
pmid: 30012507
In order to evaluate the effect of the parafoveal area of the retina on smooth pursuit, we compared the horizontal smooth pursuit of visible and amodally completed stimuli in people with central vision loss and controls. In the amodally completed stimuli, a black mask covered the bottom vertex of a moving diamond which is the feature whose movement participants had to track. Both the visible and the amodally completed stimuli moved along regular and irregular sinusoidal motion paths. Our results show that people with central vision loss are able to track a perceptually completed moving stimulus albeit with lower gain, larger tracking errors, and more saccadic eye movements than people with normal vision. Just as the controls, however, people with central vision do better in the no mask condition showing that visual feedback from eccentric vision can improve performance.
Adult, Aged, 80 and over, Male, Visual Acuity, Diagnostic Techniques, Ophthalmological, Middle Aged, Pursuit, Smooth, Macular Degeneration, Young Adult, Disease Progression, Humans, Female, Photic Stimulation, Aged
Adult, Aged, 80 and over, Male, Visual Acuity, Diagnostic Techniques, Ophthalmological, Middle Aged, Pursuit, Smooth, Macular Degeneration, Young Adult, Disease Progression, Humans, Female, Photic Stimulation, Aged
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