Dynamics of Brain Networks During Reading

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dc.contributor.authorWhaley, Meagan Lee
dc.date.accessioned2018-06-19T17:49:55Z
dc.date.available2018-06-19T17:49:55Z
dc.date.issued2015-11
dc.date.noteNovember 2015
dc.descriptionThis work was also published as a Rice University thesis/dissertation: http://hdl.handle.net/1911/88427
dc.description.abstractWe 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.extent74 pp
dc.identifier.citationWhaley, Meagan Lee. "Dynamics of Brain Networks During Reading." (2015) <a href="https://hdl.handle.net/1911/102240">https://hdl.handle.net/1911/102240</a>.
dc.identifier.digitalTR15-11
dc.identifier.urihttps://hdl.handle.net/1911/102240
dc.language.isoeng
dc.titleDynamics of Brain Networks During Reading
dc.typeTechnical report
dc.type.dcmiText
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