Hannah A. Arnson

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About

Hannah A. Arnson is a neuroscientist whose research centers on sensory neurobiology, specifically the neural circuits underlying chemosensation and social communication. Her most notable contribution is pioneering the use of planar multielectrode arrays (MEAs) to study the mouse vomeronasal organ (VNO), a critical structure for detecting pheromones and mediating social behaviors. In her landmark 2010 paper, "Multielectrode Array Recordings of the Vomeronasal Epithelium," Arnson demonstrated that MEAs could simultaneously record from dozens of VNO neurons in vitro, providing a powerful new tool for investigating how the brain processes chemical cues. This work, cited 14 times, established a methodological foundation for high-throughput neural recording in the vomeronasal system, enabling researchers to map population-level responses to pheromonal stimuli. By adapting MEA technology to this understudied sensory organ, Arnson bridged a gap between single-cell electrophysiology and systems-level circuit analysis. Her contributions have been instrumental in advancing our understanding of how the VNO encodes social and reproductive information, offering insights into the neural basis of behavior that remain relevant for both basic neuroscience and translational research on chemosensory disorders.