COLOR DISCRIMINATION FROM VARIOUS SHADES OF GRAY IN THE TRAINED BLOWFLY, LUCILIA-CUPRINA
COLOR DISCRIMINATION FROM VARIOUS SHADES OF GRAY IN THE TRAINED BLOWFLY, LUCILIA-CUPRINA
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DOI：
10.1016/0022-1910(90)90152-6
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发表时间：
1990-01-01
影响因子：
2.2
通讯作者：
FUKUSHI, T
中科院分区：
文献类型：
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作者：
FUKUSHI, T
采用搜索行为的训练范式，研究了绵羊绿蝇的颜色辨别能力。通过在一片彩色纸上提供一滴蔗糖溶液来单独训练苍蝇，然后在由四种颜色（蓝色、绿色、黄色和红色）组成的许多标记的测试阵列中测试访问颜色标记。苍蝇能分辨这些颜色，尽管红色似乎是一种和黑色一样微弱的刺激。为了研究果蝇使用什么样的彩色刺激（色调或亮度）线索来区分彩色纸，在由一种颜色和三种灰色阴影组成的测试阵列上测试训练到特定颜色或灰色阴影的果蝇，其中一种灰色阴影在果蝇的主观亮度上类似于蓝色和绿色，而黄色介于两种灰色阴影之间。苍蝇能清楚地从灰色中分辨出蓝色、绿色和黄色，而它们却把红色和最暗的灰色混淆起来。在训练到两个较浅的灰色阴影后，苍蝇不能清楚地区分它们，尽管这两个灰色阴影之间的差异在苍蝇的主观亮度上大于蓝色和黄色之间的差异。这些结果表明，果蝇主要通过色调来区分颜色，而亮度感知在果蝇视觉系统的颜色视觉辨别中起辅助作用。
Colour discrimination of the sheep blowfly, Lucilia cuprina, was investigated by a training paradigm using the searching behaviour. Flies were individually trained by presenting a droplet of sucrose solution on a patch of coloured paper and then tested for visiting colour marks in a test array of many marks consisting of four colours (blue, green, yellow and red). The flies discriminate these colours, although red seems to be a stimulus as weak as black. To study what cue of the coloured stimuli (hue or brightness) the fly uses to discriminate between the coloured papers, flies trained to a specific colour or a grey shade were tested on the test array consisting of a colour and three shades of grey, one of the grey shades being similar to blue and green in the fly''s subjective brightness and yellow being intermediate between two of grey shades. The flies clearly discriminate blue, green and yellow from the shades of grey, while they confuse red with the darkest grey. After training to two lighter grey shades, the flies cannot clearly discriminate between them, although the difference between these two grey shades in the fly''s subjective brightness is larger than that between blue and yellow. These results suggest that the flies discriminate between the colours mainly by the hue, and that brightness perception plays a subsidiary role in visual discrimination of colour in the vision system of the fly.