Someone once told me that hiccups had nothing to do with eating too fast, breathing abnormally, or etc... He said it was simply a 'rogue' signal from a person's brain to their diaphragm telling it to contract, causing the hiccup. This reminded me of a book I read once called 'The Head Trip: Adventures on the Wheel of Consciousness" by Jeff Warren, In each state of consciousness talked about in the book, there were sometimes detailed information about the EEG signature of that state and how other emotions or actions could affect it.

I decided that if I could force my brain into doing some other task requiring lots of focus (I usually just imagine myself yelling "Brain, stop it!"), the hiccups cease immediately. This has worked every time, but I can't find a suitable explanation backed by scientific evidence why. Would anyone care to share their thoughts?