A beam waveguide may include a first set of dual offset reflectors and a second set of dual offset reflectors. The medical decision making support apparatus presents a user an inference result obtained by the inference processing and negative information indicating medical information included in a partial set, of the plurality of partial sets, for which the degree of denial is calculated by the calculation processing. The haptic effect may optionally be modified dynamically by using the gesture signal and the real or virtual device sensor signal and a physical model, or may optionally be applied concurrently to multiple devices which are connected via a communication link. The electric circuit signals the electromagnetic actuator to move the shaft parallel with the axis so that the blocker is movable from the locking position to the releasing position if the access code read by the token reader matches a valid access code.