Tlauka Michael, Clark C Richard, Liu Ping, Conway Marie
School of Psychology, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia.
Brain Cogn. 2009 Jun;70(1):116-22. doi: 10.1016/j.bandc.2009.01.002. Epub 2009 Feb 11.
This study examined the temporal characteristics of event-related brain electrical activity associated with the processing of spatial memories derived from linguistic and tactile information. Participants learned a map by (1) reading a text description of the map, (2) touching a wooden topological representation of the map (hidden from view), or (3) both. Subsequently, the participants' ability to use their spatial knowledge was tested in a spatial orientation task. Differential patterns of brain activity as a function of encoding modality were found at the very early (preconscious) stages of processing. In contrast, an analysis of behavioral performance revealed no differences between the encoding groups. A model of spatial memory retrieval is presented to account for the findings.
本研究考察了与处理源自语言和触觉信息的空间记忆相关的事件相关脑电活动的时间特征。参与者通过以下方式学习一幅地图：(1)阅读地图的文字描述，(2)触摸地图的木质拓扑表示（隐藏起来不让看），或(3)两者皆用。随后，在空间定向任务中测试参与者运用其空间知识的能力。在处理的非常早期（前意识）阶段发现了作为编码方式函数的不同脑活动模式。相比之下，对行为表现的分析显示编码组之间没有差异。提出了一个空间记忆检索模型来解释这些发现。
