Abstract
The data presented in this document was created to explore the effect of including or excluding word length, word frequency, the lexical predictability of function words and first pass reading time (or the duration of the first fixation on a word) as either baseline regressors or duration modulators on the final analysis for a fixation-related fMRI investigation of linguistic processing. The effect of these regressors was a central question raised during the review of Linguistic networks associated with lexical, semantic and syntactic predictability in reading: A fixation-related fMRI study [1]. Three datasets were created and compared to the original dataset to determine their effect. The first examines the effect of adding word length and word frequency as baseline regressors. The second examines the effect of removing first pass reading time as a duration modulator. The third examines the inclusion of function word predictability into the baseline hemodynamic response function. Statistical maps were created for each dataset and compared to the primary dataset (published in [1]) across the linguistic conditions of the initial dataset (lexical predictability, semantic predictability or syntax predictability).
Highlights
The effect of convolving word length, word frequency, function word predictability and first pass reading time in the analysis of a fixationrelated fMRI dataset
The data presented in this document was created to explore the effect of including or excluding word length, word frequency, the lexical predictability of function words and first pass reading time as either baseline regressors or duration modulators on the final analysis for a fixation-related fMRI investigation of linguistic processing
The effect of these regressors was a central question raised during the review of Linguistic networks associated with lexical, semantic and syntactic predictability in reading: A fixation-related fMRI study [1]
Summary
Forty-three participants were recruited from the student body at Brigham Young University. All were right-handed, literate and native English speakers with 20/20 uncorrected or corrected vision without a history of reading disorders. Two participants were excluded due to eye tracking problems or excess motion in the scanner, resulting in a total of 41 participants included in the final analysis. Informed consent was obtained from all individuals prior to participation. The study was approved by the Brigham Young University Institutional Review Board ethics committee to ensure it conformed with the recognized ethical standards of the Declaration of Helsinki [8]
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