Color Vision: Trichromatic and Opponent Process Theories (Intro Psych Tutorial #46) 

The opponent theory used to fairly hard to understand but the way you worded it has made it a lot easier. Thanks man.

"I know it's hard to do" cracked me up haha thank you for the explanation, I understand this material so much better :)

THIS EXPLANATION WAS AWESOME. THANK YOU!!! this will definitely help me for my test i have on monday!

I was struggling to understand, the example you gave in 9:25 made me understand everything, thank you so much.

Thank you so much for explaining! I didn't really have hopes of understanding colour theories anymore, but you've somehow managed to enlighten me. This was really helpful :)

Very informative and easy to follow explanations. After reading my notes I was confused as to why it said that the long-ranged cones could respond to wavelengths of light that appear yellow, green and red since I read that green was perceived when looking at an intermediate wavelength of light but now it is all clear.

This is a lifesaver! You explain so well!

Ah perfect for MCAT Psych/Soc section, thanks! I wish you made a video about Opponent process theory of emotion and the other stuff but this was really helpful.

I had been struggling with these topics a lot and I have psychology exams the next week. Thanks a lot

12:31 - this explains everything

What's interesting to me about the cone receptors is that L & M both peak near green. M being close to fully saturated computer green and L is more of chartreuse. You can test this with lasers (frequency doubled ND:YAG for the green and Helium Neon for the charteuse). I suspect that we adapted this so we see so many different variations of greenery in our environment, perhaps to identify various kinds of plants. Given that, it's kind of strange how we experience quite distinct qualities of yellow, orange, and red. It terms of photoreceptor firing, both L and M would taper off and after about 625 nm, the reds become less orangey and more rosey, closer to fuschia. This is when only the L receptor is firing. And the S receptor peaks at quite a violet color (Helium Cadmium if you want to make a laser). In terms of our perception, we have a large space of blue and cyan, then there's also smaller spaces of aquamarine and azure (the hue at 210 degrees, halfway between cyan and blue). I almost don't want to give azure its own name, because it just feels like another kind of blue to me. Maybe it's a lexical thing versus a qualia thing? I'm not sure to be honest. I know some cultures have the same word for blue and green for example. However, when I look at the sensitivities of the cones, all three cross in the aquamarine area and cyan area. Cyan being mostly just S and M, whereas azure seems to be low intensity on the S cone. I know it's all kind of silly talking in terms of pure wavelength, since we reality doesn't work this way (even lasers have fall off, if very steep), but I guess I just want to reconcile physics with my perceptive qualities of color. I want to understand why we have those qualities.

11:30 this is the best way I have heard this put. Very helpful

This topic is my exam question that is coming up, very informative video. Thank you! :)

Thank you so much! I did not understand this concept at all from my textbook, but after one viewing I really got it!

It helps a lot as a complement to my textbook reading. Thank you very much mate!

This was a great video with a thorough explanation, thank you for uploading this!

Fascinating video and very well explained. I have a Psych question to answer which is compare and contrast the Trich and Opp Pro theories. I didn’t fully understand these theories until I watched your video. Thank you

Dude your videos are saving my ass for the psych GRE! Its such a pain have to relearn stuff I haven't read about in three years lol. thanks so much!

Explained opponent theory really well! Thank you!

OMg! you awesome!! I could never learn this even after 3 different courses..i just couldnt and now it makes sense! Thanks!

I wish you were my teacher! ;) but for real you explain this really well!

Thank you for such a great explanation! easy to follow and understand

This made everything so much clearer!!!!

Thank you for the explanation. It is so clear to me know!

Sooooooo helpful, I was struggling understanding the 2 theories, hopefully I do good on my exam

You are amazing. You have explained it extremely well. Thank you so much.

I am so much clear with these theories now thank you mannnn 🔥🔥🔥💯💯

Awesome Liked it a lot Get everything within 1st time Keep making such stuff Awesome

i cudnt focus on X. my gaze automatically drifted a bit upwards. is there a theory to explain this phenomenon?

Thanks for the remote-camera party trick! 😄 Awesome video🔥

You helped me a lot thank you! Especially the bored explanation was helpful

These videos are amazing. Thank you!!

Woww , that's amazing !! Very Helpful for my exam, thanks ! 🙂

great explanation, thank you so much!

Phenomenally explained 👏👏

you're a legend, thanks mate

This helped so much! Thank you!!!

Thank you!

I would not pass in school if it wasn't for your videos. I wish textbooks were written the way YOU explain things!!!!

Hey man, thanks a lot for this!

Your video really help me a lot !!!

Thank you so much! you're a lifesaver!!!!!!

thank you love you for this!

thanks bro gladly appreciated keep up the good work

Thank you so much life saver!

You're the best teacher

Great video! Thankss

thanks Sir, it was very good

Wait a second...is this an SNL skit about sexism in science/academia??! Hilarious! On point!

Thank you ❤️😊

you are so slay. studying for my biopsych exam. -2024

Thnku♥️ love from india✨️👍🏼

Wow, it's quite explained Well

Having a hard time studying after a long day. This video helped so much and I loved the examples. I was shocked at the woman in the bikini! So cool & thanks again for uploading!

Thanks so much

Tank you for the information (and the almost naked lady)

wow thanks man...

May I know why do I look at some light on LED screens/ electronic candles which is supposingly just yellow light but sometimes I can see the red and green in it? I asked my friends if they do see it but it just seems that I'm the only one able to see the different colours within that 1 colour. Not all the time but sometimes I notice it. I'd appreciate if there is some reasoning :)

that you mean bored is hyperpolarization right? because when they hyper polarized you need much more stimulus (for short time period of time that you said 1 2 seconds)

Thank you so much! but was wondering if you would be able to explain a bit further on how I could be able to answer this question 'Does retinal and cortical physiology support trichromatic colour theory, opponent processing theory, or both? ' xx

Must to see

"stare at X" confused me for a while......

The legendary blue/gold dress debacle explained?!

Thank you. You can teach me any day. 😁

Thank you so much for this, I am in University of London, psychology. I am suffering in biology do you have any tips?

What is Duplicity theory of vision? I am having confusion about it.

so, ghosts could pretty well be all around but if they reflect light of a wavelength that we cannot perceive, we cannot see them !

nice explanation Bro but I not understood properly, the opponent process theory

Great explanation but you couldn't have thought of a different negative afterimage? "Stare at the X, I know it's hard to do." Wtf? Was that necessary??

IDK if this question makes much sense but is it possible to visualize a color we 've never seen?

宝藏博主！

But yellow is not the opposite of blue - orange is. So how does this opposition work?

"I know that's hard to do" AYYYYYYYYYE MAH BOI

Sorry didn't see an X, just kidding! Very helpful video.

Why red and green, why blue and yellow? Red produces a cyan afterimage, green produces a magenta afterimage and blue produces an orange afterimage. It can't be just L and M cones inhibiting each other, they must also be inhibiting S cones.

colors rock

the remote in front of my phone camera didn't work. :O It was working on my tv. :o

its hard to stare at the x!!! 😂

You do such an amazing job explaining this that I was tempted to show the whole video to my AP psych class. Then, you chose to go in a direction at the end that means that I CAN NOT show the whole thing to my class. Please change the end. I respect your right to be a male but when you post an “educational” video - you have power. I will not grant you this type of power in my class. The girls are the best students in my class and I will not grant you the power to minimize them. Ug - be an educator the whole way through. Keep your personal life just that.

Great video, many thanks. It would be absolutely great if there was no use of women's body as a decor object. As expected: guys on the comments making sexist-daddy-jokes about that :(

At 5:16 did anyone here a sound from AMONG US???

whats her name lol

Your speaking is so clear, but why did you need to use a picture of a woman pulling down her bikini bottom for your last illustration? It was distracting. I want to understand the theory, that's why i watched this video. Also, the woman who modeled for money should be paid for her hard work. It is copy right infringement, unless you have permission to use the image. Usually you stay on topic, but some primal part of the human brain got the best of you in this one.

why do you use a top model pic and ask me too fix the × not possible bros hahaha 😂😂😂😂

amazing vid but could you maybe not use the images of potentially naked women, cause if my mum walks in she will never believe me that I was actually studying and that I'm also not gay😶

Good video, but it's slightly sexist to put up an image of a model and then say "I know it's hard to do"... You could quite easily use another more appropriate image.

very nice video, but the choice of the last picture was poor, you could've chosen any picture to just prove science instead of fulfilling your desires to look at a woman and commenting on how hard it is to focus on the x, it made the whole video lose its value to me

Do u have sugar man why u gng fast... Make a understandable video

Nice explanation! But I think using that picture of a halfly naked woman is quite unprofessional and also commenting it in that way is really objectifying and sexist. I was a little shocked.

Why would such an intelligent man include such sexist and demeaning material ???? Not woke at all bro

That humming you hear when he speaks is distracting

*JESUS CHRIST LOVES YOU AND CARES FOR YOU HAVE A GOOD DAY EVERYONE*

You got this twin 🫂

Thank you!