Structures of the limbic system

There is no single, universally agreed and distinct definition of the limbic system;^{1} it is a complex set of connected structures in the brain that plays a key role in:^{2,3}

•Regulating emotional responses

•Forming and processing emotional memories

•Learning, attention, decision making

•Certain aspects of behaviour, e.g., motivation

•Regulation of autonomic and neuroendocrine functions

The limbic system influences behaviour tied to survival, such as feeding, reproduction, and responses to threats^{3-5}. Disruption of the limbic system may play a role in disorders like anxiety, depression, and post-traumatic stress disorder, due to altered emotional responses^{2,6}