The right hemisphere seems to be involved more with new experience, new events, things, ideas, words, skills or music, or whatever it may be, while they are still fresh, original and unique, and so to speak present, to the mind. The right hemisphere's world is present – or more precisely ‘presences’ to us, as Heidegger puts it. By contrast the left hemisphere's world takes over once whatever it is is represented – literally ‘re-presented’ after the fact: once it is familiar and known, as an instance of something, a concept.
