空间意识是叶的功能,而不是后壁叶的功能
H O Karnath1, S Ferber, M Himmelbach
1Department of Cognitive Neurology, University of Tübingen, Germany. karnath@uni-tuebingen.de
Nature
|June 22, 2001
概括
空间疏忽是一种意识障碍,与人类和子的上皮质有关. 这一发现挑战了传统的观点,表明人类的空间意识是侧向右半球的.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 比较神经学 比较神经学
背景情况:
- 空间疏忽传统上与人类的后壁叶损伤有关.
- 存在差异,因为子中的空间疏忽与上皮层病变有关.
- 这突显了对跨物种空间意识的神经基础的理解上的差距.
研究的目的:
- 为了研究人类空间疏忽的神经基质.
- 解决关于涉及空间疏忽的大脑区域的物种差异.
- 探索从子到人类的空间意识表现的进化变化.
主要方法:
- 人类的损伤映射研究.
- 人类和子大脑之间的损伤影响的比较分析.
- 大脑区域与空间疏忽症状的神经解剖学和功能相关性.
主要成果:
- 上皮质,而不是后壁叶,被认为是人类空间疏忽的神经基质.
- 这一发现与子的观察结果一致,解决了物种间的差异.
- 人类的空间意识在很大程度上局限于右上皮层,与子的双边功能不同.
结论:
- 这项研究驳斥了长期以来的信念,即空间疏忽仅与人类的顶叶损伤有关.
- 上皮质是人类和子空间疏忽的关键区域.
- 遗传学进化涉及以前双边空间意识向人类右半球的横向化,可能与语言横向化并行.
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