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- Title
Keeping their distance? Odor response patterns along the concentration axis.
- Authors
Strauch, Martin; Ditzen, Mathias; Galizia, C. Giovanni
- Abstract
We investigate the interplay of odor identity and concentration coding in the antennal lobe 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 calciumimaging 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.
- Subjects
HONEYBEES; ODORS; SPATIO-temporal variation; GLOMERULAR filtration rate; KIDNEY glomerulus; CALCIUM
- Publication
Frontiers in Systems Neuroscience, 2012, Vol 6, p1
- ISSN
1662-5137
- Publication type
Article
- DOI
10.3389/fnsys.2012.00071