普里奥斯和亲感预测的预测
Thomas Parr1, Maxwell Jd Ramstead2, Karl Friston2
1Nuffield Department of Clinical Neurosciences, University of Oxford, UK.
Current opinion in behavioral sciences
|December 26, 2025
概括
运动指令是自身感知预测,通过纠正偏差的反射弧使运动执行成为可能. 这种主动推断方法整合了对运动控制的先前信念和信心.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 计算神经科学是一种神经科学.
背景情况:
- 均衡点假设为理解运动控制提供了一个框架.
- 现有的模型往往侧重于效应复制,而不是预测处理.
研究的目的:
- 基于自身感知预测,提出一种基于运动控制的积极推断方法.
- 探索大脑是如何产生这些预测和执行运动命令的.
主要方法:
- 对平衡点假设和主动推理原理的审查.
- 对反射作为反循环的控制理论观点的分析.
- 对神经生物学基质进行预测计算的检查.
主要成果:
- 运动指令被概念化为自感预测.
- 反射功能是封闭的反循环,由预测的感官后果来调节.
- 产生预测的关键要素包括先前的信念,时间结构和预测信心.
结论:
- 皮质脊髓,小脑和超金字塔系统都参与产生和利用自觉预测来进行运动控制.
- 该框架通过预测处理提供了对汽车规划和执行的统一视图.
相关概念视频
Major Somatic Sensory Pathways
2.3K
Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
2.3K
Equilibrium and Balance
6.1K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
6.1K
Indirect Motor Pathways
3.0K
The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
3.0K
Prediction Intervals
3.1K
The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y.
3.1K
Depth Perception and Spatial Vision
1.7K
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
1.7K
Gyroscope: Precession
5.3K
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
5.3K


