| Autor: |
Niewalda, Thomas, Völler, Thomas, Eschbach, Claire, Ehmer, Julia, Chou, Wen-Chuang, Timme, Marc, Fiala, André, Gerber, Bertram |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Předmět: |
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| Popis: |
How do physico-chemical stimulus features, perception, and physiology relate? Given the multi-layered and parallel architecture of brains, the question specifically is where physiological activity patterns correspond to stimulus features and/ or perception. Perceived distances between six odour pairs are defined behaviourally from four independent odour recognition tasks. We find that, in register with the physico-chemical distances of these odours, perceived distances for 3-octanol and n-amylacetate are consistently smallest in all four tasks, while the other five odour pairs are about equally distinct. Optical imaging in the antennal lobe, using a calcium sensor transgenically expressed in only first-order sensory or only second-order olfactory projection neurons, reveals that 3-octanol and n-amylacetate are distinctly represented in sensory neurons, but appear merged in projection neurons. These results may suggest that within-antennal lobe processing funnels sensory signals into behaviourally meaningful categories, in register with the physico-chemical relatedness of the odours. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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