Final answer:
Disruptions in the limbic system of the brain can result in anger & rage, affecting the regulation of emotions and behaviors related to fear and motivation. The amygdala, a part of the limbic system, plays a crucial role in the sensation of fear and recognizing fearful faces. Pathways between the limbic system and the frontal lobe are important for controlling emotional impulses.
Step-by-step explanation:
Disruptions in the limbic system of the brain can result in anger & rage. The limbic system is a connected set of structures that regulate emotions and behaviors related to fear and motivation. This system includes the amygdala, which plays a crucial role in the sensation of fear and recognizing fearful faces. It also includes the hypothalamus, which stimulates the release of stress hormones in response to amygdala input. When the pathways between the limbic system and the frontal lobe are damaged, it can result in difficulty controlling emotional impulses, as seen in the case of Phineas Gage.