Fear conditioning and extinction in anxiety- and depression-prone persons

Anxiety and depression frequently co-occur and may share similar deficits in the processing of emotional stimuli. High anxiety is associated with a failure in the acquisition and extinction of fear conditioning. Despite the supposed common deficits, no research has been conducted on fear acquisition and extinction in depression. The main aim of the present study was to investigate and compare fear acquisition and extinction in anxiety- and depression-prone participants. Non-clinical anxious, depressive, anxious-depressive and control participants performed a fear discrimination task. During acquisition, the CS+ predicted an aversive event (unconditioned stimulus, US) and the CS? safety (no US). During extinction, the CS+ was no longer followed by the US, rendering it (temporarily) into a safety signal. On each CS participants rated their US expectancy; skin conductance responses (SCRs) were measured throughout. The expectancy scores indicated that high anxiety resulted in less safety learning during acquisition and extinction; no effect of depression was observed. SCRs showed that high-anxiety persons displayed less discrimination learning (CS+ minus CS?) during acquisition than low-anxiety persons. During extinction, high-depression persons demonstrated more discriminative SCR than low-depression persons. The observed discrepancies in response patterns of high-anxiety and -depression persons seem to indicate distinctive information processing of emotional stimuli.     

Toupee or not toupee? The role of instructional set,centrality, and relevance in change blindness

The influence of instructional set, centrality, and relevance on change blindness was examined. In a one-shot paradigm, participants reported alterations of items across pairs of driving scenes under two different instructional conditions. Alterations involved either relocations or disappearances of the same items and included driving-relevant and driving-irrelevant alterations to items of central and marginal interest. Three main findings emerged: Centrality was not a function of driving relevance/meaningfulness, disappearances of central interest items were identified significantly more often than positional changes to them, and instructions highlighting the importance of the task to driving attenuated change blindness. The possible role of a simple listing strategy in mediating successful identification of alterations is discussed. Together, the findings demonstrate that cognitive factors play an important role in change blindness.     

The paradox of phase transitions in the light of constructive mathematics

Synthese - The paradox of phase transitions raises the problem of how to reconcile the fact that we see phase transitions happen in concrete, finite systems around us, with the fact that our best...     

The Influence of Religion and Ethnicity on Family Planning Approval: A Case for Women in Rural Western Kenya

The role of sociocultural factors such as religion and ethnicity in aiding or hampering family planning (FP) uptake in rural Western Kenya, a region with persistently high fertility rates, is not well established. We explored whether attitudes towards FP can be attributed to religious affiliation and/or ethnicity among women in the region. Findings show that religion and ethnicity have no impact; the most significant factors are level of education and knowledge about the benefits of FP for the mother. FP interventions ought to include strategies aimed at enhancing women’s knowledge about the positive impacts of family planning.     

Andrzej de Lazari et al. (eds.), Idei v Rossii/Idee w Rosji/Ideas in Russia; Leksykon rosyjsko-polsko-angielski

Studies in East European Thought -     

Position,Preference and Personality: A Microlevel Explanation of Negativity in Day‐To‐Day Politics

While many scholars investigate the determinants of negativity in the political sphere, it remains largely unclear why some politicians are more negative than others. Studies thus far lack explanations at the individual level, and they almost exclusively focus on negativity during electoral races. Surveying national and regional representatives in Belgium (N = 228), this study seeks to explain individual politicians’ willingness to go negative during everyday politics. The results show that negativity is not so much related to institutionally driven differences between representatives but more to politicians’ personal characteristics and preference roles. Negative politics, hence, is not an inevitable result of institutional structures, rules, and norms, but rather depends on the characteristics and motivations of the individual representatives citizens elect.     

From darkness to light: children speak of divine encounter

Abstract

Studies have shown that children share both positive and dark spiritual experiences. The former dominates the literature but whilst the need to address the dark side of spirituality has been raised it has not, as yet, been dealt with as widely as the more positive aspects. This paper draws on an empirical study with 44 children aged 8–11 who were interviewed in school after visiting a sacred space. Three key themes arising from their conversations are covered in this paper: divine encounter; physical feelings and fear. It is argued that the most appropriate way of understanding these phenomena is to draw on different fields and disciplines, notably although not exclusively, theology, psychoanalysis, psychology and neuroscience. The paper concludes that it is important to recognise both the light and dark and the blurred boundaries between them, in addition to different ways of perceiving them, in order to understand the whole child.