Cited by 737Neuroscience and Neuropharmacology ResearchNeural dynamics and brain functionIon channel regulation and function

Dendritic integration of excitatory synaptic input

Magee, Jeffrey C.·2000·Nature reviews. Neuroscience

Abstract

A fundamental function of nerve cells is the transformation of incoming synaptic information into specific patterns of action potential output. An important component of this transformation is synaptic integration--the combination of voltage deflections produced by a myriad of synaptic inputs into a singular change in membrane potential. There are three basic elements involved in integration: the amplitude of the unitary postsynaptic potential; the manner in which non-simultaneous unitary events add in time (temporal summation), and the addition of unitary events occurring simultaneously in separate regions of the dendritic arbor (spatial summation). This review discusses how passive and active dendritic properties, and the functional characteristics of the synapse, shape these three elements of synaptic integration.

Integrity signals

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Crossref · 10.1038/35044552

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60 of 60 references verified0 citation errors · 0 not checkable

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  • The release of norepinephrine or acetylcholine can modulate the state of cortical activity through cell type and subcellular specific effects.

    “The release of either of these neurotransmitters can potentially modulate the state of cortical activity through cell type, and even subcellular, specific effects.”
  • Effects consistent with a role in arousal of pyramidal cell networks include depolarization of cortical neurons through reduction of membrane K+ currents, modulation of the h-current, and control of synaptic transmission.

    “Effects that are consistent with a role in arousal of pyramidal cell networks include depolarization of cortical neurons through the reduction of a variety of membrane K+ currents (McCormick, 1992), modulation of the h-current (Wang et al., 2007), which controls neuronal and dendritic excitability (Magee, 2000), and control of synaptic transmission, through the modulation of presynaptic terminals”
  • Several EPSPs have to be integrated by temporal and spatial summation to generate action potentials in a postsynaptic target cell.

    “Thus, several EPSPs have to be integrated by temporal and spatial summation to generate action potentials (APs) in a postsynaptic target cell 31 .”

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Authors
Magee, J. C.
Affiliations
Louisiana State University (US)
Corresponding author
Magee, Jeffrey C.
Venue
Nature reviews. Neuroscience
Published
2000-12
Volume
1
Issue
3
Pages
181-190
ISSN
  • 1471-003X (ISSN-L)
  • 1471-0048
OpenAlex
W1559348600
Cited by
737
References
60
Citations by year
2026: 28 · 2025: 32 · 2024: 37 · 2023: 25 · 2022: 30 · 2021: 36 · 2020: 32 · 2019: 59 · 2018: 32 · 2017: 20 · 2016: 39 · 2015: 50 · 2014: 33 · 2013: 42 · 2012: 27
FWCI
1.32
Type
journal article
Language
en
Open access
closed
Locations
  • Nature reviews. Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ion channel regulation and function
Keywords
dendritic integration, excitatory synaptic input, temporal summation, spatial summation, membrane potential
MeSH terms
Action Potentials, Animals, Dendrites, Humans, Models, Neurological, Synaptic Transmission, Synapses, Excitatory Postsynaptic Potentials, Cell Size

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