After Image
Instructions: Stare at the black spot in the center of the four colored squares for about 30 seconds. Then scroll down and move your gaze to the black spot in the uniform white area. Note the colors of the afterimages relative to the colors of the original stimuli. Did they appear different?
殘象
說明:盯著四個色塊中間的黑點看30秒,然后再盯著下面白色區域中的黑點兒看會兒,上一幅的殘像會映在下一幅上,你是不是也發現了?