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Visual working memory in decision making by honey bees.

Shaowu Zhang1, Fiola Bock, Aung Si

  • 1Centre for Visual Sciences, Research School of Biological Sciences, Australian National University, P.O. Box 475, Canberra ACT 2601, Australia. shaowu.zhang@anu.edu.au

Proceedings of the National Academy of Sciences of the United States of America
|March 30, 2005
PubMed
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Honey bees exhibit robust working memory, maintaining performance in a delayed matching-to-sample task for up to 5 seconds. They can also learn to focus on relevant stimuli, demonstrating cognitive flexibility.

Area of Science:

  • Animal cognition
  • Neuroethology
  • Insect behavior

Background:

  • Working memory is crucial for decision-making in many species.
  • Understanding the limits and flexibility of working memory in insects provides insights into cognitive evolution.

Purpose of the Study:

  • To investigate the robustness and plasticity of working memory in honey bees.
  • To determine the temporal decay of working memory in honey bees.
  • To assess the ability of honey bees to learn and generalize attentional strategies in a working memory task.

Main Methods:

  • A delayed matching-to-sample (DMTS) paradigm was employed.
  • Honey bees were tested with varying delays between sample and comparison stimuli.
  • A two-sample DMTS task was used to assess attentional learning and generalization.

Related Experiment Videos

Main Results:

  • Working memory performance decayed exponentially with increasing delay, remaining above chance up to 5 seconds.
  • Honey bees could learn to discriminate relevant from irrelevant stimuli based on position or sequence.
  • Learned attentional strategies generalized to novel stimuli, indicating cognitive flexibility.

Conclusions:

  • Honey bees possess a remarkably robust working memory system.
  • The working memory of honey bees demonstrates significant plasticity, allowing for adaptive learning and generalization.