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基于最小化尖峰时间预测误差的神经元相位响应曲线确定新方法

A novel method for determining the phase-response curves of neurons based on minimizing spike-time prediction error

Benjamin Torben-Nielsen, Marylka Uusisaari, Klaus M. Stiefel

摘要:

有规律的放电神经元可以看作是振荡器。相位响应曲线(PRC)描述了这些神经元将如何对小的兴奋性扰动做出反应。PRC的知识很重要,因为它与神经元的兴奋性类型及其在网络中同步的能力有关。在这项工作中,我们提出了一种新的方法来估计PRC从实验数据。我们假设连续的噪声信号可以离散成独立的扰动在均匀间隔的相位和预测下一个尖峰基于这些独立的扰动。在每个离散化相位处产生的预测下一个尖峰与实际下一个尖峰时间之间的差被用作用于优化PRC的误差信号。我们测试我们的方法对模型数据和实验获得的数据,发现新开发的方法是强大的和可靠的方法从实验数据中估计的PRCs。

英文摘要:

Regular firing neurons can be seen as oscillators. The phase-response curve (PRC) describes how such neurons will respond to small excitatory perturbations. Knowledge of the PRC is important as it is associated to the excitability type of neurons and their capability to synchronize in networks. In this work we present a novel method to estimate the PRC from experimental data. We assume that continuous noise signal can be discretized into independent perturbations at evenly spaced phases and predict the next spike based on these independent perturbations. The difference between the predicted next spike made at every discretized phase and the actual next spike time is used as the error signal used to optimize the PRC. We test our method on model data and experimentally obtained data and find that the newly developed method is robust and reliable method for the estimation of PRCs from experimental data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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