What are the wave patterns seen in an EEG scan?

Question: What are the wave patterns seen in an EEG scan?
- Keywords:
  eeg
Asked by Brad to Alejandra on 6 Mar 2017.
- Alejandra Aranceta answered on 6 Mar 2017:
  
  Hi Brad,
  
  I can tell that you are very much into electrophysiology, excellent! The wave patterns seeing in an electroencephalographic (EEG) scan are the result of all your neurons firing whilst you do a certain task, or even whenever you think of something. You have different waves and different activation points on your brain depending what activity/task you are doing. Did you know that emotions also create a certain wave pattern in your brain? Whenever you are happy, or sad, or angry, the wave patterns are different!

Brad commented on 9 Mar 2017:

I didn’t know that! Very interesting, and i am very much into electrophysiology!

Question: What are the wave patterns seen in an EEG scan?