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  • Book
    Ian MacKay, Noel R. Rose, editors-in-chief ; Betty Diamond, Anne Davidson, editors.
    Digital Access Springer 2014
  • Article
    Fite KV, Soukup J, Carey RG.
    Brain Behav Evol. 1978;15(5-6):405-14.
    A reexamination of wavelength discrimination using a 2-choice paradigm and both chromatic-chromatic and chromatic-achromatic stimulus pairs has reaffirmed the positive tendency of Rana pipiens to approach short wavelengths. In addition, a strong avoidance of long wavelengths was observed and an interaction of these two opposite response tendencies was demonstrated. Thus, the percent choice frequency for a short-wavelength stimulus depends upon the stimulus with which it is paired. A positive phototaxis appears to influence response to some short-wavelength stimuli when they differ in brightness from an achromatic stimulus, but not with wavelengths above 471 nm.
    Digital Access Access Options