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非人类脊椎动物的四肢偏好:一个新的十年

Felix Ströckens¹, Maike Schwalvenberg², Yasmin El Basbasse²

¹C. & O. Vogt Institute for Brain Research, University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany.

|May 20, 2025

概括

肢体偏好,或不对称性,在非人类脊椎动物中很常见,不仅仅是人类. 最近的研究证实了许多物种的运动组织模式,突出了进化联系.

科学领域:

比较心理学比较心理学
伦理学伦理学伦理学
神经科学是一个神经科学.
进化生物学进化生物学

背景情况:

人口层面的肢体偏好 (不对称性) 并非人类特有的,而且存在于各种非人类动物物种中.
十多年前的先前分析受到稀缺数据的限制,阻碍了人类手性的进化重建.
研究的重大进展,包括更多的研究,更大的样本大小和元分析,已经填补了这些数据空白.

研究的目的:

更新所有非灭绝的脊椎动物种群的四肢偏好分析.
系统地评估和比较四肢偏好,使用克拉多图学方法.
评估有关脊椎动物四肢不对称的实证证据的现状.

主要方法:

对现有的关于非人类脊椎动物四肢偏好的文献进行系统审查和克拉多格رافی比较.
分析了涵盖172个不同物种的研究数据.
基于存在种群层面,个体层面或没有四肢不对称的证据来对物种进行分类.

主要成果:

非人类脊椎动物对四肢偏好的经验证据由于增加的研究和元分析而得到加强.
在分析的172种物种中,39.53%显示出种群级别的不对称性,32.56%显示出个体级别的不对称性,27.91%显示没有不对称性.
这些发现表明,不对称性是脊椎动物运动组织的广泛特征.

结论:

肢体不对称是各种脊椎动物物种中普遍存在的特征,支持它们在运动组织中的广泛作用.
更新的数据加强了对横向化的进化基础的理解.
未来的研究应该专注于解决已识别的差距,以进一步阐明四肢偏好的进化轨迹.

关键词:

双手性是指使用双手.不对称的不对称性这是一种脚的感觉.横向性的横向性的的的的

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