Embouchure Dystonia: Mind Over Matter?
I will also put a link below to Wilktone - one of my favorite sites I may add. You can find a ton of great blogs over embouchure function, and videos too. I highly recommend his site.
Dr. David Wilken's Website & Blog: Wilktone
From his About Section: While a graduate student Dr. Wilken developed an interest in how brass embouchure's function after lesson's with trombonist Doug Elliot. His dissertation topic explored the physical characteristics that can make different players’ embouchures function correctly in very different ways. He continues to study brass embouchures in detail and is devoted to making this under-recognized topic more accessible to teachers and brass musicians.