[pbhjpbhj]

I gather that subvocalisation also is accompanied by eye movement and some facial muscle activity and that this is used by mentalists like Derren Brown. For example the way the eyes look can show if one is thinking about something in the future or past (although it doesn't work on everyone and I think is culture dependent).

If Sapir-Whorf holds true then we should see those using a specific language excelling in specific areas shouldn't we? Could this perhaps account for some of the stereotypical characteristics we ascribe to different nationalities.