We used glutamate weighted Chemical Exchange Saturation Transfer (GluCEST) imaging to investigate changes in glutamate contrast in the brains of young, healthy adults undergoing transcranial magnetic stimulation (TMS) to the motor cortex. Subjects were scanned to acquire a 2D GluCEST map of a slice which includes the motor cortex, then removed from the scanner and given continuous theta burst stimulation (cTBS). Subjects were scanned again post-stimulation. The resulting images show a trend of decreasing GluCEST contrast in the gray matter of the motor cortex where stimulation was administered. Interestingly, initial GluCEST values appear to predict response to TMS.