Babies form permanent synaptic connections very early, so children who are not properly stimulated during their first year can be scarred forever.

Dogs are happiest and most balanced in overall behavior when their prey drive is properly stimulated and satisfied through play.

In fact, properly stimulated, they have a marked talent for tactical innovation.

The princess was now properly stimulated.

They also can stop performing well if not properly stimulated and rewarded for their efforts.

The part of the brain receiving images from the affected eye is not stimulated properly and does not develop to its full visual potential.

"Perhaps less time, if you are properly stimulated," she said.

Perhaps your child has indeed stared wondrously at the mobile and you have been reassured that his visual system has been properly stimulated.