塔拉皮质电路的基于波动的模式
Liam Jennings1, David Hansel2, Nicholas J Priebe1
1The University of Texas at Austin.
bioRxiv : the preprint server for biology
|December 3, 2025
概括
仅仅是thalamic输入可以驱动小鼠视觉皮层 (V1) 神经元中的动作潜力. 这个输入的波动,而不是它的平均强度,足以用于视觉驱动的尖.
科学领域:
- 神经科学是一个神经科学.
- 视觉系统处理 视觉系统处理
- 皮层电路 皮层电路
背景情况:
- 初级视觉皮层 (V1) 中的新皮层神经元整合输入以实现选择性.
- 送模型表明,甲状腺皮层输入驱动选择性,但突触稀疏性质疑其充分性.
研究的目的:
- 为了确定单独的胸膜驱动是否足以引起皮质反应.
- 为了量化活体中产生动作潜力的当前值.
主要方法:
- 鼠标V1中全细胞记录以测量当前值.
- 光遗传性皮质沉默以隔离thalamic输入.
- thalamic输入强度与尖端值的比较.
主要成果:
- thalamic 输入的平均值低于动作潜能生成的门.
- thalamic驱动的试验-by-试验波动足以唤起视觉驱动的动作潜力.
- thalamic刺激可以驱动皮质尖,取决于输入波动.
结论:
- 仅仅是thalamic刺激可以驱动皮质尖.
- 泰拉姆驱动器的有效性取决于突触输入的动态波动.
- 这凸显了输入可变性在皮层处理中的作用.
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