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Forgetting01:21

Forgetting

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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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Related Experiment Video

Updated: May 1, 2026

Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains
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Running out of brain.

J Ganesalingam1, I H Jenkins, J Vaughan

  • 1Department of Neurology Imperial College Hospital, London, UK - jeban@doctors.org.uk.

The Journal of Sports Medicine and Physical Fitness
|April 18, 2014
PubMed
Summary

Young men experienced stroke after marathon running and were diagnosed with a patent foramen ovale (PFO). Individuals with PFO may face increased stroke risk during endurance running.

Area of Science:

  • Neurology
  • Cardiology
  • Sports Medicine

Background:

  • Stroke is a leading cause of death in the UK.
  • Endurance running events like marathons are increasingly popular.
  • Cerebrovascular events in athletes require further investigation.

Observation:

  • Two young men suffered strokes post-marathon.
  • Both individuals were diagnosed with a patent foramen ovale (PFO).

Findings:

  • A patent foramen ovale (PFO) may be an etiological factor in stroke among endurance runners.
  • This risk appears independent of other cerebrovascular risk factors.

Implications:

  • Individuals with PFO should be aware of potential stroke risks associated with long-distance running.

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  • Further research is warranted to confirm the link between PFO, endurance running, and stroke risk.