The cognitive buffer hypothesis poses that brain size evolves to buffer individuals from environmental changes, increasing survival. Jiménez‐Ortega et al. (2020) explored this hypothesis using a phylogenetic path analysis and showed that there is a direct causal link between brain size and longevity in birds, even when allometric effects are taken into account. Furthermore, a synergistic model was better supported than models that included independent effects of brain size and body size.

中文翻译：

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摘要：一种协同方法解释了大脑大小和寿命之间的进化联系

认知缓冲假说提出，大脑大小的进化可以缓冲个体免受环境变化的影响，从而提高生存率。Jiménez-Ortega 等。(2020) 使用系统发育路径分析探索了这一假设，并表明即使考虑到异速生长效应，鸟类的大脑大小和寿命之间也存在直接因果关系。此外，与包含大脑大小和身体大小的独立影响的模型相比，协同模型得到了更好的支持。