What is the limbic system? What is the border between two major sections primitive/cortex

The limbic system, often linked to emotional processing and memory, comprises several brain structures. According to Andrew Huberman, its components include structures like the hypothalamus and amygdala, which are involved in functions like threat detection, aggression, and regulating sleep-wake cycles. These are sometimes collectively referred to as subcortical structures, indicating their location beneath the cerebral cortex 1.

The border between what can be considered primitive brain structures, like those in the limbic system, and the more advanced cortical regions, such as the prefrontal cortex, is functionally significant. The prefrontal cortex, located just behind the forehead, is involved in higher-order tasks, such as planning, assessing outcomes, contextual reasoning, and maintaining a self-concept. Although sometimes perceived as more evolved, the prefrontal cortex and limbic structures serve distinct but interconnected roles in processing experiences and decision-making 1.