2017
Interactive effects of an N-methyl-d-aspartate receptor antagonist and a nicotinic acetylcholine receptor agonist on mismatch negativity: Implications for schizophrenia
Hamilton HK, D'Souza DC, Ford JM, Roach BJ, Kort NS, Ahn KH, Bhakta S, Ranganathan M, Mathalon DH. Interactive effects of an N-methyl-d-aspartate receptor antagonist and a nicotinic acetylcholine receptor agonist on mismatch negativity: Implications for schizophrenia. Schizophrenia Research 2017, 191: 87-94. PMID: 28711472, PMCID: PMC5745273, DOI: 10.1016/j.schres.2017.06.040.Peer-Reviewed Original ResearchConceptsNicotinic acetylcholine receptor agonistAcetylcholine receptor agonistReceptor agonistHealthy volunteersN-methyl-D-aspartate receptor antagonistPathophysiology of schizophreniaAuditory processing abnormalitiesProfile of effectsMMN amplitudeNicotine preventsNicotine administrationReceptor hypofunctionNMDAR hypofunctionNMDAR antagonistsReceptor antagonistMismatch negativity (MMN) event-related potential (ERP) componentPresent doseNicotinic agonistsSchizophrenia patientsCigarette useKetamineDeviant typesNeurophysiological effectsSecondary analysisMMN abnormalities
2014
Effects of Nicotine on the Neurophysiological and Behavioral Effects of Ketamine in Humans
Mathalon DH, Ahn KH, Perry EB, Cho HS, Roach BJ, Blais RK, Bhakta S, Ranganathan M, Ford JM, D’Souza D. Effects of Nicotine on the Neurophysiological and Behavioral Effects of Ketamine in Humans. Frontiers In Psychiatry 2014, 5: 3. PMID: 24478731, PMCID: PMC3900858, DOI: 10.3389/fpsyt.2014.00003.Peer-Reviewed Original ResearchAuditory event-related brain potentialsEvent-related brain potentialsTest sessionsBehavioral effectsAmplitude of P3aDissociative Symptoms ScaleNicotinic acetylcholine receptor stimulationBrain potentialsP3b amplitudeMMN amplitudeP3a amplitudeNovel stimuliNeurophysiological measuresNMDA receptor hypofunctionN-methyl-D-aspartate (NMDA) receptor hypofunctionNegative Syndrome ScaleEffects of nicotineReceptor hypofunctionNeurocognitive impairmentCounterbalanced mannerP3aSchizophrenia-like effectsSyndrome ScaleInjections of nicotineInteraction of ketamine
2011
Glutamatergic Modulation of Auditory Information Processing in the Human Brain
Gunduz-Bruce H, Reinhart RM, Roach BJ, Gueorguieva R, Oliver S, D'Souza DC, Ford JM, Krystal JH, Mathalon DH. Glutamatergic Modulation of Auditory Information Processing in the Human Brain. Biological Psychiatry 2011, 71: 969-977. PMID: 22036036, PMCID: PMC3290754, DOI: 10.1016/j.biopsych.2011.09.031.Peer-Reviewed Original ResearchConceptsN-acetylcysteineAuditory mismatch negativityReceptor antagonistN-methyl-D-aspartate receptor antagonistAspartate glutamate receptor antagonistOral N-acetylcysteinePlacebo-controlled studyGlutamate receptor antagonistsEffects of ketamineInfusion of salineMismatch negativityTest dayMMN amplitudeCystine-glutamate exchangerAuditory information processingP300 event-related potentialGlutamatergic modulationCognitive enhancing agentsEvent-related potentialsKetamine effectsHealthy volunteersHealthy humansSchizophrenia patientsPositive symptomsKetamine