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Previously, visual acuity thresholds for eccentric retinal points have been documented for targets that oscillate while the observer fixates a central point. This research describes the situation where the observer tracks a moving target in constant linear motion, thereby involving the pursuit and saccadic eye movements. The increase of visual acuity(More)
A small experimental, central scotoma significantly attenuates the human pattern visual evoked potential. The steady-state pattern visual evoked potential was recorded from seven visually normal adults who viewed a reversing checkerboard with 24′ checks and a central scotoma that varied in size and shape. We found that square scotomas had to be at least 3 ×(More)
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