Full Idea
Consciousness is a higher-level or emergent property of the brain, but only in the sense that solidity is an emergent property of water when it is ice, and liquidity when it melts.
Gist of Idea
Consciousness is a brain property as liquidity is a water property
Source
John Searle (The Rediscovery of the Mind [1992], Ch. 1.IV)
Book Reference
Searle,John R.: 'The Rediscovery of the Mind' [MIT 1999], p.14
A Reaction
It is hard to know which side Searle is on. These examples are highly reductive, and make him a thoroughgoing reductive physicalist (with which I agree).