Department of Human Communication Sciences, University of Sheffield, Sheffield, United Kingdom.
J Exp Psychol Learn Mem Cogn. 2010 May;36(3):646-58. doi: 10.1037/a0018281.
Investigating spatial cognition in individuals with acquired language impairments can inform our understanding of how components of language are involved in spatial representation. Using the reorientation paradigm of Hermer-Vazquez, Spelke, and Katsnelson (1999), we examined spatial cue integration (landmark-geometry conjunctions) in individuals with severe agrammatic or global aphasia and in a group of healthy older adults. Participants with aphasia performed similarly to healthy controls in the reorientation task, demonstrating the ability to integrate landmark and geometric cues, even during a concurrent verbal task designed to block access to any residual lexical resources. These results extend previous findings with healthy adults by suggesting that neither syntax nor lexicon is essential for spatial cue representation in a mature cognitive system, and provide further evidence that language deficits in aphasia can be independent from other domains of reasoning.
研究后天语言损伤个体的空间认知能力可以帮助我们了解语言的各个组成部分如何参与空间表达。通过使用 Hermer-Vazquez、Spelke 和 Katsnelson（1999）的重新定向范式，我们研究了严重语法缺失或全球型失语症患者以及一组健康老年人的空间线索整合（地标-几何结合）。在重新定向任务中，失语症患者的表现与健康对照组相似，这表明他们能够整合地标和几何线索，即使在设计用于阻止任何剩余词汇资源访问的并发口头任务中也是如此。这些结果通过表明在成熟的认知系统中，空间线索表示既不需要语法也不需要词汇，从而扩展了之前关于健康成年人的研究结果，并进一步证明了失语症中的语言缺陷可以与其他推理领域无关。
