This week we revisit a classic edition of the podcast recorded in February 2012. Former Science Weekly presenter Alok Jha interviewed three specialists investigating the "hard problem", human consciousness: Dr Anil Seth, co-director of the Sackler Centre for Consciousness Science at Sussex University; Professor Chris Frith, professor emeritus at the Wellcome Trust Centre for Neuroimaging at University College London; and Professor Barry Smith, director of the Institute of Philosophy at the School of Advanced Study, University of London.
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