The Limbic System influences Emotions, the Visceral Responses to those emotions, Motivation, Mood, and sensations of Pain and Pleasure. One of the major sources of sensory input into the Limbic System is the Olfactory Nerves. The smell of food stimulates the Hunger Center in the HypoThalamus.

Lesions in the Limbic System can result in Voracious Appetite, increased (often perverse) sexual activity, and docility (including loss of normal fear and anger responses). Since the Hyppocamus is part of the Temporal Lobe, damage to that portion of the Limbic System can also result in a Loss Of Memory.

The Hyppocamus and the adjacent Cortex are very important in the transition of information from Short to Long Term Memory, and the cells undergoing Calcium induced shape changes associated with Long Term Memory are localized in that region of the Brain.