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Forgetting01:21

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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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Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
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Related Experiment Video

Updated: Mar 21, 2026

Asymbiotic Germination and Leaf Explant-Based Regeneration of the Endangered Medicinal Orchid Hemipilia cucullata from Mature Seeds
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Asymbiotic Germination and Leaf Explant-Based Regeneration of the Endangered Medicinal Orchid Hemipilia cucullata from Mature Seeds

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Forget me not.

Richard Gm Morris1

  • 1Centre for Cognitive and Neural Systems, University of Edinburgh, Edinburgh, United Kingdom.

Elife
|May 18, 2016
PubMed
Summary

Protein kinase M zeta (PKM zeta) may play a crucial role in establishing and maintaining long-term memory. This enzyme

Area of Science:

  • Neuroscience
  • Molecular Biology

Background:

  • The role of Protein kinase M zeta (PKM zeta) in memory consolidation has been debated.
  • Previous studies suggested its involvement, but conflicting evidence emerged.

Purpose of the Study:

  • To investigate the definitive role of PKM zeta in the persistence of long-term memory.
  • To clarify the molecular mechanisms underlying memory maintenance.

Main Methods:

  • Utilizing genetic manipulation in animal models to alter PKM zeta levels.
  • Employing behavioral assays to assess memory recall over extended periods.
  • Biochemical analyses to examine synaptic plasticity associated with PKM zeta.

Main Results:

  • Sustained PKM zeta activity was found to be essential for the long-term retention of specific memories.
Keywords:
LTPPKCiota/lambdaPKM-zetaPKMzetaatypical PKCmemorymouseneuroscience

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  • Inhibition of PKM zeta led to the decay of established memories.
  • Evidence supports PKM zeta's function in stabilizing synaptic potentiation.

    • Conclusions:

    • PKM zeta is a key molecular player in the long-term memory persistence.
    • Targeting PKM zeta could offer novel therapeutic strategies for memory disorders.