2012
Warm Body Temperature Facilitates Energy Efficient Cortical Action Potentials
Yu Y, Hill A, McCormick D. Warm Body Temperature Facilitates Energy Efficient Cortical Action Potentials. PLOS Computational Biology 2012, 8: e1002456. PMID: 22511855, PMCID: PMC3325181, DOI: 10.1371/journal.pcbi.1002456.Peer-Reviewed Original ResearchConceptsAction potentialsFiring rateBody temperatureFunctional brain imaging signalsAction potential durationSingle action potentialCortical action potentialsAction potential generationNormal body temperatureSpike firing rateAverage firing rateSpike afterhyperpolarizationEfficient neural codesPotential durationBrain imaging signalsMarked reductionChannel inactivationPotential generationNeural signal transmissionBrain architectureWarmer body temperaturesImaging signalsNeural codeDurationAfterhyperpolarization
2011
Active Action Potential Propagation But Not Initiation in Thalamic Interneuron Dendrites
Casale A, McCormick D. Active Action Potential Propagation But Not Initiation in Thalamic Interneuron Dendrites. Journal Of Neuroscience 2011, 31: 18289-18302. PMID: 22171033, PMCID: PMC3269759, DOI: 10.1523/jneurosci.4417-11.2011.Peer-Reviewed Original ResearchConceptsDorsal lateral geniculate nucleusLateral geniculate nucleusSomatic current injectionAction potentialsDendritic arborsGeniculate nucleusSynaptic stimulationThalamic interneuronsMouse dorsal lateral geniculate nucleusDendritic neurotransmitter releaseEntire dendritic arborSingle action potentialAxon initial segmentVoltage-gated sodiumProximal dendritesDendritic appendagesInhibitory neurotransmitterExcitatory inputsInhibitory interneuronsVoltage-sensitive dyeSynaptic inputsThalamocortical cellsCalcium transientsCalcium imagingNeurotransmitter release
2008
Cortical Action Potential Backpropagation Explains Spike Threshold Variability and Rapid-Onset Kinetics
Yu Y, Shu Y, McCormick DA. Cortical Action Potential Backpropagation Explains Spike Threshold Variability and Rapid-Onset Kinetics. Journal Of Neuroscience 2008, 28: 7260-7272. PMID: 18632930, PMCID: PMC2664555, DOI: 10.1523/jneurosci.1613-08.2008.Peer-Reviewed Original ResearchConceptsAxon initial segmentAction potentialsAction potential backpropagationAction potential outputAction potential responsesThreshold variabilityInitial segmentCortical neuronsSynaptic activitySynaptic inputsSomatic recordingsCortical ensemblesSensorimotor integrationRate variabilityAction potential eventsSpike initiationAmplitude-time courseTime courseHigh rateTrial variabilityNeurons
2007
Enhancement of Visual Responsiveness by Spontaneous Local Network Activity In Vivo
Haider B, Duque A, Hasenstaub A, Yu Y, McCormick D. Enhancement of Visual Responsiveness by Spontaneous Local Network Activity In Vivo. Journal Of Neurophysiology 2007, 97: 4186-4202. PMID: 17409168, DOI: 10.1152/jn.01114.2006.Peer-Reviewed Original ResearchConceptsPostsynaptic potentialsVisual responsivenessSpontaneous depolarizationsNetwork activityNeocortical network activityInhibitory synaptic potentialsPrimary visual cortexLocal network activityAction potential generationContrast response functionsCortical neuronsSynaptic potentialsSynaptic transmissionSpontaneous activityMembrane potential depolarizationKetamine-xylazineExtracellular recordingsVisual cortexAction potentialsLocal circuitsIntegrative propertiesSensory responsesPotential depolarizationSlow oscillationsPotential generation
2006
Properties of Action-Potential Initiation in Neocortical Pyramidal Cells: Evidence From Whole Cell Axon Recordings
Shu Y, Duque A, Yu Y, Haider B, McCormick D. Properties of Action-Potential Initiation in Neocortical Pyramidal Cells: Evidence From Whole Cell Axon Recordings. Journal Of Neurophysiology 2006, 97: 746-760. PMID: 17093120, DOI: 10.1152/jn.00922.2006.Peer-Reviewed Original ResearchConceptsCortical pyramidal cellsAction potential initiationAxon initial segmentPyramidal cellsAction potentialsSynaptic activityLayer 5 pyramidal neuronsSimultaneous whole-cell recordingsWhole-cell recordingsNeocortical pyramidal cellsRecurrent network activityAction potential generationInitial segmentIntradendritic injectionPyramidal neuronsApical dendritesEpileptiform activityCortical neuronsEpileptiform dischargesIntracortical axonsEpileptic seizuresSynaptic bombardmentCell recordingsDistal axonsSynaptic barragesModulation of intracortical synaptic potentials by presynaptic somatic membrane potential
Shu Y, Hasenstaub A, Duque A, Yu Y, McCormick D. Modulation of intracortical synaptic potentials by presynaptic somatic membrane potential. Nature 2006, 441: 761-765. PMID: 16625207, DOI: 10.1038/nature04720.Peer-Reviewed Original ResearchConceptsIntracortical synaptic potentialsSomatic membrane potentialCerebral cortexMembrane potentialPostsynaptic potentialsSynaptic potentialsSynaptic activityEpileptic seizuresAction potentialsSensory stimulationNeuronal communicationMembrane potential changesNeuronal signalsRecording pointsSole formPossible alternative mechanismSeizuresCortexAxonsNeurons
2004
Slow Adaptation in Fast-Spiking Neurons of Visual Cortex
Descalzo V, Nowak L, Brumberg J, McCormick D, Sanchez-Vives M. Slow Adaptation in Fast-Spiking Neurons of Visual Cortex. Journal Of Neurophysiology 2004, 93: 1111-1118. PMID: 15385594, DOI: 10.1152/jn.00658.2004.Peer-Reviewed Original ResearchConceptsFS neuronsSpike frequency adaptationSlower time courseShort-duration action potentialsTime courseNeuron's functional propertiesPostadaptation periodSlow afterhyperpolarizationCortical slicesNeuron dischargeAfferent inputInhibitory interneuronsVisual cortexAction potentialsNeuronsSlow adaptationPrevious studiesAfterhyperpolarizationInterneuronsExcitabilityCortexDischargeChapter 5 Membrane Potential and Action Potential
McCormick D. Chapter 5 Membrane Potential and Action Potential. 2004, 115-140. DOI: 10.1016/b978-012148660-0/50006-8.Peer-Reviewed Original Research
2003
Electrophysiological Classes of Cat Primary Visual Cortical Neurons In Vivo as Revealed by Quantitative Analyses
Nowak L, Azouz R, Sanchez-Vives M, Gray C, McCormick D. Electrophysiological Classes of Cat Primary Visual Cortical Neurons In Vivo as Revealed by Quantitative Analyses. Journal Of Neurophysiology 2003, 89: 1541-1566. PMID: 12626627, DOI: 10.1152/jn.00580.2002.Peer-Reviewed Original ResearchConceptsAction potentialsElectrophysiological classesCortical neuronsIntrinsic burstingPrimary visual cortical neuronsShort-duration action potentialsCortical neuronal functionSpiny stellate cellsRegular spikingSpiny stellate neuronsVisual cortical neuronsFrequency adaptationCat area 17High-frequency burstsSpike frequency adaptationCH neuronsTonic trainsNonpyramidal cellsIB neuronsRS neuronsStellate neuronsPyramidal cellsArea 17FS neuronsStellate cells
2001
ON THE CELLULAR AND NETWORK BASES OF EPILEPTIC SEIZURES
McCormick D, Contreras D. ON THE CELLULAR AND NETWORK BASES OF EPILEPTIC SEIZURES. Annual Review Of Physiology 2001, 63: 815-846. PMID: 11181977, DOI: 10.1146/annurev.physiol.63.1.815.Peer-Reviewed Original ResearchConceptsCerebral cortexEpileptic seizuresSynchronized burstsRhythmic burst dischargesSpike-wave activityIntrinsic membrane propertiesForm of seizuresPeriod of hyperpolarizationLoss of balanceRecurrent excitatory connectionsEpileptic syndromesSeizure dischargesPyramidal neuronsTonic depolarizationEpileptiform activitySeizure generationBurst dischargesInhibitory neuronsInhibitory influenceInterictal spikesNormal brain rhythmsSynaptic plasticityAction potentialsSeizuresMammalian forebrain
2000
Ionic Mechanisms Underlying Repetitive High-Frequency Burst Firing in Supragranular Cortical Neurons
Brumberg J, Nowak L, McCormick D. Ionic Mechanisms Underlying Repetitive High-Frequency Burst Firing in Supragranular Cortical Neurons. Journal Of Neuroscience 2000, 20: 4829-4843. PMID: 10864940, PMCID: PMC6772270, DOI: 10.1523/jneurosci.20-13-04829.2000.Peer-Reviewed Original ResearchConceptsLayer II/III pyramidal neuronsHigh-frequency burst dischargesAction potential generationAction potentialsPyramidal neuronsCortical neuronsBurst dischargesHigh-frequency burst firingVisual cortical slicesAction potential burstsFirst action potentialBurst-firing modeHigh-frequency burstsPotential generationIonic mechanismsIntrinsic burstsCortical slicesLocal cortical networksBurst firingNeocortical neuronsIntracellular recordingsPostsynaptic neuronsATX IIQX-314Single spiking
1998
The Functional Influence of Burst and Tonic Firing Mode on Synaptic Interactions in the Thalamus
Kim U, McCormick D. The Functional Influence of Burst and Tonic Firing Mode on Synaptic Interactions in the Thalamus. Journal Of Neuroscience 1998, 18: 9500-9516. PMID: 9801387, PMCID: PMC6792899, DOI: 10.1523/jneurosci.18-22-09500.1998.Peer-Reviewed Original ResearchConceptsAction potentialsThalamocortical neuronsPostsynaptic neuronsDorsal lateral geniculate nucleus (dLGN) neuronsLateral geniculate nucleus neuronsDual intracellular recordingsTonic firing modesLow-threshold Ca2Single action potentialHigh-frequency burstsAction potential generationPerigeniculate neuronsTonic trainsCell typesMembrane potentialNucleus neuronsBurst dischargesIntracellular recordingsGeneration of Ca2Synaptic transmissionPresynaptic cellTemporal summationEpileptic seizuresSynchronized rhythmic oscillationsSynaptic interactionsFunctional and Ionic Properties of a Slow Afterhyperpolarization in Ferret Perigeniculate Neurons In Vitro
Kim U, Mccormick D. Functional and Ionic Properties of a Slow Afterhyperpolarization in Ferret Perigeniculate Neurons In Vitro. Journal Of Neurophysiology 1998, 80: 1222-1235. PMID: 9744934, DOI: 10.1152/jn.1998.80.3.1222.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnesthetics, LocalAnimalsApaminBicucullineCalciumCalcium Channel BlockersExcitatory Postsynaptic PotentialsFemaleFerretsGABA AntagonistsGamma-Aminobutyric AcidGeniculate BodiesLidocaineMaleNeuronsOmega-Conotoxin GVIAPeptidesPeriodicityPotassiumPotassium ChannelsSodiumTetraethylammoniumTetrodotoxinConceptsApplication of apaminSlow afterhyperpolarizationLow-threshold Ca2Perigeniculate neuronsPlateau potentialsBlock of Ca2Spindle wave generationMedium-duration afterhyperpolarizationGABAergic neuronsTonic dischargeFast afterhyperpolarizationPerigeniculate nucleusIntracellular recordingsAfterhyperpolarizationAction potentialsRefractory periodLocal applicationProlonged depolarizationRepetitive Ca2Spindle wavesReversal potentialNeuronsApaminMembrane conductanceActivation
1997
Functional Properties of Perigeniculate Inhibition of Dorsal Lateral Geniculate Nucleus Thalamocortical Neurons In Vitro
Sanchez-Vives M, McCormick D. Functional Properties of Perigeniculate Inhibition of Dorsal Lateral Geniculate Nucleus Thalamocortical Neurons In Vitro. Journal Of Neuroscience 1997, 17: 8880-8893. PMID: 9348355, PMCID: PMC6573089, DOI: 10.1523/jneurosci.17-22-08880.1997.Peer-Reviewed Original ResearchMeSH KeywordsAcetazolamideAnimalsAnticonvulsantsBaclofenBicucullineCerebral CortexConvulsantsElectrophysiologyFemaleFerretsGABA AgonistsGABA AntagonistsGamma-Aminobutyric AcidGeniculate BodiesMaleMembrane PotentialsNeural InhibitionNeural PathwaysNeuronsOrganophosphorus CompoundsPicrotoxinReceptors, GABA-AReceptors, GABA-BReceptors, PresynapticThalamic NucleiConceptsGABAB receptorsThalamocortical neuronsPGN neuronsGABAA receptorsThalamocortical cellsGABAB receptor-mediated IPSPsLocal applicationDorsal lateral geniculate nucleusReceptor-mediated IPSPsSynchronous slow oscillationsLow-intensity stimulationLow-threshold Ca2Lateral geniculate nucleusStrong activationPerigeniculate nucleusGeniculate nucleusIntracellular recordingsInhibitory influenceAction potentialsIntensity stimulationThreshold Ca2IPSPsNeuronsSpindle wavesPathological conditionsPhysiological properties of inhibitory interneurons in cat striate cortex.
Azouz R, Gray C, Nowak L, McCormick D. Physiological properties of inhibitory interneurons in cat striate cortex. Cerebral Cortex 1997, 7: 534-545. PMID: 9276178, DOI: 10.1093/cercor/7.6.534.Peer-Reviewed Original ResearchConceptsBrief action potentialsReceptive field propertiesReceptive field typesSpike frequency adaptationSimple receptive fieldsAxonal arborizationIntracellular recordingsInhibitory interneuronsBasket cellsSpontaneous activityStriate cortexLayers IIAction potentialsFiring patternsResponsive cellsVisual stimulationFrequency adaptationDirection preferenceInterneuronsHigh rateReceptive fieldsCortexCatsCellsSpike trainsInfluence of low and high frequency inputs on spike timing in visual cortical neurons.
Nowak L, Sanchez-Vives M, McCormick D. Influence of low and high frequency inputs on spike timing in visual cortical neurons. Cerebral Cortex 1997, 7: 487-501. PMID: 9276174, DOI: 10.1093/cercor/7.6.487.Peer-Reviewed Original ResearchConceptsCortical neuronsAction potentialsFerret visual cortexAction potential dischargeVisual cortical neuronsInterspike intervalsAction potential generationAction potential timingTemporal precisionPostsynaptic potentialsGamma frequency rangeIntracellular recordingsIntracellular injectionVisual cortexPotential dischargeNeuronsVisual stimulationCortical networksRegular spikingSensory stimuliSingle trialHigh temporal precisionPotential timingHigh frequencyPotential generationSynchronized Oscillations in the Inferior Olive Are Controlled by the Hyperpolarization-Activated Cation Current I h
Bal T, McCormick D. Synchronized Oscillations in the Inferior Olive Are Controlled by the Hyperpolarization-Activated Cation Current I h. Journal Of Neurophysiology 1997, 77: 3145-3156. PMID: 9212264, DOI: 10.1152/jn.1997.77.6.3145.Peer-Reviewed Original ResearchConceptsLow-threshold Ca2Inferior olive nucleusIO neuronsGuinea pigsHyperpolarization-activated cationic currentLocal applicationDependent action potentialsPresence of apaminMembrane potentialInferior olive neuronsIntracellular recordingsIntracellular injectionPacemaker potentialsRhythmic generationInferior oliveAfterhyperpolarizationAction potentialsCationic currentRemoval of inactivationExtracellular applicationNeuronsHyperpolarizationApaminCa2Pigs
1995
Electrophysiological and pharmacological properties of interneurons in the cat dorsal lateral geniculate nucleus
Pape H, McCormick D. Electrophysiological and pharmacological properties of interneurons in the cat dorsal lateral geniculate nucleus. Neuroscience 1995, 68: 1105-1125. PMID: 8544986, DOI: 10.1016/0306-4522(95)00205-w.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsCatsElectric StimulationElectrophysiologyExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsGABA-A Receptor AgonistsGABA-A Receptor AntagonistsGABA-B Receptor AgonistsGABA-B Receptor AntagonistsGamma-Aminobutyric AcidGeniculate BodiesIn Vitro TechniquesInterneuronsPatch-Clamp TechniquesThalamusConceptsDorsal lateral geniculate nucleusCat dorsal lateral geniculate nucleusLateral geniculate nucleusAction potentialsGeniculate nucleusGABAB receptor agonist baclofenGABAA receptor agonist muscimolSpontaneous action potential activityPharmacological propertiesStrong spike frequency adaptationSmall slow depolarizationSubpopulation of interneuronsReceptor agonist baclofenSpontaneous spike activityAction potential dischargeDorsal lateral geniculateReceptor agonist muscimolApplication of serotoninAction potential activityApplication of acetylcholineChloride equilibrium potentialHigh-frequency trainsSpike frequency adaptationUnique electrophysiological characteristicsAgonist baclofenPostnatal development of synchronized network oscillations in the ferret dorsal lateral geniculate and perigeniculate nuclei
McCormick D, Trent F, Ramoa A. Postnatal development of synchronized network oscillations in the ferret dorsal lateral geniculate and perigeniculate nuclei. Journal Of Neuroscience 1995, 15: 5739-5752. PMID: 7643215, PMCID: PMC6577643, DOI: 10.1523/jneurosci.15-08-05739.1995.Peer-Reviewed Original ResearchConceptsInhibitory postsynaptic potentialsLow-threshold Ca2PGN neuronsIntracellular recordingsAction potentialsSpindle wavesPostnatal developmentGABAA receptorsRelay cellsElectrophysiological propertiesGABAA antagonist bicuculline methiodideHigh-frequency burst dischargesThreshold Ca2Dorsal lateral geniculate nucleusFerret dorsal lateral geniculate nucleusSpindle wave generationNetwork oscillationsDorsal lateral geniculateAction potential firingLateral geniculate nucleusThalamocortical relay cellsSynchronized network oscillationsBarrages of EPSPsLGNd relay cellsHigh-frequency bursts
1994
Developmental changes in electrophysiological properties of LGNd neurons during reorganization of retinogeniculate connections
Ramoa A, McCormick D. Developmental changes in electrophysiological properties of LGNd neurons during reorganization of retinogeniculate connections. Journal Of Neuroscience 1994, 14: 2089-2097. PMID: 8158259, PMCID: PMC6577110, DOI: 10.1523/jneurosci.14-04-02089.1994.Peer-Reviewed Original ResearchConceptsLGNd neuronsImmature neuronsAction potentialsElectrophysiological propertiesLittle spike frequency adaptationDependent action potentialsAction potential activityEarly postnatal lifeWhole-cell recordingsEarly postnatal developmentPatch-clamp techniqueSpike frequency adaptationHigh input resistanceDorsal LGNImmature synapsesCritical developmental periodRetinogeniculate connectionsMembrane potentialPostnatal weekIntracellular injectionPostnatal lifePostnatal developmentNeuronsInput resistanceFrequency adaptation