大脑中词语的空间表现,这是在对单方面忽视患者的研究中暗示的
1Cognitive Science Center, Johns Hopkins University, Baltimore, Maryland 21218.
Nature
|July 19, 1990
概括
脑损伤可以通过破坏单词结构的空间编码来影响阅读和拼写. 患者N.G. 的患者. 显示了右侧的错误,表明正写表示是以文字为中心的系统空间组织的.
科学领域:
- 认知神经科学 认知神经科学
- 心理语言学 心理语言学
- 神经学 神经学
背景情况:
- 阅读和写作取决于正写表示,指定单词拼写和图形顺序.
- 了解图形顺序是如何表示和处理在正写表示是一个关键的挑战.
- 单边忽视,由脑损伤引起的疾病,会损害一侧对刺激的感知和反应.
研究的目的:
- 调查正写表示和图形顺序处理的性质.
- 探索空间编码在访问和操纵正写信息中的作用.
- 检查单方面忽视如何影响阅读和拼写过程.
主要方法:
- 一个患者 (N.G.) 的案例研究. 由于单方面忽视.
- 分析患者的阅读和拼写错误.
- 评估跨不同刺激方向和响应类型的绩效.
主要成果:
- 患者N.G. 的患者. 阅读和拼写错误只出现在单词的右半部分,无论单词的长度如何.
- 错误模式在横向,垂直和反向镜像文字呈现中保持一致.
- 在书面,口头和逆向口头拼写响应中观察到一致的错误模式.
结论:
- 正写表示似乎是空间编码的.
- 图形顺序信息在以字为中心的坐标系统中被处理.
- 这个系统是定向不变的,以单词的中点为中心,而不是刺激的中点.
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