In which: I have congenital aphantasia

This evening I am the Guardian pick on this article. For about 15 years I've been aware that I have a rare learning difficulty where I have absolutely no visualisation ability - if you access your mind's eye regularly you will be utterly incapable of imagining what it is like to be me who does not have a mind's eye. Today I found out the correct term is congenital aphantasia http://www.theguardian.com/education/2016/jun/04/aphantasia-no-visual-imagination-impact-learning?CMP=share_btn_tw#comment-75619045