MR / Schenectady, NY.St. Clare's Hospital.Boy (15) is ready to be prepped for EEG (electroencephalogram)..using an electroencephalograph, which measures electrical activity of the brain..Boy (on medication for anxiety) is nervous about the procedure. One of a series of photographs chronicling the growth and human development of the same person from infancy through to adulthood..MR: Sen3.©Ellen B. Senisi