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Parasitic wasps remember better if reward is greater

Date:
August 22, 2012
Source:
Public Library of Science
Summary:
Two parasitic wasp species show similar memory consolidation patterns in response to rewards of different quality, providing evidence that the reward value affects the type of memory that is consolidated.

Two parasitic wasp species show similar memory consolidation patterns in response to rewards of different quality, providing evidence that the reward value affects the type of memory that is consolidated. The full results are reported Aug. 22 in the open access journal PLOS ONE.

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The researchers, led by Marjolein Kruidhof of the Netherlands Institute of Ecology, tested how wasps store scents associated with situations of low reward (egg-laying into a inferior-quality host species that lays single eggs) versus high reward (egg-laying into a superior-quality host species that lays egg clusters) in their brain.

They found that both wasp species behaved similarly, retaining memory for the scent associated with the high reward scenario to a greater extent compared to the low reward scenario.

They write that this behavior makes sense given the energetic cost of consolidating shorter-lasting memory forms into long-term, consolidated memories, which may only be advantageous if the benefit is sufficiently high.


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The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. H. Marjolein Kruidhof, Foteini G. Pashalidou, Nina E. Fatouros, Ilich A. Figueroa, Louise E. M. Vet, Hans M. Smid, Martinus E. Huigens. Reward Value Determines Memory Consolidation in Parasitic Wasps. PLoS ONE, 2012; 7 (8): e39615 DOI: 10.1371/journal.pone.0039615

Cite This Page:

Public Library of Science. "Parasitic wasps remember better if reward is greater." ScienceDaily. ScienceDaily, 22 August 2012. <www.sciencedaily.com/releases/2012/08/120822181358.htm>.
Public Library of Science. (2012, August 22). Parasitic wasps remember better if reward is greater. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2012/08/120822181358.htm
Public Library of Science. "Parasitic wasps remember better if reward is greater." ScienceDaily. www.sciencedaily.com/releases/2012/08/120822181358.htm (accessed December 21, 2014).

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