2022
Acute cannabis-related alterations in an fMRI time estimation task
Patel K, Stevens M, Adhikari S, Book G, Mubeen M, Pearlson G. Acute cannabis-related alterations in an fMRI time estimation task. 2022 DOI: 10.26828/cannabis.2022.02.000.26.Peer-Reviewed Original ResearchMedial temporal cortexPosterior cingulate cortexSomatosensory motor cortexPremotor cortexMotor cortexTemporal cortexMedial prefrontal cortexCingulate cortexFrontal cortexLong-duration stimuliAnterior cingulateInferior frontal cortexVisual cortexBrain activation differencesMultiple comparison correctionPlacebo conditionActivation differencesDuration stimuliPrefrontal cortexVisual areasOccipital junctionDose-related mannerMid-cingulate cortexSignificant activation differencesPopular recreational drug
2012
fMRI task parameters influence hemodynamic activity in regions implicated in mental set switching
Witt ST, Stevens MC. fMRI task parameters influence hemodynamic activity in regions implicated in mental set switching. NeuroImage 2012, 65: 139-151. PMID: 23079572, PMCID: PMC3523276, DOI: 10.1016/j.neuroimage.2012.09.072.Peer-Reviewed Original ResearchConceptsBrain regionsMagnetic resonance imaging studySecondary visual cortexResonance imaging studyFunctional magnetic resonance imaging studySensorimotor cortexFronto-parietal regionsAnterior prefrontal cortexAnterior cingulateVisual cortexImaging studiesFronto-parietal networkPrefrontal cortexHemodynamic activityCortexBrain activityComplex executive functionsStimulus complexityExecutive functionResponse complexityTrialsNon-switch trialsPrevious studies