they did a bad job of putting it into context, to this apparently 18 yr old scientist's brain. this really is a more a reflex/stamina/attention span test, which to me may not really translate to 'cognition'. but, intersesting none the less.

and yes, the 1 and the 7 looked a lot alike.
and i found myself getting a little comatose staring at the screen waiting for a new flash of words or numbers. but comatose is my normal state lately, so that may confound the variables here!