相关实验视频
Updated: Jul 11, 2025

04:43
Visualizing Visual Adaptation
Published on: April 24, 2017
9.0K
校正反指导人类的感知决策,通过告知世界状态,而不是奖励其选择
Hyang-Jung Lee1, Heeseung Lee1, Chae Young Lim2
1Department of Brain and Cognitive Sciences, Seoul National University, Seoul, South Korea.
PLoS biology
|November 8, 2023
概括
人类在感知决策中使用校正反作为环境的证据,而不是作为他们选择的奖励. 这种"反作为证据"的方法比"反作为奖励"的学习更好地解释了战略调整.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 决策科学 决策科学 决策科学
背景情况:
- 纠正反对于完善感知决策策略至关重要.
- 了解反如何与先前的刺激和选择相互作用仍然具有挑战性.
- 强化学习,将反视为奖励,是感知任务的常见模式.
研究的目的:
- 调查人类是否将纠正反解释为奖励,还是作为外部世界的证据.
- 为了比较"作为奖励的反"与"作为证据的反"模型的预测能力.
- 阐明反影响感知决策策略的机制.
主要方法:
- 开发了一个共享的学习平台来实施和测试两个竞争的假设:"反作为奖励"和"反作为证据".
- 分析了每个假设如何解释感知决策中的战略调整.
- 将过去的刺激和选择的影响纳入模型.
主要成果:
- "作为证据的反"模型在解释观察到的决策策略方面显著超过了"作为奖励的反"模型.
- 当被视为关于环境的信息时,纠正反更有效地调整策略.
- 该模型考虑了先前刺激和选择对战略适应的影响.
结论:
- 人类可能会将感知任务中的纠正反解释为关于世界状况的证据.
- 这与强化学习模型形成鲜明对比,这些模型仅将反视为取决于选择的奖励.
- 研究结果表明,人们对反如何塑造学习和适应感知决策的理解有所转变.
相关概念视频
Factors Affecting Perception
1.6K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
An illustrative example of a perceptual set is the scenario where an airline pilot told...
1.6K
Perception
471
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
471
Depth Perception and Spatial Vision
678
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.
678
Effects of feedback
573
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
573
Perceptual Constancy
411
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
411
Control Systems
1.2K
Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
At the heart...
1.2K

