I have had five EEG/qEEG's in the past 8 years. They have all been done with the cap. Back in 1970, they used electrodes that clipped to the skin with little spikes like those used to secure an Ace bandage.

I found that it is very helpful to shampoo your hair just before the test. Then, they can get the electrodes to make electrical contact easier. Use a shampoo that does not have a conditioner in it. Conditioning shampoo will likely add oil to your skin. The oil makes the electrical contact more difficult.

My qEEG's each lasted about an hour. EEG's done to test for seizures can last for hours, especially if they include a long sleep period.

The goo in the hair sounds familiar. It takes a good shampoo to get it all out.

The new MEG system sounds like it may promise a more pleasant experience.