Interesting, I think I always subvocalise when reading and found it hard not to when I just tried. I just asked my wife and she says she never hears a voice or even music in her head like that and was a bit shocked when I said I could.<p>When I was a teenager I took elocution lessons, read poetry and acted in plays. I would read through a piece imagining where I would pause, where to put emphasis, etc. So I know I subvocalised then, but don&#x27;t know if I did before or if that&#x27;s when I learned to do it.<p>I know it takes me much longer to read a book than my brother or father or many of my friends. I can read a book once and remember small details from the story they have completely forgotten and sometimes they&#x27;ve read a book multiple times when I have far better recollection of it from a single much slower reading. I&#x27;m wondering if subvocalisation plays a part in that.<p>Edit: another factor is that I remember words from their sound, not their spelling, so have always had difficulty with spelling. I can&#x27;t visualise the word, and often need to actualy write a word out before I can figure out how to spell it. Just spelling out words letter by letter vocally is very hard for me.