The brain prolactin system: involvement in stress response adaptations in lactation

This review focuses on prolactin as a potential candidate for the regulation of emotional and neuroendocrine stress responses in the brain. In particular, we summarise evidence for a brain prolactin receptor-mediated anxiolytic action both in female and male rats, and for inhibitory actions on the reactivity of the hypothalamic-pituitary-adrenal (HPA) axis and the neurohypophysial oxytocin system. These physiological functions of the brain prolactin system are especially relevant in the peripartum period, as an attenuation of behavioural and neuroendocrine stress responses has been described during pregnancy and lactation. At this time, there is an increase in brain prolactin receptor expression and binding, and an increase in hypothalamic prolactin gene expression. In the absence of a selective prolactin receptor antagonist, complementary approaches including chronic intracerebral infusion of prolactin, and antisense targeting of the long form of the brain prolactin receptor were used to investigate the actions of prolactin. The hypothesis of a brain prolactin system activated in the peripartum period which contributes to the adaptive changes in stress responsiveness in order to support reproductive functions is strongly emphasised.     

Psychological Well-Being of Sexual Minority Young Adults in Iceland: Assessing Differences by Sexual Attraction and Gender

The literature on sexual minority adolescents and young adults has highlighted a poor mental status among those groups compared to their heterosexual peers. Sexual minorities are also more likely to experience stress factors such as bullying and physical violence. However, sexual minority young adults have not been studied much in Iceland, a Nordic country renowned for a high degree of sexual equality. Given what the literature has shown to date, a noteworthy question is whether patterns of mental well-being of sexual minority adolescents and young adults in Iceland are comparable to other countries. The aim of the present study was to provide an assessment of mental well-being in sexual minority young adults in Iceland. We used population data to examine a selection of mental well-being indicators in 16–20 year-olds, both-sex-attracted and same-sex-attracted participants, and compared them to other-sex-attracted peers. Findings indicated that sexual minority young adults exhibited significantly greater levels of depressed mood, anger, and perceived stress than other-sex-attracted young adults. However, when stratified by gender and sexual attraction pattern, the analyses revealed that both-sex-attracted young women scored significantly higher on all indicators than any other group. We conclude that studies in this area should strive to distinguish between same-sex and both-sex attraction as well as to stratify analyses by gender. The well-being of both-sex-attracted young women is a compelling topic for future research.     

How Does the Economic Crisis Influence Adolescents’ Happiness? Population-Based Surveys in Iceland in 2000–2010

Macroeconomic downturns have been associated with a decrease in happiness among adults. The aim of this study was to explore the secular trend in happiness among Icelandic adolescents during a period of drastic change in the national economy as well as to identify which groups were most vulnerable and most resilient during the economic crisis. The data used in this study comes from series of population-based surveys of Icelandic adolescents in 2000, 2006, 2009, and 2010. Altogether, a total of 28.484 adolescents participated in the four surveys, representing 84 % of all 14–15 year old adolescents in Iceland. Results indicated that happiness increased by 5 % in the adolescent population from 2000 to 2010 despite the economic crisis. Nevertheless, adolescents who seldom spent time with their parents or perceived difficulties in getting emotional support from parents demonstrated a decrease in happiness. Those who found it easy to get emotional support from parents were happiest at every time point (91–93 %) while those who found it difficult were unhappiest (36–50 %). The association between socio- demographic factors and happiness was explored using multiple linear regression analyses where the year of survey, gender, age, family structure, parent’s education, time spent with parents and emotional support from parents altogether explained 13 % of the happiness variance. Emotional support from parents together with time spent with parents had the largest influence on adolescent’s happiness. An overall increase in time spent with parents was detected which might explain the increase in adolescents´ happiness over time. These results indicate that good relations with parents may protect adolescents from possible negative effect of a national economic crisis.     

Ingroup vitality and intergroup attitudes in a linguistic minority

In this study we argue that predictions of the impact of group status, status stability and status legitimacy on intergroup attitudes can be refined using the subjective perceptions of various dimensions of ingroup vitality. We tested the main and moderating effects of perceived present, future and the legitimacy of present ingroup vitality and perceived discrimination on intergroup attitudes in a nation-wide probability sample (N= 1,411) of Swedish-speaking Finns, controlling for ingroup identification. We found that those who perceived the legitimacy of present ingroup vitality to be low had more negative intergroup attitudes than those who perceived the legitimacy to be high. Perceived present and future ingroup vitality had no main effects on the dependent variable. Instead, perceived future ingroup vitality moderated the effect of perceived discrimination on intergroup attitudes. In addition, the perceived legitimacy of present ingroup vitality mediated the effect of perceived present ingroup vitality on intergroup attitudes.     

Religious Values in Clinical Practice are Here to Stay

Research to date has shown that health professionals often practice according to personal values, including values based on faith, and that these values impact medicine in multiple ways. While some influence of personal values are inevitable, awareness of values is important so as to sustain beneficial practice without conflicting with the values of the patient. Detecting when own personal values, whether based on a theistic or atheistic worldview, are at work, is a daily challenge in clinical practice. Simultaneously ethical guidelines of tone-setting medical associations like American Medical Association, the British General Medical Council and Australian Medical Association have been updated to encompass physicians’ right to practice medicine in accord with deeply held beliefs. Framed by this context, we discuss the concept of value-neutrality and value-based medical practice of physicians from both a cultural and ethical perspective, and reach the conclusion that the concept of a completely value-neutral physician, free from influence of personal values and filtering out value-laden information when talking to patients, is simply an unrealistic ideal in light of existing evidence. Still we have no reason to suspect that personal values, whether religious, spiritual, atheistic or agnostic, should hinder physicians from delivering professional and patient-centered care.

     

Ethical and Social Aspects of Neurorobotics

Science and Engineering Ethics - The interdisciplinary field of neurorobotics looks to neuroscience to overcome the limitations of modern robotics technology, to robotics to advance our...     

The ironic effect of national identification on support for collective action

Previous research has suggested that dual and superordinate identities are not only prerequisites of collective action among minority group members but they can also be associated with greater acceptance of the ingroup's disadvantaged position. In this three‐wave study among Ingrian Finnish migrants from Russia to Finland (N=153_T1?85_T3), we tested the indirect association between superordinate national identification (T1) and support for collective action (T3), via perceived permeability of group boundaries (T2). Support for collective action was operationalized as one's personal willingness, and the perceived need of the Russian‐speaking community, to engage in it. When controlling for the direct association between Russian minority identification and support for collective action, perceived permeability was shown to mediate the negative association between Finnish national identification and support for community's collective action. Thus, being close to the majority may make immigrants perceive group boundaries as more permeable and be less inclined to improve their group's position.     

How do Lithuanian adolescents address identity questions? A four-wave longitudinal study on change and stability in identity styles

Abstract

The present investigation evaluated multiple patterns of change and stability in Berzonsky’s identity styles (informational, normative, and diffuse-avoidant) in a four-annual-wave longitudinal study with 468 adolescent boys and girls from Lithuania. A combination of mean level changes, high rank-order stability, and high profile stability has been found in this study. First, levels of informational and normative identity styles remained stable for girls, but decreased significantly for boys; levels of diffuse-avoidant identity styles remained stable for girls and boys. Second, the rank-order stability of the normative and diffuse-avoidant styles was lower for boys, than for girls. Third, the mean profile stability was high for girls and moderate for boys. In general, our findings highlighted substantial gender differences in multiple indices of change and stability of identity styles.     

`Theoretical' and `Empirical' Reasoning Modes from the Neurological Perspective

Two modes of reasoning are used by humans – the `theoretical' (formal) and the `empirical' (non-formal), the first operating with inside-the-syllogism information, the second utilising out-of-the-syllogism information. Cross-cultural research (since Lévy-Bruhl, and especially after Luria) and developmental research (since Piaget) discovered respectively that members of `traditional' societies and children up to a certain age are able to operate only in the empirical mode.The paper brings together diverse discussions about usage of these modes in actual discourse (Ennis, Johnson-Laird, Moore, Olson, Ong, etc.). It concentrates on contradictory opinions as to whether contemporary individuals after they acquire the formal mode preserve and utilise the empirical mode. In this connection it discusses results of neurological experiments investigating performance in solving syllogisms under conditions of transitory suppression of the left or the right hemisphere (Deglin et al.) which demonstrated that one and the same person, depending on which hemisphere is suppressed, uses both strategies. The activated right hemisphere utilizes the `empirical' pattern, the activated left hemisphere utilizes the `logical' pattern. Thus both mechanisms of reasoning are present in the brain simultaneously, but each of them is controlled by different hemispheres.     

Identity and attitudinal reactions to perceptions of inter-group interactions among ethnic migrants: a longitudinal study

This 1-year follow-up study investigated the direct and indirect effects of past, anticipated, and actual experiences of inter-group interactions on the development of national identity and attitudes towards the national majority among ethnic re-migrants (N= 141) from Russia to Finland. According to the results, the quality of past inter-group contact in the pre-migration stage (T(1)) did not directly affect national identification and out-group attitudes in the post-migration stage (T(2)). Instead, the effect of contact quality at T(1) on national identification and out-group attitudes at T(2) was indirect via perceived discrimination and out-group rejection at T(2). In addition, there were two indirect pathways from out-group attitudes at T(1) to national identification and out-group attitudes at T(2), via pleasant contact experiences (further associated with positive out-group attitudes) and via perceived discrimination (further associated with negative attitudes and lower national identification) in the post-migration stage. Anticipated discrimination only had a direct effect on out-group attitudes in the post-migration stage. The results highlight the role of past and anticipated inter-group relations in the formation of post-migration inter-group interactions, which, in turn, are decisive for the formation of national identification and out-group attitudes of re-migrants.