Sensation and Perception: Crash Course Psychology #5

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 / scishowpsych !
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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
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CC Kids: / crashcoursekids

[@carolchen2320]

That's right, I am your average binge watching crash course kid a night before AP psych exam. Are you guys with me?!!

[@isaihhernandez9991]

Heck yeah I am!

[@diegozunun9821]

yup... lol

[@phoebechan4378]

+JP Alpha My exam is 9:30 am on Monday T_T

[@marivadeborde1315]

I was with you lol. Didn't see this till now.

[@TarryGames]

I'm a middle schooler so you don't have the right to call yourself a kid :p

[@crosbywhittington4879]

I am dying right because i'm swamped with Psychology homework, but that corgi just made me feel so much better. I vote to have the Corgi in every crash course video

[@cianodwyer5144]

Someone, somewhere realized they were color blind while watching this video lol

[@thebarbellpath1040]

i did

[@wmcpromo]

That's a interesting perception

[@thescientist7753]

@@thebarbellpath1040 f

[@deepakraghav8235]

I realized too.. 😂

[@danspearo6893]

Understanding perception from lecture = no. Understanding perception from psychology crash course = yes! When are you guys making more videos/lessons? So helpful, thank you!!

[@christopherlokey691]

You explained waves better in 30 seconds than my physics teacher did in 47 minutes. And you did it in a psychology video. I'm impressed.

[@Linkous12]

I have a Bachelor's degree in Psychology, and I am amazed by how little I learned about neurology and physiology. Hank's teaching me more about these things than my college education did. Go higher education! Oh, and thanks Hank!

[@Kissarai]

I had to rewatch some of that. When the corgi showed up all my attention was wrapped up in "OMG OMG OMG OMG SO CUTE CAN'T HANDLE OMG CUTE."

[@Edgelordess]

I think thats the point, becuase thats a form of perception.

[@rufusmassey899]

Ofcourse you're a young white female

[@qwertylazerti]

Hank has a Corgi on his lap!!! Omg! So cute!

[@syntacticalcrab]

Mustache Guy This entire video is just adorbs.

[@child9125]

+Mustache Guy I could not pay attention to anything else.

[@seyramagudu5237]

"Someone just told me the word 'sherbert' doesn't exist." "His name is Michael Aranda and he's a dumbhead." "ASK GOOGLE ABOUT SHERBERT!" I love Hank Green.

[@user-cs7dt8zg4x]

Lol technically he was right though- "Sherbet" is how it's spelled /pronounced but a lot of people add that R into it (I usually do because it's what I'm used to saying )

[@a_Rand0m_Guy]

i love the absolute randomness of the sherbert part like that has nothing to do with psychology and almost nothing to do with the video but they invluded it anyway

[@SharukhSaifi]

It has mate

[@MauroEnfermoDeLepra]

Funny thing, my native language is spanish, yet thanks to this courses I know a lot of words in English that I have no idea in Spanish

[@ehh1997]

Of course its psychology

[@superbucko8640]

Tyrion Lannister English has more words than Spanish does, so there might just not be a word for it. Or you haven't progressed that far in your language :)

[@AndresDiazR]

Super Bucko I think he is talking about technical words because the same happens to me. I am a native spanish speaker but I study overseas, and I am learning jargon which equivalent I do not know in spanish because I never studied such subjects back in my country.

[@superbucko8640]

Andres Diaz That is what I meant. Although there are regular English words that don't have a word in Spanish, and a bit vice versa.

[@thevoidtalksback683]

Tyrion Lannister I am greek and whenever I try to explain the video to my friends I take english words and just say them by putting greek endings to them like ''ya that's a word''.

[@abigailnorma775]

AP Psych 2019 anyone? Good luck on the exam!!!

[@samfenn3948]

Abby Nogueira omg YES IM ~slightly~ cramming for the test in CST

[@iRaven-_-]

No. Im just watching it for knowledge, why everyone saying that.

[@zadams1816]

I needed this comment haha

[@sarahhamdan5470]

I have a question, what does this have to do with psychology??

[@zadams1816]

@@sarahhamdan5470 it's a huge section in cognitive or neuropsychology. Psychology students have to study some physiology like the brain and how perception works etc

[@MsKeksPudding]

I love how we're actually using his as educational material in our Psychology Bachelor course! Nice explanations!

[@simplymaci]

Idk who's more precious, the corgi or Hank Green 😂

[@atheris1641]

simplymaci the answer: both 😂

[@anushkapandey4957]

simplymaci got it right!!!!!

[@dustindurfee7066]

Definitely Hank!

[@kaziiqbal7257]

The corgi.

[@kambojsbTech]

ap psych hoping for a 4 right now

[@NoName-bc9lr]

+kamboj sb omg same. i just want a 3 tho cuz im not so smart in there. :P tmrw is our exam. :( ughhhhh

[@taylordunlavy9546]

+kamboj sb same

[@Ghostshado98]

Hopefully I'll get a 3, but I think I can slide with a 4. Gura, I'm so nervous!

[@Ghostshado98]

XP yea. wasn't too bad tho

[@fiercekrypton]

Philosophy series please.

[@TheStrangestMist]

+Thomas And math. I'm dying in Pre-Calculus right now.

[@TheStrangestMist]

***** Thank you!

[@steampunkengi5805]

top kek.

[@sithys]

This video is so interesting, I can't wait to learn more about...... THAT CORGI LOOKS SO HAPPY.

[@crashcourse]

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, ***** takes us on a journey through the brain to better explain these and other concepts. Plus, you know, CORGI! Sensation & Perception - Crash Course Psychology #5

[@OmerAliuddin]

ITS HERE! :o!

[@yusuphabayo4932]

Nice..

[@mistahmalinali3438]

I likes this vid

[@billswingle2672]

Golly the detail of your lesson is impressive. I can only guess how much effort went into creating this. Kudos to you and the team.

[@RasmusBugge]

I would love a crash course - Philosophy - Rasmus from Denmark

[@floreadanacatalina1055]

you lost all my attention at the part with the corgi i'm sorry

[@Aerchain]

fr i was to focus on the dog i was like omg tbh i startedthinking of cowboy bebop

[@floreadanacatalina1055]

:)) i kno

[@jacksparrowismydaddy]

+Florea Dana Catalina yeah corgis are distracting. now I have to replay the whole thing and filter out the cute little land seal.

[@floreadanacatalina1055]

i did that, it didn't help :))

[@BigBoss-sm9xj]

Same!!

[@itsagreyworld3371]

That dog is so fucking confused. The whole time he was trying to figure out wtf Hank was doing with his hands.

[@flowers2312]

I do the same thing with my dog actually lol

[@Carter4240]

I have a corgi and they will try to follow you hands because they think your trying to play

[@nine49four]

I'm studying psychology and the topics of these videos coincide with the topics I'm learning at university. I'm paying thousands of dollars for this material at university, yet your videos are better. Love it.

[@DannyMercer1993]

As an anatomist, can I just say that this was brilliant. The calibre of the scientific content, friendly "layman" presentation, and fabulous animation is how things should be taught in this age. Its just ace :P

[@bhyjazjazz373]

Can u guys do a philosophy series where you talk about things like existentialism and other such things

[@lightningkiki6090]

They have now. Yay!!!

[@ES-xx2jq]

I've spent a week learning this stuff for a university exam next week and you just give me all of it in 10 minutes. The more I learn the more I appreciate the quality of crash course😍

[@Blackgirltries]

I'm so glad you started making psychology this semester! it's like you were meant to help me! I have a test tomorrow & you are on the same track as my psychology class! I'm sooo grateful

[@x0xNikkiWx0x]

On behalf of all those who have a psychology exam tomorrow THANK YOU :D So many of your Psychology videos have been incredibly helpful!

[@finnigankeane]

You covered more than 7 seven ap videos in 10 minutes. Absolutely insane!

[@alittlebritobsessed]

Michael Aranda does such an awesome job on these visuals! I love how beautiful these animations are ^_^ And thanks for the informative video Hank! Your CrashCourse biology, ecology, psych and chemistry have always been there for my last minute cramming :)

[@Selene147]

This video makes my brain happy. Thank you for inspiring me to think (and think quickly!) and examine questions about things that are so often taken for granted. Our brains and minds and bodies and selves are all so uniquely complex. It's miraculous. This world is such a beautiful place. And it's so good to stop and appreciate that we can see it at all.

[@AldoConstenla]

I'll never run out of things to watch with this channel... I feel so happy I found it. This is a terrific job, really impressive. Thanks a lot for all this content, I am amazed!

[@beccarmagie]

I love these videos I just graduated in Psychology with the aim of becoming a clinical psychologist. I would like to point out a slight inaccuracy, the left hemisphere of the brain receives input from the right hemispheres of BOTH eyes, and vice versa, the left brain does not control the right eye but rather the right visual space from both eyes.

[@beccarmagie]

Which is what I said, the left brain receives info from both right hemispheres, i.e. the right hemisphere from the left and right eyes, and vice versa.

[@SeitanSaidDance1]

This was great. I really hope Crash Corgi becomes a regular feature.

[@fakjbf]

"....which can get complicated quickly, and can even get downright philosophical." Best quote from the episode :)

[@DanThePropMan]

Not "His name is Michael Aranda, and he is a dumbhead"?

[@Gailsla10]

So interesting! Growing up, I've always had issues recognizing smells from specific sources, even though i could still smell. Whenever I tried explaining this issue, people thought there was an issue with my sensing, because i didn't have the vocabulary to explain it's actually my perception!

[@GhostsAreReall]

A PUPPY!!! I love crash course even more! :3

[@kiloiuu]

I haven't even finished watching this video. But I love this channel. I'm studying Psychology right now in Moçambique, the lessons are very formal and the teachers sound very boring and seem a bit lost sometimes here. The way you give out information about Psychology is wonderful. Makes it so much easier to understand with the examples too and a little humor in the middle makes me like it even more. At the same time, this is 4 years later, but I hope that you keep adding new things for us to keep learning

[@AlexHider]

3:33 that corgi is CHILL

[@kal4636]

When youre trying to learn about psychology but... Corgi

[@jaynejacobs3160]

Wow! Thank you so much! I've been unsuccessfully trying to decipher the chapter on vision in my textbook for an online class in sensation and perception. This 10-minute video cleared up a great deal of what I wasn't understanding.

[@oyleinharrison2697]

Thank you for this video! I am in first year university, and yet this video summarized our whole chapter on sensation and perception. Very concise, very informative.

[@meganlynncoombs]

Just wanted to let you guys no you never fail to make me happy :) Used your videos throughout high school and they were sooo helpful!! I was so glad when i realized that you also have videos that are now helping me in university. you guys rock!!

[@destinydempsey9245]

I learned more from this video than I did the whole 2 chapters I read about perception vs sensation in my Psychology textbook. Thank you.

[@sleuthed]

I also have prosopagnosia. I have trained myself to be able to recognize some people sometimes, context helps, by looking for specific facial features, but it's not an automatic thing like it seems to be for most people. I also had to force myself to look at people's faces, which as a kid (autistic) I tended to... not do. Possibly related. I have walked right past my mom in public without registering it was her before. As a kid going grocery shopping with her I had to remember what she was wearing so I could find her again. Sometimes I forget that's not normal.

[@Collsy100]

Baby Alice animation! My heart!

[@strawberryiesful]

Using all your Psychology videos to help me study for my AP test in the beginning of May. Extremely helpful.

[@jessewolf2872]

+strawberryiesful Same

[@bloodsolder01]

+strawberryiesful im dead

[@nailajoyce6751]

Same here!

[@strawberryiesful]

Lol it's alright

[@giablum5384]

did you pass???

[@jamesrobinson949]

To second one of the previous comments, I really do appreciate the trouble you guys go through to make these videos they are some of the best on KZbin.

[@TheGuyNamedAnon]

Hank and a Corgi, two of my favorite things, in a video together. You don't understand how happy this made me.

[@TheGuyNamedAnon]

I should also mention I'm a psych major, so it's pretty much the best video on youtube for me.

[@TripsStarlake]

I'm so grateful for Crash Course Psychology, I am in Psychology 100 and we are on the same track as your videos...so, they're very helpful!

[@shangsi]

My brain almost suffocated by ur speech speed. Someone give him a speeding ticket lol

[@Child-of-Astara]

Oh my goodness...please, please, PLEASE continue to make studying this AMAZING.

[@shrutimarlecha1552]

I've taken up an online course on Introduction to Psychology, and Crash Course Psychology was one of the supporting materials for the modules. Now, it is way past midnight and I have been binge watching the entire series but I should be sleeping but then this is so well done and interestingly presented! I have even managed to take some notes for my own research and study. Thank you for your stellar work! 🙂

[@IsiTurner]

I love how the parents were John and Sarah, with Henry and Alice!

[@AnshuSingh-tg6kx]

Hiii Isobel Turner

[@patrickgen]

Great series! You're talking about all the things I'm learning in my psychology class, it's a nice review!

[@robertadevine4239]

THANK YOU SOOOOO MUCH. Crash Course has been my tutor for my whole Psychology Program for my Bachelors Degree. I love your videos!! When I afford it, I will contribute, for sure! Thank you .

[@catmc7616]

I'm studying Anatomy and I watch all you videos. They are very helpful and fun. I have two corgis and I love when your corgi shows up in the videos!!

[@VirtuallyKesi]

Is it weird that I watch these for fun?

[@moonflower813]

Not at all. I do it too. It's fascinating stuff.

[@callumburke5018]

+sunburst223 Agreed

[@samkelly6064]

wanting to learn is not weird. Everyone should learn more about how their bodies and brains work.

[@Foreveralonecuuuh]

Yes.

[@mghinto]

Great episode guys! I have a few questions: Is facial recognition limited to human faces? Can the doctor recognize the faces of different animals for example? Or do they fall under the 'object recognition' category?

[@jasonmackinnon1175]

Your description of the visual pathway is spot on, except each hemisphere recieves information from both eyes; the left visual field of each eye is processed by the right cortex, and the right field by the left.

[@RockyAnnmarie]

Watching this as a review for a cognitive psychology test on sensation and perception. I haven't watched you guys since Ap psych in high school like 3 years ago. I love you guys your videos helped me so much and still do. I love you HANK

[@matthewdrummond1340]

I'm currently watching this in October 2016. Has me looking at the clowns a whole other light.

[@Krazycutiegurlxxx]

I love the creepy music they added in. It just sounds off-putting.

[@Viroquet]

this has become my favorite crash course subject. I cant believe ive forgotten how much i love psychology.

[@NandhiniLakuduva]

I've always watched the history crash courses with John, so its nice to finally check out a science crash course and meet you Hank! :D

[@littlemachiavelli]

Bless these videos, without them I would be failing AP Psych.

[@joseargerami5257]

Amen

[@itsmehstrawberry]

Do more videos with the Corgi! She was adorable!

[@marivadeborde1315]

Who else is here cramming for AP psych lol

[@TashyyyGaskarth]

learning more about light by watching this video than i learnt in three weeks of science classes on the same subject. thank you.

[@mollymolly234]

These videos are great while studying for the Psychology GRE test! Thank you!!

[@Umbra-Psi]

Whoa there Hank.. If you want me to pay attention you need to put down that corgi. But since it's already here for he love of god please show more of that corgi. CORGI!

[@OMG1877]

Seriously love watching crash course psych. It's a nice way to spend my 20 min breaks in between studying for the MCAT. Thanks Hank

[@MrMcalec]

CrashCourse has helped me in just about every one of my courses, thank you guys!

[@tanishqas3966]

I love the way you speak Hank! I understand everything so well!

[@tallbeauty]

I totally love this series. These have really helped me this semester with my Cognitive Psychology class. I hate school!

[@Crystalvampire66]

Extra thumbs up for Thought Bubble John and Sara(or possibly Sarah)

[@mrdan624]

You have no idea how much this is helping with my University course, thank you so very much CrashCourse

[@chindenach]

Your show is simply awesome and my AP psychology class thanks you for the quick review!

[@JamieHung5201314]

Psych test tomorrow and this information just zoomed past me @_@

[@bennybateman9942]

The doggo is such a distraction lmao

[@samkelly6064]

um no sorbet is like ice cream...

[@wanderluster_ac]

studying for midterms and stumbled upon this video.. now it all makes sense to me . thank you !

[@monkeypoohonyou]

This is my favorite crash course series so far!!

[@NumanKhan-tm2co]

the stuff that you delivered is quite informative but the speed that u have is like setting on rocket or a bunch of dogs is chasing you 😂😂

[@horseenthusiast1250]

*sitting

[@biancageraldinee]

use the caption

[@expandingdome6250]

Really trains your speed hearing, eh ?

[@nishatanaira857]

true...

[@bobdole877]

I usually put it on 1.5 or 2x speed to watch the video faster

[@thenekom]

Any video that starts out with "Let me tell you about Oliver Sacks" is bound to be awesome. Fascinating man to be sure.

[@sRosieRoseT]

these things are relevent to what im learning in my class. thank you these are really helping me

[@warriorcatskid003]

Wooo! Corgis AND talking about color. This particular artist is very happy right now.

[@spiffykitty01]

2019 AP PSYCH GANG WYA

[@user-jv4wr2mf3w]

we right here and we cruing

[@river8585]

I’m just a freshman learning for fun :c

[@dwightbarrett6912]

psychology test tomorrow i hope watching all these videos and reading the intro to psychology book helps...

[@princessvlog2699]

How'd it go?

[@dwightbarrett6912]

Not too bad I passed the course with a B+ 😎😎 Are you doing psychology?

[@mariapialucia7304]

it should count so many more views I adore this channel so much, it should get more recognization

[@WalkingthePlank28]

I’m still picking up on things I missed after like 10 viewings. Thank you for making this so palatable!

[@NatoCaloGaming]

DOOOOOGGGEEEE!

[@P9E8wcbpN6Q]

doge is not corgi doge is shiba inu

[@CascataAriana]

***** All are doge. Much bark.

[@hewlettsdaughter]

***** Doge is definitely corgi.

[@P9E8wcbpN6Q]

hewlettsdaughter very no much no look it up, doge is shibe

[@NatoCaloGaming]

DOGE!!!

[@mesinajohncarlo9281]

BS Psychology students! Good luck on your exams!!! I'm rooting for all of you!!!😍😭

[@GINGLESful]

Always loved sensation and perception. Great crash course, thanks

[@scottstanley1640]

This makes perfect sense why any type of substance I try to get other people to look into and it’s not just different opinions it’s there mind attraction’s

[@OthEdden]

It being called sher bert for sherbet is a function of rhotic accent coloring the vowels with an r sound. It is part of many American specific dialects. R basically is the most influentail letter in the English language and how people speak it.

[@ivomiturhead]

Cool!

[@delusionnnnn]

And, importantly, language is defined by usage, not by whether or not a specific dictionary has it. At this point in time "sherbert" is definitely a word, but like with many English words, it is more acceptable in some modes than others; while few people would correct someone who said "sherbert" in most modes of informal spoken English, it would generally get corrected to "sherbet" in a more formal written mode of English, such as advertising copy. Descriptive linguistics is your firiend!

[@charliea3812]

Good luck on the exam today!

[@PogieJoe]

The dog was great and Hank's reaction to it was even better. :) I'm really enjoying this series!

[@nkreshathomas6054]

You are amazing 😢 I have been using your videos for years and even now that I’m doing a degree it’s useful. Thank you 😊

[@BeatlesBiitch]

The new parents were TOTALLY John and the Yeti!!

[@samanthaclaire3114]

awww it's john, sarah, henry and their new baby at 3:05!!

[@hannahjoycheng]

I'm online schooled and tonight I'm going to take the semester exam for AP Psych so thank you hank i'm so grateful

[@debbypeace2167]

I have a test tomorrow, you have no idea how helpful this is 🙌

[@theamazingfuzzlord]

This episode was 10% Psychology, 90% Corgie ^_^