Honeybees, Apis mellifera, were trained to detect coloured disks with either a strong or a weak intensity difference against the background. Green, blue, ultraviolet-reflecting white and grey papers were reciprocally combined as targets or backgrounds, providing strong chromatic and/or achromatic cues. The behavioural performance of the honeybees was always symmetrical for both reciprocal target/background combinations of a colour pair, thus showing that target detection is independent of whether the colour is presented as a background or as a target in combination with the other colour. Bright targets against dim backgrounds and vice versa were detected more reliably than dim target/background combinations. This result favours the general assumption that the detectability of a coloured stimulus increases with increasing intensity.
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JOURNAL ARTICLE| 01 November 2000
Detection of bright and dim colours by honeybees
N. Hempel De Ibarra,
N. Hempel De Ibarra
Online Issn: 1477-9145
Print Issn: 0022-0949
© 2000 by Company of Biologists
J Exp Biol (2000) 203 (21): 3289–3298.
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N. Hempel De Ibarra, M. Vorobyev, R. Brandt, M. Giurfa; Detection of bright and dim colours by honeybees. J Exp Biol 1 November 2000; 203 (21): 3289–3298. doi: https://doi.org/10.1242/jeb.203.21.3289
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