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Related Concept Videos

Forgetting01:21

Forgetting

297
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...
297
Interference and Decay01:16

Interference and Decay

362
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...
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Repressed Memory01:16

Repressed Memory

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Repressed memories are a psychological phenomenon where memories of traumatic events are unconsciously blocked from a person's awareness. This process occurs as a defense mechanism, protecting the mind from the emotional impact of distressing or painful experiences. For example, a person who has experienced childhood trauma may grow up with no conscious recollection of the event. In such cases, the memories are thought to be buried deep within the subconscious, inaccessible to the conscious...
406
Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

496
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...
496
False Memories01:18

False Memories

321
False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information...
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Retrieval01:12

Retrieval

354
Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning.
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
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Related Experiment Video

Updated: Dec 24, 2025

Using Practice Testing, Public Speaking, and Source Monitoring to Examine the Influences of Learning Strategies and Stress on Episodic Memory
07:59

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Testing can facilitate forgetting of tested items.

Toshihiro Wakebe1, Eiichiro Watamura2, Tomomi Sato3

  • 1Fukuoka Jo Gakuin University.

The Journal of General Psychology
|April 10, 2020
PubMed
Summary
This summary is machine-generated.

Taking a test can immediately impair memory for the tested item, leading to forgetting. This effect may explain why the benefits of testing on memory retention appear later.

Keywords:
Gainlossmemorytesting effect

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Area of Science:

  • Cognitive Psychology
  • Neuroscience of Memory

Background:

  • Testing enhances memory retention, particularly with delayed retesting.
  • Previous research indicates testing prevents later forgetting without affecting memory recovery.

Purpose of the Study:

  • To investigate the immediate effects of testing on the retrievability of a tested item.
  • To examine whether immediate testing influences forgetting or remembering of specific items.

Main Methods:

  • Two experiments involving 40 participants.
  • Participants recalled studied items, then underwent either a retest (test condition) or a non-episodic-memory task (distractor condition).
  • Immediate re-recall of studied items was assessed after the intervening task.

Main Results:

  • The test condition resulted in significantly more item losses (forgetting) compared to the distractor condition.
  • No significant differences were found between conditions in item gains (remembering) or recall clustering.
  • Immediate testing appears to facilitate forgetting of the tested item.

Conclusions:

  • Taking a test on an item can immediately facilitate forgetting of that same item over a short interval.
  • This immediate forgetting effect may contribute to the delayed emergence of the overall testing effect on memory retention.