4 November 2015 Last updated at 15:30 GMT
Robots, costing £100,000, which can speak, cry, sweat and have seizures are controlled by a human to simulate a real emergency.
BBC London's health correspondent Karl Mercer spoke to Dr Lola Olakunbi, junior doctor Sara Maki and medical trainer Dr Ritu Gupta.
A new form of "patient" has been introduced at a west London hospital to help train the next generation of doctors.