The difference in his emotions can best be explained by:
C. Cannon Bard Theory
In the Cannon Bard Theory, it is asserted that humans feel emotions and physiological responses simultaneously (at the same time). This goes against the James-Lange belief that the body experiences emotion because of body responses (body shivering, eyes watering, etc).
Cannon-Bard suggests that emotions are felt not because of how the body may react (sweating, shaking) but can be experienced even if the brain is not connected to the bodily information.