At the heart of imitation is understanding the difference between yourself and others - something that famous Swiss child psychologist JeanPiaget thought didn't emerge immediately in infants.
In one famous case, the Swiss psychologist JeanPiaget had vivid memories of being kidnapped at age 2 in Paris, complete with the kidnappers scratching his nurse's face.
The backdrop to today's research on kids and advertising is the cognitive theory put forward over 70 years ago by the famous Swiss psychologist JeanPiaget.