[Presentation of equipment: the monitor of cerebral function].

From a pair of parietal electrodes, an original apparatus--the monitor of cerebral function--gives a non-stop recording of the brain electric activity for frequencies ranging from 2 to 15 Hertz. It is at the moment less expensive than an ordinary EEG apparatus, easy to carry, to use and to read. The artefacts, interferences or technical defects are either totally eliminated or immediately detected thanks to a parallel graph. It is the first apparatus that has been conceived and used as a routine instrument for cerebral monitoring. It can be used in the Intensive Care Unit as well as in the Operating Theatre:--preventively, whenever there is a risk of an alteration in the cerebral circulation (CEC - extracorporal circulation - for instance - as a diagnosis, a prognosis or a therapy when there is a cerebral lesion (whatever the origin of it can be). The use of this apparatus (that has now become part of the daily routine at the London Hospital) has quickly proved indispensable and the common EEG is no longer being resorted to except upon very few occasions.