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 roleFunctional Coupling between the Prefrontal Cortex and Dopamine Neurons in the Ventral Tegmental Area
Gao M, Liu C, Yang S, Jin G, Bunney B, Shi W. Functional Coupling between the Prefrontal Cortex and Dopamine Neurons in the Ventral Tegmental Area. Journal Of Neuroscience 2007, 27: 5414-5421. PMID: 17507563, PMCID: PMC6672349, DOI: 10.1523/jneurosci.5347-06.2007.Peer-Reviewed Original ResearchConceptsVentral tegmental areaVTA DA neuronsDA neuronsPrefrontal cortexPFC neuronsDopamine neuronsTegmental areaAction potential-dependent DA releaseSlow oscillationsChloral hydrate-anesthetized ratsIntra-PFC infusionsFunctional couplingPFC terminalsVTA DAGlutamate releaseDA releaseExcitatory influenceRelay neuronsInhibitory influenceCell activityBrain functionNeuronsImportant new insightsCortexMultiple pathwaysClozapine Blocks D-Amphetamine-Induced Excitation of Dopamine Neurons in the Ventral Tegmental Area
Shi W, Zhang X, Pun C, Bunney B. Clozapine Blocks D-Amphetamine-Induced Excitation of Dopamine Neurons in the Ventral Tegmental Area. Neuropsychopharmacology 2007, 32: 1922-1928. PMID: 17299514, DOI: 10.1038/sj.npp.1301334.Peer-Reviewed Original ResearchConceptsD2-like receptorsDA neuronsVentral tegmental areaD-amphetamineDA receptorsExcitatory effectsTegmental areaΑ1 receptor antagonist prazosinAtypical antipsychotic drug clozapineChloral hydrate-anesthetized ratsTypical antipsychotic drug haloperidolCentral dopamine transmissionCurrent antipsychotic drugsReceptor antagonist prazosinAntipsychotic drug haloperidolAntipsychotic drug clozapineAntagonist prazosinExcitatory pathwaysDA transmissionDopamine neuronsΑ1 receptorsSystemic administrationAntipsychotic drugsExcitatory inputsIncomplete blockade
2000
Dual Effects of d-Amphetamine on Dopamine Neurons Mediated by Dopamine and Nondopamine Receptors
Shi W, Pun C, Zhang X, Jones M, Bunney B. Dual Effects of d-Amphetamine on Dopamine Neurons Mediated by Dopamine and Nondopamine Receptors. Journal Of Neuroscience 2000, 20: 3504-3511. PMID: 10777813, PMCID: PMC6773133, DOI: 10.1523/jneurosci.20-09-03504.2000.Peer-Reviewed Original ResearchConceptsD2-like receptorsD-amphetamineDA cellsSelective D2 antagonist racloprideVivo single-unit recordingsFiring rateAlpha-antagonist phenoxybenzamineAlpha1-antagonist prazosinAlpha2 antagonist idazoxanD2 antagonist racloprideDA cell firingSingle-unit recordingsRelated psychostimulantsAntagonist idazoxanAntagonist phenoxybenzamineDA receptorsAntagonist prazosinAntagonist racloprideExcitatory effectsAlpha1 receptorsDopamine neuronsDopamine releaseCell firingInhibitory effectReceptorsAnatomic basis of sequence‐dependent predictability exhibited by nigral dopamine neuron firing patterns
Hoffman R, Shi W, Bunney B. Anatomic basis of sequence‐dependent predictability exhibited by nigral dopamine neuron firing patterns. Synapse 2000, 39: 133-138. PMID: 11180500, DOI: 10.1002/1098-2396(200102)39:2<133::aid-syn4>3.0.co;2-k.Peer-Reviewed Original Research
1999
Endogenous DA‐mediated feedback inhibition of DA neurons: Involvement of both D1‐ and D2‐like receptors
Shi W, Pun C, Smith P, Bunney B. Endogenous DA‐mediated feedback inhibition of DA neurons: Involvement of both D1‐ and D2‐like receptors. Synapse 1999, 35: 111-119. PMID: 10611636, DOI: 10.1002/(sici)1098-2396(200002)35:2<111::aid-syn3>3.0.co;2-7.Peer-Reviewed Original ResearchConceptsDA neuronsLike receptorsDA cellsEndogenous DAChloral hydrate-anesthetized ratsNigral DA cellsD2-like receptorsSingle-unit recordingsCerveau isolé preparationFeedback inhibitionParkinsonian animalsAntagonist racloprideAntagonist SCH23390DA releaseEndogenous dopamineD-amphetamineParkinson's diseaseUnit recordingsSCH23390Receptor activationBaseline activityReceptorsChloral hydrateNeuronsConcurrent activation
1997
D1–D2 Interaction in Feedback Control of Midbrain Dopamine Neurons
Shi W, Smith P, Pun C, Millet B, Bunney B. D1–D2 Interaction in Feedback Control of Midbrain Dopamine Neurons. Journal Of Neuroscience 1997, 17: 7988-7994. PMID: 9315916, PMCID: PMC6793911, DOI: 10.1523/jneurosci.17-20-07988.1997.Peer-Reviewed Original ResearchConceptsD2-like receptorsDA cellsDA autoreceptorsDA neuronsD1 agonistLow dosesDopamine D1-like receptorsD1 inhibitionD1 effectNigral DA cellsMidbrain DA neuronsD2 agonist quinpiroleD1-like receptorsDA receptor subtypesMidbrain dopamine neuronsOnly low dosesDA receptorsEndogenous DAAgonist quinpiroleD2 agonistIntranigral applicationDopamine neuronsReceptor subtypesRat preparationTarget neuronsCharacterization 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 lesionNeuronsRatsActivityCortexChronic morphine induces visible changes in the morphology of mesolimbic dopamine neurons.
Sklair-Tavron L, Shi W, Lane S, Harris H, Bunney B, Nestler E. Chronic morphine induces visible changes in the morphology of mesolimbic dopamine neurons. Proceedings Of The National Academy Of Sciences Of The United States Of America 1996, 93: 11202-11207. PMID: 8855333, PMCID: PMC38308, DOI: 10.1073/pnas.93.20.11202.Peer-Reviewed Original ResearchConceptsVTA dopamine neuronsVentral tegmental areaChronic morphine treatmentDopamine neuronsMorphine treatmentBrain regionsBrain-derived neurotrophic factorIntra-VTA infusionMorphine-treated ratsOpioid receptor antagonistChronic opiate exposureMesolimbic dopamine neuronsFluorescent dye Lucifer yellowMesolimbic dopamine functionMesolimbic dopamine systemImportant neural substrateDye Lucifer yellowNondopaminergic neuronsVTA neuronsChronic morphineOpiate exposureConcomitant treatmentDopaminergic neuronsNeurotrophic factorReceptor antagonist
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
1993
Depolarization inactivation of dopamine neurons: Terminal release characteristics
Moghaddam B, Bunney B. Depolarization inactivation of dopamine neurons: Terminal release characteristics. Synapse 1993, 14: 195-200. PMID: 8105547, DOI: 10.1002/syn.890140302.Peer-Reviewed Original ResearchConceptsExtracellular dopamine levelsChronic haloperidol treatmentDopamine levelsHaloperidol treatmentExtracellular levelsPerfusion of tetrodotoxinExcitatory amino acidsStriatal extracellular levelsVehicle-treated animalsExtracellular glutamate levelsHaloperidol-treated animalsMedial forebrain bundleStriatal dopamine systemGroups of animalsExogenous antagonistsChronic haloperidolChronic treatmentDepolarization inactivationExcitatory actionBasal outflowDopamine neuronsGlutamate levelsImpulse flowForebrain bundleMicrodialysis technique
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
Effects of neurotensin on midbrain dopamine neurons: Are they mediated by formation of a neurotensin—dopamine complex?
Shi W, Bunney B. Effects of neurotensin on midbrain dopamine neurons: Are they mediated by formation of a neurotensin—dopamine complex? Synapse 1991, 9: 157-164. PMID: 1776128, DOI: 10.1002/syn.890090302.Peer-Reviewed Original ResearchConceptsEffects of neurotensinNeurotensin receptorsDopamine neuronsDopamine cellsCell activitySingle-unit recording techniquesFiring rateMidbrain dopamine neuron activityAction of neurotensinBasal firing rateDopamine receptor blockadeDopamine-induced inhibitionDopamine neuron activityMidbrain dopamine neuronsReceptor blockadeDepolarization inactivationExcitatory effectsNative neurotensinBrain slicesNeuron activityNeurotensinNeurotensin analoguesSame receptorRecording techniquesReceptorsMidbrain dopamine system electrophysiological functioning: A review and new hypothesis
Bunney B, Chiodo L, Grace A. Midbrain dopamine system electrophysiological functioning: A review and new hypothesis. Synapse 1991, 9: 79-94. PMID: 1821487, DOI: 10.1002/syn.890090202.Peer-Reviewed Original ResearchRepetitive 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
1990
Neurotensin attenuates dopamine D2 agonist quinpirole-induced inhibition of midbrain dopamine neurons
Shi W, Bunney B. Neurotensin attenuates dopamine D2 agonist quinpirole-induced inhibition of midbrain dopamine neurons. Neuropharmacology 1990, 29: 1095-1097. PMID: 1982340, DOI: 10.1016/0028-3908(90)90119-c.Peer-Reviewed Original ResearchConceptsD2 agonistDA cellsSingle-unit recording techniquesMidbrain DA neuronsCentral DA systemsDopamine D2 agonistMidbrain dopamine neuronsSpecific D2 agonistDA neuronsIntracerebroventricular administrationDopamine neuronsSpontaneous activityDA systemInhibitory effectRecording techniquesAgonistsNeuronsBiochemical studiesCellsQuinpiroleNeurotensinRatsAdministrationA simple and effective method for preventing the formation of salt bridges between barrels of a multibarrel microiontophoresis electrode
Shi W, Bunney B. A simple and effective method for preventing the formation of salt bridges between barrels of a multibarrel microiontophoresis electrode. Journal Of Neuroscience Methods 1990, 35: 89-91. PMID: 2277537, DOI: 10.1016/0165-0270(90)90098-z.Peer-Reviewed Original Research
1989
The effect of acute and chronic treatment with SCH 23390 on the spontaneous activity of midbrain dopamine neurons
Esposito E, Bunney B. The effect of acute and chronic treatment with SCH 23390 on the spontaneous activity of midbrain dopamine neurons. European Journal Of Pharmacology 1989, 162: 109-113. PMID: 2656273, DOI: 10.1016/0014-2999(89)90609-2.Peer-Reviewed Original ResearchConceptsSubstantia nigra pars compactaVentral tegmental areaActive DA neuronsSCH 23390Chronic treatmentDA neuronsDopamine neuronsDepolarization blockSpontaneous activityDA receptor blockadeAcute subcutaneous injectionGroups of ratsMidbrain dopamine neuronsChronic haloperidolReceptor blockadeChronic administrationPars compactaTegmental areaAntipsychotic drugsSubcutaneous injectionChronic experimentsMarked reductionNeuronsTreatmentHaloperidol
1988
Effects of Acute and Chronic Neuroleptic Treatment on the Activity of Mid brain Dopamine Neuronsa
BUNNEY B. Effects of Acute and Chronic Neuroleptic Treatment on the Activity of Mid brain Dopamine Neuronsa. Annals Of The New York Academy Of Sciences 1988, 537: 77-85. PMID: 2904786, DOI: 10.1111/j.1749-6632.1988.tb42097.x.Peer-Reviewed Original ResearchConceptsAD administrationDA releaseDA cell activityChronic neuroleptic treatmentMidbrain DA neuronsRelease of DAEffects of AcuteNeurological side effectsDA neuronsNeuroleptic treatmentAcute effectsNerve terminalsSpontaneous activitySide effectsCell activityMarked increaseAdministrationProjection areaPrimary effectReleaseAcuteMarked effectNeuronsActivityBiochemical techniques