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在生命的前两年,大脑与行为关系的性别差异
Sonja J Fenske1,2,3, Janelle Liu1,2, Haitao Chen1,2,4
1Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N. Robertson Blvd., PACT 800.7G, Los Angeles, CA 90048, United States.
Cerebral cortex (New York, N.Y. : 1991)
|June 9, 2025
概括
大脑连接的性别差异在婴儿期出现,将特定的神经通路与以后的认知和行为结果联系起来. 这些大脑行为关系在性别之间是不同的,对于理解发育差异至关重要.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 认知科学 认知科学
背景情况:
- 儿童认知中确定的性别差异缺乏明确的神经支.
- 婴儿大脑-行为关系显示异质性,但在早期发育过程中,基于性别的影响仍然不清楚.
研究的目的:
- 研究婴儿认知和行为发展的性别特异的神经机制.
- 确定休息状态功能连接差异如何与性和以后的行为结果有关.
主要方法:
- 利用休息状态功能磁共振成像 (fMRI) 对多个时间点的316名婴儿进行扫描 (新生儿,1岁,2岁).
- 在4岁时使用多重线性回归来分析性别,功能连接和行为得分 (工作记忆,自我控制,智力,焦虑) 之间的相互作用.
主要成果:
- 确定了6个特定于年龄的半球内连接,它们与行为之间的关系有显著的性别差异.
- 这些连接涉及前额叶皮层或与之解剖相关的区域.
- 功能连接的性别差异仅在与行为相关时才明显,而不是孤立.
结论:
- 强大的,与行为相关的性别特异性大脑机制在早期发育过程中出现.
- 这些发现强调了大脑与行为之间的关系是理解发育性差异的关键.
- 前额叶皮质在性别特定的认知和行为发展中发挥着关键作用.
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