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Tuning the network: Modulation of neuronal microcircuits in the spinal cord and hippocampus

Lookup NU author(s): Dr Fiona LeBeau


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Adaptation of an organism to its changing environment ultimately depends on the modification of neuronal activity. The dynamic interaction between cellular components within neuronal networks relies on fast synaptic interaction via ionotropic receptors. However, neuronal networks are also subject to modulation mediated by various metabotropic G-protein-coupled receptors that modify synaptic and neuronal function. Modulation increases the functional complexity of a network, because the same cellular components can produce different outputs depending on the behavioural state of the animal. This review, which is part of the TINS Microcircuits Special Feature, provides an overview of neuromodulation in two neuronal circuits that both produce oscillatory activity but differ fundamentally in function. Hippocampal circuits are compared with the spinal networks generating locomotion, with a view to exploring common principles of neuromodulatory activity. © 2005 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Le Beau FEN, El Manira A, Griller S

Publication type: Review

Publication status: Published

Journal: Trends in Neurosciences

Year: 2005

Volume: 28

Issue: 10

Pages: 552-561

Print publication date: 01/10/2005

ISSN (print): 0166-2236

ISSN (electronic): 1878-108X


DOI: 10.1016/j.tins.2005.08.005

PubMed id: 16112755