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Updated: Nov 19, 2025

Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes
Published on: June 5, 2017
Odor hedonics coding in the vertebrate olfactory bulb
Florence Kermen1, Nathalie Mandairon2, Laura Chalençon2
1Department of Biology, Faculty of Natural Sciences, Norwegian University of Science and Technology, 7030, Trondheim, Norway. florence.kermen@ntnu.no.
Abstract:
Whether an odorant is perceived as pleasant or unpleasant (hedonic value) governs a range of crucial behaviors: foraging, escaping danger, and social interaction. Despite its importance in olfactory perception, little is known regarding how odor hedonics is represented and encoded in the brain. Here, we review recent findings describing how odorant hedonic value is represented in the first olfaction processing center, the olfactory bulb. We discuss how olfactory bulb circuits might contribute to the coding of innate and learned odorant hedonics in addition to the odorant's physicochemical properties.
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