从视觉到记忆:在儿童发育过程中,情景敏感区域如何支持情节性记忆的形成?
Xiaoqian J Chai1, Lingfei Tang2, John DE Gabrieli3
1Department of Neurology and Neurosurgery, McGill University, USA.
Developmental cognitive neuroscience
|January 13, 2024
概括
处理视觉场景的大脑区域,包括近海马位区域 (PPA),在儿童和成年人之间显示出不同的记忆发育. 这表明,场景敏感区域的长期发展会影响情节性记忆的形成.
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
- 发育神经科学的发展神经科学.
背景情况:
- 已知有三个大脑区域,即副海马位区域 (PPA),尾位区域 (OPA) 和后皮层 (RSC),对视觉场景敏感.
- 有证据表明,这些地区处理不同的场景信息,并具有不同的发展轨迹.
- 这些场景敏感区域在童年时期的情节性记忆形成中的作用仍然在很大程度上未被探索.
研究的目的:
- 调查儿童 (5-7岁) 和年轻人的情节性记忆形成的发展.
- 在记忆编码过程中,检查在场景敏感区域 (PPA,OPA,RSC) 内的大脑活动和功能连接.
主要方法:
- 利用后续的场景记忆范式与场景的功能定位器相结合.
- 在年龄组之间分析了PPA,OPA和RSC中的大脑激活和功能连接.
- 与神经活动和连接性相关联的记忆性能.
主要成果:
- 在儿童和成人之间观察到PPA,OPA和RSC后续记忆激活和功能连接的显著差异.
- 成年人在所有三个区域都显示出强大的后续记忆效应,而儿童主要在PPA中表现出效应.
- 在成功编码过程中,成年人中存在三个区域之间的功能连接,但在儿童中却不存在.
结论:
- 这些发现突出了与年龄相关的不同,包括对场景敏感的大脑区域的发展以及它们在情节性记忆中的作用.
- 延长的PPA,OPA和RSC的发展与童年时期持续发展的情节性记忆能力有关.
- 这些结果有助于理解记忆发育的神经基础.
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