2012
Bursting as a source of non‐linear determinism in the firing patterns of nigral dopamine neurons
Jeong J, Shi W, Hoffman R, Oh J, Gore JC, Bunney BS, Peterson BS. Bursting as a source of non‐linear determinism in the firing patterns of nigral dopamine neurons. European Journal Of Neuroscience 2012, 36: 3214-3223. PMID: 22831464, PMCID: PMC3490015, DOI: 10.1111/j.1460-9568.2012.08238.x.Peer-Reviewed Original ResearchConceptsNigral dopamine neuronsDA neuronsFiring patternsComplex firing patternsDopamine neuronsBursting activityChloral hydrate-anesthetized ratsHalothane-anesthetized ratsRat substantia nigraReward-related learningSubstantia nigraPhasic burstsFiring activityNeuronsBursting neuronsRatsStochastic firing patternsVivoNon-linear deterministic structureActivityNigra
2007
Oscillatory firing of dopamine neurons: Differences between cells in the substantia nigra and ventral tegmental area
Zhang D, Yang S, Jin G, Bunney B, Shi W. Oscillatory firing of dopamine neurons: Differences between cells in the substantia nigra and ventral tegmental area. Synapse 2007, 62: 169-175. PMID: 18081182, DOI: 10.1002/syn.20479.Peer-Reviewed Original ResearchConceptsVentral tegmental areaDA neuronsSubstantia nigraDopamine neuronsTegmental areaSlow oscillationsChloral hydrate-anesthetized ratsSN DA neuronsVTA DA neuronsDegree of burstingVariability of firingAfferent inputAdjacent substantia nigraOscillatory firingFiring rateNeuronsNeuronal oscillationsNigraCellsFiringRatsBrainImportant role
1997
Characterization of dopamine‐induced depolarization of prefrontal cortical neurons
Shi W, Zheng P, Liang X, Bunney B. Characterization of dopamine‐induced depolarization of prefrontal cortical neurons. Synapse 1997, 26: 415-422. PMID: 9215600, DOI: 10.1002/(sici)1098-2396(199708)26:4<415::aid-syn9>3.0.co;2-9.Peer-Reviewed Original ResearchConceptsEffects of dopaminePFC neuronsDA agonistsPrefrontal cortexAtypical antipsychotic drug clozapinePrefrontal cortical neuronsRat brain slicesAntipsychotic drug clozapineWhole-cell recordingsPFC pyramidal cellsSynaptic blockadeDA receptorsBeta antagonistDA antagonistsSubstantia nigraCortical neuronsPyramidal cellsBrain slicesDrug clozapineCell recordingsNeuronsAntagonistNonspecific mechanismsDopamineDepolarization
1996
Effects of Lesions in the Medial Prefrontal Cortex on the Activity of Midbrain Dopamine Neurons
Shim S, Bunney B, Shi W. Effects of Lesions in the Medial Prefrontal Cortex on the Activity of Midbrain Dopamine Neurons. Neuropsychopharmacology 1996, 15: 437-441. PMID: 8914116, DOI: 10.1016/s0893-133x(96)00052-8.Peer-Reviewed Original ResearchConceptsVentral tegmental areaDA neuronsPrefrontal cortexSubstantia nigraPFC lesionsBursting activityFiring rateActive DA cellsSN DA neuronsActive DA neuronsMidbrain dopamine neuronsSingle-unit recordingsMedial prefrontal cortexDA cellsDopamine neuronsTegmental areaLocal injectionIbotenic acidUnit recordingsLesionsSame lesionNeuronsRatsActivityCortex
1995
Nonlinear sequence-dependent structure of nigral dopamine neuron interspike interval firing patterns
Hoffman R, Shi W, Bunney B. Nonlinear sequence-dependent structure of nigral dopamine neuron interspike interval firing patterns. Biophysical Journal 1995, 69: 128-137. PMID: 7669889, PMCID: PMC1236231, DOI: 10.1016/s0006-3495(95)79882-4.Peer-Reviewed Original ResearchConceptsNonlinear deterministic structureDeterministic structureNumber of degreesDopamine neuronsDynamical analysisEffect of nonstationarityRandom processFiring patternsNigral dopamine neuronsRat substantia nigraSubstantia nigraSynaptic inputsISI sequencesNeuron responsesTime seriesNeural circuit interactionsSequence-dependent structureNeuronsFiring modesCircuit interactionsOverall predictabilityNonstationarity
1992
Roles of intracellular cAMP and protein kinase A in the actions of dopamine and neurotensin on midbrain dopamine neurons
Shi W, Bunney B. Roles of intracellular cAMP and protein kinase A in the actions of dopamine and neurotensin on midbrain dopamine neurons. Journal Of Neuroscience 1992, 12: 2433-2438. PMID: 1318960, PMCID: PMC6575923, DOI: 10.1523/jneurosci.12-06-02433.1992.Peer-Reviewed Original ResearchConceptsDopamine-induced inhibitionEffects of neurotensinDopamine neuronsIntracellular cAMPAdenylate cyclaseAction of neurotensinRat midbrain slicesAction of dopamineVentral tegmental areaMidbrain dopamine neuronsIntracellular cAMP levelsMidbrain slicesSubstantia nigraTegmental areaDopamine cellsDopamine effectsSpontaneous activityModulatory effectsNeurotensinIsobutyl methylxanthineInhibitory effectNeuronsCAMP levelsProtein kinase CInhibition
1991
Repetitive firing properties of putative dopamine-containing neurons in vitro: regulation by an apamin-sensitive Ca2+-activated K+ conductance
Shepard P, Bunney B. Repetitive firing properties of putative dopamine-containing neurons in vitro: regulation by an apamin-sensitive Ca2+-activated K+ conductance. Experimental Brain Research 1991, 86: 141-150. PMID: 1756785, DOI: 10.1007/bf00231048.Peer-Reviewed Original ResearchConceptsAction potentialsPutative dopamine-containing neuronsEffects of apaminDopamine-containing neuronsIntracellular recording techniquesPost-spike afterhyperpolarizationRepetitive firing propertiesTypes of Ca2Apamin-sensitive Ca2Adaptive neuronal responsesZona compactaSubstantia nigraBath applicationInhibitory periodNeuronal responsesAfterhyperpolarizationApaminFiring propertiesRecording techniquesCellular mechanismsElectroresponsive propertiesFrequency adaptationSelective inhibitorInterspike intervalsNeurons
1988
Effects of apamin on the discharge properties of putative dopamine-containing neurons in vitro
Shepard P, Bunney B. Effects of apamin on the discharge properties of putative dopamine-containing neurons in vitro. Brain Research 1988, 463: 380-384. PMID: 3196925, DOI: 10.1016/0006-8993(88)90414-3.Peer-Reviewed Original ResearchConceptsDopamine-containing neuronsPutative dopamine-containing neuronsEffects of apaminCalcium-activated potassium conductanceCalcium-activated potassium channelsBrain slice preparationApamin administrationSubstantia nigraSlice preparationNeuronal excitabilityBursting activityPotassium conductancePotassium channelsNeuronsSelective inhibitorApaminRegular activitiesExcitabilityAdministrationNigra
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
Possible mechanisms by which repeated clozapine administration differentially affects the activity of two subpopulations of midbrain dopamine neurons
Chiodo L, Bunney B. Possible mechanisms by which repeated clozapine administration differentially affects the activity of two subpopulations of midbrain dopamine neurons. Journal Of Neuroscience 1985, 5: 2539-2544. PMID: 2863337, PMCID: PMC6565310, DOI: 10.1523/jneurosci.05-09-02539.1985.Peer-Reviewed Original ResearchConceptsDA neuronsClozapine administrationChronic treatmentDepolarization inactivationExtracellular single cell recording techniquesInhibitory neurotransmitter gamma-aminobutyric acidNeurotransmitter gamma-aminobutyric acidVentral tegmental area (VTA) dopamineSingle cell recording techniquesA10 DA neuronsVivo spontaneous activityMidbrain DA neuronsChloral hydrate anesthesiaCombination of drugsMidbrain dopamine neuronsGamma-aminobutyric acidDifferential effectsMechanism of actionAcute treatmentMicroiontophoretic applicationSubstantia nigraReceptor antagonistDA cellsDopamine neuronsSpontaneous activityFiring properties of substantia nigra dopaminergic neurons in freely moving rats
Freeman A, Meltzer L, Bunney B. Firing properties of substantia nigra dopaminergic neurons in freely moving rats. Life Sciences 1985, 36: 1983-1994. PMID: 3990520, DOI: 10.1016/0024-3205(85)90448-5.Peer-Reviewed Original ResearchConceptsPutative DA neuronsDA neuronsDopaminergic neuronsParalyzed ratsSubstantia nigra dopaminergic neuronsFiring patternsPutative dopaminergic neuronsNigrostriatal DA systemNigra dopaminergic neuronsApomorphine-induced inhibitionSingle spike activityPattern of firingSingle-unit recordingsDegree of burstSubstantia nigraDA cellsElectrophysiological characteristicsUnit recordingsSpike activityFiring propertiesRatsFiring rateNeuronsDA systemCells
1981
Peptide-monoamine coexistence: Studies of the actions of cholecystokinin-like peptide on the electrical activity of midbrain dopamine neurons
Skirboll L, Grace A, Hommer D, Rehfeld J, Goldstein M, Hökfelt T, Bunney B. Peptide-monoamine coexistence: Studies of the actions of cholecystokinin-like peptide on the electrical activity of midbrain dopamine neurons. Neuroscience 1981, 6: 2111-2124. PMID: 6120481, DOI: 10.1016/0306-4522(81)90002-6.Peer-Reviewed Original ResearchConceptsCholecystokinin-like peptidesVentral tegmental areaDopaminergic neuronsFiring rateSubstantia nigraTegmental areaDopaminergic cellsExtracellular single-unit recording techniquesMidbrain dopamine-containing neuronsSingle-unit recording techniquesDopamine-containing neuronsBrain dopaminergic systemDopamine-rich areasMidbrain dopamine neuronsDepolarization inactivationResponsive neuronsDopamine neuronsDopaminergic systemComparable dosesTyrosine hydroxylaseCholecystokininBursting activityNeuronsImmunocytochemical techniquesRecording techniques
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 spikesInjectionHistofluorescenceRecordingsNigraEffect of sensory stimuli on the activity of dopaminergic neurons: Involvement of non-dopaminergic nigral neurons and striato-nigral pathways
Hommer D, Bunney B. Effect of sensory stimuli on the activity of dopaminergic neurons: Involvement of non-dopaminergic nigral neurons and striato-nigral pathways. Life Sciences 1980, 27: 377-386. PMID: 7412480, DOI: 10.1016/0024-3205(80)90185-x.Peer-Reviewed Original ResearchConceptsStriato-nigral pathwayDopaminergic neuronsReticulata neuronsInhibitory periodSingle-unit recording techniquesNon-dopaminergic neuronsNigro-striatal pathwaySciatic nerve stimulationRat substantia nigraDopaminergic neuron activitySensory stimuliInitial inhibitionStimulation-induced changesActivity of dopaminergicNigral neuronsNerve stimulationSubstantia nigraNeuron activityNeuronsRecording techniquesHaloperidolLesionsInhibitionStimulationPathwayPeripheral and striatal influences on nigral dopamine cells: Mediation by reticulata neurons
Grace A, Hommer D, Bunney B. Peripheral and striatal influences on nigral dopamine cells: Mediation by reticulata neurons. Brain Research Bulletin 1980, 5: 105-109. DOI: 10.1016/0361-9230(80)90017-9.Peer-Reviewed Original ResearchDA cellsZona reticulataGABA agonistsInhibitory influenceDA cell firing rateDopamine receptor blocker haloperidolStriato-nigral pathwayNigral dopamine cellsCell firing rateReticulata neuronsStriatal influencesSubstantia nigraDopaminergic cellsDopamine cellsNoxious stimuliLow dosesFiring rateNeuronsInhibitory effectAgonistsCell rateCellsHaloperidolMuscimolDosesChanging Concepts of Nigral Dopamine System Function Within the Basal Ganglia: Relevance to Extrapyramidal Disorders
Bunney B, Grace A, Hommer D. Changing Concepts of Nigral Dopamine System Function Within the Basal Ganglia: Relevance to Extrapyramidal Disorders. Journal Of Neural Transmission. Supplementa 1980, 17-23. PMID: 6107330, DOI: 10.1007/978-3-7091-8582-7_3.Peer-Reviewed Original ResearchConceptsBasal gangliaExtrapyramidal disordersDopaminergic systemNigral dopaminergic systemExtrapyramidal motor systemDopamine system functionStriatal outputSubstantia nigraNeurotransmitter systemsBrain pathwaysGangliaBrain regionsDisordersSensory inputMotor systemSystem functionSymptomsPathwayBrainNigra
1979
Paradoxical GABA excitation of nigral dopaminergic cells: Indirect mediation through reticulata inhibitory neurons
Grace A, Bunney B. Paradoxical GABA excitation of nigral dopaminergic cells: Indirect mediation through reticulata inhibitory neurons. European Journal Of Pharmacology 1979, 59: 211-218. PMID: 527646, DOI: 10.1016/0014-2999(79)90283-8.Peer-Reviewed Original ResearchConceptsZona reticulataGABA agonistsGABAergic inputsZona compactaSubstantia nigraLow dosesCell activitySingle-unit recording techniquesNigral dopaminergic cellsInhibitory GABAergic inputMeans of microiontophoresisPopulations of neuronsCell firing rateGABA excitationExcitatory effectsDopaminergic neuronsDopaminergic cellsInhibitory neuronsSame doseElectrophysiological studiesNeuron activityZR cellsFiring rateNeuronsAgonistsDopamine Auto- and Postsynaptic Receptors: Electrophysiological Evidence for Differential Sensitivity to Dopamine Agonists
Skirboll L, Grace A, Bunney B. Dopamine Auto- and Postsynaptic Receptors: Electrophysiological Evidence for Differential Sensitivity to Dopamine Agonists. Science 1979, 206: 80-82. PMID: 482929, DOI: 10.1126/science.482929.Peer-Reviewed Original ResearchConceptsDopamine autoIntravenous apomorphineDopamine agonistsPostsynaptic receptorsCentral nervous systemSubstantia nigraDopaminergic cellsDifferential sensitivityDopamine cellsDopaminergic influenceCaudate nucleusLarge dosesCaudate cellsNervous systemActive neuronsBehavioral effectsElectrophysiological evidenceApomorphineAgonistsParadoxical behavioural effectsReceptorsDopamineCellsNeuronsDoses
1978
d-Amphetamine-induced depression of central dopamine neurons: Evidence for mediation by both autoreceptors and a striato-nigral feedback pathway
Bunney B, Aghajanian G. d-Amphetamine-induced depression of central dopamine neurons: Evidence for mediation by both autoreceptors and a striato-nigral feedback pathway. Naunyn-Schmiedeberg's Archives Of Pharmacology 1978, 304: 255-261. PMID: 714182, DOI: 10.1007/bf00507966.Peer-Reviewed Original ResearchConceptsDA cellsSubstantia nigraFeedback pathwaysCentral dopamine neuronsIntravenous d-amphetamineNon-convulsant dosesPicrotoxin-treated animalsKainic acid injectionRelease of GABAActivity of dopamineNon-lesioned animalsSingle-cell recordingsDA autoreceptorsDendrodendritic synapsesMicroiontophoretic techniquesAfferent terminalsDepressant effectUnlesioned animalsDopamine neuronsGABA antagonistsAnesthetized ratsD-amphetamineCaudate nucleusAcid injectionHigh doses
1977
Dopamine “Autoreceptors”: Pharmacological characterization by microiontophoretic single cell recording studies
Aghajanian G, Bunney B. Dopamine “Autoreceptors”: Pharmacological characterization by microiontophoretic single cell recording studies. Naunyn-Schmiedeberg's Archives Of Pharmacology 1977, 297: 1-7. PMID: 193046, DOI: 10.1007/bf00508803.Peer-Reviewed Original ResearchConceptsDA neuronsDepressant effectDA agonist apomorphineWeak depressant actionSingle-cell recording studiesSingle-cell recordingsAgonist apomorphineDA agonistsMicroiontophoretic applicationMicroiontophoretic techniquesSubstantia nigraDepressant actionDopamine neuronsSingle dopamine neuronsPharmacological characterizationCatecholamine receptorsΒ-adrenoreceptorsCell recordingsCatecholamine agonistsRecording studiesNeuronsAutoreceptorsAntagonist trifluoperazineAgonistsSelective responsiveness