When I'm in the zone, thought sounds like a jet turbine "ffffffffffff", or being underwater. Sight stops working, or at least I don't remember what I saw during these moments. Also hearing seems to stop working, at least for outside sounds.

If I'm facing a screen, it is practically I see and I hear nothing.

If I get interrupted when I'm in that kind of trance, as in someone getting in my view starting to make signs, or poking me, I need a few moments to regain the ability to speak.