3.1 Recording Affective Experiences We employ the widely used SCL, which is one of the Electro Dermal Activities (EDA), to measure emotional arousal. EDA is an electrically capture of mental sweating, which are caused by the physiological functions of the human body when mental states, such as agitation, surprise and excitement, induce changes in the conductance on the skin surface. For instance, many people have sweaty or moist hands when they are excited. This type sweating can range from a small amount of perspiration hardly noticeable to ones’ self, to heavy sweating. To measure SCL (that is, the conductance change), users equip a pair of electrodes, which have a feeble electric current flowing between them, on their palm or wrist. In our system, we use SCL to measure a video shooter’s emotional state, and therefore record this signal along with the video they are capturing.