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The limbic system is a set of brain structures located on both sides of the thalamus, immediately beneath the cerebrum. It has also been referred to as the paleomammalian cortex. It is not a separate system but a collection of structures from the telencephalon, diencephalon, and mesencephalon.
The Limbic System. Â­When we look more closely at the areas of the brain involved with laughter, the limbic system seems to be central. The limbic system is a network of structures loÂ­cated beneath the cerebral cortex. This system is important because it controls some behaviors that are essential to the life of all mammals (finding food, self-preservation). Interestingly, the same structures found in the human limbic system can also be found in the brains of evolutionary ancient animals such as the alligator.