Mingograph 1600 multiple EEG recorder

 © Technisches Museum Wien, Photo: Peter Sedlaczek
Collection Area
Technical and Scientific Principles
Medical and Biotechnology
1970 - 1979
At the moment this object is not published in the museum.

Many processes in the human body are related to electrical currents. By use of sensitive devices these can be picked up on the skin surface and recorded.

The idea of measuring brain currents comes form the neurologist Hans Berger. In 1924, he started on the first experiments for conducting current from the cerebral cortex. Thanks to the development of sensitive measuring amplifiers, it is no longer necessary to place the electrodes directly on the brain. They are attached to numerous places on the scalp.

Various areas of the brain produce different activities according to the stimulus exerted on the person. For this reason, recording equipment has several built-in channels that record the voltage fluctuations in form of curves on a moving paper strip. This produces an electroencephalogram (EEG), which provides the doctor with valuable information regarding the activity of the brain.

Disruptions can be seen on the EEG. However, it is also an important aid in research into thought processes, hearing, sight, speech, sleep and trance states. It has been shown that particular activities are allocated to specific areas of the brain. When the activity occurs, the curved shape of the EEG changes in a characteristic way. So it is possible to read from the EEG the activity on which the person is currently concentrating.

Manufacturer: Siemens, Erlangen
Date of construction: around 1970

Inv.Nr. 57642/1

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