Interesting question...
I tend to create imagery when I listen, but not so much when I play. I couldn't describe the images any more than I could describe a dream. I don't tend to remeber them. I dunno... Maybe I'm just dozing off when I listen.
As to PLAYING, I guess I have to wonder why we can't have aural imagery. The sound is the image I'm hearing/seeing. You've got me a little bugged with this question. I've never thought of it before. I'll to ponder it more deeply when I'm playing.
Oh well...
Peace!
ND