What is it about?

We continuously shift our gaze to see fine details. This paper examines how our eye movements impact the time course of vision around the center of gaze during a high-acuity task. We recorded eye movements in human observers who were engaged in searching for "fleas" jumping in a patch of "fur," a task that resembles social grooming in primates.

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Why is it important?

This paper shows that vision at the very center of gaze undergoes drastic and rapid modulations every time we shift our gaze. Just before and during fast eye movements, observers could not see the fleas, even when they were looking directly at them. However, vision recovered quickly at the center of gaze and continued to improve so that vision was briefly enhanced after the eye movement, an effect that was not observed a small distance from where observers were looking.

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This page is a summary of: Fast and nonuniform dynamics of perisaccadic vision in the central fovea, Proceedings of the National Academy of Sciences, September 2021, Proceedings of the National Academy of Sciences, DOI: 10.1073/pnas.2101259118.
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