Across four studies, we tested whether the content of collective nostalgia has untapped utility for understanding intergroup relations. In Study 1a, we demonstrated variance in the content of the nostalgizing American Christians report—variance that influenced attitudes towards outgroups. Participants who reported longing for a more open society expressed less anti-immigration sentiments and less blatant prejudice against Muslims compared to those longing for a more homogeneous society. In Study 1b, we replicated these results using a representative sample of Poles, thus extending them to a different socio-political context. In Study 2, we demonstrated that the content of collective nostalgia experienced can be experimentally manipulated. Specifically, experimentally primed openness-focused nostalgia (relative to a control condition) weakened American Christians' anti-immigration sentiments (but not blatant prejudice against Muslims). Study 3 replicated the results of Study 2 with an improved experimental manipulation. Overall, the findings show significant effects that content of collective nostalgia has on anti-immigration sentiments as well as some indication that the content of collective nostalgia influences blatant intergroup prejudice. These results have theoretical relevance for the study of collective nostalgia (i.e., content matters) as well as practical relevance in demonstrating that variations in nostalgia-inducing rhetoric can shape intergroup attitudes.

在四项研究中，我们测试了集体怀旧的内容是否尚未用于理解群体间关系。在研究1a中，我们证明了怀旧的美国基督徒报告的内容存在差异-这种差异影响了对外来群体的态度。与渴望建立一个更加统一的社会的参与者相比，那些渴望建立一个更加开放的社会的参与者对穆斯林的反移民情绪和偏见更少。在研究1b中，我们使用波兰人的代表性样本复制了这些结果，从而将其扩展到了不同的社会政治环境。在研究2中，我们证明了可以体验性地体验集体怀旧的内容。特别，以实验性的，以开放为中心的怀旧（相对于控制条件）削弱了美国基督徒的反移民情绪（但对穆斯林没有明显的偏见）。研究3通过改进的实验操作复制了研究2的结果。总体而言，研究结果表明，集体怀旧的内容对反移民情绪具有重大影响，同时也表明集体怀旧的内容影响公然的群体间偏见。这些结果对集体怀旧（即内容问题）的研究具有理论意义，并且在证明怀旧引起的修辞上的差异可以塑造群体间态度方面具有实际意义。研究3通过改进的实验操作复制了研究2的结果。总体而言，研究结果表明，集体怀旧的内容对反移民情绪具有重大影响，同时也表明集体怀旧的内容影响公然的群体间偏见。这些结果对集体怀旧（即内容问题）的研究具有理论意义，并且在证明怀旧诱导的修辞的变化可以塑造群体间态度方面具有实际意义。研究3通过改进的实验操作复制了研究2的结果。总体而言，调查结果表明，集体怀旧的内容对反移民情绪具有重大影响，同时也表明集体怀旧的内容会影响公然的群体间偏见。这些结果对集体怀旧（即内容问题）的研究具有理论意义，并且在证明怀旧引起的修辞上的差异可以塑造群体间态度方面具有实际意义。