When the brain receives the sensory information, it automatically interprets those. Some psychologists prefer to call the dual process of sensation and perception as a unified information processing system or the perceptual system. Perception is a receptive, selective, symbolic, and affective process.
What is it? Silicon dioxide (SiO2), or silica, is known in nature as sand or quartz. It occurs naturally in the earthâs crust, and silicates are present in water, animals and plants. Silicates are also consumed as part of the natural human diet.
Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO 2.When used as a pigment, it is called titanium white, Pigment White 6 (PW6) , or CI 77891. Generally it is sourced from ilmenite, rutile and anatase.It has a wide range of applications, from paint to sunscreen to food colouring.itanium dioxide occurs in nature as the well-known minerals rutile, anatase and brookite, and additionally as two high pressure forms, a monoclinic baddeleyite-like form and an orthorhombic Î±-PbO2 -like form, both found recently at the Ries crater in Bavaria. It is mainly sourced from ilmenite ore.