title: Light and dark adaptation of crayfish visual cells depending on extracellular calcium concentration.
abstract: Lowering of extracellular Ca2+-concentration from 14 X 10(-3) M to ca. 10(-6) M (using 1 mM ethyleneglycol bis (beta-aminoethylether)-N,N'-tetraacetic acid (EGTA)) results in weaker light adaptation by a 2 s light exposure and faster dark adaptation (half time 45 +/- 1%) of crayfish visual cells.
mesh_terms: D000818:Animals; D003400:Astacoidea / Q000502:physiology*; D002118:Calcium / Q000494:pharmacology*; D003623:Dark Adaptation / Q000187:drug effects*; D008564:Membrane Potentials; D010775:Photic Stimulation; D012160:Retina / Q000187:drug effects / Q000502:physiology*
chemical_list: D002118:Calcium