Grant: Project Grant

The brainstem, a crucial part of the brain, governs essential survival behaviors like movement and reactions to threats. Our research centers on a specific brainstem area called the cuneiform nucleus (CnF), which is pivotal in initiating defensive behaviors. We previously discovered that inhibitory signals from another brain region, the medial zona incerta (mZI), can stimulate exploratory behaviours by inhibiting the CnF. Our findings reveal that the mZI can promote defensive behaviours through a distinct pathway. This project aims to understand how the CnF and mZI collaborate to regulate defensive behaviours such as fleeing from danger. We will examine how excitatory and inhibitory signals from the mZI influence CnF activity and how the CnF communicates back to the mZI to orchestrate these intricate behaviours. Additionally, we will explore how these brain regions interact with other parts of the brain to produce a coordinated escape response. By understanding these brain circuits, we could potentially develop novel treatments for neurological disorders that impact movement or defensive reactions. Conditions like Parkinson's disease, anxiety disorders, and post-traumatic stress disorder could all benefit from this research. By unravelling the brain's complex control mechanisms, we aim to pave the way for therapies that enhance the quality of life for individuals affected by these conditions.