The Country's Crime Rate Moderates the Relation Between Authoritarian Predispositions and the Manifestations of Authoritarianism: A Multilevel,Multinational Study

We performed a multilevel, multinational test of Stenner's model on authoritarianism using the 2008 European Values Survey dataset (N = 55 199, nested in 38 nations). We focussed on the effects exerted on four authoritarian manifestations (racial intolerance, political intolerance, negative attitudes towards immigrants, and moral intolerance) by the cross‐level interaction between participants' authoritarian predispositions (assessed in terms of childrearing values) and their country's crime rate. Associations between authoritarian predispositions and racial intolerance, political intolerance, negative attitudes towards immigrants, and moral intolerance were significantly stronger among participants living in countries characterised by high crime rates than those among participants living in countries with low crime rates. Limitations, implications, and future directions of this study are discussed. Copyright © 2013 European Association of Personality Psychology.     

Commitment to a developing preference and predecisional distortion of information

People tend to distort their evaluation of decision-relevant information in favor of the currently preferred alternative. We test whether this predecisional distortion of information is amplified by increased commitment to that current preference. We manipulated commitment, without changing the preferred option’s content, by requiring participants to indicate their preference either by circling or by darkening a sizable box (cf. feature-positive effect). Experiment 1 revealed that the effort to darken substantially increased predecisional distortion. Experiment 2 ruled out elaboration as an explanation for the effect of darkening. Experiment 3 showed that, among participants who attributed the darkening effort to an external source, predecisional distortion decreased when the source was believed to summon effort. These findings suggest that the developing commitment to a tentatively preferred alternative is one driver of predecisional distortion.     

Role of the dorsal hippocampus in object memory load

The dorsal hippocampus is crucial for mammalian spatial memory, but its exact role in item memory is still hotly debated. Recent evidence in humans suggested that the hippocampus might be selectively involved in item short-term memory to deal with an increasing memory load. In this study, we sought to test this hypothesis. To this aim we developed a novel behavioral procedure to study object memory load in mice by progressively increasing the stimulus set size in the spontaneous object recognition task. Using this procedure, we demonstrated that naive mice have a memory span, which is the number of elements they can remember for a short-time interval, of about six objects. Then, we showed that excitotoxic selective lesions of the dorsal hippocampus did not impair novel object discrimination in the condition of low memory load. In contrast, the same lesion impaired novel object discrimination in the high memory load condition, and reduced the object memory span to four objects. These results have important heuristic and clinical implications because they open new perspective toward the understanding of the role of the hippocampus in item memory and in memory span deficits occurring in human pathologies, such as Alzheimer's disease and schizophrenia.     

Addressing Diversity in the Decade of Behavior: Focus on Women of Color

The Decade of Behavior provides an opportunity to reflect on the need for psychologists to develop a "diversity mindfulness" in their education, training, and research activities, a need that has never been more urgent. In this article, we focus on the lives of women of color to illustrate diversity-mindful feminist principles that may inform research and program development related to other aspects of diversity. We discuss perspectives and priorities of women of color in psychology. We consider why implementing feminist psychology's inclusive vision for research is a continuing struggle, particularly with regard to research on poor women, and identify some contributions and priorities of feminist research on women of color that relate to Decade goals of achieving a "safer, better educated, healthier, more democratic and more prosperous nation" (White, Travis, & Russo, 2001, p. x). Understanding and incorporating perspectives of women of color in Decade activities is essential if researchers are to generate new knowledge "to prepare the world for facing emerging problems in the 21st century" (Decade of Behavior website: http://www.decadeofbehavior.org).