What is typically advised regarding hair treatments prior to an EEG?

Before an electroencephalogram (EEG), it is typically advised to avoid washing hair. This is because washing hair can remove natural oils and dirt that may be important for skin conductivity, which is essential for accurate EEG readings. Clean hair can sometimes lead to poor electrode contact, potentially interfering with the quality of the test results. The presence of these oils can help facilitate a better connection between the scalp and the electrodes used during the procedure.

Options related to styling, washing with conditioner, or applying gel involve actions that could either clean the hair or alter its natural state, which may not be advisable immediately before the EEG. Therefore, refraining from washing hair is crucial to ensuring the best possible conditions for conducting the test.