What is synesthesia? -- A neurological phenomenon in which stimulation of one sensory cognitive pathway leads to automatic, involuntary experiences in a second pathway. We talk to several synesthetes and recreate their experiences. SUBSCRIBE: Follow us behind the scenes on Instagram: Make our acquaintance on Facebook: Give us a shout on Twitter: Visit our world directly: Great Big Story is a video network dedicated to the untold, overlooked & flat-out amazing. Humans are capable of incredible things & we're here to tell their stories. When a rocket lands in your backyard, you get in.
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