AI Article Synopsis
- The study examines how honeybees encode different odors in their antennal lobe, focusing on the role of odor identity and concentration.
- As the concentration of an odor increases, more olfactory glomeruli (the brain structures that process smells) are activated, leading to changes in the spatial patterns of responses.
- The findings suggest that at higher concentrations, the glomerular response patterns become more similar to the actual chemical similarities of the odor molecules, enhancing the bees' ability to distinguish between different odors.
Article Abstract
We investigate the interplay of odor identity and concentration coding in the antennal lobe (AL) of the honeybee Apis mellifera. In this primary olfactory center of the honeybee brain, odors are encoded by the spatio-temporal response patterns of olfactory glomeruli. With rising odor concentration, further glomerular responses are recruited into the patterns, which affects distances between the patterns. Based on calcium-imaging recordings, we found that such pattern broadening renders distances between glomerular response patterns closer to chemical distances between the corresponding odor molecules. Our results offer an explanation for the honeybee's improved odor discrimination performance at higher odor concentrations.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3474990 | PMC |
| http://dx.doi.org/10.3389/fnsys.2012.00071 | DOI Listing |
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