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Retinal position effect showing stimulus response changes as a function of retinal position.

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posted on 2013-02-21, 07:52 authored by Sidney R. Lehky, Xinmiao Peng, Carrie J. McAdams, Anne B. Sereno

A. Distribution of position selectivity index (SI) for 3-position task. Larger values indicate greater selectivity. Mean SI for significant cells is indicated. B. Distribution of position selectivity index for 8-position task. C. Time course of responses at best and worst locations for 3-position task, averaged over all significant cells. Data included from the most effective shape for each cell. Trials were aligned on stimulus onset (zero time). Gray zone indicates stimulus period shifted by neural latency, the time epoch used for ANOVA. Horizontal error bars shows standard deviation of stimulus-off time and of stimulus-off time shifted by neural latency. Curves smoothed using a 10 ms Gaussian kernel. D. Time course of responses at best and worst positions for 8-position task. Gray zone indicates the period from stimulus start until saccade onset shifted by neural latency, used for ANOVA. Horizontal error bars indicate standard deviation of saccade onset time and of saccade onset time shifted by neural latency.

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