对调整到自我诱导的感觉进行了强大的概括
Rozana Ovsepian1, David Souto2, Alexander C Schütz1,3
1Sensorimotor Learning Unit, University of Marburg, 35032 Hessen, Germany.
iScience
|June 9, 2025
概括
在平滑的追踪眼动过程中感知学习在不同的速度上泛化. 这表明基于重现信号调整视觉稳定的独特机制.
科学领域:
- 神经科学是一个神经科学.
- 感知 感知 感知 感知
- 发动机控制器的控制器
背景情况:
- 感知和感官运动学习通常对训练的刺激和运动参数表现出特异性.
- 重新校准感觉和运动图像,如眼动,也表明了这种特异性.
- 顺的追踪眼动需要对静止环境的视网膜图像运动进行补偿 (回应),以保持感知稳定性.
研究的目的:
- 为了调查在平滑的追踪眼球运动中静止的感知再校准是否泛化到未经训练的眼球运动速度.
- 阐明在平稳的追逐过程中重现信号更新的基本机制.
主要方法:
- 参与者进行了光滑的追踪眼动.
- 引入了系统的视觉错误,以诱导静止的感知重新校准.
- 评估了不同追逐速度的重新校准的普遍性.
主要成果:
- 在平滑的追逐过程中,静止的感知重新校准,将眼睛运动概括为未经训练的眼睛运动速度.
- 概括模式揭示了两个不同的机制:减少预测的重现信号的乘法增益和增加信号的恒定转移.
- 观察到的增强机制与平稳追逐的增强控制模型相一致.
结论:
- 在平稳的追逐过程中静止度重新校准并不严格地针对训练的运动速度.
- 不同的神经机制可能是不同追逐速度的重现预测调整的基础.
- 这些发现有助于了解眼运动系统的适应能力和感知稳定性.
相关概念视频
Sensation
533
Sensory receptors are specialized neurons that respond to specific types of external stimuli, initiating the process known as sensation. This occurs when sensory input, such as light entering the eye, is detected by these receptors, causing chemical changes in the cells of the retina. These cells then convert the sensory stimulus into action potentials that are transmitted to the central nervous system, a process termed transduction.
Absolute thresholds can quantify the sensitivity of sensory...
Absolute thresholds can quantify the sensitivity of sensory...
533
Muscle Stimulation Frequency
2.0K
The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
2.0K
Perceiving Loudness, Pitch, and Location
198
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
198
Optimal Arousal Theory
147
The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
Inverted U-Shaped Performance Curve
The...
Inverted U-Shaped Performance Curve
The...
147
Regression Toward the Mean
6.3K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.3K
Fundamental Attribution Error
12.8K
According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
12.8K


