GABAergic inputs including those from the arcuate nucleus,
Molecular and anatomical characterization of parabrachial neurons and their axonal projections
calcium imaging and Fos-induction studies show that most sensory systems can activate neurons in the PBN
The PBN projects axons to the periaqueductal gray (PAG), extended amygdala (including the BNST, CEA, substantia innominata, SI), the cerebral cortex (primarily the insular cortex), thalamus, parasubthalamic nucleus (PSTN), hypothalamus, and medulla.
The location of neurons in the PBN that expresses distinct molecular markers will help address these questions.
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