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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.
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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"...
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Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of information more...
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Related Experiment Video

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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

Dynamic visual noise interferes with storage in visual working memory.

Graham M Dean1, Stephen A Dewhurst, Annalise Whittaker

  • 1School of Social Sciences & Law, University of Teesside, Cleveland, UK. g.m.dean@tees.ac.uk

Experimental Psychology
|August 8, 2008
PubMed
Summary
This summary is machine-generated.

Dynamic visual noise (DVN) interferes with visual working memory, challenging prior assumptions. This suggests visual working memory acts as a gateway for information processing.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Prior research indicated dynamic visual noise (DVN) does not impede memory for random matrices.
  • This led to theories separating visual working memory from imagery and long-term storage.
  • Questions arose regarding the nature of visual working memory representations.

Purpose of the Study:

  • To investigate the interference effects of DVN on visual working memory.
  • To compare DVN's impact on memory for matrices versus colored textures.
  • To evaluate existing models of visual working memory.

Main Methods:

  • Experimental comparison of DVN interference.
  • Memory tasks involving random matrices and colored textures.
  • Analysis of interference at different representational levels.

Main Results:

  • DVN demonstrably interferes with visual working memory.
  • Interference suggests processing at a detailed visual level.
  • This level is not readily supported by long-term memory or recoding.

Conclusions:

  • Results support a gateway model for visuospatial working memory.
  • DVN's interference challenges previous theoretical frameworks.
  • Further research is needed on modeling visual working memory levels.