A device for evoking a temporal summation of pain in a subject. The device comprises a stimulation element (SE) arranged generating a physical stimulation on a skin surface area of at least 20 cm2 according to a control signal (CS), where the stimulation (PS) evokes pain in the subject. A processor (PR) generates the control signal (CS) to the stimulation element (SE) so as to provide a repetitive stimulation pattern comprising at least repetitions of: a)applying stimulation for a period (SP) of 0.5-120 seconds, b)stopping stimulation for a period (TP) of 0.5-20 seconds. Preferred periods are 1-3 seconds for both stimulation and intermediate stopping periods. The stimulation element may include an inflatable tourniquet arranged for providing a compressional stimulation of an arm or a leg. However, other types of stimulation elements may be used such as electric, heating, mechanical stimulation or the like may be used. The device is suited for providing a measure of temporal summation in a subject with different intensities, and this measure can be used for determining if the subject suffers from central nervous sensitization which is an important diagnosis with respect to effective analgesic treatment. In some embodiments, the device is arranged to collect pain responses during the stimulation and to calculate a measure of temporal summation of the subject accordingly, e.g. in the form of a rate of pain change (VAS) versus time (T).
