早期青春期的性别,性别多样性和大脑结构
Carinna Torgerson1,2, Hedyeh Ahmadi1, Jeiran Choupan2
1Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, USA.
Human brain mapping
|April 9, 2024
概括
性关系在青春期早期的脑结构差异最小. 性别多样性与9-11岁儿童的神经结构差异没有直接关联.
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
- 遗传学 遗传学 是一个
背景情况:
- 在青春期早期,关于性别和大脑结构之间的关系存在有限的共识.
- 很少有儿科神经成像研究研究了性别和性别,通常采用小样本大小和二元性别定义.
研究的目的:
- 为了检查性别多样性 (使用连续感觉性别得分) 和性别 (基于X和Y等位基频率) 与9-11岁儿童大脑形态学的关系.
- 确定性别多样性和性别是否独立或共同与大脑形态有关,包括皮质下体积,皮质厚度,化和白质微观结构.
主要方法:
- 采用了一大批9至11岁儿童样本 (N=7195).
- 评估性别多样性,使用连续感觉性别得分,并根据X和Y等位基因频率对性别进行分类.
- 采用统计模型构建方法来分析与大脑形态学的关系.
主要成果:
- 性解释了所有被检查区域的大脑结构变异的比例微不足道到很小.
- 男性与女性在化和白质中的差异主要是由大脑总体积解释的,而不是性别本身.
- 虽然在调整大脑体积后,在大多数灰色和白质区域中,性是最合适的模型,但它的解释能力是最小的. 性别多样性并不是任何大脑区域的重要预测因素.
结论:
- 在青春期 (9-11岁) 早期,性与大脑结构中小比例的变异有关.
- 通过连续感觉性别得分来衡量的性别多样性,与这个年龄组的神经结构多样性没有直接关联.
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