Individual Differences in Antisocial Punishment in Public Goods Situations: The Interplay of Cortisol with Testosterone and Dominance

This research investigates which endocrinological and psychological factors are associated with individuals' tendency to engage in destructive antisocial punishment, that is, to costly punish cooperative individuals in public goods situations. In this work, we focus on the interplay of endogenous cortisol with testosterone and dominance. We applied the dual‐hormone hypothesis according to which testosterone is positively associated with destructive and dominant behavior but only in individuals with low levels of cortisol. Study 1 shows that individuals are more likely to engage in destructive antisocial punishment in a public goods game with the option to punish when their testosterone level is high, given that their level of cortisol is low, which bolsters the dual‐hormone hypothesis. In contrast, no significant interaction effect of testosterone and cortisol emerges for the punishment of uncooperative free‐riders (altruistic punishment). In a second study, we build on these findings and document that self‐reported dominance is only positively associated with antisocial punishment (but not with altruistic punishment) when cortisol is low. In sum, the results indicate the importance of taking endocrinological and psychological factors (and their interactions) into account in order to reach a comprehensive understanding of individuals' behavior in social dilemma situations. Copyright © 2013 John Wiley & Sons, Ltd.     

Modelling audiovisual integration of affect from videos and music

Two experiments examined how affective values from visual and auditory modalities are integrated. Experiment 1 paired music and videos drawn from three levels of valence while holding arousal constant. Experiment 2 included a parallel combination of three levels of arousal while holding valence constant. In each experiment, participants rated their affective states after unimodal and multimodal presentations. Experiment 1 revealed a congruency effect in which stimulus combinations of the same extreme valence resulted in more extreme state ratings than component stimuli presented in isolation. An interaction between music and video valence reflected the greater influence of negative affect. Video valence was found to have a significantly greater effect on combined ratings than music valence. The pattern of data was explained by a five parameter differential weight averaging model that attributed greater weight to the visual modality and increased weight with decreasing values of valence. Experiment 2 revealed a congruency effect only for high arousal combinations and no interaction effects. This pattern was explained by a three parameter constant weight averaging model with greater weight for the auditory modality and a very low arousal value for the initial state. These results demonstrate key differences in audiovisual integration between valence and arousal.     

How a terror attack affects right‐wing authoritarianism,social dominance orientation,and their relationship to torture attitudes

Self‐reported level of right‐wing authoritarianism (RWA ), the two facets of social dominance orientation (SDO ‐Dominance and SDO ‐Egalitarianism) and pro‐torture attitudes were measured both in the immediate aftermath (terror salience, N = 152) of the terror attacks in Paris and Brussels and when terrorism was not salient (non‐salience, N = 140). Results showed that RWA and pro‐torture attitudes, but not SDO ‐Dominance and SDO ‐Egalitarianism, were significantly higher immediately after. Furthermore, RWA and SDO both predicted pro‐torture attitudes more strongly under terror salience. We argue that the reason why RWA is higher under terror salience is a response to external threat, and that SDO ‐Dominance may be more clearly related to acceptance of torture and other human‐rights violations, across context. Future research on the effects of terror‐related events on sociopolitical and pro‐torture attitudes should focus on person‐situation interactions and also attempt to discriminate between trait and state aspects of authoritarianism.     

How “dark” personality traits and perceptions come together to predict racism in Australia

This study provided initial insights into the shape of racism in Australia from the perspective of personality psychology. In this study (N = 201) racism towards Anglo-Australians and Middle-Easterners was assessed in relation to the Dark Triad traits (i.e., psychopathy, narcissism, & Machiavellianism), social dominance, authoritarianism, and perceptions of whether the world was dangerous/competitive. While the groups did not differ in the Dark Triad traits, Middle-Easterners did see the world as more dangerous and were more authoritarian than Anglo-Australians. There was evidence of an in-group/out-group bias, but this was localized to ratings of Middle-Easterners. Racism towards Anglo-Australians by Middle-Easterners appears to be mostly associated with perceiving the world as a dangerous and competitive place whereas racism in the reverse appears to be associated with perceptions of dangerous world, authoritarianism, and social dominance. Importantly, the Dark Triad traits exerted little influence in predicting racism but did predict these proximal factors suggesting those who are racist are not necessarily “evil” but, instead, have some latent biases about how they see the world that lead to racist tendencies.     

Distribution-free tests of stochastic dominance for small samples

One variable is said to “stochastically dominate” another if the probability of observations smaller than x is greater for one variable than the other, for all x. Inferring stochastic dominance from data samples is important for many applications of econometrics and experimental psychology, but little is known about the performance of existing inferential methods. Through simulation, we show that three of the most widely used inferential methods are inadequate for use in small samples of the size commonly encountered in many applications (up to 400 observations from each distribution). We develop two new inferential methods that perform very well in a limited, but practically important, case where the two variables are guaranteed not to be equal in distribution. We also show that extensions of these new methods, and an improved version of an existing method, perform quite well in the original, unlimited case.     

The Hemispheric Lateralization for Processing Geometric Word/Shape Combinations: The Stroop-Shape Effect

The authors conducted 4 experiments to test whether hemispheric lateralization occurs for the processing of geometric word–shape combinations. In 3 experiments, participants responded to geometric shapes combined with geometric words (square, circle, triangle). In the 4th experiment, stimuli were combinations of geometric shapes and nongeometric words. The authors predicted that it would take longer to respond in incongruent conditions (e.g., the word “square” combined with the shape of a circle) than in congruent conditions. The authors found the strongest incongruency effects for the dominant hemisphere—that is, the left hemisphere for responding to words and the right hemisphere for responding to shapes. A Shape Interfering Properties hypothesis (SIP) is a possible explanation for these results.     

Information Transmission in Young Children: When Social Information Is More Important Than Nonsocial Information

The authors’ aim was to use a highly novel open diffusion paradigm to investigate the transmission of social information (i.e., gossip) and general knowledge within 2 groups of 10- and 11-year-old children. Four children, 2 from each group, acted as a primed information source, selected on the basis of sex and dominance ranking (high or low) within the group. Each source received 1 piece of gossip and 1 piece of general knowledge from the experimenter during natural class interaction, and the information was allowed to diffuse naturally within the group. Results revealed that gossip was transmitted more frequently than knowledge, and that male sources were more likely to transmit gossip than female sources. The relationship between characteristics of the source, and characteristics of the gossip recipient, also appeared influential with the dominant male source transmitting gossip to exclusively to friends, and the nondominant male source transmitting to individuals of higher peer regard than themselves.     

A Primer on Psychological Theory

This paper addresses some of the principal constituent elements in the formation of theories in the science of psychology. To that end, means of theory construction, concomitant theory functions and types, and norms of acceptance are presented. Where appropriate, efforts were made to cite particular historic or contemporary theories of human behavior as cogent exemplars.