轻量适应和可回收植入物 (LARI) 用于慢性单双神经像素2.0记录,用于功能丰富的环境中的自然主义行为
bioRxiv : the preprint server for biology
|February 6, 2026
概括
新的LARI植入物提供轻量级,可调节的解决方案,用于在自然决策过程中在小鼠中稳定,长期的神经记录. 这些系统提高了数据质量,并减少了用于增强大脑活动研究的文物.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
背景情况:
- 慢性神经记录对于理解自然主义决策至关重要.
- 现有的探头植入物在重量,耐用性和可调性方面存在限制,对于自由行为动物的长期研究而言.
研究的目的:
- 推出LARI-1.0和LARI-mini,用于小鼠的新型Neuropixels 2.0植入系统.
- 提供轻量级,可调节和可重复使用的解决方案,在长时间内提供稳定,高保真的神经记录.
主要方法:
- 开发了具有独立探头定位的LARI-1.0 (双探头) 和LARI-mini (单探头) 系统.
- 在自然化的食环境中测试了植入物,其行为要求和生理状态各不相同.
- 在180天内评估了机械稳定性,运动工件,探头漂移和神经记录质量.
主要成果:
- 拉里植入物具有轻量 (拉里-1.0的约2.3g,拉里-迷你的约1.5g) 并适合小鼠生理学.
- 证明了出色的机械稳定性,最小的运动工件和可比的探测器漂移.
- 保持高质量的单单元活动,具有稳定的波形和高信号噪声比,长达180天.
结论:
- 对于神经植入物,LARI-1.0和LARI-mini提供了耐用,可定制和轻量化的解决方案.
- 这些系统能够在老鼠复杂的自然行为过程中进行长期的,高保真度的神经记录.
- 促进了对决策和行为的神经机制的先进研究.
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