1985
Stress produces opioid-like effects on investigatory behavior
Arnsten A, Berridge C, Segal DS. Stress produces opioid-like effects on investigatory behavior. Pharmacology Biochemistry And Behavior 1985, 22: 803-809. PMID: 4011639, DOI: 10.1016/0091-3057(85)90531-3.Peer-Reviewed Original ResearchConceptsOpioid systemInvestigatory behaviorOpiate antagonist naloxoneOpioid-like effectsAntagonist naloxoneStress-induced reductionLocomotor hypoactivityOpiate agonistsNaive ratsLow dosesCharacteristic alterationsGreater reductionAverage timeNovel environmentRatsNumerous reportsBehavioral activityAlterationsExposureNaloxoneStressorsAgonistsHypoactivityDoses
1983
Naloxone augments electrophysiological signs of selective attention in man
Arnsten A, Segal D, Neville H, Hillyard S, Janowsky D, Judd L, Bloom F. Naloxone augments electrophysiological signs of selective attention in man. Nature 1983, 304: 725-727. PMID: 6888538, DOI: 10.1038/304725a0.Peer-Reviewed Original ResearchConceptsEndogenous opioid systemOpioid systemSelective attentionOpiate antagonist naloxoneSelective information processingNormal human subjectsAntagonist naloxoneOpiate antagonistElectrophysiological signsAuditory attentionOpioid roleElectrophysiological measuresGeneral arousalElectrophysiological evidenceInformation processingBehavioral functionsNaloxoneHuman subjectsSource of stimulusMenPrevious researchArousalAttentionAntagonist
1981
Evidence for an interaction of opioid and noradrenergic locus coeruleus systems in the regulation of environmental stimulus-directed behavior
Arnsten A, Segal DS, Loughlin SE, Roberts D. Evidence for an interaction of opioid and noradrenergic locus coeruleus systems in the regulation of environmental stimulus-directed behavior. Brain Research 1981, 222: 351-363. PMID: 7284783, DOI: 10.1016/0006-8993(81)91038-6.Peer-Reviewed Original ResearchConceptsOpiate agonist morphineNoradrenergic locus coeruleus systemOpiate antagonist naloxoneDorsal bundleSham-lesioned ratsLocus coeruleus systemLocus coeruleus activityStimulus contactStimulus interactionAgonist morphineAntagonist naloxoneOpioid roleInhibitory actionNaloxoneOpioidsReportParticular environmental stimuliMorphineLesionsRats