Mesothelioma can take a long time to develop, and the symptoms of the disease often do not present themselves until the cancer has progressed to later stages. Early signs of mesothelioma can be easily mistaken for common, everyday ailments, and as a result, early symptoms are often ignored, dismissed, or misdiagnosed.
Freebase(0.00 / 0 votes)Rate this definition: Electroencephalography is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain.
An electroencephalogram (EEG) is a recording of brain activity. During the test, small sensors are attached to the scalp to pick up the electrical signals produced when brain cells send messages to each other.hen an EEG is used. An EEG can be used to help diagnose and monitor a number of conditions affecting the brain. It may help identify the cause of certain symptoms â such as seizures (fits) or memory problems â or find out more about a condition you've already been diagnosed with.