The invention provides a system for positioning a TMS stimulating device on a predetermined treatment point on an individuals head. The system includes a cap adapted to be worn on the individuals head. The system also includes one or more markers adapted to be affixed onto an outer surface of the cap that are used in positioning a TMS stimulating device on or adjacent to the treatment point. The markers may be provided with a device that generates a detectable signal. The system could then include a detector associated with the TMS stimulating device that detects the signals generated by the markers. Signals detected by the detector are analyzed in order to determine a position of the TMS stimulating device relative to the treatment point.