决策的神经状态空间的几何结构
bioRxiv : the preprint server for biology
|February 3, 2025
概括
在决策过程中,侧侧内区域 (LIP) 的神经群活动形成了不同的轨迹. 这些模式揭示了从感官证据收集到承诺的过渡,影响反应时间和运动精度.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 计算神经科学是一种神经科学.
背景情况:
- 了解神经群体如何编码信息对于破译认知过程至关重要.
- 侧侧内皮区域 (LIP) 参与决策和感觉运动转换.
研究的目的:
- 调查在认知任务期间信息处理的基础人口级神经动力学.
- 描述神经活动模式,反应时间和决策承诺之间的关系.
主要方法:
- 在随机点运动方向歧视任务期间,对 LIP 的高产量种群记录进行分析.
- 检查神经活动轨迹在一个二维多重体内.
- 开发和测试一个机械电路模型来解释观察到的动态.
主要成果:
- 神经群活动在2D多元体内形成曲线轨迹,具有缓慢与快速决策的独特模式.
- 观察到从一个杂的,共享的审议阶段过渡到一个不那么杂的,分歧的承诺阶段.
- 模型对选择选择性变化和落下叶的预测在数据中得到了验证.
结论:
- 神经群体动态表现出不同的阶段 (故意和承诺),这些阶段随反应时间而变化.
- 阶段之间的过渡反映了从感觉驱动到电路驱动的神经动态的转变.
- 分布的神经活动和内在电路属性是实现认知任务的关键.
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