Interesting.
Close your eyes and imagine walking along a sandy beach and then gazing over the horizon as the Sun rises. How clear is the image that springs to mind?
Most people can readily conjure images inside their head – known as their mind’s eye.
But this year scientists have described a condition, aphantasia, in which some people are unable to visualise mental images.Niel Kenmuir, from Lancaster, has always had a blind mind’s eye.
He knew he was different even in childhood. “My stepfather, when I couldn’t sleep, told me to count sheep, and he explained what he meant, I tried to do it and I couldn’t,” he says.