Babies develop about 80% of their brain growth over the first two years of life, and it's also when all the connections in the brain, what we call the white matter, which is the cables in the brain, grow and develop and connect to the cortex.
Cerebral Palsy affects body movement, muscle control, muscle coordination, muscle tone, reflex, posture and balance. Depending on the part of the brain that is injured depends on how someone’s muscle tone will be effected. For people with spastic CP they have increased muscle tone because of the part of the brain that's injured. If causes very tight muscles which in turn effects the movement of the joints and of the limbs. For others who have dyskinetic CP they lose the ability to have voluntary control over their muscles, and they can have jerky and uncontrolled movement patterns.
A lot of parents don't realize that their baby, all the skills that they have. So they can look at you, they can follow you. They're already starting to imitate you, and through the first few months of life, they're already starting to learn to reach and grasp toys, and to have nonverbal communication with you.