Evidence for perceptual bias toward the Scheduled Caste/Scheduled Tribes (SC/ST)—a community historically oppressed and treated as untouchables in India—was found through a series of studies. We hypothesized that the SC/ST are perceived as less human in comparison to the dominant castes (General Category), leading to adverse consequences to the dehumanized group. Studies were designed to measure the effect of Caste on social perception by including participants belonging to General and SC/ST categories. Study 1 used an implicit association test and found that SC/ST are subjected to subtle dehumanization. Study 2 extended the findings using a moderately explicit measure of dehumanization and the results indicated biased perception of humanness in the SC/ST targets, albeit a valence effect. Study 3 demonstrated blatant dehumanization of SC/ST using an explicit measure. Overall the results indicate the dehumanization of the marginalized community that can have implications on attitudes and behaviors toward them.

中文翻译：

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预定种姓和预定部落的非人道化（SC / ST）：隐式，中度和公然措施的证据

通过一系列研究，发现了对预定种姓/预定部落（SC / ST）的感知偏见的证据。我们假设与主流种姓（一般类别）相比，SC / ST被认为是人类少，从而给非人性化群体带来不利影响。设计研究的目的是通过纳入属于一般和SC / ST类别的参与者来衡量种姓对社会观念的影响。研究1使用隐式关联测试，发现SC / ST受到细微的非人性化作用。研究2使用适度明确的非人性化措施扩展了发现，结果表明，尽管存在价态效应，但在SC / ST目标中对人性的看法仍存在偏差。研究3证明了使用明确的措施公然地将SC / ST减人化。总体而言，结果表明，边缘化社区的非人性化可能会对他们的态度和行为产生影响。