What does Electroencephalograms mean? Can someone explain in a very simple way ....?

Question

What does Electroencephalograms mean? Can someone explain in a very simple way ....?

Answer 1

a recording of the potentials on the skull generated by currents emanating spontaneously from nerve cells in the brain.

like this

http://img.tfd.com/dorland/thumbs/electr...

Answer 2

A graphic record (a piece of paper or s screen on a computer) of the electrical activity (all the stuff your brain does) of the brain as recorded by an electroencephalograph

electroencephalograph is an instrument for measuring and recording the electric activity of the brain.  

Answer 3

It depends on the context. Is it appraised as a fluid viscerally vehicle in the fourth voice or is it a dominating conjectural cravatted tense in a benign state? Context, context context...i personally think (trouble!!!) if you can spell it then you can tell it.

Answer 4

(EEG) is the measurement of electrical activity produced by the brain as recorded from electrodes placed on the scalp.

Just as the activity in a computer can be understood on multiple levels, from the activity of individual transistors to the function of applications, so can the electrical activity of the brain be described on relatively small to relatively large scales. At one end are action potentials in a single axon or currents within a single dendrite, and at the other end is the activity measured by the scalp EEG.

The data measured by the scalp EEG are used for clinical and research purposes. In some cases, such as epileptic studies, deeper brain activity cannot be recorded accurately or not at all by scalp EEG. Clinicians then use an invasive form of EEG known as intracranial EEG (icEEG) where electrodes are placed directly inside the skull. In some cases, a grid of electrodes is laid on the external surface of the brain, on dura mater yielding epidural EEG but in other cases, brain activity is recorded using deeper electrodes known as subdural EEG (sdEEG) and electrocorticography (ECoG). Because of the filtering characteristics of the skull and scalp, icEEG activity has a much higher spatial resolution than surface EEG. The technique is sometimes also referred to as stereotactic EEG (stereo-EEG or sEEG) to emphasize that it records from precise 3D locations defined by stereotaxy. However, since icEEG uses macro-electrodes for recording it can not detect single-neuron activity as it is feasible with neural implants based on micro-electrodes.

Answer 5

Electroencephalogram (EEG) Recording of electrical activity from the brains of animals was first reported by the British physiologist Caton in 1875. Berger, a German psychiatrist, described the human EEG in 1929, but it was only after a further description of ‘the Berger rhythm’, by Adrian and Matthews in Cambridge five years later, that it began to be used in research and diagnosis.

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