The phenomenon of visual sensations persisting after the initial stimulus has been removed is a well-documented aspect of visual perception. This perceptual experience, often following exposure to a bright light or intensely colored object, results in a lingering impression. A common example is observing a spot of light even after turning off the light source, or briefly perceiving the complementary color of an object immediately after averting one’s gaze.
This visual aftereffect plays a significant role in illustrating the workings of the visual system and the processes of sensory adaptation. Understanding this phenomenon provides valuable insight into the mechanisms by which photoreceptors in the retina respond to and recover from stimulation. Historically, the study of these effects has contributed to the development of theories about color vision and neural processing, informing our understanding of how the brain constructs a stable and consistent visual world.
