I've had a really long running thread about this a few years ago, but I wanted to revisit it - firstly because I find it really interesting, and secondly for dissertation ideas 
So I don't have a minds eye. I couldn't picture a tree in my head, or a house, or my baby's face. I couldn't tell you 100% which colour my room is painted in, or what colour my dads car is. I literally think in words.
This means I have trouble with directions, even to places I've been several times. My memory is absolutely terrible - my long term memory is practically non existent.
Does anyone else experience similar? There's a test you can take here:
http://www.bbc.co.uk/news/health-340390544*
I know I want to do my dissertation on this condition. I'm so fascinated by it, and have been ever since I realised it was actually a thing (on Mumsnet!)
But I want it to be on aphantasia AND something. I was thinking aphantasia and memory.
But I remember that last time I had a thread on this, Mumsnetters with aphantasia (and myself) read extraordinarily quickly, and always had done from a young age. So I was thinking maybe I could test the strength of participant's minds eyes (couldn't work out the grammar for that phrase!), and then timing them whilst they read something. But might have to include some comprehension questions I guess to check they've actually read it.
Then I started thinking about the fact that people said they had always read quickly - so is this something we're born with? Could I figure out a way to test kids for it? Maybe a little too complicated?
My dissertation proposal's due in a couple of days. It can be really vague - I could probably just get away with writing 'aphantasia', but I want to get paired with the most appropriate supervisor, hence the forward thinking. Am waiting on DD to go to bed then I'll research some more, but these are just some initial ideas.
Please, please share your experiences of aphantasia and thoughts on interesting dissertation ideas 