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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 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"...
Interference and Decay01:16

Interference and Decay

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Eyewitness Memory01:22

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Color Vision01:24

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Related Experiment Video

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A Real-world What-Where-When Memory Test
09:13

A Real-world What-Where-When Memory Test

Published on: May 16, 2017

Visual working memory declines when more features must be remembered for each object.

Klaus Oberauer1, Simon Eichenberger

  • 1Department of Psychology - Cognitive Psychology, University of Zurich, Binzmühlestrasse 14/22, 8050, Zürich, Switzerland, k.oberauer@psychologie.uzh.ch.

Memory & Cognition
|May 30, 2013
PubMed
Summary
This summary is machine-generated.

Investigating visual working memory, this study found that more features per object impair change detection, contrary to prior research. Visual working memory capacity is limited by object number, features per object, and feature precision.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Perception

Background:

  • Visual working memory (VWM) capacity is crucial for complex cognition.
  • Previous models suggested VWM capacity is object-based, irrespective of object complexity.
  • Contradictory findings necessitate re-evaluation of VWM capacity limitations.

Purpose of the Study:

  • To investigate the impact of the number of features per object on VWM capacity.
  • To challenge the object-based view of VWM capacity.
  • To determine the dimensional limits of VWM.

Main Methods:

  • Employed a single-item probe change detection paradigm.
  • Manipulated the number of features for objects presented in VWM.
  • Measured change detection accuracy across experimental conditions.

Main Results:

  • Increasing features per object significantly impaired change detection performance.
  • This impairment was independent of encoding duration, change magnitude, or feature levels.
  • Findings contradict the notion that VWM capacity is solely determined by the number of objects.

Conclusions:

  • VWM capacity is constrained by multiple factors: number of objects, features per object, and feature precision.
  • The complexity of individual items significantly impacts VWM storage.
  • A multidimensional model is required to accurately describe VWM capacity.