In his new cover article for National Geographic magazine, science writer Carl Zimmer explores the inner workings of the human mind, and delves into the latest technologies on mapping the brain and finding out what specific neurons do - including one neuron that's only triggered by pictures of Jennifer Aniston. We talk with Zimmer about how far the science of the mind has come - and how far it still needs to go before we can answer questions about consciousness and free will.
Unlocking Secrets of the Human Brain
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Carl Zimmer, science writer who contributes frequently to National Geographic and The New York Times and three-time winner of the American Association for the Advancement of Science's Journalism Award
Christof Koch, chief science officer, Allen Institute for Brain Science