There is also a
variant of this called the
Blurring Test in which a human attempts to prove his or her humanity to a computer. Obviously, it's an
artwork rather than an actual investigation, but often creates some very interesting (and sometimes really, really funny) interactions. The premiere example of this is a
PBS Weblab exhibit named
MR MIND, an interactive website where the user tries to convince
MR MIND that they are human. It's a fun exploration into
the nature of humanity, and despite being done in a 'tech' setting, it's mostly done inside the visitor's head. The effectiveness of the site is a tribute to the designer (
Peggy Weil) as the technical side, the actual conversation
bot, is severely limited by the supporting and available
technology. Rather, it's the setup of the activity, as well as the
phraseology and language chosen for the bot, that make the site interesting and fun.
http://www.mrmind.com