How do humans read romanized writing

[Little Tadpole]

Just found this piece on the net:

Aoccdrnig to rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in
waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht
the frist and lsat ltteer be at the rghit pclae. The rset can be a
toatl mses and you can sitll raed it wouthit a porbelm. Tihs is
bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the
wrod as a wlohe.

This shows that the first and last letter of a word are very important
towards the pattern recognition. I guess Tadpolenese is easier to read
also because of this. After all, tone categories are better correlated
to grammatical functions than vowels themselves.