Which one of the following statements about EEG is true?
(A) Alpha rhythm is most marked at parieto-occipital area # Alpha Rhythm > In adult humans who are awake but at rest with the mind wandering and the eyes closed, the most prominent component of the EEG is fairly regular pattern of waves at a frequency of 8-12 Hz and an amplitude of 50-100 uV when recorded from the scalp.> This pattern is the alpha rhythm.> It is most marked in the parieto-occipital area, though it is sometimes observed in other locations.> A similar rhythm has been observed in a wide variety of mammalian species.> In the cat it is slightly more rapid than in the human, and there are other minor variations from species to species, but in all mammals the pattern is remarkably similar
Alpha rhythm is most marked at parieto-occipital area
Beta rhythm is most marked at region below mastoid
In REM sleep, patient is awake
EPSP and IPSP of the cortical cells acting as dipoles
Nervous System