2013
The role of top-down control in different phases of a sensorimotor timing task: a DCM study of adults and adolescents
Witt ST, Stevens MC. The role of top-down control in different phases of a sensorimotor timing task: a DCM study of adults and adolescents. Brain Imaging And Behavior 2013, 7: 260-273. PMID: 23475755, PMCID: PMC3743949, DOI: 10.1007/s11682-013-9224-5.Peer-Reviewed Original ResearchConceptsPrefrontal cortexLow-level sensorySignificant maturational effectsVentrolateral prefrontal cortexDynamic causal modelingInternal clock mechanismFinger-tapping taskCognitive controlSensorimotor timingBehavioral accuracyAuditory cuesTiming taskFMRI studyBaseline connectivitySensory regionsCognitive functionDCM studySensory stimuliCausal modelingAuditory cortexMotor regionsCuesBrain regionsAccurate performanceMotor control
2006
Functional neural circuits for mental timekeeping
Stevens MC, Kiehl KA, Pearlson G, Calhoun VD. Functional neural circuits for mental timekeeping. Human Brain Mapping 2006, 28: 394-408. PMID: 16944489, PMCID: PMC6871423, DOI: 10.1002/hbm.20285.Peer-Reviewed Original ResearchConceptsTiming taskFrontostriatal networkDifferent information processing stagesFunctional magnetic resonance imaging (fMRI) dataInformation processing stagesInformation processing modelPutamen/globus pallidusBilateral anterior insulaInterval timing taskSuperior temporal gyrusHemodynamic signal changesDistinct neural circuitsNeural circuitsPerformance of tasksIndependent component analysisAnterior cingulate gyrusSupplementary motor areaAnterior insulaFrontostriatal circuitsSupramarginal gyrusNeurobiological substratesTemporal gyrusMagnetic resonance imaging dataProcessing modelFunctional connectivity