The invention relates to a device for the stimulation of thermal receptors in the skin of a patient by means of thermal stimuli. The device comprises a plurality of noninvasive stimulation units for irradiating the skin of the patient with electromagnetic radiation, wherein thermal stimuli are produced by absorption of the electromagnetic radiation in the skin of the patient and the wavelength range of the electromagnetic radiation emitted by the stimulation units can be adjusted. The device also comprises a control unit for controlling the stimulation units.