Is the soul a product of body functions ?

People may have different points of view of this question because this is a very polemic question.

According to the platonics and the christians, the soul is inmortal and the body can died but the soul is eternal and for them the soul is independent form the human body. It is inmaterial .

And aristotelics understood the human soul as something that allow us to have functions in our body like, breathing, the memory, the emotions, and the same perception of the reality.

But for others and for me the soul doesn't exist because for me the soul doesn't make anything because it doesn't exist.

I think that is the brain who has the function of what aristotelics call the soul.