The full form of EEG is Electroencephalogram. It is a process used to assess the electrical activity of the brain. Electrical impulses are how brain cells, or neurons, communicate with one another. The EEG provides a brain wave metric representing how the brain works over time. It recognises and records the electrical impulse patterns of the brain.
- The apparatus that users use to conduct the test comes with tiny metal discs labelled electrodes with a small wire inside them.
- The electrodes are attached to the scalp, and data from these electrodes are sent to the computer to track the outcome.
- Routine brain activity, it creates a standardised or recognisable pattern; nevertheless, for abnormal brain activity, the pattern can change or become unidentifiable.
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Working principle of EEG
- The EEG procedure is safe and pain-free.
- The electrodes mounted on your scalp gather electrical activity from neurons in your brain and transmit it to a system where it is shown as a sequence of lines on a computer monitor (running paper).
- After receiving the results, the technician removed the electrodes.
- An expert in the brain, such as a neurologist, can examine the recordings of your brain waves.
Why does the doctor suggest the individual take the EEG test?
The EEG is carried out to treat specific health conditions or in the following cases:
- To diagnose and track seizure diseases
- To detect sleep disorders & epilepsy
- To figure out the source of several other issues, like sleep disorders and behavioural change issues.
- After a major head injury or before a liver or heart transplant, to determine brain activity.