对工作记忆激活模式和皮质灰质结构性质的遗传影响
Maryam Fatemi1, Mohammad Reza Daliri2
1Neuroscience & Neuroengineering Research Lab, Biomedical Engineering Department, School of Electrical Engineering, Iran University of Science & Technology (IUST), Narmak, Tehran, Iran.
Scientific reports
|July 2, 2025
概括
遗传因素对工作记忆大脑激活模式有很大影响,特别是在头顶和额头区域. 然而,这些对功能的遗传影响与大脑结构的遗传性没有直接关联,揭示了不同的遗传贡献.
科学领域:
- 神经科学是一个神经科学.
- 认知神经科学 认知神经科学
- 行为遗传学 行为遗传学
背景情况:
- 工作记忆对于决策和执行功能至关重要.
- 遗传学和环境对工作记忆大脑活动的相对贡献尚未完全理解.
- 确定参与工作记忆的特定皮质区域及其遗传性是一个关键的研究问题.
研究的目的:
- 使用功能性MRI识别工作记忆相关的皮质区域.
- 评估基因对这些区域内激活模式的影响.
- 研究基因影响对功能激活和结构性大脑特性之间的关系.
主要方法:
- 分析了424个单胞胎 (MZ) 和双胞胎 (DZ) 双胞胎对的功能性MRI数据,这些双胞胎来自人类结合体项目.
- 将MZ和DZ双胞胎之间的激活模式相似性进行比较,以确定遗传贡献.
- 结构性MRI分析检查在遗传影响区域的皮质曲率,厚度和髓化.
主要成果:
- 与工作记忆相关的区域的激活模式显示,MZ双胞胎与DZ双胞胎相比,MZ双胞胎的相似性明显更高,这表明有很强的遗传影响.
- 对激活有显著的遗传影响的关键区域包括中枢内区域 (MIP),各种内和前额叶皮层区域,以及运动/前运动皮层.
- 对大脑结构的遗传影响不同,后带带皮层,视觉皮层和中间皮层的影响更强. 皮层厚度和髓化也显示在特定区域 (如R-7Pm,R-AIP) 有遗传影响的变异.
结论:
- 遗传因素在塑造工作记忆相关的功能性大脑激活方面发挥着重要作用.
- 工作记忆功能激活的遗传基础与影响大脑宏观结构特征的遗传基础不同.
- 这项研究为对大脑功能和结构的遗传贡献之间的复杂相互作用提供了新的见解.
关键词:
双胞胎双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ) 双胞胎 (DZ)遗传性 遗传性是可以继承的.双胞胎单胞胎 (MZ) 双胞胎是什么意思工作记忆 工作记忆更多相关视频
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