Just what is the difference between sensing and perceiving? And how does vision actually work? And what does this have to do with a Corgi? In this episode of Crash Course Psychology, Hank takes us on a journey through the brain to better explain these and other concepts. Plus, you know, CORGI! Want more videos about psychology? Check out our sister channel SciShow Psych at null! -- Chapters: Introduction: Face Blindness (Prosopagnosia) 00:00 Sensation vs. Perception 0:54 Sense Thresholds 1:43 How Human Vision Works 4:23 Visible Light Spectrum 5:00 How the Human Eye Processes Light 6:01 Rods & Cones 6:31 Human Color Vision 6:56 Visual Cortex 8:02 Parallel Processing 9:30 Review & Credits 9:52 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: null