elektroenkefalography

Electroencephalography, commonly abbreviated as EEG, is a non-invasive neurophysiological monitoring method that records the electrical activity of the brain. It is typically performed by placing small metal discs, called electrodes, onto the scalp. These electrodes detect the subtle electrical impulses generated by the synchronized firing of neurons in the brain. The signals are then amplified and recorded by a machine, which displays them as a series of wavy lines on a screen or paper.

The patterns of these brainwaves can vary depending on the individual's state of consciousness, such as wakefulness, sleep, or altered states. EEG is a valuable diagnostic tool used by medical professionals to identify and monitor a variety of neurological conditions. It is particularly useful in the diagnosis and management of epilepsy, as it can detect abnormal electrical discharges that characterize seizures.

Beyond epilepsy, EEG can also aid in the investigation of sleep disorders, brain tumors, stroke, encephalitis, and other brain injuries. It plays a role in determining brain death and in monitoring brain activity during surgery or in intensive care settings. While EEG is a powerful tool, it is important to note that it measures electrical activity, not the specific thoughts or emotions of an individual. The interpretation of EEG results requires specialized training and is often considered in conjunction with other clinical information.