The modality type specifies the allowed values of emotion modality. It indicates through which the emotion is expressed (when labelling) or through which the emotion is to be expressed generating to characterise emotions in terms of the action tendencies that accompany them, such as approach or avoidance emotion category We propose a sampling mechanism, assuming that points occur at fixed time intervals determined by a "sampling rate" (= the number of samples per second). The sample type specifies the list of values corresponding to a sampling .