Electroencephalogram (EEG) is used in monitoring

Q. Electroencephalogram (EEG) is used in monitoring

(A) heart
(B) liver
(C) pancreas
(D) brain
(E) None of the above/More than one of the above

Answer. Brain

An electroencephalogram (EEG) is a test that detects electrical activity in your brain using small, metal discs (electrodes) attached to your scalp. Your brain cells communicate via electrical impulses and are active all the time, even when you're asleep.

The history of EEG is detailed by Barbara E. Swartz in Electroencephalography and Clinical Neurophysiology.In 1875, Richard Caton (1842–1926), a physician practicing in Liverpool, presented his findings about electrical phenomena of the exposed cerebral hemispheres of rabbits and monkeys in the British Medical Journal. In 1890, Polish physiologist Adolf Beck published an investigation of spontaneous electrical activity of the brain of rabbits and dogs that included rhythmic oscillations altered by light. Beck started experiments on the electrical brain activity of animals. Beck placed electrodes directly on the surface of brain to test for sensory stimulation. His observation of fluctuating brain activity led to the conclusion of brain waves.