Brain waves emblematic of generalized epilepsy. Kateryna Kon/Science Photo Library via Getty Images Jena, Germany, 1924: Working in near-isolation and with painstaking tediousness, the psychiatrist ...
Hans Berger recorded the first human EEG in 1924. EEG records electrical activity via 16–25 scalp electrodes. Focal “slowing” in brain waves can indicate tumors or lesions. Patients must avoid ...
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