Metabolic costs of brain size evolution
Metabolic costs of brain size evolution
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DOI：
10.1098/rsbl.2006.0538
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发表时间：
2006-12-22
期刊：
影响因子：
3.3
通讯作者：
van Schaik, Carel P.
中科院分区：
文献类型：
--
作者：
Isler, Karin;van Schaik, Carel P.
在有关脊椎动物大脑进化的持续讨论中，主要兴趣已从关注能量平衡的理论转向提出增强智力的社会或生态效益的理论。随着大量关于基础代谢率（BMR）和大脑大小的新数据的出现，并借助可靠的比较分析技术，我们能够证明，事实上能量学是维持相对较大大脑的一个问题，并且大脑大小与哺乳动物的基础代谢率呈正相关，控制了体型的影响。我们的结论是，试图解释不同类群的大脑大小差异必须考虑维持能量成本和认知益处的能力。
In the ongoing discussion about brain evolution in vertebrates, the main interest has shifted from theories focusing on energy balance to theories proposing social or ecological benefits of enhanced intellect. With the availability of a wealth of new data on basal metabolic rate ( BMR) and brain size and with the aid of reliable techniques of comparative analysis, we are able to show that in fact energetics is an issue in the maintenance of a relatively large brain, and that brain size is positively correlated with the BMR in mammals, controlling for body size effects. We conclude that attempts to explain brain size variation in different taxa must consider the ability to sustain the energy costs alongside cognitive benefits.