odor discrimination
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A robust neural code for human odor in the Aedes aegpyti mosquito brain
A globally invasive form of the mosquito Aedes aegypti has evolved to specialize in biting humans, making it an efficient vector of dengue, yellow fever, Zika, and chikungunya. Host-seeking females identify humans primarily by smell, strongly preferring human odour over the odor of non-human animals. Exactly how they discriminate, however, is unclear. Human and animal odors are complex blends that share most of the same chemical components, presenting an interesting challenge in sensory coding. I will talk about recent work from the lab showing that (1) human and animal blends can be distinguished by the relative concentration of a diverse array of compounds and that (2) these complex chemical differences translate into a neural code for human odor that involves as few as two to three olfactory glomeruli in the mosquito brain. Our work demonstrates how organisms may evolve to discriminate complex odor stimuli of special biological relevance with a surprisingly simple combinatorial code and reveals novel targets for the design of next-generation mosquito control strategies.
BEYOND RANDOMNESS: BIASED CONNECTIVITY SHAPES ODOR DISCRIMINATION IN THE <EM>DROSOPHILA</EM> MUSHROOM BODY
FENS Forum 2026
Pharmacological activation of the dopamine D4 receptor prevents morphine-induced impairment of adult neurogenesis in the subventricular zone: Functional implications in odor discrimination learning
FENS Forum 2024
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