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May 1950

Clinical Electroencephalography.

Arch NeurPsych. 1950;63(5):842. doi:10.1001/archneurpsyc.1950.02310230164019

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The results of integration of the clinical and electroencephalographic findings in approximately 10,000 cases are reported. The subject material is presented in the form of an atlas. Interpretation of the electroencephalographic pattern and pertinent clinical data are presented opposite adequate samples of the original record.

A short, but adequate, discussion of the electroencephalogram is followed by examples of the normal pattern and its variations. The distribution of normal (85.6 per cent) and abnormal (14.4 per cent) patterns for subjects without neurologic disease is confirmatory of previous reports.

The incidence of electroencephalographic abnormalities associated with cerebral neoplasms, cerebrovascular disease, traumatic injuries to the brain (old and new) and epilepsy are essentially the same as that found with other types of similar material. Return of the electroencephalogram to normal after traumatic lesions, accidental or induced, is similar.

Included in the technic of recording brain waves at the naval hospital at Bethesda, Md.,