论文标题
整合统计和机器学习方法以识别神经种群的接受场结构
Integrating Statistical and Machine Learning Approaches to Identify Receptive Field Structure in Neural Populations
论文作者
论文摘要
神经元可以同时为多个变量编码,而神经科学家通常对基于其接受场特性进行分类的神经元感兴趣。统计模型提供了有力的工具来确定影响神经尖峰活动并对单个神经元进行分类的因素。但是,随着神经记录技术已经发展为从大量人群中产生同时峰值数据,经典统计方法通常缺乏处理此类数据所需的计算效率。机器学习(ML)方法以有效的大规模数据分析而闻名;但是,他们通常需要具有平衡数据的大规模训练集以及准确的标签以适合。另外,对于ML而言,模型评估和解释通常比经典统计方法更具挑战性。为了应对这些挑战,我们开发了一个集成的框架,结合了统计建模和机器学习方法,以识别来自大量人群的神经元的编码属性。为了证明这一框架,我们将这些方法应用于从大鼠海马记录的神经元中的数据中,以表征该区域空间接受场的分布。
Neurons can code for multiple variables simultaneously and neuroscientists are often interested in classifying neurons based on their receptive field properties. Statistical models provide powerful tools for determining the factors influencing neural spiking activity and classifying individual neurons. However, as neural recording technologies have advanced to produce simultaneous spiking data from massive populations, classical statistical methods often lack the computational efficiency required to handle such data. Machine learning (ML) approaches are known for enabling efficient large scale data analyses; however, they typically require massive training sets with balanced data, along with accurate labels to fit well. Additionally, model assessment and interpretation are often more challenging for ML than for classical statistical methods. To address these challenges, we develop an integrated framework, combining statistical modeling and machine learning approaches to identify the coding properties of neurons from large populations. In order to demonstrate this framework, we apply these methods to data from a population of neurons recorded from rat hippocampus to characterize the distribution of spatial receptive fields in this region.