Olfactory receptor cells on the cockroach antennae: responses to the direction and rate of change in food odour concentration

The European Journal of Neuroscience
Armin HinterwirthHarald Tichy

Abstract

In insects, information about food odour is encoded by olfactory receptor cells with characteristic response spectra, located in several types of cuticular sensilla. Within short, hair-like sensilla on the cockroach's antenna, antagonistic pairs of olfactory receptor cells shape information inflow to the CNS by providing excitatory responses for both increases and decreases in food odour concentration. The segregation of food odour information into parallel ON and OFF responses suggests that temporal concentration changes become enhanced in the sensory output. When food odour concentration changes slowly and continuously up and down with smooth transition from one direction to another, the ON and OFF olfactory cells not only signal a succession of odour concentrations but also the rate with which odour concentration happens to be changing. Access to the values of such cues is of great use to an insect orientating to an odour source. With them they may extract concentration gradients from odour plumes.

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Citations

Aug 24, 2010·Journal of Computational Neuroscience·Anmo J KimYevgeniy B Slutskiy
Dec 17, 2010·Journal of Neurophysiology·Maria Burgstaller, Harald Tichy
Nov 12, 2014·Proceedings of the National Academy of Sciences of the United States of America·Paul SzyszkaBrian H Smith
Dec 22, 2005·The European Journal of Neuroscience·Harald TichyEwald Gingl
Feb 7, 2012·The European Journal of Neuroscience·Maria Burgstaller, Harald Tichy
Sep 27, 2018·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Harald Tichy, Maria Hellwig
May 23, 2017·Frontiers in Neural Circuits·Hidehiro WatanabeFumio Yokohari
Sep 22, 2017·Archives of Toxicology·Tanja PoppDirk Steinritz
Jan 25, 2021·Cell and Tissue Research·Debora Fuscà, Peter Kloppenburg

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