ArticleProceedings. Biological sciences2015
Odourant dominance in olfactory mixture processing: what makes a strong odourant?
Article in Proceedings. Biological sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 25 citations in OpenAlex.
- Biological constraints on configural odour mixture perception.The Journal of experimental biology · 2022Article
- Olfactory coding in honeybees.Cell and tissue research · 2021Review
- Scaling the interactive effects of attractive and repellent odours for insect search behaviour.Scientific reports · 2019Article
- Competitive binding predicts nonlinear responses of olfactory receptors to complex mixtures.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Odor Stimuli: Not Just Chemical Identity.Frontiers in physiology · 2019Review
- Interference in early dual-task learning by predatory mites.Animal behaviour · 2017Article
- Olfactory learning without the mushroom bodies: Spiking neural network models of the honeybee lateral antennal lobe tract reveal its capacities in odour memory tasks of varied complexities.PLoS computational biology · 2017Article
- Food quality and conspicuousness shape improvements in olfactory discrimination by mice.Proceedings. Biological sciences · 2017Article
- Behavioral Evidence for Enhanced Processing of the Minor Component of Binary Odor Mixtures in LarvalFrontiers in psychology · 2017Article
- Benefit-cost Trade-offs of Early Learning in Foraging Predatory Mites Amblyseius Swirskii.Scientific reports · 2016Article
- Phosphoinositide-3-Kinase Is the Primary Mediator of Phosphoinositide-Dependent Inhibition in Mammalian Olfactory Receptor Neurons.Frontiers in cellular neuroscience · 2016Article
- Appetitive floral odours prevent aggression in honeybees.Nature communications · 2015Article
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The question of how animals process stimulus mixtures remains controversial as opposing views propose that mixtures are processed analytically, as the sum of their elements, or holistically, as unique entities different from their elements. Overshadowing is a widespread phenomenon that can help decide between these alternatives. In overshadowing, an individual trained with a binary mixture learns one element better at the expense of the other. Although element salience (learning success) has been suggested as a main explanation for overshadowing, the mechanisms underlying this phenomenon remain unclear. We studied olfactory overshadowing in honeybees to uncover the mechanisms underlying olfactory-mixture processing. We provide, to our knowledge, the most comprehensive dataset on overshadowing to date based on 90 experimental groups involving more than 2700 bees trained either with six odourants or with their resulting 15 binary mixtures. We found that bees process olfactory mixtures analytically and that salience alone cannot predict overshadowing. After normalizing learning success, we found that an unexpected feature, the generalization profile of an odourant, was determinant for overshadowing. Odourants that induced less generalization enhanced their distinctiveness and became dominant in the mixture. Our study thus uncovers features that determine odourant dominance within olfactory mixtures and allows the referring of this phenomenon to differences in neural activity both at the receptor and the central level in the insect nervous system.
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