Wasn't sure where to post this but figured I'd post it here. The YouTube chanel The Charismatic Voice teamed up with Will Ramos (lead singer of Lorna Shore) to stick a camera down his throat and see what's going on when he's doing screaming vocals. Fair warning seeing the inside of a person's throat is pretty gross but it's a really fun, interesting and scientifically valuable video. Seriously the scientists doing the study get pretty excited.
For reference here's Will Ramos doing a one take vocal performance of their song To The Hellfire. It's one of the heaviest songs I've ever heard but it's also one if teh greatest harsh vocals performances of all time.