To answer your question, I call it "skip reading", I'm not sure if thats the correct term for it. I kinda browse down the page and my mind just picks up whats going on with the words. I don't quite get a movie in my head, but its like that. It seems like I'd miss stuff, but rarely. At school I picked up and retained what was going on in fictional books better than the rest of the class despite finishing before them and not actually reading the words. Text books and such I sometimes find I need to go back and read word for word though.

I get "voices" for characters, but weirdly they all seem like minor variations on my own. I've really gotten into listening to audio books now, and I love the good narrators who can really bring different characters alive with varied voices. Interestingly if I then read that book (or one in the series) I generally do "hear" the narrators voice for them, so its probably something I could work on.

I find it much more engaging. Things seem a lot less "alive" when I slow down and read word for word. I guess for me it makes the story move at real world speed, instead of slowing things down to reading speed. For whatever reason I really feel the emotion more too. Its kinda like I'm living the story, rather than reading it.