Detection of coloured stimuli by honeybees: minimum visual angles and receptor specific contrasts

@article{Giurfa2004DetectionOC,
  title={Detection of coloured stimuli by honeybees: minimum visual angles and receptor specific contrasts},
  author={Martin Giurfa and Misha Vorobyev and Peter G. Kevan and Randolf Menzel},
  journal={Journal of Comparative Physiology A},
  year={2004},
  volume={178},
  pages={699-709}
}
Honeybees Apis mellifera were trained to distinguish between the presence and the absence of a rewarded coloured spot, presented on a vertical, achromatic plane in a Y-maze. They were subsequently tested with different subtended visual angles of that spot, generated by different disk diameters and different distances from the decision point in the device. Bees were trained easily to detect bee-chromatic colours, but not an achromatic one. Chromatic contrast was not the only parameter allowing… 
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