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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,...
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Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
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Chunking and Rehearsal in Sensory Memory01:22

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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...
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Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
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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...
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Related Experiment Video

Updated: Jul 15, 2025

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

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Delayed memory for complex visual stimuli does not benefit from distraction during encoding.

Lea M Bartsch1, Philipp Musfeld2

  • 1Department of Psychology, Cognitive Psychology Unit, University of Zurich, Zurich, Switzerland. l.bartsch@psychologie.uzh.ch.

Memory & Cognition
|September 29, 2023
PubMed
Summary
This summary is machine-generated.

Distractions during encoding do not improve delayed memory performance for complex visual stimuli, challenging the covert retrieval model. Memory transfer to long-term storage appears unaffected by these proposed retrieval processes.

Keywords:
Covert retrievalLong-term memoryMcCabe effectWorking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Research

Background:

  • The covert retrieval model suggests distractions enhance delayed memory by interrupting encoding in working memory (WM).
  • Previous studies indicated delayed memory improves with distraction, a phenomenon termed the McCabe effect.
  • Replication of the McCabe effect, particularly for complex visual stimuli, has been inconsistent.

Purpose of the Study:

  • To extensively replicate a prior study demonstrating the McCabe effect for complex visual stimuli.
  • To investigate boundary conditions influencing the covert retrieval model's predictions.
  • To determine if distraction during encoding impacts delayed memory for visual stimuli.

Main Methods:

  • Four experiments were conducted to test the covert retrieval model.
  • Investigated five boundary conditions: stimulus type, distractor type, task difficulty expectation, WM load, and LTM test expectation.
  • Replicated a previous study using complex visual stimuli (faces, doors).

Main Results:

  • Failed to replicate the McCabe effect across four experiments.
  • Delayed memory for faces and other complex visual stimuli did not benefit from distraction-induced covert retrieval.
  • No evidence was found supporting the influence of covert retrieval processes on WM to LTM transfer.

Conclusions:

  • The covert retrieval model's prediction that distraction enhances delayed memory was not supported.
  • Information transfer from working memory to long-term memory is not influenced by covert retrieval processes.
  • A fixed proportion of information is laid down as a permanent trace, irrespective of encoding distractions.