Ever find yourself in the middle of a conversation touching on usability or cognition? Well, incase you ever do, here is a great little piece of information to quote:

> A few years ago, while analyzing an experiment on number comparisons, Dehaene noticed that subjects performed better with large numbers if they held the response key in their right hand but did better with small numbers if they held the response key in their left hand.
> [other interesting info]
> He even suspects that this may be why travellers get disoriented entering Terminal 2 of Paris’s Charles de Gaulle Airport, where small-numbered gates are on the right and large-numbered gates are on the left.

Now I could never advocate blindly quoting someting like this without (at the very least) a peak at the source [article](http://www.newyorker.com/reporting/2008/03/03/080303fa_fact_holt/) – especially one as interesting, accessible, and informative as this one was.

Found amongst the many other quite interesting facts about cognition with a neurological slant on the wonderful Mind Hacks [blog](http://www.mindhacks.com/blog/2008/03/maths_and_the_number.html).