Mind, Space & Motion

In this episode of the Making Sense podcast, Sam Harris speaks with Barbara Tversky about how our senses of space and motion underlie our capacity for thought. They discuss the evolution of mind prior to language, the importance of imitation and gesture, the sensory and motor homunculi, the information communicated by motion, the role of "mirror neurons," sense of direction, natural and unnatural categories, cognitive trade-offs, and other topics.

Barbara Tversky is a professor emerita of Psychology at Stanford University and a Professor of Psychology and Education at Teachers College, Columbia University. She was elected to the American Academy of Arts and Sciences and is a fellow of the Cognitive Science Society, the Association for Psychological Science, and the Society for Experimental Psychology. Barbara has published more than 200 scholarly articles about memory, spatial thinking, design, and creativity. She is the author of Mind in Motion: How Action Shapes Thought.


Join neuroscientist, philosopher, and best-selling author Sam Harris as he explores important and controversial questions about the human mind, society, and current events.

Sam Harris is the author of five New York Times bestsellers. His books include The End of Faith, Letter to a Christian Nation, The Moral Landscape, Free Will, Lying, Waking Up, and Islam and the Future of Tolerance (with Maajid Nawaz). The End of Faith won the 2005 PEN Award for Nonfiction. His writing and public lectures cover a wide range of topics—neuroscience, moral philosophy, religion, meditation practice, human violence, rationality—but generally focus on how a growing understanding of ourselves and the world is changing our sense of how we should live.

Harris's work has been published in more than 20 languages and has been discussed in The New York Times, Time, Scientific American, Nature, Newsweek, Rolling Stone, and many other journals. He has written for The New York Times, The Los Angeles Times, The Economist, The Times (London), The Boston Globe, The Atlantic, The Annals of Neurology, and elsewhere.

Sam Harris received a degree in philosophy from Stanford University and a Ph.D. in neuroscience from UCLA.