MR / Schenectady, NY.St. Clare's Hospital.Boy (15) is prepped by technician for EEG (electroencephalogram)..Wires under cotton are connected to an electroencephalograph, which measures electrical activity of the brain. 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