The mind cannot emerge from the brain if the two have no qualities in common:
In his continuing discussion with Robert J. Marks, Michael Egnor argues that emergence of the mind from the brain is not possible because no properties of the mind have any overlap with the properties of brain. Thought and matter are not similar in any way. Matter has extension in space and mass; thoughts have no extension in space and no mass.
Michael Egnor: The thing is, with the philosophy of mind, if the mind is an emergent property of the brain, it is ontologically completely different. That is, there are no properties of the mind that have any overlap with the properties of brain. Thought and matter are not similar in any way. Matter has extension in space and mass; thoughts have no extension in space and no mass. Thoughts have emotional states; matter doesn’t have emotional states, just matter. So it’s not clear that you can get an emergent property when there is no connection whatsoever between that property and the thing it supposedly emerges from.
The other problem with emergence is even more fundamental: When you think about the wetness of water as an emergent property of water, you are really talking about a psychological state. That is, you are saying, psychologically you didn’t expect water to feel wet but by golly, it does. So that’s emergent. But you can’t explain the psychological state [of perceiving wetness] itself as emergent. – Mind Matters News
See also: Why eliminative materialism cannot be a good theory of the mind. Thinking that the mind is simply the brain, no more and no less, involves a hopeless contradiction. How can you have a proposition that the mind doesn’t exist? That means propositions don’t exist and that means, in turn, that you don’t have a proposition.