A technician measures your head and marks your scalp with a special pencil to indicate where to attach the electrodes.Here are some things you can expect to happen during an EEG: The electrodes don't transmit any sensations.
You'll feel little or no discomfort during an EEG. Some people wear an elastic cap fitted with electrodes, instead of having the adhesive applied to their scalps. The electrodes are connected to the EEG machine with wires. In a high-density EEG, shown here, the electrodes are closely spaced together. It does not store any personal data.During an EEG, flat metal discs (electrodes) are attached to your scalp. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. With the help of an EEG, a doctor can help a patient effectively deal with a sleep disorder through a well-thought-out treatment plan. This is why an EEG is a helpful tool not just in diagnosing a sleep disorder but in pinpointing the cause of the disorder. Through the use of an EEG, it is possible to record brain waves that indicate whether a person is sleeping well or not. A sleep specialist can then isolate the source of the sleep disorder and formulate a treatment plan. By monitoring a rise or decline in Delta waves and cross-checking it with other factors that occur at the same time, a doctor can pinpoint an external factor that is preventing a patient from getting deep sleep. Delta waves indicate the deepest levels of relaxation and restorative sleep. This is why doctors also call Stage 3 of sleep as Delta Wave Sleep. In fact, the stages of sleep were first discovered via the use of EEG. Different brain activities correspond to different stages of sleep. The EEG readings can give a doctor a clearer picture of a patient’s sleep patterns. This is a non-invasive test and is safe even for children.
While connected to an EEG, the sleep specialist monitors the stages of sleep of a patient. During the said test, a patient stays overnight in a medical facility. Doctors use EEG as part of a sleep study or polysomnography. On the other hand, a person with lesions on the brain may show unusually slow EEG waves.Īn EEG is also useful in diagnosing narcolepsy and insomnia. For example, rapid spiking waves on an EEG may indicate the presence of epilepsy. They are also printable so a patient can bring it to a healthcare provider for interpretation.Īn EEG is useful in evaluating several types of brain disorders. These charges appear as a graph viewed on a computer screen. The electrodes then detect tiny electrical charges produced from the activity of the brain cells. These electrodes have wires connected to a computer. This test uses electrodes made of small metal discs that get pasted on the scalp of the patient.
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Read our full medical disclaimer.Īn Electroencephalography (EEG) is a test that can detect abnormalities in the brain waves or the electrical activity of the brain.
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The information on this website is not intended to replace a one-on-one relationship with a qualified health care professional and is not intended as medical advice.