This research aimed to explore and contextualise research on the electrophysiological potentials evoked in response to human face recognition within the South African context. Previous research provides evidence that there is a measurable difference in the electrophysiological response to faces of people of other racial groups when compared to the response to one’s own race group. The difference is seen in greater peak amplitudes in response to one’s own-race (indicating greater attention being granted) in comparison to the other-race. This has been labelled the Cross-Race Effect. This research also attempted to expand on previous research in the use of a mixed-race sample and realistic colour images, in contrast to previously used greyscale images. A purposive sample of 40 students at the University of the Witwatersrand was split equally between gender and race (Black and White) with an Indian control group. The electrical potentials elicited by the facial stimuli were extracted from the ongoing electroencephalograms. The results obtained displayed inverse results to those found internationally, with Black participants eliciting no differences between racial groups, and White participants eliciting a greater peak amplitude to Black (other-race) faces. A gender effect was also seen, with White participants eliciting greater peak amplitudes towards female faces, while Black participant again showed no differences between male and female faces. Trends displayed in the results, and the significance thereof, are discussed, and the importance of the effect of society of developmental neurology is highlighted, with the rephrasing of cultural neuroscience to Socio-Cultural Neuroscience. The results ultimately suggest that the internationally seen cross-race effect is absent in a young South African population (with the principle of increased exposure leading to increased attention still in effect), indicating that South Africa is beginning to move away from racial discrimination, and moving towards a future of true integration and equality.

Past research has investigated the cross-race effect in the context of eyewitnesses and jury decision-making. The main goal of my thesis was to gain further insight into participants’ knowledge of the cross-race effect and how this impacted participants’ discrimination of same- and cross-race identifications. One hundred fifty-nine undergraduate students from UOIT viewed a series of showup identification videos. I found that participants were better able to discriminate accurate from inaccurate same-race identifications than cross-race identifications. However, participants believed White witnesses more and found them more credible than South Asian witnesses. Further research should investigate other conditions that influence people’s abilities to discriminate accurate from inaccurate eyewitness identifications. / UOIT

In eyewitness identification cases, suspect misidentification is the leading factor attributed to wrongful convictions (Scheck, Neufeld, & Dwyer, 2000), thus, it is of applied importance to identify factors that contribute to the false recollection of faces. One potential factor addressed in the current study was whether face memory and subsequent identification for other-race-faces is biased by the degree to which a target face posses facial features associated with ethnic identity. Individual differences in level of processing (global, local) and prejudice were tested as potential mechanisms contributing to biased judgments. In Experiment 1 a standard face recognition task revealed that prejudice, level of processing, and face-type interacted to predict recognition bias. In Experiment 2 results showed that positive misidentifications (i.e., choosing an incorrect foil) were more likely when a stereotypical versus non-stereotypical Black actor was witnessed committing the crime. Results are discussed in terms of theoretical and practical implications.

No description available.

Pulling from past research on cross-race identifications, the purpose of this study is to investigate the effects of both mixed race participants and perpetrators on eyewitness accuracy and confidence levels. In the study, participants will be shown a randomly assigned photograph of an individual from one of three racial categories: Asian, Mixed (some part Asian), and non-Asian. They will then be asked to read a fictional convenience store robbery vignette and identify the perpetrator from a 9 person simultaneous photo lineup, rate their confidence, and answer a series of questions regarding the diversity of their neighborhood, past or present school or workplace, and friend group. There are no predicted main effects. However, there are three expected interactions: the first between participant race and perpetrator race, such that the perpetrator race will not influence the accuracy for Asian and non-Asian participants. The second proposed interaction is between exposure and race, such that high exposure will cause race to be irrelevant with regard to identification accuracy. The third expected interaction is between participant race and perpetrator race, such that perpetrator race will not influence the confidence levels for mixed race participants, but will influence the accuracy for Asian and non-Asian participants.

In eyewitness identification cases, suspect misidentification is the leading factor attributed to wrongful convictions (Scheck, Neufeld, & Dwyer, 2000), thus, it is of applied importance to identify factors that contribute to the false recollection of faces. One potential factor addressed in the current study was whether face memory and subsequent identification for other-race-faces is biased by the degree to which a target face posses facial features associated with ethnic identity. Individual differences in level of processing (global, local) and prejudice were tested as potential mechanisms contributing to biased judgments. In Experiment 1 a standard face recognition task revealed that prejudice, level of processing, and face-type interacted to predict recognition bias. In Experiment 2 results showed that positive misidentifications (i.e., choosing an incorrect foil) were more likely when a stereotypical versus non-stereotypical Black actor was witnessed committing the crime. Results are discussed in terms of theoretical and practical implications.

No description available.

No description available.

No description available.