历史信息在学习过程中出现在皮质中
Odeya Marmor1, Yael Pollak1, Chen Doron1
1Department of Medical Neurobiology, Faculty of Medicine, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University of Jerusalem, Jerusalem, Israel.
eLife
|November 3, 2023
概括
在学习过程中,试验史信息在大脑中出现. 这种过去的经验被编码在高阶关联皮质 (RL) 中,然后传递到皮质前皮质 (BC),帮助感官学习.
科学领域:
- 神经科学是一个神经科学.
- 系统神经科学 系统神经科学
- 认知神经科学 认知神经科学
背景情况:
- 学习涉及将过去的经验与当前信息整合起来,但这方面的神经基础尚不清楚.
- 识别在学习过程中编码和处理历史信息的皮质区域至关重要.
研究的目的:
- 为了调查哪些皮质区域编码试验史信息.
- 了解这些信息在学习过程中是如何调节的.
- 探索历史编码在不同皮层区域的时间动态.
主要方法:
- 在执行纹理区分任务的小鼠中,持续的皮质全方位成像.
- 对神经活动模式的分析与试验历史和学习相关.
- 使用二进制分类器来从神经数据中解码试验历史.
主要成果:
- 试验史信息在刺激呈现期间在前皮层 (BC) 中被发现,特别是在学习时出现.
- 学习依赖的试验史信息也被确定在面向侧面 (RL) 关联皮质中,在BC之前的活动.
- 这种历史编码在多个皮质区域观察到,并且独立于运动运动.
- 对试验历史的单一试验歧视与对BC和RL的当前信息的歧视同样有效.
结论:
- 过去的经验在学习过程中被编码在皮质中,起源于更高阶的RL区域.
- 这些信息以自上而下的方式传播到低级BC以集成与感官输入.
- 在BC中整合过去和现在的信息可能会促进学习过程.
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