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Artificial scotoma. (A) 3 × 8 dartboard stimulus was displayed, with a 10° × 10° region on the right side of the screen covered with an opaque patch. The subject fixated over 155 4 s trials. The trace array is shown in A, with the dotted square indicating the approximate position of the scotoma, which actually moved across the retina with eye movements. Red traces are from the right eye, blue from the left eye; (B) Parameter plots, showing the effects of the scotoma.
