Recommendations

I would recommend that this research is not really something you should explore into. Its mostly because its not a solid answer your going to get, its not something based on fact. Its the controlled experiments. You don't know how they have been living, or what language they speak the most. Its mostly based on that. so your wouldn't have a clue as to what sets off the language they like to or are use to s[peaking the most. But it may be something you would want to look into is you are probably very interested in this kind of research.