The Essential EEG Concepts you MUST master

I discuss the generators of EEG. This topic is essential for medical students, residents, neuroscience students and neurophysiology technologists. Follow me on Twitter

[janeoppenheimer]

Thx! Giving myself crash course on eeg to be able to understand elderly parents test results (brain hemorrhage, neurologist monitoring for seizures).

Your videos very helpful even to novice with no medical background. I am easily able to understand everything you've taught, as you present it so effectively. Been watching many of your videos.

[ast]

This is one of the best online EEG resources I have come across!

[cupcakes]

Thank you for this. I just taking a crash course in neuroanatomy and couldn’t wrap my head around this concept. You simplified it soo much! Thank you!

[rawwdi]

Thank you for what you're doing Sir. Much appreciated !

[kimeshiadaniels]

This was awesome, you eloquently explained. Thank you

[soroushm]

im a desginer trying to use eeg in my research. your videos are extremely helpful

[drbabu]

It was a very lucid presentation, thank you Sir.will you please explain the dipole concepts and types of dipoles and their importance

[researcherhaht]

Your videos are short and very informative, I think you have to make more videos, the animation is very nice, many thanks.

[CoCaleBelle]

This is the best explanation, thank you so much!

[cherokeeagent]

Thank you. A very good tutorial that has helped me to understand more.

[ast]

Can you please do a tutorial on the ACNS 2021 critical care EEG terminology as well?

[Waterlmelon]

Amazing video really and very clear! thank you so much for sharing knowledge!

[ahmadbairat]

God bless you
Thanks for the info :)

[NuNiia]

how does the extracellular current "flow" ? inside a cell, there are axons for that, but how is it in the extracellular area ?

[abantno]

What can protect or block our EEG waves?

[TheKojak]

just a comment: from your explanation your IPSP dipoles are surface negative and your EPSP dipoles are surface positive with current consequently flowing in opposite direction in their respective dipoles. how can then their potential summate in this case? will they not cancel out each other? to my understanding these dendrites should be first radial and their dipoles be either surface positive or negative all together to summate and be recorded. perhaps you should have added that the IPSP electrochemical changes are distal and the EPSP are proximal with opposite sinks and sources. the electrode being unable to discriminate what comes from IPSP and what comes from EPSP, but both their dipoles must be surface positive or negative otherwise their potential will cancel out and nothing will be recorded by the scalp electrodes. Can you also add that the potential that is recorded comes only from the electric field created by the charge of the dipole facing the brain surface whether positive or negative, the opposite charge of the dipole if the dipole is radial is facing the inferior part of the brain and is therefore not possible to be recorded by scalp electrodes on a routine scalp EEG recording.

[fbzggje]

Does the secondary current represent the actual moving of positive ions to the negative charged pole?? Does the sodium for example in reality travels along these lines?

[disguisedgenius]

Thanks. It was helpful. Hey could you clear my following confusion? We know that ERN is sharp negative potential observed corresponding to an incorrect response in tasks. For example, there is two button, red and green. Now, I am ordered to press 'green button' but I pressed 'red button' by mistake. As a result, there will be sharp rise in potentials which we call ERN right? However, say I am ordered to press green button, and I pressed green (correct response) but the green button is not working. As a result, will there be any rise in potentials? If yes, can we call that ERN as well? Because in the second case, my response was correct but the error was in the machine, but I may get excited after not seeing the expected result after pressing a button that is malfunctioning.