与奖励相关的记忆的神经表现在整个发育过程中发生了变化
Alexandra O Cohen1, Susan L Benear2, Camille V Phaneuf-Hadd3
1Department of Psychology, Emory University, Atlanta, Georgia, 30322 cate@nyu.edu ali.cohen@emory.edu.
概括
奖励价值会影响整个发展过程中的记忆. 大脑模式显示奖励影响记忆编码和检索,海马体的表现从成年人的稳定性转移到年轻人的漂移.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 发展心理学 发展心理学
背景情况:
- 奖励可以增强记忆的形成和回忆.
- 在整个发育过程中,基于奖励的记忆的神经机制尚未完全理解.
研究的目的:
- 研究奖励如何影响神经记忆表现.
- 从童年到成年时,检查奖励调制记忆的与年龄相关的变化.
主要方法:
- 在8-25岁的参与者中对fMRI数据的模式相似性分析.
- 在编码和检索过程中检查了与记忆相关的大脑区域的神经表征.
主要成果:
- 奖励信息模块化在腹腔皮和前海马体 (aHC) 的模式相似性.
- 成年人的记忆受益于稳定的aHC表示,而年轻人则从表示漂移中获益.
- 腹部体区域激活与aHC表示漂移相关.
结论:
- 奖励显著调节神经记忆表现.
- 大脑对奖励动机记忆的表达策略随着年龄的增长而演变.
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