A computational-level explanation of the speed of goal inference

The ability to understand the goals that drive another person’s actions is an important social and cognitive skill. This is no trivial task, because any given action may in principle be explained by different possible goals (e.g., one may wave ones arm to hail a cab or to swat a mosquito). To select which goal best explains an observed action is a form of abduction. To explain how people perform such abductive inferences, Baker, Tenenbaum, and Saxe (2007) proposed a computational-level theory that formalizes goal inference as Bayesian inverse planning (BIP). It is known that general Bayesian inference–be it exact or approximate–is computationally intractable (NP-hard). As the time required for computationally intractable computations grows excessively fast when scaled from toy domains to the real world, it seems that such models cannot explain how humans can perform Bayesian inferences quickly in real world situations. In this paper we investigate how the BIP model can nevertheless explain how people are able to make goal inferences quickly. The approach that we propose builds on taking situational constraints explicitly into account in the computational-level model. We present a methodology for identifying situational constraints that render the model tractable. We discuss the implications of our findings and reflect on how the methodology can be applied to alternative models of goal inference and Bayesian models in general.     

Identity configurations across love and work in emerging adults in romantic relationships

Love and work constitute two life-defining identity domains for emerging adults. The present study utilized a five-dimensional identity model and examined identity configurations across these two domains, capturing the degree to which identity statuses correspond across domains. A sample of German 18–30-year-olds who were either working or studying and engaged in a romantic relationship was assessed at baseline and three years later. Six identity clusters emerged in each domain. Combining identity clusters across love and work domains, 7 identity configurations were distinguished. Whereas some configurations were characterized by strong commitments in one or both domains, other configurations consisted of individuals scoring low on commitment and high on exploration and rumination. These configurations were differentially related to psychological symptoms, work stress and satisfaction, and family–work conflict, both concurrently and longitudinally. Individuals characterized by high commitments in love and work provided the most favorable responses on all outcomes.     

Gender, Ethnicity, Religiosity, and Same-sex Sexual Attraction and the Acceptance of Same-sex Sexuality and Gender Non-conformity

This study explored the role of gender, ethnicity, religiosity, and sexual attraction in adolescents’ acceptance of same-sex sexuality and gender non-conformity. Using an intersectionality perspective, we also tested whether the effects of gender, ethnicity, and religiosity on adolescents’ attitudes would function differently in adolescents with and without same-sex attractions. Data for this study were collected by means of a paper questionnaire completed by 1,518 secondary school students (mean age?=?14.56 years, SD?=?1.05) in Amsterdam, the Netherlands. The sample was 48.1% female and 51.9% male. Approximately one third of adolescents in the sample were of a non-Western ethnic background (32.3%, n?=?491) and 7.5% of the participants (n?=?114) reported experiencing same-sex attractions. Results of our analyses showed that adolescents in our sample who were male, of non-Western ethnicity, and who were more religious (as indicated by frequency of religious service attendance), were less accepting of same-sex sexuality and gender non-conformity in comparison to female, Western and less religious peers. We also found a significant interaction effect between religiosity and sexual attractions, but only in relation to evaluation of same-sex attracted, gender non-conforming females. The negative effect of religiosity on acceptance of same-sex attracted, gender non-conforming females was stronger among those adolescents who reported same-sex attractions.     

Big Five personality dimensions in Italian and Dutch adolescents: A cross-cultural comparison of mean-levels, sex differences, and associations with internalizing symptoms

In the present cross-national comparison, self-reported Big Five personality data on large samples of Dutch (N = 1521) and Italian (N = 1975) adolescents were employed. Results suggest that the personality of Dutch and Italian adolescents can be described by the same Big Five traits, but that these might have slightly different meanings to the Dutch and Italian adolescent respondents. Supplementary analyses uncovered that sex differences are largest among Italian adolescents. Further comparisons reveal subtle cross-national differences in personality-psychopathology relationships, with stronger associations of Emotional Stability with depression for Italian when compared to Dutch adolescents. Results underscore that cross-national comparisons of personality may be alluring to use in research, however the findings of these comparisons should be interpreted with caution.     

Self-Reported Psychopathic Traits in Children: Their Stability and Concurrent and Prospective Association with Conduct Problems and Aggression

The current study investigated the 18-month stability of self-reported psychopathic traits measured through the Youth Psychopathic traits Inventory–Child Version (YPI-CV) and their concurrent and prospective associations with conduct problems and aggression in a sample of 9–12 year olds (n = 159, 52% boys) from the community. Self-reported psychopathy scores were moderately to highly stable and traits were positively related to conduct problems both concurrently and at follow-up, the latter even after controlling for initial levels of conduct problems. Higher self-reported psychopathic traits were also related to higher reactive, but particularly proactive aggression at follow-up. Finally, children with persistently high levels of psychopathic traits exhibited higher levels of conduct problems and proactive aggression at follow-up than those with unstable or stable low psychopathic traits.     

Come rain or come shine: individual differences in how weather affects mood

There is a widespread belief that weather affects mood. However, few studies have investigated this link, and even less is known about individual differences in people's responses to the weather. In the current study, we sought to identify weather reactivity types by linking self-reported daily mood across 30 days with objective weather data. We identified four distinct types among 497 adolescents and replicated these types among their mothers. The types were labeled Summer Lovers (better mood with warmer and sunnier weather), Unaffected (weak associations between weather and mood), Summer Haters (worse mood with warmer and sunnier weather), and Rain Haters (particularly bad mood on rainy days). In addition, intergenerational concordance effects were found for two of these types, suggesting that weather reactivity may run in the family. Overall, the large individual differences in how people's moods were affected by weather reconciles the discrepancy between the generally held beliefs that weather has a substantive effect on mood and findings from previous research indicating that effects of weather on mood are limited or absent.     

Between Indifference and the Regimes of Truth. An Essay on Fundamentalism,Tolerance and Hypocrisy

Philosophia - There are two basic positions where tolerance as political strategy and moral viewpoint is rejected or made redundant. We are hostile to tolerance when we hold that we are defending...