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Journal Article

Model of cellular and network mechanisms for odor-evoked temporal patterning in the locust antennal lobe

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Laurent,  Gilles
Neural systems Department, Max Planck Institute for Brain Research, Max Planck Society;

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https://www.ncbi.nlm.nih.gov/pubmed/11395015
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Citation

Bazhenov, M., Stopfer, M., Rabinovich, M., Abarbanel, H. D., Sejnowski, T. J., & Laurent, G. (2001). Model of cellular and network mechanisms for odor-evoked temporal patterning in the locust antennal lobe. Neuron, 30(2), 569-81. doi:10.1016/s0896-6273(01)00286-0.


Cite as: https://hdl.handle.net/21.11116/0000-0008-07EA-9
Abstract
Locust antennal lobe (AL) projection neurons (PNs) respond to olfactory stimuli with sequences of depolarizing and hyperpolarizing epochs, each lasting hundreds of milliseconds. A computer simulation of an AL network was used to test the hypothesis that slow inhibitory connections between local neurons (LNs) and PNs are responsible for temporal patterning. Activation of slow inhibitory receptors on PNs by the same GABAergic synapses that underlie fast oscillatory synchronization of PNs was sufficient to shape slow response modulations. This slow stimulus- and neuron-specific patterning of AL activity was resistant to blockade of fast inhibition. Fast and slow inhibitory mechanisms at synapses between LNs and PNs can thus form dynamical PN assemblies whose elements synchronize transiently and oscillate collectively, as observed not only in the locust AL, but also in the vertebrate olfactory bulb.