The Laerdal Medical Corporation produces simulated babies for medical training. Controlled by a PC, these models can simulate breathing, heartbeat, and pulse. Their bodies are realistic enough for injections to be made, and they can cry, cough, have spasms, etc.
According to press reports, a simulated adult costs between $6,500 and $35,000, depending on options. The Laerdal website doesnt give prices for babies.
The degree of realism is such that, although it is possible for the controller to make the model die, this is rarely done because it has an emotional impact on the trainee medical staff.