How Does the Brain Turn Off During Improvisation?

When you are doing something that is younow, as i say, a very complex memorized task, and their whole focusis on getting it right. And so tat constantly, your brain is checking itself. We see a generalized shut down of these conscious self monitoring areas when they start improvising. I think that sort of, in a way, the letting go e iting thats to cananeal corl it up. Just letting go. That gos outright? Wat that right? I mi duing this righti don't that right?