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Study of single sensillum responses to pheromone in the light‐brown apple moth, Epiphyas postvittana , using an averaging technique
Author(s) -
CSIRO E. R. RUMBO
Publication year - 1981
Publication title -
physiological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 57
eISSN - 1365-3032
pISSN - 0307-6962
DOI - 10.1111/j.1365-3032.1981.tb00263.x
Subject(s) - sensillum , biology , pheromone , electrophysiology , stimulus (psychology) , sensory system , stimulation , anatomy , botany , neuroscience , psychology , psychotherapist
. A technique is described for averaging the electrophysiological responses of single olfactory sensilla when repeatedly stimulated with the same odour. This enables measurements of electrophysiological responses to be interpreted in a way not normally possible because of the highly variable nature of the individual responses of sensory cells. When the antennal receptors of males of Epiphyas postvittana are stimulated with a single pheromone component, it is shown that the responses contain sufficient information to detect readily both the onset and removal of a stimulus and also a doubling or halving in the concentration of the pheromone. Significant changes in the spontaneous activity of cells following stimulation are also described.