感官历史驱动了LP/Pulvinar-Prefrontal皮层电路中的自适应神经几何学
bioRxiv : the preprint server for biology
|November 28, 2024
概括
通过估计试验差异,小鼠使用先前的视觉证据来指导决策. 侧向后部 (LP) - 前部环状皮层 (ACC) 途径对于这种适应性行为至关重要,影响刺激的选择和评估.
科学领域:
- 神经科学是一个神经科学.
- 决策方式 决策方式
- 感官处理 感官处理
背景情况:
- 预先的期望会影响注意力和感知,从而产生有效的决策.
- 侧侧后部 (LP) /肺核向前皮质 (ACC) 投射,涉及注意力和预测.
- 对于LP-ACC途径在使用刺激史进行决策方面的功能仍然不清楚.
研究的目的:
- 研究LP-ACC途径在基于刺激史的适应性决策中的作用.
- 了解LP-ACC途径如何处理有关试验之间的证据差异的信息.
主要方法:
- 在视觉区分任务中对小鼠LP-ACC轴突进行光遗传学操纵.
- 两光子成像LP-ACC轴突以分析神经表征.
- 对行为数据的分析,以评估先前刺激史的估计和使用.
主要成果:
- 破坏LP-ACC预测损害了估计和利用刺激史的能力,导致了 Δ Dir 依存偏差.
- LP-ACC轴突活动显示了沿着一个曲的分流体的低维刺激组织.
- 这种神经表征是通过 Δ Dir 进行缩放的,强调从先前证据的偏差.
结论:
- 通过评估相对于先前证据的刺激,LP-ACC途径对于适应性决策至关重要.
- 这一途径在根据历史背景选择和处理感官信息方面发挥着至关重要的作用.
- 这些发现揭示了一个神经机制,用于将过去的信息整合到当前的选择中.
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