Moth olfactory receptor neurons adjust their encoding efficiency to temporal statistics of pheromone fluctuations

Levakova Marie, Kostal Lubomir, Monsempès Christelle, Jacob Vincent, Lucas Philippe. 2018. Moth olfactory receptor neurons adjust their encoding efficiency to temporal statistics of pheromone fluctuations. PLoS Computational Biology, 14 (11):e1006586, 17 p.

https://doi.org/10.1371/journal.pcbi.1006586

Article de revue ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total

Prévisualisation

Version publiée - Anglais
Utilisation soumise à autorisation de l'auteur ou du Cirad.
LevakovaKostalMonsempesJacobLucas2018.pdf
Télécharger (1MB) | Prévisualisation

Quartile : Outlier, Sujet : MATHEMATICAL & COMPUTATIONAL BIOLOGY / Quartile : Q1, Sujet : BIOCHEMICAL RESEARCH METHODS

Résumé : The efficient coding hypothesis predicts that sensory neurons adjust their coding resources to optimally represent the stimulus statistics of their environment. To test this prediction in the moth olfactory system, we have developed a stimulation protocol that mimics the natural temporal structure within a turbulent pheromone plume. We report that responses of antennal olfactory receptor neurons to pheromone encounters follow the temporal fluctuations in such a way that the most frequent stimulus timescales are encoded with maximum accuracy. We also observe that the average coding precision of the neurons adjusted to the stimulus-timescale statistics at a given distance from the pheromone source is higher than if the same encoding model is applied at a shorter, non-matching, distance. Finally, the coding accuracy profile and the stimulus-timescale distribution are related in the manner predicted by the information theory for the many-to-one convergence scenario of the moth peripheral sensory system.

Mots-clés Agrovoc : Agrotis ipsilon, phéromone, Noctuidae, organe olfactif, récepteur d'hormone, neurophysiologie

Classification Agris : H10 - Ravageurs des plantes

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations