What factors predict anti‐Black bias in pain perception? An internal meta‐analysis across 40 experimental studies

Abstract Racial disparities in pain care affecting Black Americans are mirrored by a similar perceptual bias: perceivers see pain less readily on Black (vs. White) faces. Here, we examine the findings of the initial wave of research on this phenomenon, described herein as anti‐Black bias in pain perception. Specifically, we conducted an internal meta‐analysis across 40 studies conducted in the U.S. with primarily White samples ( N = 6252) assessing the generalizability, robustness, and psychological correlates of anti‐Black bias in pain perception. We also assessed the evidence for accounts of this bias focused on intergroup processes, racialized stereotypes and prejudice, dehumanization, and contact. This meta‐analysis strongly confirms our prior findings. Moreover, anti‐Black bias in pain perception is consistently associated with bias in treatment recommendations. These effects are robust to differences in stimuli, samples, and perceiver gender and race. Notably, both Black and White perceivers demonstrate more conservative perceptual thresholds for seeing pain on Black faces, suggesting this bias is not merely a consequence of group membership. Further, increased dehumanization of and decreased intergroup contact with Black individuals predicts biased pain perception and treatment recommendations, though these effects were small. These results demonstrate the robustness of anti‐Black bias in pain perception and establish a strong foundation for future inquiry.