 Whether it's psychiatric disorder or a way for people to process information, I have no clue, and I couldn't find anything when I started looking into it. I would say ding-ding on both of those. Ring the yes bell. Okay. Ding-ding. Echolalia is a pretty good guess. I'm not an expert in this, but as I understand it, the clinical diagnosis doesn't require that they vocalize the words, and it can also be used to describe words.