I can’t comment on the validity of the research, as I obviously don’t know anything about the science, but the results produced from this website are pretty fun - created by two experimental psychologists who are currently studying at the University of Aberdeen in Scotland. The particular section of the website I’m linking to is a face “averager.” You get a screen full of people’s faces and you can select two and merge them together. Not really tech, but I guess the formulas involved are technical.

There are other sections on the website that deal with prototyping and even the ability to upload your own images and create your own averages - not that I’ve tried that out yet. Check it out if you’re into this sort of thing, or even if you have a spare 5 minutes and want to play about with something a bit different and interesting. [SHOW ME]