24. The emotion recognition apparatus of claim 23 , further comprising: an emotion provision unit to output data regarding the estimated internal emotional state and data regarding the estimated external emotional state of the user.
24. The emotion recognition apparatus of claim 23 , further comprising: an emotion provision unit to output data regarding the estimated internal emotional state and data regarding the estimated external emotional state of the user. 25. The emotion recognition apparatus of claim 24 , wherein the emotion provision unit further outputs the data regarding the estimated internal emotional state of the user to a user interface of the terminal, and outputs the data regarding the estimated external emotional state of the user to an external device.