Introduction
Newborns come into the world, fully possessing the ability to perceive the environmental signals and react to it. Babies can see and hear, smell and touch, feel pressure and pain. They can choose what to look at. They learn, although their abilities are limited. The first 2 years of development are characterized by astonishing speed and depth in comparison with changes in any other 2-year period of human life. There is an amazing transition from a deep ignorance about the surrounding objects, sounds and smells to gaining basic knowledge about objects and people, language and daily activities occur during ...
