I don't know much about this type of technology, but I'm assuming that in it's current state, fMRI machines can't be compacted to the point where it is comfortable to wear on a daily basis.

I know that in their current state, MRI machines are huge and cost exorbitant amounts of money. Is there any other emerging tech that might allow users to go about their daily lives while capturing brain activity at a resolution that's useful to neuro-scientists?