A Map of Pheromone Receptor Activation in the Mammalian Brain
نویسندگان
چکیده
In mammals, the detection of pheromones is mediated by the vomeronasal system. We have employed gene targeting to visualize the pattern of projections of axons from vomeronasal sensory neurons in the accessory olfactory bulb. Neurons expressing a specific receptor project to multiple glomeruli that reside within spatially restricted domains. The formation of this sensory map in the accessory olfactory bulb and the survival of vomeronasal organ sensory neurons require the expression of pheromone receptors. In addition, we observe individual glomeruli in the accessory olfactory bulb that receive input from more than one type of sensory neuron. These observations indicate that the organization of the vomeronasal sensory afferents is dramatically different from that of the main olfactory system, and these differences have important implications for the logic of olfactory coding in the vomeronasal organ.
منابع مشابه
Pheromone reception: A complex map of activation in the brain
Recent studies of the projection pattern made by sensory neurons involved in mammalian pheromone reception have shown that there is a map of activation in the brain, but this pheromone map appears far more complex than the equivalent map in the main olfactory system responsible for the sense of smell.
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ورودعنوان ژورنال:
- Cell
دوره 97 شماره
صفحات -
تاریخ انتشار 1999