PreprintCited by 125Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchNeurobiology and Insect Physiology Research

Interaction between Amount and Pattern of Training in the Induction of Intermediate- and Long-Term Memory for Sensitization in Aplysia

Open access
Sutton, Michael A., Ide, Jasmine, Masters, Sarah E., Carew, Thomas J.·2002·Learning & Memory

Abstract

In Aplysia, three distinct phases of memory for sensitization can be dissociated based on their temporal and molecular features. A single training trial induces short-term memory (STM, lasting <30 min), whereas five trials delivered at 15-min intervals induces both intermediate-term memory (ITM, lasting >90 min) and long-term memory (LTM, lasting >24 h). Here, we explore the interaction of amount and pattern of training in establishing ITM and LTM by examining memory for sensitization after different numbers of trials (each trial = one tail shock) and different patterns of training (massed vs. spaced). Under spaced training patterns, two trials produced STM exclusively, whereas four or five trials each produced both ITM and LTM. Three spaced trials failed to induce LTM but did produce an early decaying form of ITM (E-ITM) that was significantly shorter and weaker in magnitude than the late-decaying ITM (L-ITM) observed after four to five trials. In addition, E-ITM was induced after three trials with both massed and spaced patterns of training. However, L-ITM and LTM after four to five trials require spaced training: Four or five massed trials failed to induce LTM and produced only E-ITM. Collectively, our results indicate that in addition to three identified phases of memory for sensitization—STM, ITM, and LTM—a unique temporal profile of memory, E-ITM, is revealed by varying either the amount or pattern of training.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1101/lm.44802

Cites

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The non-uniform distribution of interstimulus intervals in the Enhanced protocol was in marked contrast to the fixed intervals used in previous protocols for behavioral training in Aplysia.

    “Interestingly, the non-uniform distribution of ISIs in the Enhanced protocol was in marked contrast to the fixed intervals used in previous protocols for behavioral training in Aplysia6,7,10.”

    From Computational design of enhanced learning protocols (2012) · cites this paper as [6]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

The citation lists haven’t been fetched yet

References 61 · Cited by 125

Authors
Sutton, M. A., Ide, J., Masters, S. E., & Carew, T. J.
Affiliations
University of California, Irvine (US)
Venue
Learning & Memory
Published
2002-01-01
Volume
9
Issue
1
Pages
29-40
ISSN
  • 1072-0502 (ISSN-L)
  • 1549-5485
OpenAlex
W2096388975
Cited by
125
References
61
Citations by year
2025: 3 · 2024: 9 · 2023: 3 · 2022: 4 · 2021: 2 · 2020: 4 · 2019: 3 · 2017: 7 · 2016: 7 · 2015: 5 · 2014: 9 · 2013: 9 · 2012: 6
Type
posted content
Language
en
Open access
Locations
  • Learning & Memory (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Natural Sciences and Engineering Research Council of Canada
  • National Institute of Mental Health (R01 MH-141083)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
Keywords
Aplysia, sensitization, intermediate-term memory, long-term memory, short-term memory, spaced training, massed training, memory decay, tail shock, memory phases
MeSH terms
Animals, Aplysia, Learning, Memory

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review