Perception is closely linked with the near sense experience of the three dimensional world. This explains why vision receives such stimulation when the baby begins to move. The experience of objects, the experience of moving in space, and vision, all reinforce each other. Vision provides the major feedback in this process and so the child's self-awareness develops. At the same time object consciousness grows and the nature and possibility of things around the child become clear.
Vision also has an important role to play in establishing relationships .
Through eye contact, facial expression, etc, the bonding between baby and mother or father grows. This lays the foundation for the future development of language and communication . Babbling has been shown to increase in proportion to the frequency and variety of sounds in the child's environment, especially in response to vocalisation by the mother. Reciprocal babbling is a two-way exchange of vocalisation, when parent and child take turns. It is a strong reinforcer for the child and another foundation for language and speech.