Cited by 620Neuroscience and Neuropharmacology ResearchNeural dynamics and brain functionMemory and Neural Mechanisms

Synaptic plasticity in a cerebellum-like structure depends on temporal order

Bell, Curtis C., Han, Victor Z., Sugawara, Yoshiko, Grant, Kirsty·1997·Nature

Abstract

Cerebellum-like structures in fish appear to act as adaptive sensory processors, in which learned predictions about sensory input are generated and subtracted from actual sensory input, allowing unpredicted inputs to stand out. Pairing sensory input with centrally originating predictive signals, such as corollary discharge signals linked to motor commands, results in neural responses to the predictive signals alone that are 'negative images' of the previously paired sensory responses. Adding these 'negative images' to actual sensory inputs minimizes the neural response to predictable sensory features. At the cellular level, sensory input is relayed to the basal region of Purkinje-like cells, whereas predictive signals are relayed by parallel fibres to the apical dendrites of the same cells. The generation of negative images could be explained by plasticity at parallel fibre synapses. We show here that such plasticity exists in the electrosensory lobe of mormyrid electric fish and that it has the necessary properties for such a model: it is reversible, anti-hebbian (excitatory postsynaptic potentials (EPSPs) are depressed after pairing with a postsynaptic spike) and tightly dependent on the sequence of pre- and postsynaptic events, with depression occurring only if the postsynaptic spike follows EPSP onset within 60 ms.

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Crossref · 10.1038/387278a0

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19 of 19 references verified0 citation errors · 0 not checkable

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  • Increases in phasic activity of midbrain dopaminergic neurons result in increased dopamine release at target sites, as inferred to occur in schizophrenia.

    “An implication here, for which there is some evidence, 66 is that increases in the phasic activity of midbrain dopaminergic neurons will result in increased dopamine release at target sites, such as has been inferred to occur in patients with schizophrenia.67,68”

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Authors
Bell, C. C., Han, V. Z., Sugawara, Y., & Grant, K.
Affiliations
  • Legacy Good Samaritan Medical Center (US)
  • Centre National de la Recherche Scientifique (FR)
  • Teikyo University (JP)
Venue
Nature
Published
1997-05
Volume
387
Issue
6630
Pages
278-281
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2075075476
Cited by
620
References
21
Citations by year
2026: 8 · 2025: 9 · 2024: 13 · 2023: 31 · 2022: 16 · 2021: 13 · 2020: 13 · 2019: 16 · 2018: 25 · 2017: 14 · 2016: 23 · 2015: 19 · 2014: 21 · 2013: 29 · 2012: 21
FWCI
6.30
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
synaptic plasticity, anti-Hebbian plasticity, negative image, corollary discharge, predictive signals, parallel fiber synapses, excitatory postsynaptic potentials
MeSH terms
Animals, Cerebellum, Electric Fish, Evoked Potentials, Models, Neurological, Neuronal Plasticity, Synapses, Time Factors, In Vitro Techniques

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