“Memory is our past and future. To know who you are as a person, you need to have some idea of who you have been. And, for better or worse, your remembered life story is a pretty good guide to what you will do tomorrow. ‘Our memory is our coherence,’ wrote the surrealist Spanish-born film-maker, Luis Buñuel, ‘our reason, our feeling, even our action.’ Lose your memory and you lose a basic connection with who you are.
It’s no surprise, then, that there is fascination with this quintessentially human ability. When I cast back to an event from my past – let’s say the first time I ever swam backstroke unaided in the sea – I don’t just conjure up dates and times and places (what psychologists call “semantic memory”). I do much more than that. I am somehow able to reconstruct the moment in some of its sensory detail, and relive it, as it were, from the inside. I am back there, amid the sights and sounds and seaside smells. I become a time traveller who can return to the present as soon as the demands of “now” intervene.” Continued on the Guardian Web Site.