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在高和低延迟折扣器之间的结构共变性网络中的不同拓模式
Wi Hoon Jung1, Euitae Kim2,3
1Department of Psychology, Gachon University, Seongnam, Republic of Korea.
冲动性较高的个体 (高延迟折扣) 呈现出不同的大脑网络结构. 这表明大脑网络拓与年轻成年人的冲动决策之间存在联系.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 脑部成像 脑部成像
背景情况:
- 人们往往更喜欢即时的奖励而不是未来的奖励,因为延迟折扣是一种冲动性的措施.
- 这些偏好的神经支,特别是大规模结构性大脑网络,仍然在很大程度上未被探索.
研究的目的:
- 研究大脑中的结构性协差网络如何与延迟折扣的个体差异有关.
- 为了比较高和低折扣倾向的个体之间的大脑网络的拓性质.
主要方法:
- 根据时间间的选择,将年轻人分为高折扣组 (HDG) 和低折扣组 (LDG).
- 采用图形理论分析来比较灰色物质基于体积的结构共变性网络的全球和区域拓特性.
主要成果:
- 与LDG相比,HDG显示网络分离减少 (集群系数) 和集成增加 (特征路径长度).
- HDG在他们的大脑网络中表现出更明显的小世界性.
- HDG在准海马圈和杏仁体之间具有较低的中心性.
结论:
- 结构共变网络拓与冲动选择有关,如延迟折扣所示.
- 研究结果阐明了大脑形态与冲动行为之间的关系,特别是在年轻人中.
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