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Updated: Feb 13, 2026

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A Real-world What-Where-When Memory Test
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前额前部工作记忆活动部分介导了9-13岁儿童中丰富的邻居环境和情节性记忆之间的联系
bioRxiv : the preprint server for biology
|February 12, 2026
概括
社区丰富对青少年的情节性记忆和大脑功能产生了积极的影响. 前额叶皮层活动部分调解了这种联系,这表明有针对性的干预措施可以支持认知发展.
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:
- 众所周知,丰富的环境可以支持年轻人的神经发育.
- 将环境丰富与情节性记忆等认知功能联系在一起的特定途径仍然未被充分探索.
- 了解这些途径对于确定用于认知增强的有效干预措施至关重要.
研究的目的:
- 调查大脑功能和结构是否调解了青少年邻居丰富和情节性记忆表现之间的关系.
- 在这个调解过程中,检查神经电路在情节记忆中所扮演的角色.
主要方法:
- 从青少年大脑认知发展研究 (n=9,028) 的数据分析,跨越两个时间点 (9-11岁和11-13岁).
- 使用儿童机会指数2.0 (COI) 量化社区丰富程度.
- 通过图片序列记忆测试 (PSMT) 评估的情节性记忆.
- 多模式神经成像分析了26个大脑区域的基于任务的功能活动,大脑体积和静止状态活动.
主要成果:
- 较高的邻近丰富度 (COI分数) 与更好的情节性记忆,前额叶皮层 (PFC) 基于任务的活动增加,以及更大的PFC和中间叶体积直接相关.
- 基于PFC任务的功能活动,特别是在某些额头旋转和左侧关节,部分介导了邻里丰富和情节性记忆之间的积极关联.
- 大脑体积和内在活动并没有显著调解这种关系.
结论:
- 环境丰富通过特定的神经通路影响青少年的神经认知发育,特别是情节性记忆.
- 促进社区获取丰富体验的干预措施可能会在敏感的发育时期为认知发展带来长期益处.
- 针对PFC功能活动可能是通过环境丰富增强情节性记忆的关键机制.
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