TED Radio Hour


Arts, Society & Culture, Technology

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The TED Radio Hour is a journey through fascinating ideas: astonishing inventions, fresh approaches to old problems, new ways to think and create. Based on Talks given by riveting speakers on the world-renowned TED stage, each show is centered on a common theme – such as the source of happiness, crowd-sourcing innovation, power shifts, or inexplicable connections. The TED Radio Hour is hosted by Guy Raz, and is a co-production of NPR & TED. Follow the show @TEDRadioHour.


The Unknown Brain

February 20th, 2015

Episode 79 of 129 episodes

The brain can seem as mysterious as a distant galaxy, but scientists are starting to map and manipulate its many regions. In this hour, TED speakers take us on a trip through the human brain. When neuroanatomist Jill Bolte-Taylor felt her brain shut down during a stroke, she was more fascinated than panicked. Even though she spent eight years recovering, she’s grateful for the stroke. Neuroscientist Suzana Herculano-Houzel turns brains into soup, so she can meticulously count the neurons, and determine why human brains are unique. Nancy Kanwisher studies the brain partly by staring at her own. She’s spent countless hours in an fMRI scanner, mapping her own brain to gain insight into what makes us human. Neuroscientist Rebecca Saxe explains how one region in the brain focuses on other people’s thoughts. Philosopher David Chalmers asks why humans have a sense of self, a constantly-running movie full of sensation and internal chatter. He offers two ideas about the nature of consciousness.

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