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Fractionating Executive Control in the Human Brain: A Within-Subjects fMRI Study

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dc.contributor.advisorTurner, Gary
dc.creatorLemire-Rodger, Sabrina
dc.date.accessioned2015-08-28T14:54:55Z
dc.date.available2015-08-28T14:54:55Z
dc.date.copyright2014-09-10
dc.date.issued2015-08-28
dc.date.updated2015-08-28T14:54:55Z
dc.degree.disciplinePsychology (Functional Area: Clinical Psychology)
dc.degree.levelMaster's
dc.degree.nameMA - Master of Arts
dc.description.abstractExecutive control processes have been found to cluster around three factors: updating, inhibition and task switching. However, few studies have directly investigated the fractionation of executive control in the brain, and none have examined convergent and divergent patterns of neural activity for all three using matched tasks in a single scanning protocol. Using a novel paradigm that manipulates executive control demands while keeping other task demands constant, we directly assessed the dissociability of the neural correlates of updating, inhibition and task switching. Our analyses revealed diverse patterns of brain activity associated with each executive control process. Though several interpretations of the data are considered, our results provide strong evidence that executive functions are dissociable at the level of the brain.
dc.identifier.urihttp://hdl.handle.net/10315/29884
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectNeurosciences
dc.subjectCognitive psychology
dc.subjectPsychology
dc.subject.keywordsExecutive functioning
dc.subject.keywordsExecutive function
dc.subject.keywordsCognitive control
dc.subject.keywordsFrontal lobes
dc.subject.keywordsCognitive neuroscience
dc.subject.keywordsUpdating
dc.subject.keywordsWorking memory
dc.subject.keywordsInhibition
dc.subject.keywordsTask switching
dc.subject.keywordsShifting
dc.subject.keywordsFunctional magnetic resonance imaging
dc.subject.keywordsfMRI
dc.subject.keywordsPartial Least Squares
dc.subject.keywordsPLS
dc.subject.keywordsNeural networks
dc.titleFractionating Executive Control in the Human Brain: A Within-Subjects fMRI Study
dc.typeElectronic Thesis or Dissertationen_US

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