Final answer:
The frontal lobes of the brain are more active with positive emotions, and the right hemisphere is more active with negative emotions, reflecting their respective roles in emotional processing.
Step-by-step explanation:
Researchers have found that the frontal lobes of the brain are more active when we experience positive emotions, while the right hemisphere is more active when we experience negative emotions. The frontal lobe, involved in reasoning, motor control, emotion, and language, has been linked to the processing of positive emotions and is located in the forward part of the brain, extending back to a central sulcus. In contrast, the right hemisphere is associated with arousal and negative emotions, suggesting a lateralization effect in emotional processing.