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Related Concept Videos

Interference and Decay01:16

Interference and Decay

Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Forgetting01:21

Forgetting

Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
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.
Higher Mental Functions of Brain: Learning and Memory01:26

Higher Mental Functions of Brain: Learning and Memory

Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or playing an...
Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

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...
Role of Cerebellum and Prefrontal Cortex in Memory01:14

Role of Cerebellum and Prefrontal Cortex in Memory

The cerebellum, while traditionally associated with motor control, also plays a crucial role in memory, particularly in procedural memory, which involves learning motor tasks that become automatic through repetition. For example, studies have shown that when the cerebellum is damaged, individuals or animals lose the ability to learn conditioned motor responses, such as the conditioned eye-blink response in classical conditioning experiments with rabbits. This study demonstrates the cerebellum's...

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Related Experiment Video

Updated: Jun 28, 2026

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

Time-related decay or interference-based forgetting in working memory?

Sophie Portrat1, Pierre Barrouillet, Valérie Camos

  • 1Department of Psychology, Université de Bourgogne, Dijon, France. Sophie.Portrat@u-bourgogne.fr

Journal of Experimental Psychology. Learning, Memory, and Cognition
|November 5, 2008
PubMed
Summary
This summary is machine-generated.

Working memory recall declines with increased processing time due to time-related decay, not just reduced refresh time. This study confirms memory traces degrade over time when attention is engaged.

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Related Experiment Videos

Last Updated: Jun 28, 2026

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Published on: July 16, 2015

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Working memory models propose time-based resource sharing, where memory traces decay with concurrent activity.
  • Previous research suggested processing time impacts recall, but alternative explanations like reduced attention refresh time were proposed.

Purpose of the Study:

  • To investigate whether time-related decay or reduced attention refresh time is the primary cause of forgetting in working memory.
  • To test the hypothesis that memory trace decay, independent of attention availability, affects recall performance.

Main Methods:

  • Utilized complex continuous span tasks with controlled temporal parameters.
  • Manipulated processing time while keeping the time available for memory trace refreshing constant.

Main Results:

  • Increased processing time led to significantly poorer recall performance, even when attention refresh time was controlled.
  • Findings support the existence of time-related decay affecting memory traces.

Conclusions:

  • Time-related decay is a significant factor in forgetting within working memory.
  • The results challenge interference-based accounts and support models where memory traces degrade over time.