Hilbert's epsilon as an operator of indefinite committed choice

Hilbert and Bernays avoided overspecification of Hilbert's ε-operator. They axiomatized only what was relevant for their proof-theoretic investigations. Semantically, this left the ε-operator underspecified. After briefly reviewing the literature on semantics of Hilbert's epsilon operator, we propose a new semantics with the following features: We avoid overspecification (such as right-uniqueness), but admit indefinite choice, committed choice, and classical logics. Moreover, our semantics for the ε simplifies proof search and is natural in the sense that it mirrors some cases of referential interpretation of indefinite articles in natural language.     

Externalizing symptoms among children of alcoholic parents: Entry points for an antisocial pathway to alcoholism

The authors examined heterogeneity in risk for externalizing symptoms in children of alcoholic parents, as it may inform the search for entry points into an antisocial pathway to alcoholism. That is, they tested whether the number of alcoholic parents in a family, the comorbid subtype of parental alcoholism, and the gender of the child predicted trajectories of externalizing symptoms over the early life course, as assessed in high-risk samples of children of alcoholic parents and matched controls. Through integrative analyses of 2 independent, longitudinal studies, they showed that children with either an antisocial alcoholic parent or 2 alcoholic parents were at greatest risk for externalizing symptoms. Moreover, children with a depressed alcoholic parent did not differ from those with an antisocial alcoholic parent in reported symptoms. These findings were generally consistent across mother, father, and adolescent reports of symptoms; child gender and child age (ages 2 through 17); and the 2 independent studies examined. Multialcoholic and comorbid-alcoholic families may thus convey a genetic susceptibility to dysregulation along with environments that both exacerbate this susceptibility and provide few supports to offset it.     

Adaptive psychophysical procedures, loss functions, and entropy

In this article, we present a new strategy for locating a point on a psychometric function (threshold determination) for yes-no procedures, called EntFirst. Our results show that it performs better than many existing strategies for estimating the 50% threshold that are commonly used in nonlaboratory settings. We also provide a review of existing algorithms for finding thresholds, with an emphasis on identifying the types of problems for which each algorithm is useful. Finally, we address a number of issues that are not adequately covered in the literature, including choosing an appropriate loss function to evaluate the performance of an algorithm for a given problem.     

The creation of a postcolonial subject: The Chicago and Ateneo de Manila schools and the Peace Corps in the Philippines, 1960–1970

In the 1950s and 1960s scholars from the University of Chicago and the Ateneo de Manila created social scientific knowledge that helped establish the Peace Corps as a Cold War institution in the Philippines. Central were the social scientists at the University of Chicago and the Ateneo de Manila University who established a knowable postcolonial subject: “the Filipino,” which resulted from their research on Philippine values. In this context, the Ateneo/Chicago social scientists developed the “SIR,” the “smooth interpersonal relation” model that entails the notion that Filipinos and Filipinas particularly valued this nonconfrontational skill set among people. The SIR model was taught by social science experts to early Peace Corps volunteers as they prepared for their assignments in the Philippines. The article shows how the SIR model could cause distress and confusion as it was applied by Peace Corps volunteers in the Philippines.     

Responses to exclusion are moderated by its perceived fairness

Experimental exclusion manipulations may induce exclusion in a way that participants perceive as unfair. Groups often use exclusion punitively to correct inappropriate behavior, however, which may lead to perceptions that it is potentially justified or fair. The current studies examined if individuals' perceptions of fairness with respect to an exclusion experience moderated their reactions. Participants wrote about or imagined a time in which they were excluded after they did something wrong (fair exclusion) or excluded even though they did nothing wrong (unfair exclusion) or about a mundane experience unrelated to exclusion (control). Compared with fair exclusion, unfair exclusion resulted in significantly weaker efficacy needs satisfaction (Studies 1, 2, and 4), greater antisocial intent (Study 3), and greater sensitivity to signs of interpersonal acceptance and rejection in a visual search task (Study 4). These results suggest that it is important to consider the role of perceived fairness in shaping responses to exclusion.     

Are you looking my way? Ostracism widens the cone of gaze

Ostracized individuals demonstrate an increased need for belonging. To satisfy this need, they search for signals of inclusion, one of which may be another person’s gaze directed at oneself. We tested if ostracized, compared to included, individuals judge a greater degree of averted gaze as still being direct. This range of gaze angles still viewed as direct has been dubbed “the cone of (direct) gaze”. In the current research, ostracized and included participants viewed friendly-looking face stimuli with direct or slightly averted gaze (0°, 2°, 4°, 6°, and 8° to the left and to the right) and judged whether stimulus persons were looking at them or not. Ostracized individuals demonstrated a wider gaze cone than included individuals.     

The Role of Gender in Mental-Illness Stigma: A National Experiment

ABSTRACT— The stigma of mental illness imposes substantial costs on both the individuals who experience mental illness and society at large. Understanding the psychological underpinnings of this stigma is therefore a matter of practical and theoretical significance. In a national, Web-based survey experiment, we investigated the role played by gender in moderating mental-illness stigma. Respondents read a case summary in which the gender of the person was orthogonally manipulated along with the type of disorder; the cases reflected either a male-typical disorder or a female-typical disorder. Results indicated that when cases were gender typical, respondents felt more negative affect, less sympathy, and less inclination to help, compared to when cases were gender atypical. This pattern can be explained by the fact that gender-typical cases were significantly less likely to be seen as genuine mental disturbances.     

The Impact of Sexual Victimization on Personality: A Longitudinal Study of Gendered Attributes

Little is known about how sexual victimization may affect a woman’s self-reported personality ratings. In the present study endorsement ratings of gendered attributes, as measured by the Extended Personal Attributes Questionnaire, were examined over a 3-year span using multiple group latent growth modeling. Differences in the endorsement of gendered attributes between college female non-victims (N?=?158) and victims (N?=?158) of sexual aggression were tested. Whereas endorsement of communal and positive agentic attributes were stable across time, victims remained consistently less traditionally feminine (i.e., positively communal and nurturing) than non-victims. Victims also appeared to become relatively more self-focused (i.e., negative masculinity) across time than non-victims. This pattern suggests that sexual victimization may have lasting effects on victims’ ability to focus on the nurturing, trusting aspects of relationships; rather they have a preoccupation with their own needs and goals that appears to strengthen with time. Such a pattern sheds insight into how self-processes may contribute to the relationship difficulties often observed in sexual assault victims. Implications of these results for both personality and sexual aggression researchers are discussed.