Originally Posted by Michael Chui
Yes, mental causality exists. It is an extension of physical causality.
1) Physical causality is the source of consciousness.
2) Consciousness is the source of mental causality.
3) Mental causality is the source of the conviction of consciousness.
4) Thus, physical casuality is the source of the conviction of consciousness.
It seems you are advocating interactive dualism here but where the brain produces consciousness. In other words although consciousness and therefore mental causality are brought into being by physical events in the brain, consciousness is an emergent phenomenon which has genuine causal powers.
If that's what you're saying I agree that this is intelligible (although I don't necessarily agree with it).