1997
An fMRI study of the human cortical motor system response to increasing functional demands
Wexler B, Fulbright R, Lacadie C, Skudlarski P, Kelz M, Constable R, Gore J. An fMRI study of the human cortical motor system response to increasing functional demands. Magnetic Resonance Imaging 1997, 15: 385-396. PMID: 9223039, DOI: 10.1016/s0730-725x(96)00232-9.Peer-Reviewed Original ResearchConceptsMotor-sensory areasSupplementary motor areaFunctional magnetic resonance imagingPremotor areasMotor areaMultiple motor areasComplexity of movementCortical motor systemRight-hand finger movementsIndex finger movementsFinger movementsMagnetic resonance imagingInferior parietal areasConsistent lateralizationResonance imagingBrain regionsActivation changesMotor system responsesParietal areasHand finger movementsPreliminary reproducibility studyFMRI studySignificant main effectWeek periodGreater increase
1993
Functional brain imaging at 1.5 T using conventional gradient echo MR imaging techniques
Constable R, McCarthy G, Allison T, Anderson A, Gore J. Functional brain imaging at 1.5 T using conventional gradient echo MR imaging techniques. Magnetic Resonance Imaging 1993, 11: 451-459. PMID: 8316058, DOI: 10.1016/0730-725x(93)90463-n.Peer-Reviewed Original ResearchConceptsMotor cortexUse of MRMR imaging techniquesMotor areaEffects of activationNormal volunteersFrontal lobeVisual cortexMR imaging methodsBrain functionFunctional brainCortexExcellent depictionStimulus parametersVisual stimuliBrainGradient-echo imaging sequenceSignal changesImaging sequenceImaging techniquesSimilar responsesMsecActivationPhysiological responsesClinical scanner