1988
Intracellular studies of dopamine neurons in vitro: pacemakers modulated by dopamine
Silva N, Bunney B. Intracellular studies of dopamine neurons in vitro: pacemakers modulated by dopamine. European Journal Of Pharmacology 1988, 149: 307-315. PMID: 3409955, DOI: 10.1016/0014-2999(88)90661-9.Peer-Reviewed Original ResearchConceptsSensitive neuronsInput resistanceAdministration of DADA-sensitive neuronsSelective D2 antagonistPacemaker-like activityHigh input resistanceZona compactaDA actionD2 antagonistDopamine neuronsIntracellular recordingsFiring rateIntracellular studyNeuronsReversal potentialTissue slicesDopamineHyperpolarizationSulpirideAntagonistCompactaAdministration
1986
Induction of depolarization block in midbrain dopamine neurons by repeated administration of haloperidol: analysis using in vivo intracellular recording.
Grace A, Bunney B. Induction of depolarization block in midbrain dopamine neurons by repeated administration of haloperidol: analysis using in vivo intracellular recording. Journal Of Pharmacology And Experimental Therapeutics 1986, 238: 1092-100. PMID: 3746660.Peer-Reviewed Original ResearchConceptsAdministration of haloperidolDopamine neuronsVivo intracellular recordingsDepolarization blockIntracellular recordingsNigral dopamine neuronsAdministration of neurolepticsActive dopamine neuronsSpontaneous spike activityDopamine agonist apomorphineAntipsychotic drug haloperidolSpontaneous electrophysiological activityMidbrain dopamine neuronsAcute administrationAgonist apomorphineSubstantia nigraControl ratsExcitatory driveDepolarization blockadeDrug haloperidolSpontaneous activitySpike activityFiring rateHaloperidolNeurons
1985
Low doses of apomorphine elicit two opposing influences on dopamine cell electrophysiology
Grace A, Bunney B. Low doses of apomorphine elicit two opposing influences on dopamine cell electrophysiology. Brain Research 1985, 333: 285-298. PMID: 3995296, DOI: 10.1016/0006-8993(85)91582-3.Peer-Reviewed Original ResearchConceptsDA cell firingDA cellsLow dosesInput resistanceDA agonistsReversal potentialStriatonigral pathwayCell firingCell firing rateElectrophysiological actionsApomorphine effectApomorphine administrationSlow depolarizationIntracellular recordingsIntravenous administrationDopamine cellsInhibitory inputsApomorphineStriatal cellsAction potentialsFiring rateAgonistsDosesCell dischargeCell electrophysiologyOpposing effects of striatonigral feedback pathways on midbrain dopamine cell activity
Grace A, Bunney B. Opposing effects of striatonigral feedback pathways on midbrain dopamine cell activity. Brain Research 1985, 333: 271-284. PMID: 2986775, DOI: 10.1016/0006-8993(85)91581-1.Peer-Reviewed Original ResearchConceptsInhibitory postsynaptic potentialsDA cellsStriatal stimulationReticulata neuronsDA neuronsRebound depolarizationReversal potentialSubstantia nigra zona reticulata neuronsStriatonigral GABAergic pathwayMidbrain dopamine cell activityDopamine cell activitySame stimulation parametersChloride injectionChloride channel blockerChloride reversal potentialSimilar reversal potentialsSimilar time courseGABAergic pathwayGABAergic projectionsZona reticulataPostsynaptic potentialsSystemic injectionChannel blockersIntracellular recordingsStriatal cells
1984
The control of firing pattern in nigral dopamine neurons: single spike firing
Grace A, Bunney B. The control of firing pattern in nigral dopamine neurons: single spike firing. Journal Of Neuroscience 1984, 4: 2866-2876. PMID: 6150070, PMCID: PMC6564731, DOI: 10.1523/jneurosci.04-11-02866.1984.Peer-Reviewed Original ResearchConceptsSingle-spike firingDA cellsSlow depolarizationCalcium chelator EGTADopamine neuronsSpike firingCalcium-activated potassium conductanceActive DA cellsNigral dopamine neuronsChelator EGTAVivo intracellular recordingsDA neuronsDepolarization inactivationMembrane potentialIontophoretic applicationTrain of spikesIntracellular recordingsExcitatory substancesIntracellular injectionCalcium entryAction potentialsAfterhyperpolarizationPotassium conductanceRate of riseNeuronsThe control of firing pattern in nigral dopamine neurons: burst firing
Grace A, Bunney B. The control of firing pattern in nigral dopamine neurons: burst firing. Journal Of Neuroscience 1984, 4: 2877-2890. PMID: 6150071, PMCID: PMC6564720, DOI: 10.1523/jneurosci.04-11-02877.1984.Peer-Reviewed Original ResearchConceptsDA cellsIntracellular injectionBase-line firing rateFiring ratePotassium conductanceIntracellular calcium injectionNigral dopamine neuronsStriatal DA releaseVivo intracellular recordingsBurst-firing modeDegree of burstDA releaseDopamine neuronsExtracellular iontophoresisBurst firingIntracellular recordingsCalcium injectionDopamine cellsCalcium influxCalcium involvementBursting patternInjectionCellsConsecutive spikesBlockade
1983
Intracellular and extracellular electrophysiology of nigral dopaminergic neurons—1. Identification and characterization
Grace A, Bunney B. Intracellular and extracellular electrophysiology of nigral dopaminergic neurons—1. Identification and characterization. Neuroscience 1983, 10: 301-315. PMID: 6633863, DOI: 10.1016/0306-4522(83)90135-5.Peer-Reviewed Original ResearchConceptsAction potentialsDopamine neuronsDopamine cellsGlyoxylic acid-induced catecholamine fluorescenceInput resistanceDopamine synthesizing enzymePostsynaptic target areasIntracellular dopamine contentNigral dopamine cellsPossible modulatory effectDopamine-containing cellsIntracellular dopamine concentrationSame inhibitory effectHigh input resistanceInitial segmentAntidromic activationDopaminergic neuronsDopamine contentIntracellular recordingsDopamine synthesisCaudate nucleusElectrophysiological characteristicsTyrosine hydroxylaseCatecholamine fluorescenceModulatory effectsIntracellular and extracellular electrophysiology of nigral dopaminergic neurons—2. Action potential generating mechanisms and morphological correlates
Grace A, Bunney B. Intracellular and extracellular electrophysiology of nigral dopaminergic neurons—2. Action potential generating mechanisms and morphological correlates. Neuroscience 1983, 10: 317-331. PMID: 6633864, DOI: 10.1016/0306-4522(83)90136-7.Peer-Reviewed Original ResearchConceptsInitial segment spikesDopamine neuronsSlow depolarizationAction potentialsAxon hillockDendritic dopamine releaseLong-duration afterhyperpolarizationNigral dopamine neuronsLow-threshold spikesLucifer yellow injectionExtracellular recording techniquesLong-duration spikesAction potential generationDopaminergic neuronsSpecific ionic currentsIntracellular recordingsDopamine releaseIntracellular injectionElectrophysiological studiesDendritic spikesMajor dendritesNeuron 2Action potential generating mechanismSomatic regionNeuronal compartments
1980
Nigral Dopamine Neurons: Intracellular Recording and Identification with L-Dopa Injection and Histofluorescence
Grace A, Bunney B. Nigral Dopamine Neurons: Intracellular Recording and Identification with L-Dopa Injection and Histofluorescence. Science 1980, 210: 654-656. PMID: 7433992, DOI: 10.1126/science.7433992.Peer-Reviewed Original ResearchConceptsL-DOPA injectionIntracellular recordingsAntidromic conduction velocitiesPutative dopaminergic neuronsDopamine-containing neuronsRat substantia nigraAntidromic activationDopaminergic neuronsSubstantia nigraSlow depolarizationBurst firingFluorescence histochemistryConduction velocityFast potentialsNeuronsExtracellular spikesInjectionHistofluorescenceRecordingsNigra