在控制上肢运动中的半球不对称性
1Department of Psychology, University of Campania 'Luigi Vanvitelli', Caserta, Italy.
Handbook of clinical neurology
|March 12, 2025
概括
工具使用和绘画等人类能力涉及两个半球的复杂大脑网络. 手势模仿显示出强烈的左半球横向化,而形成性活动则利用互补的半球角色.
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
- 神经生物学 神经生物学 神经生物学
背景情况:
- 人类的能力,如工具使用,手势模仿,绘画和对象组装是复杂的认知功能.
- 影响这些能力的障碍包括上肢无力 (工具使用/模仿) 和结构性无力 (绘画/组装).
- 这些疾病通常与神经退行性疾病和焦点脑损伤有关.
研究的目的:
- 探索人类独特能力的神经基础:工具使用,手势模仿,绘画和建筑.
- 讨论涉及这些功能的大脑不对称性,借鉴神经心理学和神经成像数据.
- 调查半球贡献和潜在的共享计算过程.
主要方法:
- 对临床表现的审查和对上肢和结构性无力症的评估.
- 对患有焦点脑损伤的患者进行的神经心理学研究的分析.
- 对健康个体的功能神经成像发现的考虑.
主要成果:
- 使用工具,模仿手势和形成性活动 (绘画,组装) 参与了两个半球的分布式神经网络.
- 在右撇子中,手势处理显著侧向左半球.
- 形成性活动涉及到互补的半球贡献,其中左下顶叶叶可能具有特定的作用.
结论:
- 这些复杂的人类技能需要在两个半球的多个大脑区域和网络的相互作用.
- 手势处理的横向化和形成性活动中的互补作用突出显示了半球专业化.
- 这些功能在头顶叶的融合表明,共享的计算过程是它们在人类进化背后的基础.
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