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大脑年龄差距与被囚禁的黑猩猩的认知能力有关
William D Hopkins1, Sophia Frangou2,3, Ruiyang Ge2
1Department of Comparative Medicine and Michale E Keeling Center for Comparative Medicine and Research, The University of Texas MD Anderson Cancer Center, Bastrop, TX, 78602, USA. wdhopkins@mdanderson.org.
大脑年龄差距,大脑衰老的衡量标准,首次在黑猩猩身上计算出来. 黑猩猩的大脑年龄较大与认知表现较差相关,类似于人类研究.
科学领域:
- 神经科学是一个神经科学.
- 比较认知能力的比较
- 衰老研究研究 衰老研究
背景情况:
- 大脑年龄差距,即时间和大脑年龄之间的差异,是人类衰老速度的生物标志物,受遗传学和环境的影响.
- 以前的研究已经通过神经成像在人类中建立了大脑年龄差距,但它在非人类灵长类动物中的适用性尚未被探索.
研究的目的:
- 为了确定从黑猩猩的神经成像数据中是否可以估计大脑年龄差距.
- 为了研究大脑年龄差距与黑猩猩的认知和运动现象之间的关联.
主要方法:
- 利用了215只黑猩猩的存档神经成像数据 (皮层厚度,表面积).
- 使用计算模型计算大脑年龄差距值.
- 评估了大脑年龄差距与认知和运动功能的个体变化之间的相关性.
主要成果:
- 黑猩猩的大脑平均年龄差距约为6年,与人类研究相比.
- 带有"年龄较大的"大脑年龄的黑猩猩表现出比拥有"年轻"大脑的黑猩猩更差的认知表现,在考虑到性别和养育后.
- 发现大脑年龄差异对个体认知差异敏感.
结论:
- 大脑年龄差距是黑猩猩大脑衰老的有效生物标志物.
- 这一发现扩大了大脑年龄差距的实用性,作为对物种间认知变异敏感的测量标准.
- 该研究强调了跨物种比较在理解衰老过程中的潜力.
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