COLOR-VISION IN THE CALIFORNIA SEA LION (ZALOPHUS-CALIFORNIANUS)

被引:35
作者
GRIEBEL, U
SCHMID, A
机构
[1] Department of Zoology, University of Vienna, A-1090 Wien
关键词
ZALOPHUS-CALIFORNIANUS; CALIFORNIA SEA LION; OTARIINAE; COLOR VISION; COLOR DISCRIMINATION;
D O I
10.1016/0042-6989(92)90239-F
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Three California sea lions were trained to discriminate between a colored stimulus and two shades of gray in a 3-fold simultaneous choice situation. The colors blue, green and red were tested against shades of gray varying from low to high relative brightness. All animals distinguished blue from gray; two animals also distinguished green from gray; but none discriminated between red and gray. Our data suggest that California sea lions have dichromatic color vision. Their ability to discriminate colors in the blue-green part of the spectrum could be a physiological adaptation to their aquatic coastal habitat.
引用
收藏
页码:477 / 482
页数:6
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