Exploring the senses

Download a free audiobook version of "Hallucinations" and support TED-Ed's nonprofit mission: Check out our full book recommendation: View full lesson: A condition called Charles Bonnet Syndrome can cause blind patients to hallucinate scenes in vivid color. fMRI studies show that these hallucinations activate the same brain areas as sight — areas that are not activated by imagination. Other hallucinations also involve the same brain areas as real sensory experiences. What's going on? Elizabeth Cox details the science of hallucinations. Lesson by Elizabeth Cox, directed by Nerdo. Thank you so much to our patrons for supporting us on Patreon! Without you this video would not be possible! Mayra Urbano, Kostadin Mandulov, Alex Schenkman, Sdiep Sriram, Ivan Todorović, Antero Semi, Yanuar Ashari, Mrinalini, Anthony Kudolo, Querida Owens, Hazel Lam, Manav parmar, Dwight Tevuk, Stephen A. Wilson, Siamak H, Dominik Kugelmann, Katie Winchester, David Rosario, Samuel Doerle, Be Owusu, Susan Herde

Download a free audiobook version of "Hallucinations" and support TED-Ed's nonprofit mission: Check out our full book recommendation: View full lesson: A condition called Charles Bonnet Syndrome can cause blind patients to hallucinate scenes in vivid color. fMRI studies show that these hallucinations activate the same brain areas as sight — areas that are not activated by imagination. Other hallucinations also involve the same brain areas as real sensory experiences. What's going on? Elizabeth Cox details the science of hallucinations. Lesson by Elizabeth Cox, directed by Nerdo. Thank you so much to our patrons for supporting us on Patreon! Without you this video would not be possible! Mayra Urbano, Kostadin Mandulov, Alex Schenkman, Sdiep Sriram, Ivan Todorović, Antero Semi, Yanuar Ashari, Mrinalini, Anthony Kudolo, Querida Owens, Hazel Lam, Manav parmar, Dwight Tevuk, Stephen A. Wilson, Siamak H, Dominik Kugelmann, Katie Winchester, David Rosario, Samuel Doerle, Be Owusu, Susan Herde

Check out our Patreon page: View full lesson: The ability to recognize sounds and identify their location is possible thanks to the auditory system. That’s comprised of two main parts: the ear, and the brain. The ear’s task is to convert sound energy into neural signals; the brain’s is to receive and process the information those signals contain. To understand how that works, Douglas L. Oliver follows a sound on its journey into the ear. Lesson by Douglas L. Oliver, animation by Cabong Studios. Thank you so much to our patrons for your support! Without you this video would not be possible! Irindany Sandoval, William Bravante, Elizabeth Parker, Sai Krishna Koyoda, Therapist Gus, Samuel Barbas, Betsy Feathers, Maxwell Ingram, Ajinkya Deshmukh, Victoria Soler-Roig, Abdulmateen Aderinto, Pavel Maksimov, Barbara Younker, Cyrus Garay, Yvette Mocete, Mike Azarkman, Valeria Sloan Vasquez, Patricia Alves Panagides, William Biersdorf, Michael Aquilina, Vinamr L. Sachdeva, FireWolfLasers, Kshitij

Check out our Patreon page: View full lesson: The ability to recognize sounds and identify their location is possible thanks to the auditory system. That’s comprised of two main parts: the ear, and the brain. The ear’s task is to convert sound energy into neural signals; the brain’s is to receive and process the information those signals contain. To understand how that works, Douglas L. Oliver follows a sound on its journey into the ear. Lesson by Douglas L. Oliver, animation by Cabong Studios. Thank you so much to our patrons for your support! Without you this video would not be possible! Irindany Sandoval, William Bravante, Elizabeth Parker, Sai Krishna Koyoda, Therapist Gus, Samuel Barbas, Betsy Feathers, Maxwell Ingram, Ajinkya Deshmukh, Victoria Soler-Roig, Abdulmateen Aderinto, Pavel Maksimov, Barbara Younker, Cyrus Garay, Yvette Mocete, Mike Azarkman, Valeria Sloan Vasquez, Patricia Alves Panagides, William Biersdorf, Michael Aquilina, Vinamr L. Sachdeva, FireWolfLasers, Kshitij

View full lesson: Some perfumers can distinguish individual odors in a fragrance made of hundreds of scents; tea-experts have been known to sniff out the exact location of a particular tea; and the NYC Transit Authority once had a employee responsible only for sniffing out gas leaks. But can anyone learn to smell with the sensitivity of those experts? Alexandra Horowitz shares three simple steps to a better nose. Lesson by Alexandra Horowitz, animation by Black Powder Design.

View full lesson: Some perfumers can distinguish individual odors in a fragrance made of hundreds of scents; tea-experts have been known to sniff out the exact location of a particular tea; and the NYC Transit Authority once had a employee responsible only for sniffing out gas leaks. But can anyone learn to smell with the sensitivity of those experts? Alexandra Horowitz shares three simple steps to a better nose. Lesson by Alexandra Horowitz, animation by Black Powder Design.

View full lesson: There are three types of color receptors in your eye: red, green and blue. But how do we see the amazing kaleidoscope of other colors that make up our world? Colm Kelleher explains how humans can see everything from auburn to aquamarine. Talk by Colm Kelleher, animation by TED-Ed.

View full lesson: There are three types of color receptors in your eye: red, green and blue. But how do we see the amazing kaleidoscope of other colors that make up our world? Colm Kelleher explains how humans can see everything from auburn to aquamarine. Talk by Colm Kelleher, animation by TED-Ed.

Explore the similarities and differences between how your eyes see and how a video camera “sees.” -- Your eyes don’t always capture the world exactly as a video camera would. But the eyes are remarkably efficient organs, the result of hundreds of millions of years of coevolution with our brains. Michael Mauser outlines the similarities and differences between your eye and a video camera. Lesson by Michael Mauser, animation by Nick Hilditch. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: Check out our merch: ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: Follow us on Facebook: Find us on Twitter: Peep us on Instagram: ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: Dig deeper with additional resources: ----------------------------------------------

Explore the similarities and differences between how your eyes see and how a video camera “sees.” -- Your eyes don’t always capture the world exactly as a video camera would. But the eyes are remarkably efficient organs, the result of hundreds of millions of years of coevolution with our brains. Michael Mauser outlines the similarities and differences between your eye and a video camera. Lesson by Michael Mauser, animation by Nick Hilditch. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: Check out our merch: ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: Follow us on Facebook: Find us on Twitter: Peep us on Instagram: ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: Dig deeper with additional resources: ----------------------------------------------