Vision Stimulation Each of the five senses is a doorway to your baby’s mind. Your newborn baby can hear your voice, feel your touch, smell your scent, and taste anything you put in his mouth. While baby’s vision may be one of the least developed senses at birth, visual input during the early months may have the most profound effect on baby’s developing nervous system. What exactly does this mean? Why is visual stimulation so important for a baby? How can you as a parent or caregiver best stimulate your newborn’s visual senses?