Uploaded September 2020 | Updated September 2026, 3 weeks ago
Research in social psychology on prejudice and discrimination shows that people tend to treat other groups as "all the same." This is the "outgroup homogeneity bias." In this video, we explore studies testing the outgroup homogeneity effect and the "cross-race effect," including new evidence from neuroscience.
REFERENCES:
Linville, P. W., Fischer, G. W., & Salovey, P. (1989). Perceived distributions of the characteristics of in-group and out-group members: Empirical evidence and a computer simulation. Journal of Personality and Social Psychology, 57(2), 165–188. doi.org/10.1037/0022-3514.57.2.165
Park, B., & Rothbart, M. (1982). Perception of out-group homogeneity and levels of social categorization: Memory for the subordinate attributes of in-group and out-group members. Journal of Personality and Social Psychology, 42(6), 1051–1068. doi.org/10.1037/0022-3514.42.6.1051
Boldry, J. G., Gaertner, L., & Quinn, J. (2007). Measuring the measures: A meta-analytic investigation of the measures of outgroup homogeneity. Group Processes & Intergroup Relations, 10(2), 157–178. doi.org/10.1177/1368430207075153
Pickett, C. L., & Brewer, M. B. (2001). Assimilation and differentiation needs as motivational determinants of perceived in-group and out-group homogeneity. Journal of Experimental Social Psychology, 37, 341-348. doi.org/10.1006/jesp.2000.1469
Brigham, J. C., & Malpass, R. S. (1985). The role of experience and contact in the recognition of faces of own- and other-race persons. Journal of Social Issues, 41(3), 139-155. doi.org/10.1111/j.1540-4560.1985.tb01133.x
Reggev, Brodie, Cikara, & Mitchell (2020). Human face-selective cortex does not distinguish between members of a racial outgroup. eNeuro, 7(3). doi.org/10.1523/ENEURO.0431-19.2020
IMAGE CREDITS:
Face Images from the MR2:
Strohminger, N., Gray, K., Chituc, V., Heffner, J., Schein, C., and Heagins, T.B. (in press). The MR2: A multi-racial mega-resolution database of facial stimuli. Behavior Research Methods.
Other images from: freepik.com
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Opinion Science is a psychology podcast exploring the science of our opinions, where they come from and how they change. Each week I talk to social scientists and professional communicators about how the work they do reveals key insights about public opinion and persuasion.
Follow this psychology podcast...
Website: opinionsciencepodcast.com
Apple Podcasts: podcasts.apple.com/us/podcast/opinion-science/id1506227206
Twitter: twitter.com/OpinionSciPod
Facebook: facebook.com/OpinionSciPod
Research in social psychology on prejudice and discrimination shows that people tend to treat other groups as "all the same." This is the "outgroup homogeneity bias." In this video, we explore studies testing the outgroup homogeneity effect and the "cross-race effect," including new evidence from neuroscience.
REFERENCES:
Linville, P. W., Fischer, G. W., & Salovey, P. (1989). Perceived distributions of the characteristics of in-group and out-group members: Empirical evidence and a computer simulation. Journal of Personality and Social Psychology, 57(2), 165–188. doi.org/10.1037/0022-3514.57.2.165
Park, B., & Rothbart, M. (1982). Perception of out-group homogeneity and levels of social categorization: Memory for the subordinate attributes of in-group and out-group members. Journal of Personality and Social Psychology, 42(6), 1051–1068. doi.org/10.1037/0022-3514.42.6.1051
Boldry, J. G., Gaertner, L., & Quinn, J. (2007). Measuring the measures: A meta-analytic investigation of the measures of outgroup homogeneity. Group Processes & Intergroup Relations, 10(2), 157–178. doi.org/10.1177/1368430207075153
Pickett, C. L., & Brewer, M. B. (2001). Assimilation and differentiation needs as motivational determinants of perceived in-group and out-group homogeneity. Journal of Experimental Social Psychology, 37, 341-348. doi.org/10.1006/jesp.2000.1469
Brigham, J. C., & Malpass, R. S. (1985). The role of experience and contact in the recognition of faces of own- and other-race persons. Journal of Social Issues, 41(3), 139-155. doi.org/10.1111/j.1540-4560.1985.tb01133.x
Reggev, Brodie, Cikara, & Mitchell (2020). Human face-selective cortex does not distinguish between members of a racial outgroup. eNeuro, 7(3). doi.org/10.1523/ENEURO.0431-19.2020
IMAGE CREDITS:
Face Images from the MR2:
Strohminger, N., Gray, K., Chituc, V., Heffner, J., Schein, C., and Heagins, T.B. (in press). The MR2: A multi-racial mega-resolution database of facial stimuli. Behavior Research Methods.
Other images from: freepik.com
==================
Opinion Science is a psychology podcast exploring the science of our opinions, where they come from and how they change. Each week I talk to social scientists and professional communicators about how the work they do reveals key insights about public opinion and persuasion.
Follow this psychology podcast...
Website: opinionsciencepodcast.com
Apple Podcasts: podcasts.apple.com/us/podcast/opinion-science/id1506227206
Twitter: twitter.com/OpinionSciPod
Facebook: facebook.com/OpinionSciPod
