Cortical contributions to olfaction: Plasticity and perception

In most sensory systems, the sensory cortex is the place where sensation approaches perception. As described in this review, olfaction is no different. The olfactory system includes both primary and higher order cortical regions. These cortical structures perform computations that take highly analyt...

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Published inSeminars in cell & developmental biology Vol. 17; no. 4; pp. 462 - 470
Main Authors Wilson, Donald A., Kadohisa, Mikiko, Fletcher, Max L.
Format Journal Article
LanguageEnglish
Published England Elsevier Ltd 01.08.2006
Subjects
Animals
Humans
Models, Biological
Neuronal Plasticity - physiology
Odor discrimination
Odor memory
Odor perception
Olfactory cortex
Olfactory Pathways - anatomy & histology
Olfactory Pathways - physiology
Perception - physiology
Piriform cortex
Smell - physiology
Synapses - physiology
Olfactory cortex
Odor discrimination
Odor perception
Piriform cortex
Odor memory
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Summary:In most sensory systems, the sensory cortex is the place where sensation approaches perception. As described in this review, olfaction is no different. The olfactory system includes both primary and higher order cortical regions. These cortical structures perform computations that take highly analytical afferent input and synthesize it into configural odor objects. Cortical plasticity plays an important role in this synthesis and may underlie olfactory perceptual learning. Olfactory cortex is also involved in odor memory and association of odors with multimodal input and contexts. Finally, the olfactory cortex serves as an important sensory gate, modulating information throughput based on recent experience and behavioral state.
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ISSN:1084-9521
1096-3634
DOI:10.1016/j.semcdb.2006.04.008