没有学习的探索的神经行为相关:为明确,前和可变的信息获取交易价值
Kristoffer C Aberg1, Rony Paz1
1Department of Brain Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
Cell reports
|February 28, 2024
概括
当人们预计获得更多信息时,人们会更多地探索. 这项研究揭示了大脑区域,包括腹中前额叶皮质,参与信息驱动的探索和个人差异.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 决策科学 决策科学 决策科学
背景情况:
- 探索往往是由信息的追求驱动的,导致有针对性的探索.
- 之前的研究主要研究了学习范式中的探索,缺乏对信息获取量直接操纵.
研究的目的:
- 开发一项任务,将学习与决策分开,并精确控制未来的信息获取.
- 研究基于信息的探索背后的神经机制及其与个体探索趋势的关系.
主要方法:
- 一项新的任务是将学习与决策隔离,并操纵信息获取水平.
- fMRI用于检查在探索任务期间的大脑活动.
- 评估了对价值和信息获取的敏感度的个体差异.
主要成果:
- 参与者表现出更多的探索行为,预计获得更多的信息.
- 腹中介前额叶皮层 (vmPFC),腹条纹体 (VStr),杏仁体,背前环状皮层 (dACC) 和前胰岛 (aINS) 中的神经活动与价值和信息获取相关.
- 个人对信息获取的敏感性特别调节了杏仁体和VStr,而对价值和信息获取的敏感性则调节了vmPFC,dACC和aINS.
结论:
- 这项研究确定了支持基于信息的探索的关键神经回路.
- 人们对信息的评价方式的个体差异会影响特定大脑区域的神经反应.
- 这项工作阐明了由信息搜索驱动的探索偏见的神经基础.
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