Full Idea
Anyone who thinks phenomenal qualities are inseparable from our awareness of them, must think subconscious mental states are totally devoid of phenomenal qualities! So how can these states cause behaviour in the way conscious states do?
Gist of Idea
How come unconscious states also cause behaviour?
Source
Michael Lockwood (Mind, Brain and the Quantum [1989], p.166)
Book Reference
Lockwood,Michael: 'Mind,Brain and the Quantum:The Compound 'I'' [Blackwell 1991], p.166
A Reaction
I agree with this thought, though it is beautifully unprovable. We would need to respond to a red traffic light, without having consciously registered its presence. It is is just increasingly clear that we register information pre-consciously.