Dipartimento di Psicologia, Università degli Studi di Torino, Turin, Italy.
Psychol Res. 2010 Nov;74(6):545-59. doi: 10.1007/s00426-010-0276-5. Epub 2010 Feb 20.
We investigated the characteristics of route and survey processing of a unique complex virtual environment both at the behavioral and brain levels. Prior to fMRI scanning, participants were trained to follow a route and to learn the spatial relationships between several places, acquiring both route and survey knowledge from a ground-level perspective. During scanning, snapshots of the environment were presented, and participants were required to either indicate the direction to take to follow the route (route task), or to locate unseen targets (survey task). Data suggest that route and survey processing are mainly supported by a common occipito-fronto-parieto-temporal neural network. Our results are consistent with those gathered in studies concerning the neural bases of route versus survey knowledge acquired either from different perspectives or in different environments. However, rather than arguing for a clear distinction between route and survey processing, "mixed" strategies are likely to be involved when both types of encoding take place in the same environment.
我们在行为和大脑水平上研究了独特复杂虚拟环境的路径和调查处理特征。在 fMRI 扫描之前，参与者被训练按照路线走并学习几个地方之间的空间关系，从地面视角获得路线和调查知识。在扫描过程中，会呈现环境的快照，参与者需要指示沿着路线走的方向（路线任务），或者定位看不见的目标（调查任务）。数据表明，路径和调查处理主要由一个共同的枕额顶颞叶神经回路支持。我们的结果与那些从不同视角或在不同环境中获得路径与调查知识的神经基础研究结果一致。然而，当两种类型的编码都在同一个环境中进行时，“混合”策略可能更有可能涉及，而不是在路径和调查处理之间进行明确区分。
