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Neurosci Biobehav Rev. 2011 Jan;35(3):655-68. doi: 10.1016/j.neubiorev.2010.08.004. Epub 2010 Aug 26.

Sniffing out the contributions of the olfactory tubercle to the sense of smell: hedonics, sensory integration, and more?

Author information

1
Emotional Brain Institute, Nathan S. Kline Institute for Psychiatric Research, 140 Old Orangeburg Road, Orangeburg, NY 10962, USA. dwesson@nki.rfmh.org

Abstract

Since its designation in 1896 as a putative olfactory structure, the olfactory tubercle has received little attention in terms of elucidating its role in the processing and perception of odors. Instead, research on the olfactory tubercle has mostly focused on its relationship with the reward system. Here we provide a comprehensive review of research on the olfactory tubercle-with an emphasis on the likely role of this region in olfactory processing and its contributions to perception. Further, we propose several testable hypotheses regarding the likely involvement of the olfactory tubercle in both basic (odor detection, discrimination, parallel processing of olfactory information) and higher-order (social odor processing, hedonics, multi-modal integration) functions. Together, the information within this review highlights an understudied yet potentially critical component in central odor processing.

PMID:
20800615
PMCID:
PMC3005978
DOI:
10.1016/j.neubiorev.2010.08.004
[Indexed for MEDLINE]
Free PMC Article
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