不协调的睡眠在斑马中在半球之间重演
Margot Elmaleh1, Zetian Yang1, Lyn A Ackert-Smith1
1NYU Neuroscience Institute and Department of Otolaryngology, New York University Langone Medical Center, New York, NY 10016, USA; Center for Neural Science, New York University, New York, NY 10003, USA.
Current biology : CB
|September 27, 2023
概括
大脑半球在唱歌时精确地协调,但在睡眠时独立行动. 这项研究揭示了行为状态如何动态调节斑马的双边大脑协调.
科学领域:
- 神经科学是一个神经科学.
- 动物行为 动物行为
- 系统神经科学 系统神经科学
背景情况:
- 大脑区域通常在人类和动物的半球之间显示同时活动.
- 半球之间内部产生的神经动态的协调及其通过大脑状态的调制尚未得到充分理解.
研究的目的:
- 研究唱歌和睡眠期间大脑半球之间神经活动的时间协调.
- 确定行为状态如何影响斑马的歌曲系统中半球间协调.
主要方法:
- 在斑马 (Zebra Finch) 的骨 (Arcopallium) 的坚固核中双边记录神经活动.
- 分析了在清醒期间唱歌和在睡眠相关的"重播"事件期间的人口活动.
- 检查了左和右RA之间的活动时间同步.
主要成果:
- 在唱歌期间,左侧和右侧RA的神经活动在几毫秒内同步.
- 相比之下,睡眠期间两个半球的重播活动在很大程度上是独立的.
- 尽管独立重播,但在睡眠期间共享了半球间兴奋水平.
结论:
- 在斑马的歌曲系统中,双边协调的程度是由行为状态动态调节的.
- 半球协调对于复杂的发音,如求爱歌,至关重要.
- 睡眠期间独立的半球活动可能反映出不同的神经处理或巩固机制.
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