鼠标听觉皮层中与运动相关的调制是普遍存在的,但局部多样化
Karin Morandell1, Audrey Yin1, Rodrigo Triana Del Rio1
1Center for Neural Science, New York University, New York, New York 10012.
概括
运动显著影响小鼠的听觉皮层神经元. 这项研究发现,移动机械运动.
科学领域:
- 神经科学是一个神经科学.
- 审计处理 审计处理
- 发动机控制器的控制器
背景情况:
- 听力皮层神经元表现出行为调制,包括在运动过程中抑制和增强反应.
- 鼠标的听觉皮层包含多个领域,具有专门的声音处理和与运动中心的连接.
- 以前的研究表明,在听觉皮层内的单细胞水平上,与运动相关的调制存在异质性.
研究的目的:
- 为了调查与运动相关的调制是否在雄性小鼠的不同听觉皮质场之间有所不同.
- 了解特定场域调制对运动期间神经反应整体异质性的贡献.
- 描述运动如何影响不同听觉皮层区域的声音处理.
主要方法:
- 利用广场成像来划分听觉皮层领域.
- 采用细胞分辨率的两光子成像来监测2/3层激发性神经元活动.
- 在跑步机上休息和运动时记录神经对纯色调,声和振幅调制的白噪声的反应.
主要成果:
- 个体神经元通常对单一的声音类别做出反应,在各种条件下保持调.
- 运动调节了单细胞水平的声音唤起的反应,导致抑制和增强.
- 运动对听觉反应的净效应在不同的听觉皮质场中保持不变.
- 与运动相关的调制反映了跑步速度和非机动运动,在所有领域都观察到类似的模式.
结论:
- 与运动相关的调制是老鼠听觉皮层中普遍存在的现象.
- 尽管在声音处理方面存在特定领域的差异,但运动对听觉反应的影响在很大程度上保持不变.
- 听觉皮层活动受到各种行为状态的复杂影响,超出了简单的运动.
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