Retracing the evolutionary steps by which human brains evolved can offer insights on the underlying mechanisms of human brain function as well as the phylogenetic origin of various features of human behavior. To this end, this paper presents a model for interpreting the physical and behavioral modifications throughout major milestones in human brain evolution. This model introduces the concept of a “breakthrough” as a useful tool for interpreting suites of brain modifications and the various adaptive behaviors these modifications enabled. This offers a unique view into the ordered steps by which human brains evolved and suggests several unique hypotheses on the mechanisms of human brain function.

中文翻译：

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五项突破：从早期两侧对称动物到人类的大脑进化的初步近似

追溯人类大脑进化的进化步​​骤可以深入了解人类大脑功能的潜在机制以及人类行为各种特征的系统发育起源。为此，本文提出了一个模型，用于解释人类大脑进化的主要里程碑中的身体和行为变化。该模型引入了“突破”的概念，作为解释大脑修改套件以及这些修改所实现的各种适应性行为的有用工具。这为人类大脑进化的有序步骤提供了独特的视角，并提出了一些关于人类大脑功能机制的独特假设。