Full Idea
The two principle arguments which overthrew the mind-brain identity theory were the multiple realization argument of Hilary Putnam, and the anomalist argument of Davidson, which contained the seeds of functionalism and anomalous monism.
Gist of Idea
Identity theory was overthrown by multiple realisations and causal anomalies
Source
Jaegwon Kim (Mind in a Physical World [1998], §1 p.002)
Book Reference
Kim,Jaegwon: 'Mind in the Physical World' [MIT 2000], p.2
A Reaction
The first argument strikes me as significant and interesting, but Davidson seems weak. It makes the unsubstantiated claim that mind is outside the laws of physics, and irreducible.