Admixture study for neanderthal ancestry and psychological traits
It is possible to estimate an individuals neanderthal ancestry. 23andme does this.
It is possible to use the admixture study design to see what the effects of some kind of ancestry origin is.
What are we waiting for? They can use the SNP datasets they have used GWA studies for psychological traits.
Girlfriend [12th may 2014]: I bet theres an autism/neanderthal link