Gabriella Kovalenko on Instagram: "Fix your gaze on the tiny cross. You’re placing the dots in peripheral vision, where the brain normally down-weights repetitive, low-value input. When fixation is steady, retinal and cortical neurons adapt to the unmoving purple and your opponent-color system generates a green afterimage. The expected “pass” looks like this: the purple ring fades, a single green dot seems to orbit, and your visual world feels quieter. That pattern reflects effective visual supp