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Rearing in different photic and spectral environments changes the optomotor response to chromatic stimuli in the cichlid fish Aequidens pulcher

Publiceringsår: 2003
Språk: Engelska
Sidor: 1643-1648
Publikation/Tidskrift/Serie: Journal of Experimental Biology
Volym: 206
Nummer: 10
Dokumenttyp: Artikel
Förlag: Company of Biologists Ltd


Developmental plasticity of spectral processing in vertebrates was investigated in fish by using an innate behavior, the optomotor response. Rearing blue acara (Aequidens pulcher; Cichlidae) under white lights of different intensities as well as deprivation of long wavelengths induced significant changes in the animals' responses to chromatic stimuli. Deprivation of short wavelengths had no effect. With this and previous studies on animals reared under similar conditions, we have demonstrated that developmental plasticity in spectral processing is present at a wide range of neural levels, spanning from photoreceptors to behavior. We hypothesize that earlier studies did not reveal such effects because of the rearing and testing conditions used.



  • Biology and Life Sciences
  • developmental plasticity
  • vertebrate
  • Aequidens pulcher
  • cichlid fish
  • color vision
  • spectral processing


  • German Research Foundation
  • Lund Vision Group
  • ISSN: 0022-0949

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