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dc.contributor.authorWhaley, Meagan Lee
dc.date.accessioned 2018-06-19T17:49:55Z
dc.date.available 2018-06-19T17:49:55Z
dc.date.issued 2015-11
dc.identifier.citation Whaley, Meagan Lee. "Dynamics of Brain Networks During Reading." (2015) https://hdl.handle.net/1911/102240.
dc.identifier.urihttps://hdl.handle.net/1911/102240
dc.descriptionThis work was also published as a Rice University thesis/dissertation: http://hdl.handle.net/1911/88427
dc.description.abstract We recorded electrocorticographic (ECoG) data from 15 patients with intractable epilepsy during a word completion task to precisely describe the spatiotemporal brain dynamics underlying word reading. Using a novel technique of analyzing grouped ECoG, cortical regions distributed throughout the left hemisphere were identified as significantly active versus baseline during our word stem completion task. Regions of activity spread from fusiform to frontal regions, including pars opercularis, pars triangularis, and pre, post, and subcentral gyri during the time period approaching articulation onset. The ECoG data recorded from electrodes within these regions were fit into linear multivariate autoregressive models, which precisely reveal the time, frequency, and magnitude of information ow between localized brain regions. Grouped network dynamics were quantified with two metrics of evaluating statistical significance of post-stimulus interactions compared to baseline. Results from both methods reveal bidirectional exchanges between frontal regions with fusiform, supporting theories which incorporate top-down and bottom-up processing during single word reading.
dc.format.extent 74 pp
dc.title Dynamics of Brain Networks During Reading
dc.type Technical report
dc.date.note November 2015
dc.identifier.digital TR15-11
dc.type.dcmi Text


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