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  • Color mixing in the pigeon (Columba livia) II: A psychophysical determination in the middle, short and near-UV wavelength range.

    Vision Res. 32(10):1947-53. October 1992. View on PubMed.
  • Authors

    Adrian Palacios (Universidad de Valparaíso) and Varela FJ
  • Abstract

    Pigeons were trained to discriminate between spectral lights and additive mixtures in the 350-560 nm spectral range using a successive "autoshaping" discrimination procedure [introduced in Palacios, Martinoya, Bloch & Varela, Vision Research, 30, 587-596 (1990)]. Dichromatic mixtures were found in the short and near UV region, but not in the middle-wave region. Our results suggest that color vision in the pigeon involves the active participation of five different primary mechanisms, which are differentially active in the yellow- and red-sensitive retinal fields.

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