Temporal representations of odors in an olfactory network. Laurent, G., Wehr, M., & Davidowitz, H. J. Neurosci., 16:3837-3847, 1996. abstract bibtex The responses of projection neurons in the antennal robe of the locust brain (the functional analog of mitral-tufted cells in the vertebrate olfactory bulb) lo natural blends and simple odors were studied with multiple intra- and extracellular recordings in vivo. Individual odors evoked complex temporal response patterns in many neurons. These patterns differed across odors for a given neuron and across neurons for a given odor, but were stable for each neuron over repealed presentations (separated by seconds to minutes) of the same odor. The response of individual neurons to an odor was superimposed on an odors specific coherent oscillatory population activity. Each neuron usually participated in the coherent oscillations during one or more specific epochs of the ensemble activity. These epochs of phase locking were reliable for each neuron over tens of repeated presentations of one odor. The timing of these epochs of synchronization differed across neurons and odors. Correlated activity of specific pairs of neurons, hence, generally occurred transiently during the population response, at times that were specific to these pairs and to the odor smelled. The field potential oscillations, therefore, fail to reveal a progressive transformation of the synchronized ensemble as the response to the odor unfolds. We propose that (1) odors are represented by spatially and temporally distributed ensembles of coherently firing neurons, and (2) the field potential oscillations that characterize odor responses in the olfactory system occur, at least in this animal, in parallel with a slower dynamic odor representation.
@article{ Laurent_etal96,
author = {Laurent, G. and Wehr, M. and Davidowitz,H.},
title = {Temporal representations of odors in an olfactory network},
journal = {J. Neurosci.},
year = {1996},
volume = {16},
pages = {3837-3847},
abstract = {The responses of projection neurons in the antennal robe of the locust
brain (the functional analog of mitral-tufted cells in the vertebrate
olfactory bulb) lo natural blends and simple odors were studied with
multiple intra- and extracellular recordings in vivo. Individual
odors evoked complex temporal response patterns in many neurons.
These patterns differed across odors for a given neuron and across
neurons for a given odor, but were stable for each neuron over repealed
presentations (separated by seconds to minutes) of the same odor.
The response of individual neurons to an odor was superimposed on
an odors specific coherent oscillatory population activity. Each
neuron usually participated in the coherent oscillations during one
or more specific epochs of the ensemble activity. These epochs of
phase locking were reliable for each neuron over tens of repeated
presentations of one odor. The timing of these epochs of synchronization
differed across neurons and odors. Correlated activity of specific
pairs of neurons, hence, generally occurred transiently during the
population response, at times that were specific to these pairs and
to the odor smelled. The field potential oscillations, therefore,
fail to reveal a progressive transformation of the synchronized ensemble
as the response to the odor unfolds. We propose that (1) odors are
represented by spatially and temporally distributed ensembles of
coherently firing neurons, and (2) the field potential oscillations
that characterize odor responses in the olfactory system occur, at
least in this animal, in parallel with a slower dynamic odor representation.},
en_number = {1.13:14}
}
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{"_id":"EwMJGEbBmDqWGonN9","bibbaseid":"laurent-wehr-davidowitz-temporalrepresentationsofodorsinanolfactorynetwork-1996","downloads":0,"creationDate":"2015-02-08T05:14:49.076Z","title":"Temporal representations of odors in an olfactory network","author_short":["Laurent, G.","Wehr, M.","Davidowitz, H."],"year":1996,"bibtype":"article","biburl":"http://cnslab.mb.jhu.edu/niebase.bib","bibdata":{"abstract":"The responses of projection neurons in the antennal robe of the locust brain (the functional analog of mitral-tufted cells in the vertebrate olfactory bulb) lo natural blends and simple odors were studied with multiple intra- and extracellular recordings in vivo. Individual odors evoked complex temporal response patterns in many neurons. These patterns differed across odors for a given neuron and across neurons for a given odor, but were stable for each neuron over repealed presentations (separated by seconds to minutes) of the same odor. The response of individual neurons to an odor was superimposed on an odors specific coherent oscillatory population activity. Each neuron usually participated in the coherent oscillations during one or more specific epochs of the ensemble activity. These epochs of phase locking were reliable for each neuron over tens of repeated presentations of one odor. The timing of these epochs of synchronization differed across neurons and odors. Correlated activity of specific pairs of neurons, hence, generally occurred transiently during the population response, at times that were specific to these pairs and to the odor smelled. The field potential oscillations, therefore, fail to reveal a progressive transformation of the synchronized ensemble as the response to the odor unfolds. We propose that (1) odors are represented by spatially and temporally distributed ensembles of coherently firing neurons, and (2) the field potential oscillations that characterize odor responses in the olfactory system occur, at least in this animal, in parallel with a slower dynamic odor representation.","author":["Laurent, G.","Wehr, M.","Davidowitz, H."],"author_short":["Laurent, G.","Wehr, M.","Davidowitz, H."],"bibtex":"@article{ Laurent_etal96,\n author = {Laurent, G. and Wehr, M. and Davidowitz,H.},\n title = {Temporal representations of odors in an olfactory network},\n journal = {J. Neurosci.},\n year = {1996},\n volume = {16},\n pages = {3837-3847},\n abstract = {The responses of projection neurons in the antennal robe of the locust\n\tbrain (the functional analog of mitral-tufted cells in the vertebrate\n\tolfactory bulb) lo natural blends and simple odors were studied with\n\tmultiple intra- and extracellular recordings in vivo. Individual\n\todors evoked complex temporal response patterns in many neurons.\n\tThese patterns differed across odors for a given neuron and across\n\tneurons for a given odor, but were stable for each neuron over repealed\n\tpresentations (separated by seconds to minutes) of the same odor.\n\tThe response of individual neurons to an odor was superimposed on\n\tan odors specific coherent oscillatory population activity. Each\n\tneuron usually participated in the coherent oscillations during one\n\tor more specific epochs of the ensemble activity. These epochs of\n\tphase locking were reliable for each neuron over tens of repeated\n\tpresentations of one odor. The timing of these epochs of synchronization\n\tdiffered across neurons and odors. Correlated activity of specific\n\tpairs of neurons, hence, generally occurred transiently during the\n\tpopulation response, at times that were specific to these pairs and\n\tto the odor smelled. The field potential oscillations, therefore,\n\tfail to reveal a progressive transformation of the synchronized ensemble\n\tas the response to the odor unfolds. We propose that (1) odors are\n\trepresented by spatially and temporally distributed ensembles of\n\tcoherently firing neurons, and (2) the field potential oscillations\n\tthat characterize odor responses in the olfactory system occur, at\n\tleast in this animal, in parallel with a slower dynamic odor representation.},\n en_number = {1.13:14}\n}","bibtype":"article","en_number":"1.13:14","id":"Laurent_etal96","journal":"J. Neurosci.","key":"Laurent_etal96","pages":"3837-3847","title":"Temporal representations of odors in an olfactory network","type":"article","volume":"16","year":"1996","bibbaseid":"laurent-wehr-davidowitz-temporalrepresentationsofodorsinanolfactorynetwork-1996","role":"author","urls":{},"downloads":0},"search_terms":["temporal","representations","odors","olfactory","network","laurent","wehr","davidowitz"],"keywords":[],"authorIDs":[],"dataSources":["ErLXoH8mqSjESnrN5"]}