解决不可识别性缓解神经调节和功能合模型中的偏差
Pratik Sachdeva1,2, Ji Hyun Bak3,4, Jesse Livezey4
1Physics Department, UC Berkeley.
bioRxiv : the preprint server for biology
|July 28, 2023
概括
神经活动的统计模型往往是有偏见的,高估了神经元合,低估了外部影响. 在估计之前精确的参数选择可以解决不可识别性并减轻大脑数据分析中的这些偏差.
科学领域:
- 计算神经科学是一种神经科学.
- 统计建模 统计建模
- 神经生理学 神经生理学
背景情况:
- 神经元活动受到记录和未测量的神经元的影响,因此需要考虑这两种因素的模型.
- 统计模型对于理解神经元影响至关重要,但它们的参数估计可能有偏见.
- 神经数据模型中偏差的来源和评估是不太了解的.
研究的目的:
- 识别和理解神经数据常见模型中的统计偏差的原因.
- 开发和展示推理程序,以减轻神经数据分析中的偏差.
- 评估这些偏见对不同神经生理学数据集的科学解释的影响.
主要方法:
- 广泛的数值模拟和分析计算来评估推理程序和模型.
- 分析各种神经生理学数据集,以评估参数估计偏差.
- 研究了模型不可识别性在统计偏差中的作用.
主要成果:
- 常见的推断程序和神经数据的统计模型通常具有偏见.
- 神经元与神经元之间的合贡献往往被高估,而对外部变量的调整被低估.
- 发现模型不可识别性导致参数估计中的偏差,而不是差异.
结论:
- 在估计之前准确的参数选择对于解决模型不可识别性和减轻偏差至关重要.
- 该研究提供了实际的推理程序,以提高神经数据分析的准确性.
- 了解和纠正统计偏差对于可靠的科学解释大脑功能至关重要.
更多相关视频
11:14A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants
Published on: October 4, 2015
11.0K
05:59Author Spotlight: Unlocking New Insights in fNIRS Studies - A Novel Framework for Inter-Brain Synchrony Analysis
Published on: October 6, 2023
2.6K
相关概念视频
01:37Neural Regulation
39.5K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.5K
01:25Neural Circuits
1.3K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.3K