The Guardian's Science Weekly

A Neuroscientist Explains: where perception ends and hallucination begins - podcast

37:43 | Apr 2nd, 2018

When it comes to perceiving the world around us, how much of it is due to ‘bottom-up’ sensory data and how much comes from the ‘top-down’ predictions we make? Most importantly; how can the delicate dance between the two lead to hallucinations?