Electroencephalogram (EEG) is a method used to measure and visualize spontaneous electrical activity within the brain. Electrical impulses are the main form of signaling found within the brain; ...

Jena, Germany, 1924: Working in near-isolation and with painstaking tediousness, the psychiatrist Hans Berger observes rhythmic electrical activity from the scalp of human subjects. He is convinced ...

Hypsarrhythmia is an abnormal pattern that appears on an EEG test. This pattern shows up as a specific and recognizable pattern of tall, wide waves on top of the background. Share on Pinterest Getty ...

An electroencephalogram (EEG) is a test that records the brain’s electrical activity. Healthcare professionals use it to help assess and understand neurological conditions, sleep disorders, and brain ...

Add Yahoo as a preferred source to see more of our stories on Google. Brain waves emblematic of generalized epilepsy. Kateryna Kon/Science Photo Library via Getty Images Jena, Germany, 1924: Working ...