Developmental changes in endogenous testosterone have sexually‐dimorphic effects on spontaneous cortical dynamics
Picci G, Ott L, Penhale S, Taylor B, Johnson H, Willett M, Okelberry H, Wang Y, Calhoun V, Stephen J, Wilson T. Developmental changes in endogenous testosterone have sexually‐dimorphic effects on spontaneous cortical dynamics. Human Brain Mapping 2023, 44: 6043-6054. PMID: 37811842, PMCID: PMC10619376, DOI: 10.1002/hbm.26496.Peer-Reviewed Original ResearchConceptsCortical activityRobust sex differencesFunctional brain developmentTypically-developing youthSpontaneous cortical activityLowest relative powerCortical dynamicsEndogenous testosteronePrefrontal cortexExecutive functionFrontal cortexPubertal hormonesNeural circuitryResting-stateStructural MRIEffects of testosteroneSex differencesEffects of endogenous testosteroneDevelopmental changesBrain developmentReverse patternBehavioral changesGamma activityDevelopmental windowDevelopmental patternsAuditory oddball hypoactivation in schizophrenia
Nakahara S, Male A, Turner J, Calhoun V, Lim K, Mueller B, Bustillo J, O'Leary D, Voyvodic J, Belger A, Preda A, Mathalon D, Ford J, Guffanti G, Macciardi F, Potkin S, Van Erp T. Auditory oddball hypoactivation in schizophrenia. Psychiatry Research Neuroimaging 2023, 335: 111710. PMID: 37690161, DOI: 10.1016/j.pscychresns.2023.111710.Peer-Reviewed Original ResearchConceptsSchizophrenia polygenic risk scoresFunctional magnetic resonance imagingPolygenic risk scoresCognitive performanceOddball targetsAssociated with cognitive performanceRight supramarginal cortexCognitive domain performanceBrain imaging studiesAuditory oddball taskPrecuneus activationSchizophrenia individualsFrontal poleSchizophreniaOddball taskBrain activityRight thalamusHippocampal cortexRegional activityHypoactivationSample 2Sample 1PrecuneusHealthy volunteersCross-sectional data setsGroup independent components underpin responses to items from a depression scale.
Stoyanov D, Khorev V, Paunova R, Kandilarova S, Kurkin S, Calhoun V. Group independent components underpin responses to items from a depression scale. Acta Neuropsychiatrica 2023, 36: 9-16. PMID: 37088536, DOI: 10.1017/neu.2023.22.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingGroup independent component analysisSelf-evaluation scaleFrontal gyrusCingulate cortexDepression ScaleRight superior frontal gyrusFunctional magnetic resonance imaging acquisitionHealthy controlsRight middle cingulate cortexAnterior cingulate cortexMiddle frontal gyrusSuperior frontal gyrusMiddle cingulate cortexIndependent component analysisGroup independent componentStatistical parametric mappingDepressive disorderDepressive episodeBrain circuitsBrain networksNeural network patternsDiagnostic conditionsParametric mappingGyrus