The effect of background music and noise on the cognitive test performance of introverts and extraverts

Previous research has found that the performance of introverts on complex cognitive tasks is more negatively affected by distracters, e.g. music and background noise, than the performance of extraverts. The present study extends previous research by examining whether or not background noise would prove to be as distracting as music. In the presence of silence, background UK garage music and background noise, 118 female secondary school students carried out three cognitive tests. It was predicted that introverts would do less well on all of the tasks than extraverts in the presence of music and noise but in silence performance would be the same. A significant interaction was found on all three of the tasks. It was also predicted that there would be a main effect of background sound: Performance would be worse in the presence of music and noise than silence. Results confirmed this prediction with one exception. This study also found a positive correlation between extraversion and intelligence, the implications of which are also discussed. The findings support the Eysenckian hypothesis of the difference in optimum cortical arousal in introverts and extraverts. Copyright © 2010 John Wiley & Sons, Ltd.     

Perceived Spirituality,Mindfulness and Quality of Life in Psychiatric Patients

There is some evidence of the relationship between spirituality and quality of life, but there are few bibliographic references on these constructs for patients suffering from mental illness; thus, this study was aimed at revealing the possible role of spiritual outlooks as a protective factor in these individuals. The sample consisted of 96 Portuguese psychiatric patients, selected from a psychiatric hospital and assessed based on parameters for quality of life, spirituality and mindfulness. The data support some theories about the nature of the spirituality. Spiritual beliefs are poorly correlated with the quality of life index, and there is a moderate association between these beliefs and some aspects of mindfulness. It is suggested that a spiritual outlook of psychiatric patients should be taken into account in psychological interventions.     

When friends exchange negative feedback

In four studies, we document an increase in the amount of negative feedback friends and colleagues exchange as their relationship deepens. We find that both actual and perceived relationship depth increase the amount of negative feedback people seek from and provide to each other, as well as their tendency to invest in a focal (relationship or performance) goal in response to negative feedback. The amount of positive feedback on goal pursuit, by contrast, remains stable as the relationship deepens. We attribute the increase in negative feedback to the different meaning of such feedback for people in deep versus shallow relationships: only in the context of deep relationships does negative feedback signal insufficient resource investment in the focal goal, and hence close friends and colleagues seek, provide, and respond to negative feedback.     

In need of liberation or constraint? How intergroup attitudes moderate the behavioral implications of intergroup ideologies

This study examined how behavioral responses to ideologies prompting other- or self-focus during intergroup exchanges depend on what individuals see when they look out at an outgroup interaction partner or in toward themselves. Specifically, we predicted that the outward focus on learning about and from outgroup members encouraged by multiculturalism would benefit lower-prejudice individuals (LPs) but instead amplify the implications of negative perceptions for higher-prejudice individuals (HPs). In contrast, we predicted that the evaluative concerns and self-focus induced by anti-racism would harm LPs’ behavior by leading them to second-guess acting on positive impulses but improve HPs’ behavior by leading them to rein in unfavorable reactions. Results were generally consistent with these predictions. Color-blindness had a negative effect not moderated by prejudice. These results suggest that tailoring the ideology promoted in a specific setting to the particular individuals who will be exposed to it might enhance the effectiveness of intervention efforts.     

A New Normalization Strategy for the Implicational Fragment of Classical Propositional Logic

The introduction and elimination rules for material implication in natural deduction are not complete with respect to the implicational fragment of classical logic. A natural way to complete the system is through the addition of a new natural deduction rule corresponding to Peirce’s formula (((A → B) → A) → A). E. Zimmermann [6] has shown how to extend Prawitz’ normalization strategy to Peirce’s rule: applications of Peirce’s rule can be restricted to atomic conclusions. The aim of the present paper is to extend Seldin’s normalization strategy to Peirce’s rule by showing that every derivation Π in the implicational fragment can be transformed into a derivation Π′ such that no application of Peirce’s rule in Π′ occurs above applications of →-introduction and →-elimination. As a corollary of Seldin’s normalization strategy we obtain a form of Glivenko’s theorem for the classical {→}-fragment.     

Emotion affects action: Midcingulate cortex as a pivotal node of interaction between negative emotion and motor signals

Affective pictures drive the activity of brain networks and impact behavior. We showed previously that viewing unpleasant pictures interfered in the performance of a basic nonemotional visual detection task. In the present study, we employed functional magnetic resonance imaging to test the hypothesis that behavioral interference may result from the interaction between negatively valenced and motor-related signals in the brain. As in our previous study (Pereira et al., 2006), participants performed a simple target detection task that followed the presentation of unpleasant or neutral pictures. Our results revealed that an unpleasant emotional context modulated evoked responses in several regions engaged by the simple target detection task. In particular, the midcingulate cortex was recruited when participants performed target detection trials during the unpleasant context, and signal responses in this region closely mirrored the pattern of behavioral interference (as revealed via reaction time). Our findings suggest that the midcingulate cortex may be an important site for the interaction between negatively valenced signals and motor signals in the brain and that it may be involved in the implementation of defensive responses, such as freezing.     

Relations among media influence,body image,eating concerns,and sexual orientation in men: A preliminary investigation

The current study explored the relation between sexual orientation, media persuasion, and eating and body image concerns among 78 college men (39 gay; 39 straight). Participants completed measures of sexual orientation, eating disorder symptoms, appearance-related anxiety, perceived importance of physical attractiveness, perceptions of media influence, and media exposure. Gay men scored significantly higher on drive for thinness, body dissatisfaction, and body image-related anxiety than their straight counterparts. Additionally, perceptions of media influence were higher for gay men, and significantly mediated the relation between sexual orientation and eating and body image concerns. Sexual orientation also moderated the relation between perceived media influence and beliefs regarding the importance of physical attractiveness, as this relation was significant for gay men, but not straight men. The current findings suggest that gay men's increased vulnerability to media influence partially accounts for the relatively high rate of eating pathology observed in this population.     

Religiosity and Economic Development in Singapore

This paper examines religiosity in modern and industrialized Singapore. Several theories argue that economic development brings about secularization and the general decline of personal religiosity in modern and industrialized societies. Using data gathered from the World Values Survey-Singapore (2002) as well as data from other sources, this article finds that Singaporeans are not very secularized; they are religious (religion is important in people's lives); they have a high level of belief in (metaphysical) religious aspects; and they fulfill their religious obligations and activities. The main reasons for this apparent lack of secularization are, firstly, that religion is deeply embedded in Singapore society; secondly, that the state has both directly and indirectly promoted religion; and thirdly, that a process of religious rationalization has taken place.     

The Moderating Role of Gender and Gender Role Attitudes on the Link Between Spousal Support and Marital Quality

Researchers who examine the relation of gender role attitudes to division of household labor and marital quality often overlook its relation to emotional spousal support. Moreover, research on gender and marriage often ignores how gender role attitudes may explain the link between spousal support and marital quality. Secondary data analyses on a nationally representative sample of U.S. adults examined the interaction of gender and gender role attitudes on spousal support and marital quality. Emotional spousal support predicted better marital satisfaction and less conflict for traditional women and egalitarian men, whereas both instrumental and emotional spousal support predicted better marital satisfaction for egalitarian women and traditional men. These results suggest that within, as well as between, gender differences are important for understanding the contribution of spousal support to perceived marital quality.     

Social Dominance Orientation,Gender, and Increasing Educational Exposure1

Using a large panel sample of undergraduates, we measured the social dominance orientation (SDO) scores of men and women once a year across a 4½‐year period. Employing repeated‐measures ANOVAs, we found that, even after controlling for the character of students' academic majors (hierarchy enhancing or hierarchy attenuating), males showed significantly higher SDO scores than did females across the entire college career. The data are discussed in terms of the invariance hypothesis within social dominance theory.