Theories of colour vision | Physiology of vision | Special senses physiology mbbs 1st year lecture

Physiology lecture on special senses physiology video : vision physiology is about colour perception and the theories
Main theories of colour vision are:
Young Helmholtz theory of colour vison (trichromatic theory of colour vision)
Colour opponent theory (opponent-process theory) of colour vision
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[@shahadyagoub5143]

I’ve never seen an explanation that convinced me more than this , you are a genius

[@PhysiologyOpen]

So glad. Thanks and welcome

[@bublisoniya4292]

Thank you so much ma'am! Didn't realise when the video got over! 😀

[@PhysiologyOpen]

Special comment. Thank you

[@rujulbhavsar8745]

It's the world's best video on the colour vision. Before watching this , I'm totally confused in this topic. But ma'am you explained the whole concept very well and clear all the doubts. Thank you very very much for your help and efforts. 😊😊

[@PhysiologyOpen]

I am so happy . Thank you so much. Nothing gives me more pleasure than clarifying a student stuck in some topic. Best wishes. Keep liking, keep sharing

[@learningdesk6151]

Thank you so much ma'am..GOD BLESS YOU..

[@PhysiologyOpen]

You are most welcome

[@pritomdas7819]

Thanks mam.Can u tell me why Vitamin B12 is given before to start foilc acid??Plz give me the answer with explanation..

[@sivasankarnallapati]

Best explanation mam Super concepts

[@PhysiologyOpen]

Thank you so much 😊

[@AbhishekSingh-lu8tw]

Best explanation in the world, thank you Mam

[@PhysiologyOpen]

My pleasure

[@deivarasanarun6185]

God bless you Mam .❤ Lots of love

[@PhysiologyOpen]

Thank you

[@safasalim2771]

thank you very much ❤️❤️

[@PhysiologyOpen]

Most welcome

[@pavithralekshmis19]

helped me Thank u mam😍

[@PhysiologyOpen]

My pleasure

[@aaqil8344]

Ma’am, in the color opponent theory, how is it that red color (or red cones) excite a ganglion cell while green color (or green cone) inhibits the same ganglion cell given that all cones release the same excitatory neurotransmitter ‘glutamate’?

[@PhysiologyOpen]

Very good question..in between there are bipolar cells too...detailed answer with probably an image tomorrow

[@aaqil8344]

@@PhysiologyOpen thank you ma’am!

[@insomnia6963]

@@PhysiologyOpen thank you for the explanation. where can i find that detailed video? its not on the playlist.

[@PhysiologyOpen]

@@insomnia6963 No detailed video - though I will tell you how it acts - sorrounding cones excite horizontal cells which in turn release inhibitory neurotransmitter which inhibit the ganglion cell

[@drraziyakhadervali9421]

Thank you mam

[@PhysiologyOpen]

You are welcome

[@dranandbadwe4357]

Good explanation

[@PhysiologyOpen]

Thank you Sir

[@moizjawed5307]

THE BEST

[@PhysiologyOpen]

So glad

[@meenagupta6363]

Highly & cleanly discribe every thing

[@PhysiologyOpen]

Thank you

[@bhaskararaosiripurapu7252]

Superb mam

[@PhysiologyOpen]

Thanks

[@Crack-mbbs]

Best videl

[@PhysiologyOpen]

Thanks

[@pragatiacharya1282]

Wow 🔥

[@PhysiologyOpen]

😊

[@manojmaheshwari4055]

At 7:01 , both colour appears to be gray for me ?

[@PhysiologyOpen]

Yeah it can...all people see colours differently

[@hasanshobuj6838]

🔥🔥

[@PhysiologyOpen]

😊

[@chethan4298]

1st view 1st like

[@PhysiologyOpen]

Super

[@shototodoroki7458]

maam i could tell the color was grey even with the blue ring? does that mean im tetrachromate?🤔

[@PhysiologyOpen]

No, with trichromats also, perception varies. Also I should have used a white background on whole rather than yellow..that’s a error on my part

[@diwakarkoirala4879]

I guess I am tetrachromats, I can see different colors 4:52

[@PhysiologyOpen]

May be ! May be not ! Even trichromats have different perception for different colours. So may be what appears same to me, may appear different to others. However tetrachromats have a more varied perception of colours. So both may be an explanation for this discrepancy. However, it needs to be corroborated from your day to day experience with others.

[@sivakumar-ri6ib]

Ma'am, where do you refer?... Do u use Indian authors like Gk pal, indhu kurahna?..

[@PhysiologyOpen]

Nope- it’s Guyton, Ganong mainly - and for any confusion just in case textbooks of each system

[@PhysiologyOpen]

Why any issue?

[@sivakumar-ri6ib]

@@PhysiologyOpen no ma'am, I couldn't get such details, in Indian authors...Thanks

[@PhysiologyOpen]

That you won’t . It’s purely great books and my understanding over years. Hope you liked it

[@aiims_boy_rabiul]

Thanks maam its helpful but opponent theory is not clear 😢

[@PhysiologyOpen]

Signal in the center is opposed by sorrounding cones if they are stimulated…that’s it…hence surround affects center colour perception

[@competitivematerial7115]

Fabulous

[@PhysiologyOpen]

Thanks

[@applewhite6544]

🙏🙏🙏🙏🙏🙏

[@PhysiologyOpen]

Thank you

[@rishitnougai]

A little feedback, the pace of the video is a bit fast. You’d narrated the information rather than explaining it.

[@PhysiologyOpen]

Thanks for feedback…yeah improved on explanation but in recent videos…have a look

[@rishitnougai]

@@PhysiologyOpen For sure mam!

[@optom2716]

Mam just say one Hi plz

[@PhysiologyOpen]

Hi

[@RohitPrasad-ep5wu]

Thanks mam

[@PhysiologyOpen]

Welcome