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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.
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.
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.
Perceptual Constancy01:12

Perceptual Constancy

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...
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"...
Gestalt Principles of Perception01:21

Gestalt Principles of Perception

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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Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Spatial transposition gradients in visual working memory.

Laura Rerko1, Klaus Oberauer, Hsuan-Yu Lin

  • 1a Department of Psychology-Cognitive Psychology , University of Zurich , Zurich , Switzerland.

Quarterly Journal of Experimental Psychology (2006)
|May 14, 2013
PubMed
Summary
This summary is machine-generated.

Spatial proximity affects visual working memory, similar to how time affects list memory. Items near the target location are more likely to be confused, challenging fixed-capacity models of visual working memory.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Memory recall is influenced by temporal distinctiveness, where neighboring items are more easily confused.
  • This phenomenon, known as the temporal transposition gradient, suggests limitations in accessing sequential information.
  • The study explores whether a similar effect exists in visual working memory based on spatial proximity.

Purpose of the Study:

  • To investigate the impact of spatial proximity on visual working memory performance.
  • To determine if spatial arrangement of items influences memory accuracy and recall.
  • To test the hypothesis of a spatial transposition gradient analogous to the temporal one.

Main Methods:

  • Two recognition experiments using visual stimuli presented at varying spatial distances.
  • A retro-cue indicated the target item's location for a subsequent memory test.
  • Two probed-recall experiments (simultaneous and sequential presentation) to assess recall accuracy based on spatial location.

Main Results:

  • Recognition probes matching spatially close neighbors of the target item resulted in more false alarms.
  • Probes matching distant or non-neighboring items showed fewer false alarms.
  • In recall tasks, items closer to the cued location were more frequently selected than distant items.

Conclusions:

  • A spatial transposition gradient exists in visual working memory, mirroring temporal effects in list recall.
  • These findings challenge traditional fixed-capacity models of visual working memory.
  • Spatial relationships significantly influence the precision and accessibility of visual working memory.