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Related Concept Videos

Working Memory01:24

Working Memory

Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.
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...
Association Areas of the Cortex01:21

Association Areas of the Cortex

Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
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"...
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.
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.

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Related Experiment Video

Updated: May 12, 2026

Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking
05:58

Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking

Published on: August 29, 2018

A common discrete resource for visual working memory and visual search.

David E Anderson1, Edward K Vogel, Edward Awh

  • 1University of Oregon, Eugene, OR 97403, USA.

Psychological Science
|April 11, 2013
PubMed
Summary
This summary is machine-generated.

This study reveals a strong link between working memory (WM) capacity and visual search efficiency. Higher WM capacity enables faster and more accurate target identification among distractors, challenging previous null findings.

Keywords:
ERPN2pcevoked potentialsvisual attentionvisual memoryvisual searchworking memory

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Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Visual attention research

Background:

  • Visual search models often assume working memory (WM) is crucial for evaluating targets among distractors.
  • Previous research has failed to consistently demonstrate a correlation between WM capacity and visual search efficiency.
  • This lack of evidence challenges the idea of shared neural resources limiting both WM storage and visual selection.

Purpose of the Study:

  • To investigate the relationship between working memory (WM) capacity and visual search efficiency.
  • To identify conditions under which this relationship becomes apparent.
  • To explore the neural underpinnings of visual search and WM storage.

Main Methods:

  • Conducted multiple experiments demonstrating correlations between WM capacity and search efficiency.
  • Identified a key boundary condition influencing the observed relationship.
  • Utilized the N2pc (a neural measure of visual selection) to assess capacity limits.

Main Results:

  • Established robust correlations between working memory capacity and visual search efficiency.
  • Identified specific conditions that facilitate the observation of this link.
  • Neural data (N2pc) confirmed that visual search and WM storage share a common, limited resource.

Conclusions:

  • Working memory capacity significantly impacts visual search efficiency.
  • The relationship between WM and search is contingent on specific experimental conditions.
  • Both visual search and working memory are constrained by a shared, discrete neural resource.