Printing a black-and-white negative on to colour paper produces a similar monochrome effect.

将黑白底片冲印在彩色纸上产生一种类似的单色效果。

《柯林斯英汉双解大词典》

In order to reveal people's implicit prejudice, participants are asked to watch a computer monitor while a series of positive words, negative words, and pictures of black or white faces appear.

为了揭示人们隐含的偏见，受试者按要求观看一台电脑显示屏，上面出现了一系列正面的、负面的词语，还有黑人的、白人的面孔。

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For the second task, the groupings are reversed - participants are now supposed to associate positive words with black faces and negative words with white faces.

第二部，将分组颠倒了一下，要求他们将正面词语跟黑人面孔联系在一起，而将负面词语跟白人面孔划归一处。

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John Coplans, on the other hand, chose Type 55 film (which yields a black-and-white positive and negative) in the 1980s to record his own stolid nude body in interlocking blocks of hairy flesh, self-portraits that owe something to Henry Moore and Philip Guston.

WSJ: The Polaroid SX-70 as Sexy Tech | Frances Lehman Loeb Art Center | By Richard B. Woodward

For many centuries, white has had positive connotations in Chinese culture and black negative ones.

BBC: A Point Of View: How China sees a multicultural world