Nemastrina monkeys with multiple electrodes implanted in the amygdaloid area of the brain were used to study the relationship of electrical seizures and overt behavior. The electrical seizures were produced by long duration electrical pulses administered through the implanted electrodes. There appears to be no relationship between this kind of electrical seizure and lever pressing performance. Relationships between depth EEG, depth impedance, DC potential and surface EEG are observed and as a consequence some ideas concerning the genesis of the electroencephalogram are put forth.
McCrum, W. R.; Lee, R. M.; van den Ende, H.; Proctor, L. D.; and Lee, J. A.
"Studies of the Electrical Parameters and Behavioral Effects of an EEG ''Seizure Discharge","
Henry Ford Hospital Medical Journal
: Vol. 17
Available at: https://scholarlycommons.henryford.com/hfhmedjournal/vol17/iss2/2