The primitive brain of early <em>Homo</em>

doi:10.1126/science.aaz0032

GSTDTAP > 气候变化

DOI	10.1126/science.aaz0032
	The primitive brain of early Homo
	Marcia S. Ponce de León; Thibault Bienvenu; Assaf Marom; Silvano Engel; Paul Tafforeau; José Luis Alatorre Warren; David Lordkipanidze; Iwan Kurniawan; Delta Bayu Murti; Rusyad Adi Suriyanto; Toetik Koesbardiati; Christoph P. E. Zollikofer
	2021-04-09
发表期刊	Science
出版年	2021
英文摘要	Human brains are larger than and structurally different from the brains of the great apes. Ponce de León et al. explored the timing of the origins of the structurally modern human brain (see the Perspective by Beaudet). By comparing endocasts, representations of the inner surface of fossil brain cases, from early Homo from Africa, Georgia, and Southeast Asia, they show that these structural innovations emerged later than the first dispersal of the genus from Africa, and were probably in place by 1.7 to 1.5 million years ago. The modern humanlike brain organization emerged in cerebral regions thought to be related to toolmaking, social cognition, and language. Their findings suggest that brain reorganization was not a prerequisite for dispersals from Africa, and that there might have been more than one long-range dispersal of early Homo . Science , this issue p. [165][1]; see also p. [124][2] The brains of modern humans differ from those of great apes in size, shape, and cortical organization, notably in frontal lobe areas involved in complex cognitive tasks, such as social cognition, tool use, and language. When these differences arose during human evolution is a question of ongoing debate. Here, we show that the brains of early Homo from Africa and Western Asia (Dmanisi) retained a primitive, great ape–like organization of the frontal lobe. By contrast, African Homo younger than 1.5 million years ago, as well as all Southeast Asian Homo erectus , exhibited a more derived, humanlike brain organization. Frontal lobe reorganization, once considered a hallmark of earliest Homo in Africa, thus evolved comparatively late, and long after Homo first dispersed from Africa. [1]: /lookup/doi/10.1126/science.aaz0032 [2]: /lookup/doi/10.1126/science.abi4661
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/322092
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Marcia S. Ponce de León,Thibault Bienvenu,Assaf Marom,et al. The primitive brain of early Homo[J]. Science,2021.
APA	Marcia S. Ponce de León.,Thibault Bienvenu.,Assaf Marom.,Silvano Engel.,Paul Tafforeau.,...&Christoph P. E. Zollikofer.(2021).The primitive brain of early Homo.Science.
MLA	Marcia S. Ponce de León,et al."The primitive brain of early Homo".Science (2021).