Lesley A Duncan’s research while affiliated with University of British Columbia and other places

Contrary to assumptions underlying current psychological theories of human mating, throughout much of human history parents often controlled the mating behavior of their children. In the present research, the authors tested the hypothesis that the level of parental influence on mating is associated with the level of collectivism in a culture. A scale to assess the degree of parental influence on mate choice was administered to four samples: 371 students from the Netherlands; 197 young people from Kurdistan, Iraq; 80 students from 30 different countries studying in the Netherlands; and 102 students in Canada. As expected, the Kurdish sample reported higher levels of parental influence on mate choice than the Dutch sample, and parental influence was found to be higher in more collectivistic countries. In the Canadian sample, participants with an East Asian background (who have greater exposure to collectivistic cultural norms) indicated greater parental influence than did participants with a European background.

Prejudice against elderly people (“ageism”) is an issue of increasing social concern, but the psychological roots of ageism are only partially understood. Recent theorizing suggests that ageism may result, in part, from fallible cue-based disease-avoidance mechanisms. The perception of subjectively atypical physical features (including features associated with aging) may implicitly activate aversive semantic concepts (implicit ageism), and this implicit ageism is likely to emerge among perceivers who are especially worried about the transmission of infectious diseases. We report an experiment (N = 88) that provides the first empirical test of this hypothesis. Results revealed that implicit ageism is predicted by the interactive effects of chronic perceptions of vulnerability to infectious disease and by the temporary salience of disease-causing pathogens. Moreover, these effects are moderated by perceivers' cultural background. Implications for public policy are discussed.

a b s t r a c t Many phenomena in the realm of social cognition and behavior are influenced by the extent to which individuals perceive themselves to be vulnerable to infectious diseases. Existing individual-difference measures that might assess this construct are limited in their applicability. This article reports the devel-opment and psychometric evaluation of a 15-item perceived vulnerability to disease questionnaire, designed to assess individual differences in chronic concerns about the transmission of infectious dis-eases. Data from 1539 respondents revealed that the 15 items loaded on two internally consistent sub-scales. One subscale assesses beliefs about one's own susceptibility to infectious diseases (Perceived Infectability); the other assesses emotional discomfort in contexts that connote an especially high poten-tial for pathogen transmission (Germ Aversion). Additional analyses provide evidence bearing on the con-vergent, discriminate, and predictive validity of each subscale.

We tested the hypothesis that, compared with sociosexually restricted individuals, those with an unrestricted approach to mating would selectively allocate visual attention to attractive opposite-sex others. We also tested for sex differences in this effect. Seventy-four participants completed the Sociosexual Orientation Inventory, and performed a computer-based task that assessed the speed with which they detected changes in attractive and unattractive male and female faces. Differences in reaction times served as indicators of selective attention. Results revealed a Sex X Sociosexuality interaction: Compared with sociosexually restricted men, unrestricted men selectively allocated attention to attractive opposite-sex others; no such effect emerged among women. This finding was specific to opposite-sex targets and did not occur in attention to same-sex others. These results contribute to a growing literature on the adaptive allocation of attention in social environments.

From evolutionary psychological reasoning, we derived the hypothesis that chronic and contextually aroused feelings of vulnerability to disease motivate negative reactions to foreign peoples. The hypothesis was tested and supported across four correlational studies: chronic disease worries predicted implicit cognitions associating foreign outgroups with danger, and also predicted less positive attitudes toward foreign (but not familiar) immigrant groups. The hypothesis also received support in two experiments in which the salience of contagious disease was manipulated: participants under high disease-salience conditions expressed less positive attitudes toward foreign (but not familiar) immigrants and were more likely to endorse policies that would favor the immigration of familiar rather than foreign peoples. These results reveal a previously under-explored influence on xenophobic attitudes, and suggest interesting linkages between evolved disease-avoidance mechanisms and contemporary social cognition. Copyright © 2004 SAGE Publications London Thousand Oaks, CA and New Delhi.