Reminds me of a book I read to my children about the woman Temple Grandin (https://en.wikipedia.org/wiki/Temple_Grandin) the book described her ability to think in pictures, and how it differed from the minds of others.
I have the inner dialog myself. I've talked with my sister about it, and she says she is able to have multiple threads going at once. Like she can do mental math and have a conversation with herself at the same time. I can only do one at a time. I've tried by counting and saying the alphabet in my head simultaneously, I can't do it.
It's called "visual thinking". https://en.wikipedia.org/wiki/Visual_thinking
I have the inner dialog myself. I've talked with my sister about it, and she says she is able to have multiple threads going at once. Like she can do mental math and have a conversation with herself at the same time. I can only do one at a time. I've tried by counting and saying the alphabet in my head simultaneously, I can't do it.