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将两个前额前脑区域的进化与灵长类动物的社会和食挑战联系起来
Sebastien Bouret1, Emmanuel Paradis2, Sandrine Prat3
1Team Motivation Brain & Behavior, ICM - Brain and Spine Institute, Paris, France.
eLife
|October 29, 2024
概括
灵长类动物的大脑进化,特别是前极 (FP) 和后侧前额皮层 (DLPFC) 卷,是由生态和社会因素共同塑造的. 生态约束影响元认知和工作记忆,而社会因素对FP的影响更为显著.
科学领域:
- 神经科学是一个神经科学.
- 进化生物学 进化生物学
- 灵长类动物学 灵长类动物学
背景情况:
- 灵长类动物的认知技能多样性是有争议的,关于社会与生态影响的证据相互矛盾.
- 了解灵长类认知的进化驱动因素对于比较神经科学至关重要.
研究的目的:
- 研究灵长类动物前额头大脑区域大小与社会生态变量之间的关系.
- 确定社会和生态约束对元认知和工作记忆的演变的相对贡献.
主要方法:
- 结合了比较性认知神经科学和行为生态学的方法.
- 分析了来自16种灵长类动物的大脑成像数据,测量了前极 (FP) 和背侧前额皮层 (DLPFC) 的体积.
- 与身体质量,每天行驶的距离 (生态约束) 和人口密度 (社会约束) 相关的前额外体积.
主要成果:
- 身体质量,每天行驶的距离和人口密度最好地解释了FP,DLPFC和整个大脑体积的尺寸变化.
- 生态限制显著影响了FP和DLPFC的数量,这表明它们在食中的重要性.
- 与DLPFC体积相比,前极 (FP) 体积对社会约束的敏感性更大.
结论:
- 社会和生态因素都在灵长类大脑进化中发挥着重要作用,对特定的前额叶区域产生不同的影响.
- 生态因素对元认知和工作记忆的演变至关重要,对于灵长类动物的食策略至关重要.
- 前极 (FP) 特别受到社会约束的影响,与其在复杂的社会互动中的作用保持一致.
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