Sensory, Attentional And Perceptual Processes — Psychology STD 11 Humanities — Question

Sense organs function with certain limitations. For example our eyes cannot see things which are very dim or very bright. Similarly our ears cannot hear very faint or very loud sounds. The same is true for other organs also. As human beings, we function within a limited range of stimulation. For being noticed by a sensory receptor a stimulus has to be of an optimal intensity or magnitude.