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Perceptual and Neural Olfactory Similarity in Honeybees
The question of whether or not neural activity patterns recorded in the olfactory centres of the brain correspond to olfactory perceptual measures remains unanswered. To address this question, we studied olfaction in honeybees Apis mellifera using the olfactory conditioning of the proboscis extensio...
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Formato: | Texto |
Lenguaje: | English |
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Public Library of Science
2005
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1043859/ https://www.ncbi.nlm.nih.gov/pubmed/15736975 http://dx.doi.org/10.1371/journal.pbio.0030060 |
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author | Guerrieri, Fernando Schubert, Marco Sandoz, Jean-Christophe Giurfa, Martin |
author_facet | Guerrieri, Fernando Schubert, Marco Sandoz, Jean-Christophe Giurfa, Martin |
author_sort | Guerrieri, Fernando |
collection | PubMed |
description | The question of whether or not neural activity patterns recorded in the olfactory centres of the brain correspond to olfactory perceptual measures remains unanswered. To address this question, we studied olfaction in honeybees Apis mellifera using the olfactory conditioning of the proboscis extension response. We conditioned bees to odours and tested generalisation responses to different odours. Sixteen odours were used, which varied both in their functional group (primary and secondary alcohols, aldehydes and ketones) and in their carbon-chain length (from six to nine carbons).The results obtained by presentation of a total of 16 × 16 odour pairs show that (i) all odorants presented could be learned, although acquisition was lower for short-chain ketones; (ii) generalisation varied depending both on the functional group and the carbon-chain length of odours trained; higher generalisation was found between long-chain than between short-chain molecules and between groups such as primary and secondary alcohols; (iii) for some odour pairs, cross-generalisation between odorants was asymmetric; (iv) a putative olfactory space could be defined for the honeybee with functional group and carbon-chain length as inner dimensions; (v) perceptual distances in such a space correlate well with physiological distances determined from optophysiological recordings of antennal lobe activity. We conclude that functional group and carbon-chain length are inner dimensions of the honeybee olfactory space and that neural activity in the antennal lobe reflects the perceptual quality of odours. |
format | Text |
id | pubmed-1043859 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2005 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-10438592005-03-01 Perceptual and Neural Olfactory Similarity in Honeybees Guerrieri, Fernando Schubert, Marco Sandoz, Jean-Christophe Giurfa, Martin PLoS Biol Research Article The question of whether or not neural activity patterns recorded in the olfactory centres of the brain correspond to olfactory perceptual measures remains unanswered. To address this question, we studied olfaction in honeybees Apis mellifera using the olfactory conditioning of the proboscis extension response. We conditioned bees to odours and tested generalisation responses to different odours. Sixteen odours were used, which varied both in their functional group (primary and secondary alcohols, aldehydes and ketones) and in their carbon-chain length (from six to nine carbons).The results obtained by presentation of a total of 16 × 16 odour pairs show that (i) all odorants presented could be learned, although acquisition was lower for short-chain ketones; (ii) generalisation varied depending both on the functional group and the carbon-chain length of odours trained; higher generalisation was found between long-chain than between short-chain molecules and between groups such as primary and secondary alcohols; (iii) for some odour pairs, cross-generalisation between odorants was asymmetric; (iv) a putative olfactory space could be defined for the honeybee with functional group and carbon-chain length as inner dimensions; (v) perceptual distances in such a space correlate well with physiological distances determined from optophysiological recordings of antennal lobe activity. We conclude that functional group and carbon-chain length are inner dimensions of the honeybee olfactory space and that neural activity in the antennal lobe reflects the perceptual quality of odours. Public Library of Science 2005-04 2005-02-22 /pmc/articles/PMC1043859/ /pubmed/15736975 http://dx.doi.org/10.1371/journal.pbio.0030060 Text en Copyright: © 2005 Guerrieri et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Guerrieri, Fernando Schubert, Marco Sandoz, Jean-Christophe Giurfa, Martin Perceptual and Neural Olfactory Similarity in Honeybees |
title | Perceptual and Neural Olfactory Similarity in Honeybees |
title_full | Perceptual and Neural Olfactory Similarity in Honeybees |
title_fullStr | Perceptual and Neural Olfactory Similarity in Honeybees |
title_full_unstemmed | Perceptual and Neural Olfactory Similarity in Honeybees |
title_short | Perceptual and Neural Olfactory Similarity in Honeybees |
title_sort | perceptual and neural olfactory similarity in honeybees |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1043859/ https://www.ncbi.nlm.nih.gov/pubmed/15736975 http://dx.doi.org/10.1371/journal.pbio.0030060 |
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