Cited by 334Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchNeurobiology and Insect Physiology Research

Monosynaptic connections made by the sensory neurons of the gill- and siphon-withdrawal reflex in Aplysia participate in the storage of long-term memory for sensitization

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Frost, William N., Castellucci, Vincent F., Hawkins, Robert D., Kandel, Eric R.·1985·Proceedings of the National Academy of Sciences

Abstract

We have found that in the gill- and siphon- withdrawal reflex of Aplysia , the memory for short-term sensitization grades smoothly into long-term memory with increased amounts of sensitization training. One cellular locus for the storage of the memory underlying short-term sensitization is the set of monosynaptic connections between the siphon sensory cells and the gill and siphon motor neurons. We have now also found that these same monosynaptic connections participate in the storage of the memory underlying long-term Sensitization. We examined the amplitudes of the direct synaptic connections produced by siphon sensory neurons on the gill motor neuron L7 in nervous systems removed from control and from long-term sensitized animals 1 day after the end of long-term sensitization training. The connections were significantly larger in long-term sensitized animals than in control animals. The finding that long-term memory occurs at the same synaptic locus as the short-term memory should facilitate study of the cellular and molecular mechanisms involved in the conversion of short-term to long-term memory.

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Crossref · 10.1073/pnas.82.23.8266

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  1. Carew T. J., Pinsker H. M., Kandel E. R. Long-term habituation of a defensive withdrawal reflex in aplysia. Science. 1972 Jan 28;175(4020):451–454. doi: 10.1126/science.175.4020.451. [DOI] [PubMed] [Google Scholar] · DOI · Paper page

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Authors
Frost, W. N., Castellucci, V. F., Hawkins, R. D., & Kandel, E. R.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Proceedings of the National Academy of Sciences
Published
1985-12
Volume
82
Issue
23
Pages
8266-8269
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2008588148
Cited by
334
References
15
Citations by year
2025: 2 · 2024: 4 · 2023: 2 · 2022: 4 · 2021: 3 · 2020: 4 · 2019: 11 · 2018: 6 · 2017: 8 · 2016: 9 · 2015: 7 · 2014: 12 · 2013: 8 · 2012: 8
FWCI
6.86
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
McKnight Foundation
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, gill-withdrawal reflex, siphon withdrawal reflex, long-term memory, short-term memory, sensitization, memory storage, monosynaptic connections, synaptic plasticity

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