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Related Concept Videos

Working Memory01:24

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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...
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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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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.
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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...
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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.
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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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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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Intentional remembering and intentional forgetting in working and long-term memory.

Klaus Oberauer1, Werner Greve1

  • 1Department of Psychology.

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The intention to remember boosts recall in working memory (WM) but not long-term memory (LTM). This suggests WM selectively holds goal-relevant information, unlike LTM's broader record.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Memory Research

Background:

  • Distinguishing the functions of working memory (WM) and episodic long-term memory (LTM) is crucial for understanding memory systems.
  • Previous research has not fully clarified how intentional memory processes differentially affect WM and LTM.

Purpose of the Study:

  • To investigate the impact of the intention to remember on recall performance in working memory versus episodic long-term memory.
  • To identify factors (delay, list length, interference) that mediate the effect of intentional remembering on different memory systems.

Main Methods:

  • Eight experiments were conducted using a semantic orienting task with word lists.
  • Participants were assigned to 'remember,' 'forget,' or incidental memory baseline conditions.
  • Memory recall was tested under varying conditions of delay, list length, and proactive interference.

Main Results:

  • Intentional remembering significantly enhanced recall in working memory tasks, particularly for short lists with immediate testing and proactive interference.
  • This effect was not observed for episodic long-term memory tasks.
  • Intentional remembering also improved memory for word list position, suggesting an episodic LTM effect.
  • The instruction to forget did not significantly impact memory recall compared to the baseline.

Conclusions:

  • Working memory selectively retains information relevant to current goals, enhanced by the intention to remember.
  • Episodic long-term memory functions as a nonselective record of experiences.
  • The findings challenge the efficacy of targeted forgetting instructions.