Bilateral olfactory sensory input enhances chemotaxis behavior.

Détails

ID Serval
serval:BIB_97E9B22A74DA
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Bilateral olfactory sensory input enhances chemotaxis behavior.
Périodique
Nature neuroscience
Auteur(s)
Louis M., Huber T., Benton R., Sakmar T.P., Vosshall L.B.
ISSN
1097-6256
Statut éditorial
Publié
Date de publication
2008
Peer-reviewed
Oui
Volume
11
Numéro
2
Pages
187-199
Langue
anglais
Résumé
Neural comparisons of bilateral sensory inputs are essential for visual depth perception and accurate localization of sounds in space. All animals, from single-cell prokaryotes to humans, orient themselves in response to environmental chemical stimuli, but the contribution of spatial integration of neural activity in olfaction remains unclear. We investigated this problem in Drosophila melanogaster larvae. Using high-resolution behavioral analysis, we studied the chemotaxis behavior of larvae with a single functional olfactory neuron on either the left or right side of the head, allowing us to examine unilateral or bilateral olfactory input. We developed new spectroscopic methods to create stable odorant gradients in which odor concentrations were experimentally measured. In these controlled environments, we observed that a single functional neuron provided sufficient information to permit larval chemotaxis. We found additional evidence that the overall accuracy of navigation is enhanced by the increase in the signal-to-noise ratio conferred by bilateral sensory input.
Mots-clé
Animals, Animals, Genetically Modified, Behavior, Animal/physiology, Chemotaxis/genetics, Chemotaxis/physiology, Drosophila Proteins/genetics, Drosophila melanogaster, Functional Laterality/physiology, Larva, Microscopy, Electron, Scanning, Odors, Olfactory Pathways/cytology, Olfactory Receptor Neurons/physiology, Olfactory Receptor Neurons/ultrastructure, Spectroscopy, Fourier Transform Infrared/methods, Stimulation, Chemical
Pubmed
Web of science
Création de la notice
26/03/2009 14:25
Dernière modification de la notice
20/08/2019 14:59
Données d'usage