What is it that makes you distinct from me? Identity is a term much used but hard to define. For that very reason, it has long been a topic of fascination for philosophers but has been regarded with aversion by neuroscientists – until now. Susan Greenfield takes us on a journey in search of a biological interpretation of this most elusive of concepts, guiding us through the social and psychiatric perspectives and ultimately into the heart of the physical brain. As the brain adapts exquisitely to environment, do the cultural challenges of the 21st century mean that we are facing unprecedented changes to identity itself?

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Baroness Susan Greenfield talks about You & Me: The Neuroscience of Identity.

Watch Susan Greenfield speaking on individuality.

Watch Susan Greenfield on 'Mind change -- "an issue that's as important and unprecented as climate change" '.

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