Who was an early proponent of functionalism with a special interest in the stream of consciousness?

The answer to this question would be William James.

William James studies how did the process of thought in human works. He was a medical doctor from Harvard and later become a prominent psychologist. 
It is called stream of consciousness because it is assumed that thinking is like water on the river that will always be flowing.

Don't pollution air circulation. wasting pollutionclean in your surroundings

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