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Bayesian estimation for saccade planning during reading| old_uid | 7585 |
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| title | Bayesian estimation for saccade planning during reading |
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| start_date | 2009/11/13 |
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| schedule | 11h-12h |
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| online | no |
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| summary | During reading, saccadic eye movements are needed to move words into the center of the visual field for lexical processing. Saccadic landing positions within words show a pronounced peak close to the word center with an additional
systematic error, which is modulated by the distance of the launch site and the
length of the target word (the launch site effect).
In my talk, I demonstrate that the systematic variation of fixation positions within words might be a consequence of Bayesian estimation. I present a mathematical model for the launch site effect, which makes explicit assumptions on underlying visual and oculomotor processes. Based on eye-movement recording, I show experimental results that are consistent with the
view that readers use Bayesian estimation for saccade planning.
Finally, I discuss the importance of mislocated fixations for the unbiased estimation of distributions of within-word landing positions. |
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| oncancel | ! un lundi |
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| responsibles | Pélissier |
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