Abstract:Emotion is a complex psychophysiological experience of an individual's state of mind as interacting with biochemical (internal) and environmental (external) influences. The identification, generation, and control of emotion depend on the functional integration of the ventral system and dorsal system. Researches focusing on the genetic mechanism of emotion may help people to deepen understanding of the nature of emotion in theory, and in the application of prevention and intervention of emotional disorders. Emotion and cognition are mutually dependent and interactively related, especially reflecting in the relationship between emotion and attention, as well as decision-making and working memory. Anxiety and depression are the most common emotional disorders and have profound clinical applications significance.