Journal
SEMINARS IN CELL & DEVELOPMENTAL BIOLOGY
Volume 17, Issue 4, Pages 433-442Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.semcdb.2006.04.012
Keywords
odor; synchrony; antennal lobe; olfactory bulb; coding
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Funding
- Intramural NIH HHS Funding Source: Medline
- NIDCD NIH HHS [R01 DC007995, R01DC00795-01] Funding Source: Medline
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Insects and vertebrates separately evolved remarkably similar mechanisms to process olfactory information. Odors are sampled by huge numbers of receptor neurons, which converge type-wise upon a much smaller number of principal neurons within glomeruli. There, odor information is transformed by inhibitory interneuron-mediated, cross-glomerular circuit interactions that impose slow temporal structures and fast oscillations onto the firing patterns of principal neurons. The transformations appear to improve signal-to-noise characteristics, define odor categories, achieve precise odor identification, extract invariant features, and begin the process of sparsening the neural representations of odors for efficient discrimination, memorization, and recognition. (c) 2006 Elsevier Ltd. All rights reserved.
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