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Related Concept Videos

Sensory Memory01:14

Sensory Memory

Sensory memory captures information from the environment in its original form for a very brief duration, just long enough to be exposed to visual, auditory, and other senses. This type of memory is detailed and rich but quickly lost unless certain strategies are employed to transfer it into short-term or long-term memory. Sensory information is continuously bombarding the human brain, yet only a small fraction is absorbed, as most of it does not significantly impact daily life. For instance,...
Vision01:24

Vision

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.
Color Vision01:24

Color Vision

Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
Visual Agnosia01:12

Visual Agnosia

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 end"...
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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.
Visual System01:26

Visual System

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...

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Related Experiment Video

Updated: Jul 3, 2026

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
07:12

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

Published on: April 11, 2025

Sensory memory for ambiguous vision.

Joel Pearson1, Jan Brascamp

  • 1Department of Psychology, Vanderbilt University, 111 21st Ave. S. Nashville, TN 37203, USA. joel.pearson@vanderbilt.edu

Trends in Cognitive Sciences
|August 8, 2008
PubMed
Summary
This summary is machine-generated.

Visual perception can be stabilized by a short-term memory trace that holds visual information across brief blank intervals. This memory trace builds over time and shares properties with perceptual priming.

More Related Videos

Visualizing Visual Adaptation
04:43

Visualizing Visual Adaptation

Published on: April 24, 2017

Related Experiment Videos

Last Updated: Jul 3, 2026

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss
07:12

A Gaze-Contingent Display Framework for Perceptual Learning Research with Simulated Central Vision Loss

Published on: April 11, 2025

Visualizing Visual Adaptation
04:43

Visualizing Visual Adaptation

Published on: April 24, 2017

Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Visual perception

Background:

  • The relationship between visual perception and memory is increasingly understood.
  • Ambiguous images typically cause unpredictable perceptual shifts.

Purpose of the Study:

  • To investigate the role of memory in stabilizing visual perception.
  • To characterize the properties of the memory trace involved in perceptual stability.

Main Methods:

  • Presenting ambiguous images briefly with intervening blank periods.
  • Observing perceptual stability and changes over time.
  • Comparing memory trace characteristics with perceptual priming.

Main Results:

  • Perception freezes on one interpretation when ambiguous images are presented with blank intervals.
  • A memory trace, coding low-level stimulus features, forms across blank periods.
  • This memory trace accumulates over multiple presentations with a flexible time course.
  • The memory shares characteristics with priming effects.

Conclusions:

  • A short-term visual memory trace stabilizes perception of ambiguous stimuli.
  • This memory system exhibits properties of accumulation and flexibility.
  • Computational models can explain these empirical observations.