relaxation . Changes in the amplitude for each dimension are two opposing state, and change in the dimension is a continuous mental process. After that,Osgood, Mehrabian and Russell modified the representation of emotional dimension. The new dimension includes pleasure-displeasure, arousal-nonarousal, and dominance-submissiveness (PAD) . They represent the positive and negative sides of emotional state: active level of physiology and the individual’s controlling state about the environment and other people. This model is mentioned in PAD emotional mode . The PAD model not only describes the emotional space in theory, but also quantifies the various emotional aspects in the emotional space. As a
result, the PAD model has been widely used in emotional psychology, personality psychology, social psychology as
well as marketing, product satisfaction and other applications