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Characterizing The Relationship Between Accented Speech Intelligibility And Listening Effort, Mel Mallard
Characterizing The Relationship Between Accented Speech Intelligibility And Listening Effort, Mel Mallard
Arts & Sciences Electronic Theses and Dissertations
Unfamiliar accents can make speech communication difficult, both by reducing speech intelligibility and by increasing the effort listeners must put forth to understand speech. However, these two constructs, while related, are independent: for example, two 100% intelligible utterances may require different amounts of effort to accurately process. To better characterize the relationship between intelligibility and effort, this study presents speakers of four intelligibility levels (one natively-accented English speaker, and three Mandarin-accented English speakers) within a dual-task paradigm (featuring a vibrotactile secondary task) to measure listening effort. We found a negative nonlinear relationship between intelligibility and effort, with the steepest slope …
Predictive Looking And Predictive Looking Errors In Everyday Activities, Sophie Su
Predictive Looking And Predictive Looking Errors In Everyday Activities, Sophie Su
Arts & Sciences Electronic Theses and Dissertations
People spontaneously segment continuous streams of experiences into distinct episodes. Prediction errors are theorized to drive segmentation. However, existing studies exploring the relationship between prediction error and event segmentation lack a continuous measure of prediction error during naturalistic perception and often fail to distinguish between prediction error and prediction uncertainty. Do moment-by-moment fluctuation of prediction errors, not prediction uncertainty during naturalistic event perception correlate positively with segmentation probabilities? To tackle this question, we harnessed the predictive nature of eye movements and introduced a predictive looking model. In this model, individuals’ prior gaze patterns act as predictors for critical features in …