Visual constancy refers to the tendency to perceive a stimulus as remaining constant despite any changes to the retinal image.
As we move around, the images that are cast on each retina are constantly changing. despite this, we usually perceive the world around us as a fairly stable place.
As we move around, the images that are cast on each retina are constantly changing. despite this, we usually perceive the world around us as a fairly stable place.
Size constancy refers to the visual angle in which an individual perceives distance. The more distant a person is, the smaller the retinal image is. For example, a person who isstanding 10 m away from a person will look smaller and thus be a smaller image on the retina.
Shape constancy refers to the ability to perceive an image, which retains its shape although the retinal image may have changed.
Brightness constancy is the ability to perceive an image/object, whilst keeping the original brightness (even if the brightness levels entering the eye may change/differ).
Orientation constancy is the ability to perceive the true position of an image, despite the orientation of the object in the retina.