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Lab1feedback - Vision Science III Ocula r mo tility and...

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Vision Science III – Ocular motility and binocular vision Lab 1 Feedback Experiment 1. Locating the egocenter -80 -60 -40 -20 0 20 40 -60 -40 -20 0 20 40 60 Egocenters 2007 Egocenter y Egocenter x mean (x, y) = (+1.8, -12.4) Dominant eye -80 -60 -40 -20 0 20 40 -60 -40 -20 0 20 40 60 Egocenters 2006 Egocenter y Egocenter x mean (x,y) = (+2.3, -13.2) Figure 1. L. Distribution of egocenters for the class, scaled to a PD=64 and with dominant eye flipped, as needed to make OD dominant. R. Last year’s plot shown for comparison. Comments: Egocenters were distributed near the midline, but some were in front, some between and some behind the eyes. Mean location (x,y) = (+1.8,-12.4). One outlier (BS) was removed. The mean results was within 1 mm of last year’s mean. There was a slight skew toward the dominant eye. Note the importance of recording data with the correct sign convention. Experiment 2. Ocular orientation and perceived binocular direction Recall that binocular visual direction (egocentric visual direction) is determined by Retinal location (oculocentric direction) and
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