during visual search. It was recently suggested that the storage of a snapshot image of the local context of a target underlies implicit contextual cuing. To make such a snapshot, it is necessary to use peripheral vision. In order to test whether peripheral vision can underlie implicit contextual cuing, we used a covert visual search task, in which participants were required to indicate the orientation of a target stimulus while foveating a fixation cross. The response times were shorter when the configuration of the stimuli was repeated than when the configuration was new. Importantly, this effect was still found after 10 days, indicating that peripherally perceived spatial context information can be stored in memory for long periods of time. These results indicate that peripheral vision can be used to make a snapshot of the local context of a target.
内隐情境线索化是指学习我们环境的情境信息与特定目标之间关联的能力，这种能力可用于在视觉搜索过程中引导注意力。最近有人提出，存储目标局部情境的快照图像是内隐情境线索化的基础。要制作这样的快照，就需要使用周边视觉。为了测试周边视觉是否是内隐情境线索化的基础，我们使用了一项隐蔽视觉搜索任务，要求参与者在注视一个固定十字时指出目标刺激的方向。刺激配置重复时的反应时间比配置为新的时要短。重要的是，10天后仍能发现这种效应，这表明周边感知到的空间情境信息可以长时间存储在记忆中。这些结果表明，周边视觉可用于制作目标局部情境的快照。
