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

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dc.contributor.advisor Turner, Gary
dc.creator Lemire-Rodger, Sabrina
dc.date.accessioned 2015-08-28T14:54:55Z
dc.date.available 2015-08-28T14:54:55Z
dc.date.copyright 2014-09-10
dc.date.issued 2015-08-28
dc.identifier.uri http://hdl.handle.net/10315/29884
dc.description.abstract Executive 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.language.iso en
dc.rights Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subject Neurosciences
dc.subject Cognitive psychology
dc.subject Psychology
dc.title Fractionating Executive Control in the Human Brain: A Within-Subjects fMRI Study
dc.type Electronic Thesis or Dissertation en_US
dc.degree.discipline Psychology (Functional Area: Clinical Psychology)
dc.degree.name MA - Master of Arts
dc.degree.level Master's
dc.date.updated 2015-08-28T14:54:55Z
dc.subject.keywords Executive functioning
dc.subject.keywords Executive function
dc.subject.keywords Cognitive control
dc.subject.keywords Frontal lobes
dc.subject.keywords Cognitive neuroscience
dc.subject.keywords Updating
dc.subject.keywords Working memory
dc.subject.keywords Inhibition
dc.subject.keywords Task switching
dc.subject.keywords Shifting
dc.subject.keywords Functional magnetic resonance imaging
dc.subject.keywords fMRI
dc.subject.keywords Partial Least Squares
dc.subject.keywords PLS
dc.subject.keywords Neural networks

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