Barack and Michelle Obama did not adopt either of their two daughters. Perhaps you are thinking of Mr. Obama's 2008 opponent, John McCain-- he and his wife Cindy did adopt a lâ¦ittle girl from Bangladesh.
The test itself will take about 30-60 minutes. Placing the electrodes usually takes 20 minutes, but can take up to an hour, so the entire procedure may take about one to 2 hours. If you have an ambulatory EEG, brain activity is recorded for 24 hours or more.
An EEG, or electroencephalograph, is a test to measure brain activity. During an EEG, numerous electrodes in the form of patches are applied to the head. These electrodes detect the electrical activity in the brain, and a graph of that activity is generated.