How does an EEG detect brain activity?

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Tags

1. #activity
2. #discs
3. #charges
4. #waves
5. #brain
6. #small
7. #procedure
8. #electrical
9. #detects
10. #cells
11. #consisting
12. #scalp
13. #abnormalities
14. #during
15. #electrodes
16. #result
17. #detect
18. #pasted
19. #wires
20. #metal