- Joined:
- Apr 17, 2010
- Posts:
- 19,670
- Liked Posts:
- 6,438
- Location:
- Chicago
A doctor who suspects that you have a seizure disorder will order a test called an EEG (electroencephalogram). They glue little wires over your head and connect them to a machine that measures electrical activity in your brain. Each of the wires measures little tiny bits of electricity generated by the brain. If you look at an EEG while it's recording, there'll be a bunch of needles jumping up and down over a long piece of paper. Remember all those billions of neurons? They all generate a little bit of electricity. Put a few billion together and you start to get some voltage (estimated to equal a 60 watt light bulb).
Getting an EEG is not a lot of fun. It's not painful, but it's basically annoying. Why is it annoying? Many doctors want you to stay up the entire night before. They won't let you sleep or they let you sleep for just a few hours before you go in for the test. Why do they want you to do that? Ever bring your car into a mechanic when it’s been making a really nasty noise, only to have it not make the noise when the mechanic is looking at it? The EEG has the same problem. The abnormal activity may not be going on when it is recording. So if you’re really tired, you're more likely to have some abnormal electrical activity. One of the problems in detecting a seizure with an EEG is that the brain may be behaving itself while the recording is going on. An EEG is really a device that only tells us something if the brain is being abnormal during the test. A normal EEG does not eliminate the possibility of a seizure disorder. Another annoying part of the EEG is the glue used to attach wires to the head during the test. In order to get a good contact between the wire and your head, they use a glue that holds the wire in place. Many complain that the EEG glue takes a couple of days to wash out of their hair.
Link
If you want, read the entire article.
Just wanted to post a part I spotted that I went through.
There may be more but I wanted to keep it short.