Apparent Motion Is Also Perceived By Varying Brightness And Colour. The

Apparent motion is also perceived by varying brightness and colour.
The features of animations contributing to apparent motions are threefold:
Time between projections of the separate displays
Light intensity of the displays, and
Spatial distance between each of the displays
Temporal and spatial distances and appearance times of images (for example images presented within short time or space) and the colour or light intensity of animated displays are all important in giving an illusion of motion within animation. Spatial orientation, spatial frequency, depth plane, colour, size, shape and texture of displays also impact the perception of apparent motion although these factors have very little significance in perception (Rieber and Kini, 1991)
Perception and memory are the two unique features and theoretical bases on which the identification of the instructional computer design is generally based. The separate images of a single object in motion are what make up the perception of motion. The brain (or the mind) seems to apply its own perceptual and organisational principles to give a meaningful pattern to separate images. Perceiving motion acts like a glue and brings several assemblages of images which are separate and help the brain to see a continuous moving pattern. Recent research has suggested that long range and short range apparent motion work in unison to bring about the perception of motion.
Apparent motion seems to be the basis of motion pictures, shown in television, films, laser discs and videotapes, in scoreboards, theatre screens and computer animation software. However motion perceived by the human brain is always in accordance with the universal physical laws and acts according to these principles. Motion perception is based on a perception that the physical world is guided by a basic set of rules and works in a coherent continuous fashion and is not random or disharmonic. So, in motion as in perception of the motion, producing and perceiving the optimum speed at which images are displayed whether in films, televisions, score screens or animation graphics, is very important. The temporal and spatial gaps which are filled by the perceiving brain to perceive continuity, have to be presented with extreme precision.
As Rieber writes, 'Successive discrete images are integrated to produce an apparently continuous visual environment' (1991, p.85). Apart from the fact that the human mind is capable of using visual information quite effective and sensitively, we have to point that the system of vision is the most well developed perceptual system within the human physiology. The faculty of vision being so highly developed and sophisticated in its workings, any computer base instruction based on a visual method of presentation is definitely superior to any other method.