The prefrontal cortex in sleep

Experimental data indicate a role for the prefrontal cortex in mediating normal sleep physiology, dreaming and sleep-deprivation phenomena. During nonrandom-eye-movement (NREM) sleep, frontal cortical activity is characterized by the highest voltage and the slowest brain waves compared to other cortical regions. The differences between the self-awareness experienced in waking and its diminution in dreaming can be explained by deactivation of the dorsolateral prefrontal cortex during REM sleep. Here, we propose that this deactivation results from a direct inhibition of the dorsolateral prefrontal cortical neurons by acetylcholine, the release of which is enhanced during REM sleep. Sleep deprivation influences frontal executive functions in particular, which further emphasizes the sensitivity of the prefrontal cortex to sleep.     

Infertility and Adjustment in Women: The Effects of Attachment Style and Social Support

The moderating effects of two psychological resources—attachment style and perceived social support—on adjustment were studied in 109 infertile women, examining the effects of duration of infertility and of primary (the woman has no child of her own) versus secondary (the woman already has a child of her own) infertility. Subjects were administered questionnaires measuring marital adjustment, psychological distress, and well-being. A model viewing attachment style and social support as moderators between stress psychological well-being was explored. The results showed that among the objective characteristics, only duration of infertility had any impact on the psychological measures. Furthermore, the psychological resources were highly associated with the adjustment scores in general. A hierarchical regression analysis showed that attachment style and social support both were related to marital quality and to psychological well-being and that these two resources function as stress moderators. It was concluded that attachment style and social support are important resources for individuals in times of stress, as exemplified in the infertility situation.     

Tomboyism,Sexual Orientation,and Adult Gender Roles Among Israeli Women

The purpose of this study was to examine self-reported connections between sexual orientation (SO) and tomboyism in an Israeli sample. This study also focused on the connection between tomboyism and adult gender roles, and between gender roles and SO. A sample of 127 participants was solicited from lesbian organizations and from workplaces. Participants' SO was self-defined twice, using a forced choice and a Kinsey-type scale. Results revealed a connection between tomboyism and lesbianism. The overall level of tomboyism was lower then reported elsewhere. A relationship between tomboyism and gender roles emerged only for adolescence, and SO was only marginal related to gender roles. The definitions of tomboyism, cultural effects, Israeli society, adolescence gender roles, and bisexualism are discussed.     

Rethinking naive realism

Philosophical Studies - Perceptions are externally-directed—they present us with a mind-independent reality, and thus contribute to our abilities to think about this reality, and to know what...     

Equivalence: an attempt at a history of the idea

Synthese - This paper proposes a reading of the history of equivalence in mathematics. The paper has two main parts. The first part focuses on a relatively short historical period when the notion...     

Is the victim Max (Planck) or Moritz? How victim type and social value orientation affect dishonest behavior

Does the potential victim of dishonest behavior—a family or a bank, a pensioner or an insurance firm—affect the propensity to engage in such behavior? We investigate the effect of victim type—an individual person or an impersonal institution—on dishonest behavior and test whether it interacts with potential perpetrators' social value orientation (prosocial or proself). In a between‐subjects design, we allowed experimental participants (N = 368) to misreport private information in order to increase (decrease) their profit (loss) at the expense of either another participant or the experimenter's budget. Both prosocials and proselfs engaged in dishonesty, but proselfs did so much more. Furthermore, prosocials reduced their dishonesty when the victim was another person, rather than an institution, but proselfs did not. A direct implication is that the dishonesty of prosocials may be curbed by increasing the salience of the adverse effect their dishonesty has on other individual people but that such interventions will not be effective for proselfs. In contrast with recent results, we did not find a general effect of increased dishonesty under a loss (vs. gain) frame.     

Knowledge central: A central role for knowledge attributions in social evaluations

Five experiments (N?=?1710) demonstrate the central role of knowledge attributions in social evaluations. In Experiments 1–3, we manipulated whether an agent believes, is certain of, or knows a true proposition and asked people to rate whether the agent should perform a variety of actions. We found that knowledge, more so than belief or certainty, leads people to judge that the agent should act. In Experiments 4–5, we investigated whether attributions of knowledge or certainty can explain an important finding on how people act based on statistical evidence, known as “the Wells effect”. We found that knowledge attributions, but not certainty attributions, mediate this effect on decision making.     

Psychological Safety: A Meta‐Analytic Review and Extension

Although psychological safety research has flourished in recent years, and despite the empirical support for the important role of psychological safety in the workplace, several critical questions remain. In order to address these questions, we aggregate theoretical and empirical works, and draw on 136 independent samples representing over 22,000 individuals and nearly 5,000 groups, to conduct a comprehensive meta‐analysis on the antecedents and outcomes of psychological safety. We not only present the nomological network of psychological safety but also extend this research in 4 important ways. First, we compare effect sizes to determine the relative effectiveness of antecedents to psychological safety. Second, we examine the extent to which psychological safety influences both task performance and organizational citizenship behaviors over and beyond related concepts such as positive leader relations and work engagement. Third, we examine whether research design characteristics and national culture alter validities within the nomological network, thus promoting a more accurate and contextualized understanding of psychological safety. Finally, we test the homology assumption by comparing the effect sizes of the antecedents and outcomes of psychological safety across individual and group levels of analysis. We conclude with a discussion of the areas in need of future examination.