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SpikeSift: a computationally efficient and drift-resilient spike sorting algorithm

delete2025-07-21
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V Georgiadis
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Panagiotis C. Petrantonakis *
DOI:doi:10.1088/1741-2552/adee48delete
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摘要

摘要

En 中文
目标。锋电位排序是分析细胞外记录的基础步骤,能够实现单神经元活动的分离。然而,由于细胞外信号迹线混合了邻近细胞的重叠锋电位,并受到电极漂移等记录不稳定性的影响,该问题仍然具有挑战性。尽管已提出多种算法,但许多方法在准确性和计算效率之间难以平衡,限制了其对当今大规模数据集的实用性。方法。为应对这一问题,我们引入SpikeSift算法,该算法专门设计用于在标准CPU上运行时缓解漂移。SpikeSift(i)将长记录划分为较短的相对稳定段,(ii)通过每段内的迭代检测-减去方案同时执行锋电位检测和聚类,(iii)通过快速模板对齐阶段跨段保持神经元身份,该阶段无需连续轨迹估计。主要结果。在配对细胞内验证数据集和生物物理上合理的MEAre simulations(涵盖高噪声、多样漂移模式、超短记录和爆发活动)上的广泛验证表明,SpikeSift在单台桌面核心上完成排序的速度比现有最先进方法快一个数量级,同时其准确度与之相当或更高。意义。高保真度、抗漂移能力和适中的计算需求相结合,使SpikeSift易于广泛使用,同时为下游神经生理学分析保留了数据质量。
Keyword:
spike sorting
drift correction
computational efficiency
single-neuron activity
template alignment

期刊

Journal of Neural Engineering 封面图
Journal of Neural Engineering
IF:
3.8
论文数:
4.0K
被引数:
1.4W

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