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      Neurons and circuits for odor processing in the piriform cortex.

      Trends in Neurosciences

      physiology, Olfactory Perception, Olfactory Pathways, Olfactory Bulb, Neurons, Humans, Cerebral Cortex, Animals

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          Abstract

          Increased understanding of the early stages of olfaction has lead to a renewed interest in the higher brain regions responsible for forming unified 'odor images' from the chemical components detected by the nose. The piriform cortex, which is one of the first cortical destinations of olfactory information in mammals, is a primitive paleocortex that is critical for the synthetic perception of odors. Here we review recent work that examines the cellular neurophysiology of the piriform cortex. Exciting new findings have revealed how the neurons and circuits of the piriform cortex process odor information, demonstrating that, despite its superficial simplicity, the piriform cortex is a remarkably subtle and intricate neural circuit. Copyright © 2013 Elsevier Ltd. All rights reserved.

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          Journal
          10.1016/j.tins.2013.04.005
          23648377

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