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Related Concept Videos

Visual System01:26

Visual System

695
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
695
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.
55.4K
Visual Agnosia01:12

Visual Agnosia

307
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
307
Parallel Processing01:20

Parallel Processing

230
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
230
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

936
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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Introduction to Special Issue: Visual Mental Imagery System: How We Image the World.

David F Marks1

  • 1Independent Researcher, 13200 Arles, Provence-Alpes-Côte d'Azur, France.

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|July 23, 2025
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Summary

This Special Issue explores visual mental imagery, offering new perspectives on how we conceptualize the world across time. It examines the cognitive processes underlying our mental representations of past, present, and future events.

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Area of Science:

  • Cognitive Neuroscience
  • Psychology of Perception
  • Mental Representation

Background:

  • Investigates the multifaceted role of visual mental imagery in shaping our perception and understanding of reality.
  • Explores how mental visualization influences our conceptualization of temporal experiences: past memories, present situations, and future projections.

Discussion:

  • Examines the cognitive mechanisms and neural underpinnings of visual mental imagery.
  • Discusses the impact of imagery on decision-making, problem-solving, and emotional regulation.
  • Considers the interplay between sensory input and internal visualization processes.

Key Insights:

  • Visual mental imagery is crucial for constructing and manipulating internal representations of the world.
  • The capacity for mental visualization significantly impacts our ability to recall past events and plan for the future.
  • Individual differences in imagery vividness correlate with distinct cognitive and emotional experiences.

Outlook:

  • Future research directions in understanding the plasticity and training of visual mental imagery.
  • Potential applications of visual imagery in therapeutic interventions and educational strategies.
  • Exploring the cross-cultural variations and developmental aspects of mental visualization.