THE ELECTROENCEPHALOGRAM ASSOCIATED WITH EPILEPSY

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Abstract
The present paper deals chiefly with the interpretation of the electroencephalogram when used as a diagnostic aid in the study of epileptic patients between seizures. Hughlings Jackson1 remarked: I submit that it is well also to consider that the warning in any paroxysm signifies the seat of a discharging lesion, that the warning is in that sense localizing. Electroencephalography has shown that even preceding the warning there is frequently a localized abnormal electrical discharge from the brain, and in many cases this occurs almost constantly as a subclinical phenomenon. One therefore has an opportunity in a large number of instances of discovering the "seat" of origin of the potential changes, especially if the patient is studied between clinical seizures, when this may be localized, rather than at the height of a convulsion, when the electrical disturbance, like the clinical manifestations, may be generalized. The problem of the electroencephalographic classification

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