Oh alright , sorry I misread your question. I think perhaps those who are hearing impaired , it would be much easier to zone out. For me, I know I have had trauma since childhood, and because of the difficulty of the situation I had to dissociate...perhaps in a way natural hearing impairment , it may be difficult to make sense of a chaotic or hard to hear environment, making it easier to "escape" into your mind so to speak.

Im no expert but perhaps this is what you mean?