Answers

2014-03-22T20:34:59+05:30
EEG stands for electroencephalograph it is use to detect brain's spontaneous electrical activity along the scalp.
where as 

ECG stands for electrocardiograph use to detect electric activities of the heart.

ECG is for a longer period and EEG is for a shorter period of time..
hope this helps..
wishes
tushita... :)
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