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Long- but not medium-term retention of olfactory memories in honeybees is impaired by actinomycin D and anisomycin (1998)

Wüstenberg, Daniel ; Gerber, Bertram ; Menzel, Randolf

Oxford, UK : Blackwell Science Ltd

European journal of neuroscience 10 (1998), S. 0

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ISSN: 1460-9568

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Medicine

Notes: Although work in a wide variety of species and paradigms has demonstrated that long-term memory is sensitive to the blocking of protein synthesis, previous studies have suggested that the honeybee might represent an exception to this rule. Retention tested one day after training was not impaired by the inhibition of translation by cycloheximide. Using blockers of either transcription (actinomycin D) or translation (anisomycin), we present experiments that reconcile this unusual finding by testing over longer retention periods. Honeybees were conditioned to associate an odourant with a sucrose reward. Typically, this leads to stable retention over days. However, injection of either drug led to lower retention after 4 days, whereas retention after 2 or sometimes even 3 days was unaffected. This dissociates two forms of memory: a protein synthesis-independent, medium-term memory (up to 3 days) and a protein synthesis-dependent, long-term memory lasting for at least 4 days.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1046/j.1460-9568.1998.00319.x

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Experimental psychology Event timing turns punishment to reward (2004)

Heisenberg, Martin ; Gerber, Bertram ; Tanimoto, Hiromu

[s.l.] : Nature Publishing Group

Nature 430 (2004), S. 983-983

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ISSN: 1476-4687

Source: Nature Archives 1869 - 2009

Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics

Notes: [Auszug] Can relief from pain be a pleasure? If so, noxious events should — despite their typically aversive effects — also have a ‘rewarding’ after-effect. Through training fruitflies by using an electric shock paired with an odour, we show here that the shock can condition ...