title: Effect of S-adenosylhomocystein on color avoidance behavior.
abstract: The intracranial injection of an inhibitor of the enzyme hydroxyindole-O-methyltransferase (S-adenosylhomocystein: SAH) in goldfish prior to color avoidance training caused delay in responding to either white or green conditioned stimulus in the shuttlebox. Latency of the responses to red or blue conditioned stimulus was not affected by an injection of SAH. The results suggested that an injection of SAH increased the preference to white and green color, but did not increase the general brightness preference.
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects*; D003116:Color; D006054:Goldfish; D006710:Homocysteine / Q000031:analogs & derivatives*; D008029:Lighting; D012435:S-Adenosylhomocysteine / Q000494:pharmacology*
chemical_list: D006710:Homocysteine; D012435:S-Adenosylhomocysteine