Pantelides Stephanie N, Avraamides Marios N
Department of Psychology, University of Cyprus, Nicosia, Cyprus.
Center for Applied Neuroscience, University of Cyprus, P.O Box: 20537, Nicosia, Cyprus.
Cogn Process. 2019 Aug;20(3):349-358. doi: 10.1007/s10339-019-00909-y. Epub 2019 Feb 26.
In two experiments, we examined whether the presence of stable visual information and the confluence of the viewpoints would cause participants to integrate in a single memory representation spatial locations they encoded at different points in time. Participants studied from the same or from different viewpoints two layouts of objects within a common visually cluttered room. Then, they carried out a series of pointing trials that involved objects from either the same or different layouts. Results showed that participants were faster for within- than between-layout judgments when they had studied the two layouts from different viewpoints but were equally fast across the two types of judgment after studying the layouts from the same viewpoint (Experiment 1). This finding suggests that they integrated locations into a single representation only when encoding the layouts from the same viewpoint. However, when participants' memory for the layout studied first was refreshed prior to testing (Experiment 2), no difference in response time was found, suggesting that they had integrated all locations in a single representation before the beginning of testing.
在两项实验中，我们研究了稳定视觉信息的存在以及视点的融合是否会使参与者将他们在不同时间点编码的空间位置整合到单一记忆表征中。参与者在一个视觉上杂乱的普通房间里，从相同或不同的视点研究了两种物体布局。然后，他们进行了一系列指向试验，试验涉及来自相同或不同布局的物体。结果表明，当参与者从不同视点研究这两种布局时，他们对布局内判断的速度比对布局间判断的速度更快，但在从相同视点研究布局后，这两种判断类型的速度相同（实验1）。这一发现表明，他们只有在从相同视点编码布局时，才会将位置整合到单一表征中。然而，当参与者对首先研究的布局的记忆在测试前得到更新时（实验2），未发现反应时间有差异，这表明他们在测试开始前就已经将所有位置整合到单一表征中。
