Acute ethanol ingestion impairs appetitive olfactory learning and odor discrimination in the honey bee.

Neurobiology of Learning and Memory
Julie A MustardGeraldine A Wright

Abstract

Invertebrates are valuable models for increasing our understanding of the effects of ethanol on the nervous system, but most studies on invertebrates and ethanol have focused on the effects of ethanol on locomotor behavior. In this work we investigate the influence of an acute dose of ethanol on appetitive olfactory learning in the honey bee (Apis mellifera), a model system for learning and memory. Adult worker honey bees were fed a range of doses (2.5%, 5%, 10%, or 25%) of ethanol and then conditioned to associate an odor with a sucrose reward using either a simple or differential conditioning paradigm. Consumption of ethanol before conditioning significantly reduced both the rate of acquisition and the asymptotic strength of the association. Honey bees also exhibited a dose dependent reduction in arousal/attention during conditioning. Consumption of ethanol after conditioning did not affect recall 24h later. The observed deficits in acquisition were not due to the affect of ethanol on gustatory sensitivity or motor function. However, honey bees given higher doses of ethanol had difficulty discriminating amongst different odors suggesting that ethanol consumption influences olfactory processing. Taken together, these results d...Continue Reading

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Citations

Aug 8, 2012·Die Naturwissenschaften·Elisabeth H FrostNeil Kirk Hillier
Mar 20, 2012·PloS One·Geraldine A WrightJulie A Mustard
Jun 7, 2013·PloS One·Eirik SøvikAndrew B Barron
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Oct 23, 2018·Alcoholism, Clinical and Experimental Research·Julie A MustardAlexander Stoker
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Nov 23, 2019·Insects·Marisol Amaya-MárquezCharles I Abramson
Mar 23, 2018·Proceedings. Biological Sciences·Anne A MaddenRobert R Dunn
Dec 23, 2020·Journal of Neuroendocrinology·Sara Van DammeIsabel Beets
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Oct 28, 2011·The Journal of Experimental Biology·Jaclyn M AllenRandy W Cohen
Jun 16, 2021·Biology Letters·Monika Ostap-ChecKrzysztof Miler

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