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Monitoring on a brainwave machine, 24 April 1950.

Monitoring on a brainwave machine, 24 April 1950.
4 0 c m
actual image size: 24cm x 32cm


'Twenty minutes with the brainwave machine'. Photograph shows a brainwave recording in progress at London Hospital. The patient lies on a couch and is required to close her/his eyes in order to relax the brain. The 20 minute session is a humdrum siesta for the patient, during which 50 feet of recording is taken. The passage of each second is marked on the broad graph-tape'.

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© Daily Herald Archive / National Science & Media Museum / Science & Society Picture Library

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