An EEG is a safe, non-invasive test used to help your doctor understand how your brain is functioning. Many people feel nervous or unsure before their study — this page is designed to help you feel informed and comfortable.
An EEG may be ordered to help evaluate symptoms such as changes in awareness, episodes of confusion, memory concerns, or other neurological symptoms. The test records brain wave activity and provides information your neurologist uses as part of your overall care.
What to Expect During an EEG:
• The test is painless and does not involve electricity going into your body
• No needles are used, and nothing is injected into your body
• Small sensors are placed on your scalp to record brain activity
• You will be asked to relax and follow simple instructions
• Most studies last between 30 minutes and several hours, depending on the type ordered
How to Prepare for Your EEG:
• Wash your hair the night before or the morning of your test
• Do not use hair products such as gel, spray, oils, or conditioners
• Eat your normal meals unless your doctor gives other instructions
• Take your medications as prescribed unless told otherwise by your doctor
• Wear comfortable clothing
• If your study includes sleep monitoring, your doctor may give specific sleep instructions
• Do not use hair products such as gel, spray, oils, or conditioners
• Eat your normal meals unless your doctor gives other instructions
• Take your medications as prescribed unless told otherwise by your doctor
• Wear comfortable clothing
• If your study includes sleep monitoring, your doctor may give specific sleep instructions
In-Home EEG:
Some EEG studies can be performed in your home. This option is helpful for patients who have difficulty traveling or who require monitoring in a familiar environment.
In-Clinic EEG:
Other EEG studies are completed in a clinic setting. Your neurologist will determine which option is most appropriate for your specific needs.
Ambulatory EEG:
Once your EEG is complete, the recorded data is reviewed and interpreted by your neurologist. Results are discussed with you by your doctor, who will explain what they mean for your care.
If you have questions before or after your study, your healthcare team is available to help guide you through the process.