Photoreceptors, Receptive Fields, and Lateral Inhibition (Intro Psych Tutorial #45)

[@ankitagautam7190]

I was having real issues in understanding this one topic, checked so many videos, and finally arrived on this. Wow, you made this simpler than ever. Thank you so much.

[@PsychExamReview]

Glad to hear that, thanks for commenting!

[@wasabby24]

Thank you so much! I've been trying to understand this topic with some handouts our professor gave us and it's so hard to try and understand this on your own. This really helped me a lot!

[@PsychExamReview]

I'm glad to hear that, thanks for commenting!

[@anticoreantimatter8762]

This is the best explanation to lateral inhibition so far

[@PsychExamReview]

Thanks, hope it was helpful!

[@bea-wj3vf]

thank you so much, i was trying to really understand receptive fields for 2 days now and with your video, it clicked! :)

[@PsychExamReview]

That's great, glad I could help!

[@zeynepzaim5661]

me too thank you so much, I am grateful!

[@oliviataylor5001]

I'm here an hour before my test, and this review helped so much and now I feel more confident! Clear, to the point and very helpful. Thank you!!

[@PsychExamReview]

You're welcome, hope you do well on your test!

[@HR-qo3lh]

These videos are so helpful, just the right length and you describe things in a much more dynamic way than my university lecturers , perfect for revision

[@PsychExamReview]

I'm glad to hear that, thanks for commenting!

[@Neptoid]

Thanks for sharing, I have noticed the Mach band effect when working in design, finally I get validation

[@verite977]

I couldn't get this concept until I listened to your explanation. I seriously wish you were teaching my classes. Thanks for the uploads!

[@PsychExamReview]

You're welcome, glad I could help you understand it!

[@cesar7hdz]

Just saw this today , after about 2 minutes I subscribed to the channel and turned the notifications on ! Very helpful can't wait to see more videos!

[@texzinha]

Thank you so much for this video! It makes learning biopsych so much easier.

[@PsychExamReview]

You're welcome, glad to hear that!

[@Jenauxn]

You clarified my understanding of this topic significantly. Thank you.

[@PsychExamReview]

You're welcome, glad to hear that!

[@aleynagore4772]

I have been looking for this subject, and I watched many videos related to that. However, finally, I found something I needed. I love that channel so much. Thank you for the clear explanation.

[@PsychExamReview]

You're welcome, thanks for commenting!

[@haleyw8601]

You're so good at explaining stuff, way better than my uni lecturer

[@PsychExamReview]

Thanks, hope my explanations are helpful!

[@sophiasarwary7840]

AMAZING EXPLANATION as usual!

[@PsychExamReview]

Thanks!

[@MikeB-sp6gp]

That whole thing about not being able to see color in low light? So fucking interesting!

[@arianegracelamberte1582]

thank you so much!! my professor actually wasn't able to discuss this during our face-to-face discussions bc the pandemic and he DID NOT bother to do a video like this for us, his students. I was really struggling to understand the visual system topic and THANK YOU SO MUCH I UNDERSTAND IT PRETTY WELL NOW :) and our finals is tomorrow, so im also cramming HAHAHH thanks again!

[@PsychExamReview]

Glad I could help, best of luck on your exam!

[@shawnacampbell6276]

I like your teaching style. It was very helpful

[@PsychExamReview]

I'm glad to hear that, thanks for commenting!

[@annamariadelloso5456]

thank you, I was studying for upcoming exams and this made it so clear. I'm very grateful.

[@PsychExamReview]

You're welcome, glad I can help!

[@christinepitinyane]

I love how to explain with real life examples. It makes me really understand. Thank you for your videos

[@PsychExamReview]

You're welcome, I'm glad they're helpful!

[@lynnkillian9764]

thank you. Made complete sense, for once. I am a subscriber.

[@PsychExamReview]

You're welcome, glad to hear that it helped!

[@ortadogufaresi]

You're super hero! ❤️❤️❤️

[@sankhayanbhaumik6452]

Thank you so much sir......

[@inertingd373]

Superb, thanks for the explanation From france, toulouse

[@PsychExamReview]

You're welcome!

[@kawaiiutau]

So helpful! Thank you!

[@PsychExamReview]

You're welcome!

[@brodiemelissa7859]

This was very helpful thankyou !

[@PsychExamReview]

You're welcome!

[@ChrisBranleh]

Thank you for using real life examples. The Benjamin Franklin quote made me lol.

[@PsychExamReview]

You're welcome, glad you liked it!

[@ChrisBranleh]

@@PsychExamReview I looked everywhere to try to find an application to the concept of off center and on center bipolar cells, and you were the only one who could explain it with a real life example. Again, thank you!

[@farahali4022]

very helpful ! great video

[@maytal2079]

wow! What a great explanation thank you!

[@PsychExamReview]

Thanks, I'm glad you found it helpful!

[@ExistenceUniversity]

Look at this: you got me coming back. Better just subscribe at this point.

[@PsychExamReview]

Nice, hopefully I'll have some new videos out soon!

[@ExistenceUniversity]

@@PsychExamReview well plenty to catch up on in the meantime

[@PsychExamReview]

@@ExistenceUniversity Enjoy!

[@mariannemottier147]

Thank you !very helpful!

[@PsychExamReview]

You're welcome!

[@hannahcarmen4845]

Very helpful, thanks a lot

[@PsychExamReview]

You're welcome!

[@tasneemqaisi7340]

Thanks a lot!

[@PsychExamReview]

You're welcome!

[@AmaTorLerr]

You saved me!

[@simonesquared]

legenddd

[@raechels.5691]

Hello! I am just curious if this thought would ring true based on the information you presented. If a person damaged, or was born without the functioning of horizontal cells would that translate to their inability to recognize contrast in objects within the visual field? Thank you for your thoughts, your presentation of this material was SO helpful!

[@PsychExamReview]

Hi Raechel, the horizontal cells are intermediaries that integrate the information between the photoreceptors in a receptive field and the bipolar cells. I'm not a vision specialist so I don't know about specific conditions directly related to horizontal cells but I think you're generally correct that problems with this process would likely interfere with detecting contrast and would probably also influence the ability to adapt to different levels of light.

[@cinthiadharo3224]

thank you

[@PsychExamReview]

You're welcome!

[@stoicunknown6246]

The statement " If you want to observe a very dim star, the secret is to look next to it, dont look directly at it. and in Lateral inhibition, exaggerates contrast . your eye focus is more on the white dot in a dark surrounding. Does lateral inhibition doesnt apply in the statement above about stars ?

[@PsychExamReview]

This actually relates to the distribution of rods and cones in the retina, which I discuss in a video I just uploaded on peripheral color vision. I don't discuss the star example, but essentially you don't have any rods in the very center of your vision, but about 10-20 degrees away from the center is where rod density is greatest. So if you want to observe a dim light (not bright enough to stimulate your cones) in low-light conditions, directing it to this part of your visual field would be best. Hope this helps!

[@Medita617]

What about S. P. Infusion of norepinephrine and it's carbon rings ! What is the combination behind it and carbon rings of serotonin ? Every chemical compound has it's endemic rethum or wave generated according to varying ionization energy when excited , and so it's a matter of short circuit . Mind is , How we react to signals from environment and it's the medium We recoganize them. So if environment is infused with the unsuitable , then our surroundings would also be confused ?

[@PsychExamReview]

Sorry, I'm not quite sure I understand your question, or if I would be able to answer it if I did 😅

[@psychvision101]

Dude I really liked the Mach joke. Just so you know lol.

[@PsychExamReview]

Haha, thanks, glad someone liked it!

[@dazclean]

Hello, this may be completely wrong but can this be related to opponent process theory of colour? The opponent colours can be distinguished in one receptive field with on and off centre? Or am I completely off the mark?

[@PsychExamReview]

You're correct, receptive fields have center and surround areas for opponent colors (for instance a receptive field for a "red center / green surround" ). You can find a brief summary of this here: courses.washington.edu/psych333/handouts/coursepack/ch14-Color_vision.pdf or Craig Blackwell has an excellent video on color vision here: kzbin.info/www/bejne/jJangKN9h7KNbbs

[@dazclean]

PsychExamReview thank you!

[@saraabdelmoniem2308]

hello,,just wanna know more why we dun c a yellowish blue color or a greenish red one??

[@Bentami]

All cats are grey in the dark, you cheeky bastard

[@Areusureboutdat]

u cute