Greenough, Black and Wallace (1987) determined two different neural pathways in newborns. The first, the experience-expectant system contains all the functions that a newborn needs to be able to survive its early life, including sucking, breathing and temperature regulation. These are present due to genetic programming. The second, the experience-dependant system is dormant at birth but develops and strengthens as learning and experience takes hold. This evidence makes a convincing argument for the influence of genetic and environmental influence on the development of a child. In many other developmental areas, children may be receive certain type of stimulation at one point in their lives but be able to get benefit from it to some degree later
