Thursday, May 6, 2010

Hands-on research.

I may be just an RA (research assistant) but I get to do some pretty cool stuff. Take fingerprinting, for example. Part of my job is to collect fingerprints from people so we can use those prints in experiments where we look at how people process complex visual stimuli.

Believe it or not, taking someone’s fingerprints is actually pretty difficult. You have to (gently) twist a person’s arm in really awkward ways to roll their fingers evenly across a 10-print card. At the moment I’m pretty crap. Here are some examples of crap print rolling:

A twitch during the roll (the vertical smudges in the centre), and too much pressure (the smudging along the top)

Not enough ink covering the finger

Too much ink (coupled with too much pressure)

Sigh. Looks like I've lots of practice ahead of me...

- Morgan

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