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的睡眠恒温和皮层的作用
Sena Hatori1,2, Sho T Yamaguchi1,2, Riho Kobayashi1,2
1Laboratory for Neuroethology, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan.
概括
爬行动物睡眠显示剥夺后的反弹活动,类似于哺乳动物. 大脑皮质在调节背心室脊柱的睡眠反弹方面发挥着至关重要的作用.
科学领域:
- 神经科学是一个神经科学.
- 比较生理学比较生理学
- 睡眠研究 睡眠研究
背景情况:
- 哺乳动物和鸟类的电生理睡眠 (e-sleep) 包括慢波睡眠 (SWS) 和快速眼睛睡眠.
- 睡眠平衡,以睡眠剥夺 (SD) 后的反弹活动为标志,在哺乳动物中得到了充分记录.
- 爬行动物的睡眠模式,特别是在背心室脊 (DVR) 中,表现出独特的特征,包括一个关闭层 (CLA) 同类物.
研究的目的:
- 为了调查爬行动物电子睡眠是否表现出对睡眠损失的恒温补偿.
- 为了确定皮质在调节爬行动物的e-睡眠平衡中的作用.
主要方法:
- 澳大利亚龙 (Pogona vitticeps) 的睡眠剥夺 (7小时).
- 在背心心室脊 (DVR) 和关节 (CLA) 中记录局部场电位 (LFP).
- 皮层切除术 (皮层的手术切除) 来评估它在睡眠调节中的作用.
主要成果:
- 在睡眠剥夺后,在CLA/DVR中观察到LFP功率的显著反弹.
- 睡眠不足并没有影响睡眠状态的平均发作时间.
- 皮膜切除术在睡眠剥夺后取消了CLA/DVR中LFP功率反弹,尽管对基线睡眠没有影响.
结论:
- 电生理学睡眠稳态是氨核生物中保存的特征.
- 在爬行动物和哺乳动物中,皮层参与了睡眠期间活动反弹的调节.
- 爬行动物的睡眠调节与哺乳动物的睡眠恒温有着共同的基本机制.
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