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相关概念视频

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

610
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.
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Factors Affecting Perception01:25

Factors Affecting Perception

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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...
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相关实验视频

Updated: Jun 14, 2025

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
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Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

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简单的动作调节了在后期处理阶段的上下文依赖的视觉尺寸感知.

Haoyang Yu1, Irene Sperandio2, Lihong Chen1

  • 1Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian 116029, China; Key Laboratory of Brain and Cognitive Neuroscience, Liaoning Province, Dalian 116029, China.

Cognition
|September 3, 2024
PubMed
概括
此摘要是机器生成的。

执行一个动作,比如按下按,可以改善视觉感知,并减少埃宾豪斯幻觉. 这种行动效应取决于运动皮质,这表明行动指导知觉.

关键词:
埃宾豪斯幻觉是一种幻觉.眼内转移是眼睛之间的转移.感知大小的感知大小.简单的行动简单的行动.rTMS的使用情况.

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Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects
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科学领域:

  • 认知神经科学 认知神经科学
  • 视觉感知 视觉感知 视觉感知
  • 发动机控制器的控制器

背景情况:

  • 已知特定行动对知觉的影响,但它们的普遍性和神经基础需要进一步研究.
  • 埃宾豪斯错觉为研究行动如何影响视觉处理提供了一个范式.
  • 了解初级运动皮层 (M1) 的作用对于阐明行动与感知之间的联系至关重要.

研究的目的:

  • 要确定动作效应是否通用到涉及埃宾豪斯错觉的尺寸匹配任务.
  • 通过使用重复性横磁刺激 (rTMS) 来研究作用效应的基础的神经机制.
  • 探索右主运动皮层 (M1) 在调解行动引导感知中的作用.

主要方法:

  • 参与者执行了一个与埃宾豪斯幻觉刺激的尺寸匹配任务.
  • 通过将按键的条件与被动观看进行比较来评估动作效应.
  • 在右主运动皮层 (M1) 上应用重复性TMS来破坏其活动.
  • 刺激通过双眼或二光学呈现,以测试视觉处理阶段.

主要成果:

  • 与被动观看相比,先前按键显著降低了埃宾豪斯幻觉的幅度.
  • 即使幻觉的组件被二光学呈现时,动作效应仍然存在.
  • 通过rTMS对右主运动皮层 (M1) 的干扰取消了动作效应.
  • 这些发现表明,行动影响后期视觉处理.

结论:

  • 行动在引导视觉感知方面发挥着重要作用,超越了简单的视觉搜索任务.
  • 埃宾豪斯幻觉的作用效应似乎依赖于来自运动皮层的反,特别是M1.1.
  • 这些结果突出了运动指令和视觉处理在塑造人类行为的复杂相互作用.