[throwitaway222]

The other thing to realize is that the brain's available neuro-chemicals are different in different people. For example there exists people where you could kill their mom, but as long as you replaced it with a sufficiently similar person that provides the exact same services, the child would not be sad - all the services would exist and therefor the atomaton human would operate normally. I've seen this in both autistic and non-autistic persons. The bigger issue with that person being capable of handling the change in their life is how other people push emotional baggage onto them. (For example telling people how they should feel - doesn't make them feel it, but rather makes them feel wrong and then the sadness comes)

In other words we have described emotions that we attribute to all people, but the reality is, not all people have the same emotions - they are some idealised state - and in reality everyone is very different in their emotional capabilities.