causal functionalism
 
 
The view that a physical system realizes a mental state not in virtue of the particular stuff it is made of but instead in virtue of the causal relations that parts of that system bear to each other. See functionalism(1), functionalism(2).
 

Details:
 
One of the key ideas behind causal functionalism is that a physical system realizes a mental state not in virtue of the particular stuff it is made of but instead in virtue of the causal relations that parts of that system bear to each other. A popular way to pump the intuition that all that needs to be kept constant about a subject to keep the subject's mental properties constant is the set of causal relational properties of the subject is what has come to be known as "the silicon chip replacement" thought experiment.
 
 
Pete Mandik