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Related Concept Videos

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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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

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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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Perceptual Constancy01:12

Perceptual Constancy

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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...
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Gestalt Principles of Perception01:21

Gestalt Principles of Perception

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Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
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Perception01:28

Perception

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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.
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Vision01:24

Vision

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Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
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Related Experiment Videos

Action's influence on spatial perception: resolution and a mystery.

Jessica K Witt1

  • 1Department of Psychology, Colorado State University, United States.

Current Opinion in Psychology
|October 13, 2019
PubMed
Summary

Your ability to act changes how you perceive space. Environmental perception, including distance and size, is not purely objective but influenced by physical capabilities and action potential.

Area of Science:

  • Cognitive Psychology
  • Perception Science
  • Human-Environment Interaction

Background:

  • Spatial perception is often assumed to be objective and geometrically precise.
  • However, evidence suggests that an individual's capacity for action influences spatial perception.

Purpose of the Study:

  • To investigate the controversial claim that action potential influences spatial perception.
  • To explore alternative explanations for observed effects and determine if action truly impacts spatial perception.

Main Methods:

  • Review of experimental findings on action's influence on spatial perception.
  • Analysis of studies designed to rule out alternative explanations for action's effects.

Main Results:

Related Experiment Videos

  • In some cases, alternative explanations failed to account for the observed effects of action.
  • This supports the conclusion that action potential can genuinely alter spatial perception.

    • Conclusions:

    • The potential for action significantly influences spatial perception, challenging purely geometric models.
    • The precise mechanisms by which action exerts this influence remain an open area for research.