Skip to content

seeing the brain from the inside

    Shoreditch Town Hall, 16 June 2014

    Dr Dominic ffythce | Mat Chivers | Rob Davis

    We trust our eyes. We look around and accept what we see at the world around us, even if knowing the experience is only a deception – a model of visual reality constructed by our brains. The compelling nature of deception relies on its apparent effortlessness, immediacy and hiding from the view the immense computation, interpolation, guess-work, prediction and abstraction underlying every second of visual experience. Yet the visual brain can go wrong and in so doing creates a visual reality that bears little resemblance to the real world. We call these brain glitches, visual hallucinations, or other related terms, and whether they occur in an entirely normal brain or as a consequence of pathological brain changes, they offer a glimpse into the inner workings of vision. At their paradoxical extreme, hallucinations even show us anatomical features of our brains as seen from within. This talk will describe a range of such experiences and what they tell us.