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What if you had no mind’s eye – no visual memory – and could not evoke images of your children’s faces, the house you live in, the meal you’ve just eaten or the holiday you’ve recently taken?

The idea seems inconceivable, but that’s the reality for people with a condition known as Aphantasia.

Sue Armstrong investigates the personal experience of people with Aphantasia. When did they become aware of it, how it has affected their lives and relationships with others – and what is being discovered about the science behind it?

A Ruth Evans production for ´óÏó´«Ã½ Radio 4