Amanda I am sorry for what you are going through.
I can not tell you where I read this study on siezures and it was pertaining to CAG, but it wouldn't be any different for other parrots with the problem and that is when the siezure occurs it causes the electrical system in their brains to heat up and this is what damages the brain function, so the idea is to keep the brain cool which keeps the brain from swelling when a siezure happens.
Your vet should be able to give more info on this since my brain isn't working to well in the remembering department.
Best of luck!