对于主动推理中的顺序动态的生成模型
Thomas Parr1, Karl Friston1, Giovanni Pezzulo2
1Wellcome Centre for Human Neuroimaging, Queen Square Institute of Neurology, University College London, London, UK.
Cognitive neurodynamics
|December 23, 2024
概括
大脑使用主动推断和生成模型处理序列. 这种方法通过建模如何从连续的神经活动中出现离散序列来解释语言和运动控制等认知操作.
科学领域:
- 理论神经生物学 理论神经生物学
- 计算神经科学是一种计算神经科学.
- 认知科学是一种认知科学.
背景情况:
- 认知操作依赖于处理离散序列.
- 神经元动态是序列处理的基础.
- 积极推断为理解预测性大脑功能提供了一个框架.
研究的目的:
- 用积极推理来解释连续的大脑处理.
- 为了证明生成模型如何考虑序列处理.
- 将连续的神经元动态与离散的认知操作联系起来.
主要方法:
- 使用主动推理原则.
- 开发感知世界的生成模型.
- 将模型应用于运动控制,感知和语言.
主要成果:
- 包含序列的生成模型解释了序列性大脑处理.
- 积极推断解释了认知中的离散序列.
- 在手写,鸟歌识别和语言方面展示了应用.
结论:
- 积极推断为连续的大脑处理提供了一个统一的框架.
- 有序的生成模型是理解认知的关键.
- 这种方法弥合了连续的神经动态和离散的认知功能.
相关概念视频
Per-Unit Sequence Models
71
An ideal Y-Y transformer, grounded through neutral impedances, displays per-unit sequence networks akin to those of a single-phase ideal transformer when subjected to balanced positive- or negative-sequence currents. These currents do not produce neutral currents, and their associated voltage drops.
Zero-sequence currents, which are identical in magnitude and phase, generate a neutral current, resulting in voltage drops across the neutral impedance and the low-voltage winding. If the...
Zero-sequence currents, which are identical in magnitude and phase, generate a neutral current, resulting in voltage drops across the neutral impedance and the low-voltage winding. If the...
71
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
40
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
40
Observational Learning
131
Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
131
Associative Learning
288
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
288
Inductive Reasoning
60.0K
Inductive reasoning is a form of logical thinking that uses related observations to arrive at a general conclusion. It is uncertain and operates in degrees to which the conclusions are credible. As such, inductive arguments can be weak or strong, rather than valid or invalid, and conclusions can be used to formulate testable, falsifiable hypotheses.
Inductive reasoning is common in descriptive science. A life scientist makes observations and records them. This data can be qualitative or...
Inductive reasoning is common in descriptive science. A life scientist makes observations and records them. This data can be qualitative or...
60.0K
Multi-input and Multi-variable systems
96
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
In the absence...
96


