产前大麻暴露对青少年大脑结构和功能连接以及行为结果的影响
Ramana V Vishnubhotla1, Sidra T Ahmad2, Yi Zhao3
1Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
Brain communications
|March 6, 2024
概括
在青少年中,产前大麻暴露与行为问题有关,而不是直接改变大脑结构. 然而,改变的大脑网络相互作用与这些行为结果有关,这表明潜在的潜在机制.
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
- 公共卫生 公共卫生
背景情况:
- 怀孕期间母亲使用大麻的比例越来越高.
- 以前的研究表明,产前大麻暴露可能导致儿童的认知缺陷,包括记忆和注意力障碍.
研究的目的:
- 调查产前大麻暴露与大脑形态测量以及青少年的功能和结构连接之间的关联.
- 探索产前大麻暴露如何通过大脑网络相互作用影响行为结果.
主要方法:
- 利用了青少年大脑认知发展 (ABCD) 研究的数据,包括MRI扫描 (解剖学,扩散,休息状态功能) 和父母报告的行为检查清单得分.
- 在有和没有产前大麻暴露的青少年之间比较大脑形态学 (基于voxel,基于表面) 和连接性 (结构,功能).
- 分析了产前大麻暴露和大脑网络指标与行为评分相关的相互作用.
主要成果:
- 产前接触大麻的青少年在17个行为检查清单子表中的9个中显示出更高的异常或边缘分数.
- 两组之间在脑形态,结构连接或功能连接方面没有发现显著差异.
- 在产前大麻暴露-大脑网络相互作用和行为评分之间观察到显著的关联,确定了三种结构性和七种功能性相互作用.
结论:
- 虽然直接的解剖学或功能性大脑差异没有得到证实,但大脑结构和功能网络相互作用的改变与产前暴露于大麻的青少年的行为结果有显著的关联.
- 这些发现表明,大脑网络中断可能是这群人行为问题的关键因素.
- 需要进一步的研究,以了解这些大脑网络措施的预后价值.
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