(from the Greek eidos – image, form, appearance, essence) is the ability to voluntarily evoke and retain vivid mental images, sensuously identical to visual images of the perceived.The phenomenon was first described by the Serbian scientist V. Urbantschitch in 1907. Eidetic images are also called subjective visual images, sensorialized representations. In contrast to perceptual images, a person continues to perceive eidetic images in the absence of an image source. Eidetic images are able to change and move at the will of the individual, they are not exact copies of what is perceived. Often they are reproduced from memory even after a long time. Eidetic images can be visual, auditory, olfactory, gustatory, and so on.