I'm an extremely visual thinker, and have a strong preference for communicating by typing. Very, very visual - to the point where I notice myself having difficulty expressing myself verbally. I do much better without the pressure to keep a verbal continuity going, and allowing myself to backtrack and edit as I go without mucking with how the communication turns out in the end.
I'm extremely visual too. Learning to dictate effectively was a weird experience and was significantly slower at first than typing (80 WPM). A five minute dictation could take half an hour the first few times. It took a few dozens of dictations before I got the gist of it. I bet it was still easier to learn than stenotyping.
These days I roughly visualize the text in my head while I'm dictating. Corrections can't be as easily made on the fly because the text is produced afterwards by a human and not in real time by a computer. If you're using a dictation pr...