部分域适应用于稳定的神经解码在解的隐藏子空间中
IEEE transactions on bio-medical engineering
|June 16, 2025
概括
本研究引入了一种部分域适应 (PDA) 框架,通过对准与任务相关的神经信号来稳定脑计算机接口 (BCI) 解码. 在慢性神经康复应用中,PDA提高了长期解码可靠性.
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
- 机器学习 机器学习
背景情况:
- 大脑计算机接口 (BCI) 显示神经康复的前景.
- 非静止的神经信号导致解码不稳定,阻碍慢性BCI使用.
- 现有的域适应方法与与任务无关的神经元件作斗争.
研究的目的:
- 开发一种在BCI中稳定神经对齐的方法.
- 为了解决由非静止的神经信号引起的解码不稳定性的挑战.
- 提高BCI在慢性应用中的可靠性.
主要方法:
- 提出了一个新的部分域调整 (PDA) 框架.
- 使用因果动态系统构建了一个潜在空间,用于灵活解码.
- 使用基于VAE的表示学习和对抗对齐来解脱与任务相关的特征.
主要成果:
- 使用利亚普诺夫理论分析验证了神经表示的改善稳定性.
- 在各种神经数据集中显示了跨会话解码性能的显著提升.
- 在实验日中实现了稳定的神经表示,以获得可靠的长期解码.
结论:
- 通过PDA,可以实现稳定的神经表示,这对于可靠的长期BCI解码至关重要.
- 这种方法为现实世界BCI部署中的慢性可靠性提供了一个新的解决方案.
更多相关视频
03:14Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness
Published on: December 6, 2024
693
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
11.1K
相关概念视频
Linear Approximation in Time Domain
130
Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
130
Linear Approximation in Frequency Domain
139
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
139
Region of Convergence of Laplace Tarnsform
732
The Region of Convergence (ROC) is a fundamental concept in signal processing and system analysis, particularly associated with the Laplace transform. The ROC represents an area in the complex plane where the Laplace transform of a given signal converges, determining the transform's applicability and utility.
Consider a decaying exponential signal that begins at a specific time. When deriving its Laplace transform, the time-domain variable is replaced with a complex variable. This...
Consider a decaying exponential signal that begins at a specific time. When deriving its Laplace transform, the time-domain variable is replaced with a complex variable. This...
732
Neural Circuits
1.6K
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...
1.6K
Deconvolution
263
Deconvolution, also known as inverse filtering, is the process of extracting the impulse response from known input and output signals. This technique is vital in scenarios where the system's characteristics are unknown, and they must be inferred from the observable signals.
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
263
State Space Representation
301
The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...
Consider an RLC circuit, a...
301
