Mixed Race Studies

Dynamic representations of race: processing goals shape race decoding in the fusiform gyri

Social Cognitive and Affective Neuroscience
Volume 9 Issue 3 (March 2014)
pages 326-332
DOI: 10.1093/scan/nss138

Christian Kaul
Department of Psychology and Center for Neural Science
New York University

Kyle G. Ratner
Department of Psychology
New York University

Jay J. Van Bavel, Assistant Professor of Social Psychology
New York University

People perceive and evaluate others on the basis of social categories, such as race, gender and age. Initial processing of targets in terms of visually salient social categories is often characterized as inevitable. In the current study, we investigated the influence of processing goals on the representation of race in the visual processing stream. Participants were assigned to one of two mixed-race teams and categorized faces according to their group membership or skin color. To assess neural representations of race, we employed multivariate pattern analysis to examined neural activity related to the presentation of Black and White faces. As predicted, patterns of neural activity within the early visual cortex and fusiform gyri (FG) could decode the race of face stimuli above chance and were moderated by processing goals. Race decoding in early visual cortex was above chance in both categorization tasks and below chance in a prefrontal control region. More importantly, race decoding was greater in the FG during the group membership vs skin color categorization task. The results suggest that, ironically, explicit racial categorization can diminish the representation of race in the FG. These findings suggest that representations of race are dynamic, reflecting current processing goals.

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Is race erased? Decoding race from patterns of neural activity when skin color is not diagnostic of group boundaries

Social Cognitive and Affective Neuroscience
Volume 8, Issue 7 (October 2013)
pages 750-755
DOI: 10.1093/scan/nss063

Kyle G. Ratner
Department of Psychology
New York University

Christian Kaul
Department of Psychology and Center for Neural Science
New York University

Jay J. Van Bavel, Assistant Professor of Social Psychology
New York University

Several theories suggest that people do not represent race when it does not signify group boundaries. However, race is a visually salient social category associated with skin tone and facial features. In the current study, we investigated whether race could be decoded from distributed patterns of neural activity in the fusiform gyri and early visual cortex when visual features that often co-vary with race were orthogonal to group membership. To this end, we used multivariate pattern analysis to examine an fMRI dataset that was collected while participants assigned to mixed-race groups categorized own-race and other-race faces as belonging to their newly assigned group. Whereas conventional univariate analyses provided no evidence of biased race-based responses in the fusiform gyri or early visual cortex, multivariate pattern analysis suggested that race was represented within these regions. Moreover, race was represented in the fusiform gyri to a greater extent than early visual cortex, suggesting that the fusiform gyri results do not merely reflect low-level perceptual information (e.g., color, contrast) from early visual cortex. The findings indicate that patterns of activation within specific regions of the visual cortex may represent race even when overall activation in these regions is not driven by racial information.

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Winning the Race

NYU Alumni Magazine
Fall 2012

Andrea Crawford

As the first African-American president runs for reelection, researchers examine the subliminal influence of political ads

 In 1990, longtime North Carolina Senator Jesse Helms was trailing challenger Harvey Gantt, an African-American who supported affirmative action, when the Helms campaign produced the infamous “hands” commercial. As the camera focused on the hands of a white person holding a letter, the narrator said: “You needed that job, and you were the best qualified, but they had to give it to a minority.” Helms went on to win the election.

In another famous appeal, an ad for the 1988 Republican presidential candidate George H.W. Bush featured the menacing mug shot of convicted murderer Willie Horton. The spot explained how the African-American had committed assault while on furlough from a Massachusetts prison—a program supported by Michael Dukakis, the state’s governor and the Democratic presidential candidate. Bush won the presidency in a landslide.

It was into this environment that Charlton McIlwain, associate professor of media, culture, and communication at the Steinhardt School of Culture, Education, and Human Development, came of age. These types of appeals clearly work, he thought, and he set out to determine how and why. Around the same time, David Amodio was first exploring research that showed self-avowed egalitarians actually exhibited unconscious biases. Now an NYU associate professor of psychology and neural science, he began his career asking how such automatic types of prejudice could exist in opposition to one’s beliefs. Until recently, these kinds of questions were complicated by a reliance on often-flawed self-reports—people simply feel uncomfortable admitting bias and are sometimes not even conscious of it. But today, McIlwain and Amodio have come together in a timely pursuit. As the first African-American president runs for reelection, they are investigating the power of racial appeals in political ads by turning to neuroscience…

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On the ideology of Hypodescent: Political Conservatism Predicts Categorization of Racially Ambiguous Faces as Black

Journal of Experimental Social Psychology
In Press (May 2013)
32 pages

Amy R. Krosch
Department of Psychology
New York University

Leslie Berntsen
University of Southern California

David M. Amodio, Associate Professor of Psychology and Neural Science
New York University

John T. Jost, Professor of Psychology and Politics
New York University

Jay J. Van Bavel, Assistant Professor of Psychology
New York University

According to the principle of hypodescent, multiracial individuals are categorized according to their most socially subordinate group membership. We investigated whether the tendency to apply this principle is related to political ideology. In three studies, participants categorized a series of morphed faces that varied in terms of racial ambiguity. In each study, self-reported conservatism (vs. liberalism) was associated with the tendency to categorize ambiguous faces as Black. Consistent with the notion that system justification motivation helps to explain ideological differences in racial categorization, the association between conservatism and hypodescent was mediated by individual differences in opposition to equality (Study 2) and was stronger when U.S. participants categorized American than Canadian faces (Study 3). We discuss ways in which the categorization of racially ambiguous individuals in terms of their most subordinate racial group may exacerbate inequality and vulnerability to discrimination.

Barack Obama (2004) jokingly describes his mother as “White as milk,” but the fact is that he is seen as the United States’ first Black president. Following the repeal of anti-miscegenation laws and the gradual normalizing of interracial relationships, the United States of America has become an increasingly multiracial society, with a 32% increase in the number of citizens identifying as more than one race over the last decade (U.S. Census Bureau, 2011). Nevertheless, monoracial labels are frequently applied to multiracial individuals, and “White” is rarely applied to persons of mixed racial heritage (Hirschfeld, 1995).

The tendency to categorize multiracial individuals according to their most socially subordinate racial group membership reflects the principle of hypodescent, which is closely associated with the notorious “one drop rule” in American history (Banks & Eberhardt, 1998; Hollinger, 2003). From the earliest days of American slavery through the Civil Rights Era, this principle was formally employed to subjugate individuals with any non-White heritage by denying them full rights and liberties under the law. For instance, individuals who had lived in the United States for years but were one-quarter or even one-eighth Japanese were forced to live in internment camps during World War II (Werner, 2000).

Social psychological research reveals that the principle of hypodescent characterizes racial categorization even today. When research participants are presented with images of Black/White biracial targets, they are more likely to classify them as Black than White (e.g., Halberstadt, Sherman, & Sherman, 2011; Ho, Sidanius, Levin, & Banaji, 2011; Peery & Bodenhausen, 2008). Furthermore, it appears to take fewer minority characteristics (e.g., facial features or ancestors) to be judged as “Black,” compared to the proportion of majority characteristics it takes to be judged as “White” (Ho et al., 2011)…

…In this article, we propose that biased racial categorization may also be related to ideological motives. Prior research has indicated that race perception and categorization may be influenced by a number of motives, including social identification (Knowles & Peng, 2005) and biological essentialism (Plaks, Malahy, Sedlins, & Shoda, 2012). Furthermore, Caruso, Mead, and Balcetis (2009) found that political conservatives were more likely to believe that a darkened photo of Barack Obama represented his actual appearance, as compared with liberals and moderates. These results are broadly consistent with public opinion data revealing that Republicans are more likely than Democrats and Independents to state that President Obama is Black rather than biracial (Pew Research Center, 2011). In the current research, we explored whether liberals and conservatives would differ in their categorization of racially ambiguous individuals in a nonpolitical context and examined potential psychological mediators of this proposed relationship. More specifically, we conducted three studies to investigate the hypothesis that there would be ideological differences in biased racial categorization…

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