Functionalism

Functionalism is the doctrine that what makes something a thought, desire, pain (or any other type of mental state) depends not on its internal constitution, but solely on its function, or the role it plays, in the cognitive system of which it is a part. More precisely, functionalist theories take the identity of a mental state to be determined by its causal relations to sensory stimulations, other mental states, and behavior. 

Overview

Emile Durkheim: 


"The totality of beliefs and sentiments common to the average members of a society forms a determinate system with a life of its own. It can be termed the collective or creative consciousness." The Division of Labour (1893)

Malinowsky 

Radcliffe-Brown

Talcott Parsons


Example: Catholic Church. 1.2 billion members.