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Improved Cholinergic Transmission is Detrimental to Behavioural Plasticity in Honeybees (Apis mellifera)

1
School of Psychology, The University of Newcastle, Callaghan, NSW 2308, Australia
2
Research School of Biology, The Australian National University, Canberra, ACT 0200, Australia
*
Author to whom correspondence should be addressed.
Biology 2012, 1(3), 508-520; https://doi.org/10.3390/biology1030508
Received: 1 September 2012 / Revised: 21 September 2012 / Accepted: 27 September 2012 / Published: 16 October 2012
Unravelling the role of neuromessenger processes in learning and memory has long interested researchers. We investigated the effects of an acetylcholinesterase blocker, Methyl Parathion (MeP), on honeybee learning. We used visual and olfactory tasks to test whether MeP had a detrimental effect on the acquisition of new knowledge when this new knowledge contradicts previously acquired one. Our results indicate that treatment with MeP prior to conditioning was significantly detrimental to the acquisition of incongruous (but not irrelevant or congruous) new knowledge due to improved recall. The neurobiological and ecotoxicological consequences of these results are discussed. View Full-Text
Keywords: pesticide; organo-phosphate; nicotinic; muscarinic; recall; learning reversal; Apis mellifera ligustica pesticide; organo-phosphate; nicotinic; muscarinic; recall; learning reversal; Apis mellifera ligustica
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Guez, D.; Zhu, H.; Zhang, S.-W. Improved Cholinergic Transmission is Detrimental to Behavioural Plasticity in Honeybees (Apis mellifera). Biology 2012, 1, 508-520.

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