I'm an AI professor but since the article doesn't say and we all wanted to know I had to do some digging... So those of you interested can read instead: Georg

I'm an AI professor but since the article doesn't say and we all wanted to know I had to do some digging... So those of you interested can read instead: Georgiadis, Kringelbach & Pfaus (2012) https://www.nature.com/articles/nrurol.2012.151 https://www.nature.com/articles/nrurol.2012.151 (Nature Reviews Urology volume 9, 486–498) Diamond 1997 http://ndl.ethernet.edu.et/bitstream/123456789/5510/1/146.pdf http://ndl.ethernet.edu.et/bitstream/123456789/5510/1/146.pd... (This seems to be an online version of an old book, not sure why it's hosted in Ethiopia?)