Networks of Coactive Neurons in Developing Layer 1
Identifieur interne : 000E95 ( Main/Exploration ); précédent : 000E94; suivant : 000E96Networks of Coactive Neurons in Developing Layer 1
Auteurs : Theodore H. Schwartz [États-Unis] ; Daniel Rabinowitz [États-Unis] ; Vivek Unni [États-Unis] ; Vikram S. Kumar [États-Unis] ; Diana K. Smetters [États-Unis] ; Areti Tsiola [États-Unis] ; Rafael Yuste [États-Unis]Source :
- Neuron [ 0896-6273 ] ; 1998.
English descriptors
- Teeft :
- Acsf, Action potentials, Active cells, Adrenergic, Adrenergic receptors, Agonist, Apical dendrites, Asymmetric correlation coefficients, Average distance, Bath application, Bath applications, Blocker, Calcium, Calcium accumulations, Calcium channel blocker, Calcium imaging, Calcium indicators, Calcium release, Calcium spikes, Calcium transients, Calretinin, Cell type, Cell types, Cells fire, Cerebral cortex, Cholinergic, Cholinergic receptors, Clear pattern, Coactive, Coactive neurons, Complex patterns, Correlated, Correlated activation, Correlated activations, Correlated activity, Correlated calcium transients, Correlated events, Correlated neurons, Correlated pairs, Correlation coefficient, Cortical, Cortical circuit, Cortical development, Cortical neurons, Cortical plate, Dendrite, Dendritic, Depolarizing, Depolarizing effect, Descriptive statistic, Donkey antibody, Electrical activity, Electrical stimulation, Entire data, Experimental procedures, Functional circuitry, Fura, Gaba, Gabaa, Glutamate, Glutamatergic, Glycine, Golgi study, Hemisphere preparations, Hippocampal neurons, Horizontal dendrite, Identifiable processes, Imaging, Internal stores, Jackson immunoresearch, Katz, Laminar organization, Layer, Lncr, Lncr cells, Locus coeruleus, Macintosh computer, Major role, Mammalian retina, Mock data sets, Monte carlo simulations, Multiple cells, Neocortical neurons, Neurological institute, Neuron, Neuronal, Neuronal activity, Neuronal domains, Neurotransmitter, Neurotransmitter receptors, Nmda, Nmda activation, Null hypothesis, Ogawa, Optical recordings, Other cell types, Other hand, Pairwise, Pairwise correlations, Pyramidal neurons, Raster plot, Receptor, Room temperature, Same field, Several seconds, Significant correlations, Significant pairwise correlations, Simultaneous activation, Slice preparation, Small groups, Sncr, Sncr cells, Sodium action potentials, Soma, Spinal cord, Spontaneous activation, Spontaneous activity, Spontaneous calcium transients, Standard acsf, Statistical analysis, Statistical significance, Synaptic, Synaptic blockers, Synaptic connections, Synaptically, Tangential slices, Test statistic, Time stamp, Total number, Transient, Visual cortex, Whole hemispheres, Yuste.
Abstract
Spontaneous neuronal activity plays an important role in the development of cortical circuitry, yet its spatio-temporal dynamics are poorly understood. Cajal-Retzius (CR) neurons in developing layer 1 are necessary for correct cortical lamination and are strategically located to coordinate early circuit activity. To characterize the spontaneous activity of CR and other layer 1 neurons during cortical development, we imaged calcium transients in populations of layer 1 neurons in hemispheres and slices from postnatal rat somatosensory neocortex. The spontaneous activity in layer 1 had complex spatio-temporal patterns. Groups of non-CR cells showed synchronous activations and formed networks of correlated neurons superimposed in the same territory. Correlated activity among non-CR cells was mediated by a depolarizing effect of GABA and was modulated by glutamate, probably released by CR cells. Our findings demonstrate that developing layer 1 can sustain complex patterns of correlated activity and reveal a circuit mechanism that can mediate this patterned activity.
Url:
DOI: 10.1016/S0896-6273(00)80993-9
Affiliations:
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Kumar</name><affiliation wicri:level="4"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biological Sciences, Columbia University, New York, New York 10027</wicri:regionArea><orgName type="university">Université Columbia</orgName><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Smetters, Diana K" sort="Smetters, Diana K" uniqKey="Smetters D" first="Diana K." last="Smetters">Diana K. Smetters</name><affiliation wicri:level="4"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biological Sciences, Columbia University, New York, New York 10027</wicri:regionArea><orgName type="university">Université Columbia</orgName><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Tsiola, Areti" sort="Tsiola, Areti" uniqKey="Tsiola A" first="Areti" last="Tsiola">Areti Tsiola</name><affiliation wicri:level="4"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biological Sciences, Columbia University, New York, New York 10027</wicri:regionArea><orgName type="university">Université Columbia</orgName><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Yuste, Rafael" sort="Yuste, Rafael" uniqKey="Yuste R" first="Rafael" last="Yuste">Rafael Yuste</name><affiliation wicri:level="4"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Biological Sciences, Columbia University, New York, New York 10027</wicri:regionArea><orgName type="university">Université Columbia</orgName><placeName><settlement type="city">New York</settlement><region type="state">État de New York</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Neuron</title><title level="j" type="abbrev">NEURON</title><idno type="ISSN">0896-6273</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1998">1998</date><biblScope unit="volume">20</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="541">541</biblScope><biblScope unit="page" to="552">552</biblScope></imprint><idno type="ISSN">0896-6273</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0896-6273</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Acsf</term><term>Action potentials</term><term>Active cells</term><term>Adrenergic</term><term>Adrenergic receptors</term><term>Agonist</term><term>Apical dendrites</term><term>Asymmetric correlation coefficients</term><term>Average distance</term><term>Bath application</term><term>Bath applications</term><term>Blocker</term><term>Calcium</term><term>Calcium accumulations</term><term>Calcium channel blocker</term><term>Calcium imaging</term><term>Calcium indicators</term><term>Calcium release</term><term>Calcium spikes</term><term>Calcium transients</term><term>Calretinin</term><term>Cell type</term><term>Cell types</term><term>Cells fire</term><term>Cerebral cortex</term><term>Cholinergic</term><term>Cholinergic receptors</term><term>Clear pattern</term><term>Coactive</term><term>Coactive neurons</term><term>Complex patterns</term><term>Correlated</term><term>Correlated activation</term><term>Correlated activations</term><term>Correlated activity</term><term>Correlated calcium transients</term><term>Correlated events</term><term>Correlated neurons</term><term>Correlated pairs</term><term>Correlation coefficient</term><term>Cortical</term><term>Cortical circuit</term><term>Cortical development</term><term>Cortical neurons</term><term>Cortical plate</term><term>Dendrite</term><term>Dendritic</term><term>Depolarizing</term><term>Depolarizing effect</term><term>Descriptive statistic</term><term>Donkey antibody</term><term>Electrical activity</term><term>Electrical stimulation</term><term>Entire data</term><term>Experimental procedures</term><term>Functional circuitry</term><term>Fura</term><term>Gaba</term><term>Gabaa</term><term>Glutamate</term><term>Glutamatergic</term><term>Glycine</term><term>Golgi study</term><term>Hemisphere preparations</term><term>Hippocampal neurons</term><term>Horizontal dendrite</term><term>Identifiable processes</term><term>Imaging</term><term>Internal stores</term><term>Jackson immunoresearch</term><term>Katz</term><term>Laminar organization</term><term>Layer</term><term>Lncr</term><term>Lncr cells</term><term>Locus coeruleus</term><term>Macintosh computer</term><term>Major role</term><term>Mammalian retina</term><term>Mock data sets</term><term>Monte carlo simulations</term><term>Multiple cells</term><term>Neocortical neurons</term><term>Neurological institute</term><term>Neuron</term><term>Neuronal</term><term>Neuronal activity</term><term>Neuronal domains</term><term>Neurotransmitter</term><term>Neurotransmitter receptors</term><term>Nmda</term><term>Nmda activation</term><term>Null hypothesis</term><term>Ogawa</term><term>Optical recordings</term><term>Other cell types</term><term>Other hand</term><term>Pairwise</term><term>Pairwise correlations</term><term>Pyramidal neurons</term><term>Raster plot</term><term>Receptor</term><term>Room temperature</term><term>Same field</term><term>Several seconds</term><term>Significant correlations</term><term>Significant pairwise correlations</term><term>Simultaneous activation</term><term>Slice preparation</term><term>Small groups</term><term>Sncr</term><term>Sncr cells</term><term>Sodium action potentials</term><term>Soma</term><term>Spinal cord</term><term>Spontaneous activation</term><term>Spontaneous activity</term><term>Spontaneous calcium transients</term><term>Standard acsf</term><term>Statistical analysis</term><term>Statistical significance</term><term>Synaptic</term><term>Synaptic blockers</term><term>Synaptic connections</term><term>Synaptically</term><term>Tangential slices</term><term>Test statistic</term><term>Time stamp</term><term>Total number</term><term>Transient</term><term>Visual cortex</term><term>Whole hemispheres</term><term>Yuste</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Spontaneous neuronal activity plays an important role in the development of cortical circuitry, yet its spatio-temporal dynamics are poorly understood. Cajal-Retzius (CR) neurons in developing layer 1 are necessary for correct cortical lamination and are strategically located to coordinate early circuit activity. To characterize the spontaneous activity of CR and other layer 1 neurons during cortical development, we imaged calcium transients in populations of layer 1 neurons in hemispheres and slices from postnatal rat somatosensory neocortex. The spontaneous activity in layer 1 had complex spatio-temporal patterns. Groups of non-CR cells showed synchronous activations and formed networks of correlated neurons superimposed in the same territory. Correlated activity among non-CR cells was mediated by a depolarizing effect of GABA and was modulated by glutamate, probably released by CR cells. Our findings demonstrate that developing layer 1 can sustain complex patterns of correlated activity and reveal a circuit mechanism that can mediate this patterned activity.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>État de New York</li></region><settlement><li>New York</li></settlement><orgName><li>Université Columbia</li></orgName></list><tree><country name="États-Unis"><region name="État de New York"><name sortKey="Schwartz, Theodore H" sort="Schwartz, Theodore H" uniqKey="Schwartz T" first="Theodore H." last="Schwartz">Theodore H. Schwartz</name></region><name sortKey="Kumar, Vikram S" sort="Kumar, Vikram S" uniqKey="Kumar V" first="Vikram S." last="Kumar">Vikram S. Kumar</name><name sortKey="Rabinowitz, Daniel" sort="Rabinowitz, Daniel" uniqKey="Rabinowitz D" first="Daniel" last="Rabinowitz">Daniel Rabinowitz</name><name sortKey="Smetters, Diana K" sort="Smetters, Diana K" uniqKey="Smetters D" first="Diana K." last="Smetters">Diana K. Smetters</name><name sortKey="Tsiola, Areti" sort="Tsiola, Areti" uniqKey="Tsiola A" first="Areti" last="Tsiola">Areti Tsiola</name><name sortKey="Unni, Vivek" sort="Unni, Vivek" uniqKey="Unni V" first="Vivek" last="Unni">Vivek Unni</name><name sortKey="Yuste, Rafael" sort="Yuste, Rafael" uniqKey="Yuste R" first="Rafael" last="Yuste">Rafael Yuste</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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