感官证据在感知决策中的状整合
Lukas N Groschner1, Laura Chan Wah Hak1, Rafal Bogacz2
1Centre for Neural Circuits and Behaviour, University of Oxford, Tinsley Building, Mansfield Road, Oxford OX1 3SR, UK.
Cell
|May 1, 2018
概括
果基尼恩细胞的下值膜电压变化整合了感官证据,用于感知决策. 转录因子FoxP调节通道,控制嗅觉歧视中的决策时间.
科学领域:
- 神经科学是一个神经科学.
- 计算神经科学是一种神经科学.
- 嗅觉处理 嗅觉处理
背景情况:
- 感知决策涉及积累感官信息.
- 之前的模型集中在时间整合的尖端活动上.
- 在证据积累中,下值电压变化的作用尚不清楚.
研究的目的:
- 调查值下膜电压作为证据积累的机制.
- 在嗅觉决策中识别神经基质和时间整合的分子调节器.
- 了解生物物理特性如何为顺序采样量身定制突触集成.
主要方法:
- 在Drosophila体Kenyons细胞中的电生理学记录.
- 在嗅觉任务期间分析值下膜潜力动态.
- 对FoxP转录因子和通道表达 (Shal/K_V4) 的基因操纵.
主要成果:
- 基尼恩细胞中的下值电压波动代表了积累的感官证据.
- 这种整合发生在与嗅觉歧视相关的时间表上.
- FoxP调节了Shal/K_V4通道的丰富性,影响了整合和决策时间.
结论:
- 低于值的电压动态,而不仅仅是升,对于在感知决策中积累证据至关重要.
- 肯昂细胞利用特定的生物物理特性,由FoxP和Shal/K_V4调节,用于嗅觉证据的整合.
- 这提供了一个细胞机制,用于时间整合在连续的感觉采样.
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