人口对 parietal 皮层中的决策信心的代表性
Ariel Zylberberg1, Michael N Shadlen2
1Mortimer B. Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY, USA; Virtual Confidence and Metacognition Laboratory, New York, NY, USA.
侧侧内 (LIP) 区域的神经元可能会发出决策信心的信号. 这项研究揭示了证据积累期间神经活动如何与子的选择准确性有关.
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 决策 决策 决策
背景情况:
- 决策往往是相互竞争的证据积累过程的结果.
- 自信的神经基础,反映选择准确性,仍然不完全理解.
- 侧侧内皮 (LIP) 区域与证据积累和决策有关.
研究的目的:
- 调查参与证据积累的神经元是否也编码了决策信心.
- 要确定神经活动是否预测在感知决策任务中的选择准确性.
主要方法:
- 子执行了一个反应时间随机点运动任务.
- 进行了从侧侧膜内皮 (LIP) 区域的种群记录.
- 对神经活动进行了分析,与选择准确性和行为措施相关.
主要成果:
- 在LIP区域的神经元 (Tin神经元) 在选择报告之前不久传递了关于选择准确性的信息.
- 这种神经信息与人类观察到的自信行为特征一致.
- 尽管平均独立于反应时间和运动强度,但人口异质性解释了准确性预测.
结论:
- 代表证据积累的神经元可以为决策信心提供信号.
- 在LIP人群中神经反应的异质性对于编码信心至关重要.
- 这些发现提供了关于主观信心背后的神经机制的见解.
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