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In the first 57 pages the author reports his own experience with depth electrode recording obtained while working with Prof. A. E. Walker in Baltimore. In the last 55 pages he reviews all the published work on depth recording, including that relating to mental disease, tumors, dyskinesias, and coma. The appended bibliography comprises 280 titles.
The author notes that in several patients during the first three days after implantation depth electrodes recorded very high amplitude steep slow waves; he regards these waves as artifacts which then disappear and never recur. Waking and sleeping simultaneous scalp and depth patterns from various areas at rest and during clinical seizures and the electroencephalographic and clinical effects of auditory and electrical stimulation are described and briefly illustrated.
Seizure discharges may be recorded in the depths with no change in the scalp pattern and without awareness on the part of the patient or an observer
Simons DJ. Exploration du cerveau humain par electrodes profondes. Arch Neurol. 1961;4(4):467–468. doi:10.1001/archneur.1961.00450100115016
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