Brain activation on pre-reading tasks reveals at-risk status for dyslexia in 6-year-old children

In this fMRI-study, 6-year-old children considered at risk for dyslexia were compared with an age-/gender-matched control group for differences in brain activation when presented with visual stimuli differing in demands for literacy processing. Stimuli were nameable pictures, brand logos familiar to children, and written words - these were either regularly spelled using early-acquired rules ("alphabetic") or more complex ("orthographic"). Brain responses distinguished between the presentation conditions, as a function of group, within many cortical areas. Activation in the alphabetic and orthographic conditions in the left angular gyrus correlated with individual at-risk index scores, and activation in inferior occipito-temporal regions further indicated differential activation for the two groups related to orthographic processing, especially. Since similar patterns are reported in adult dyslexics when processing written words, it appears that sensitivity to the cortical differentiation of reading networks is established prior to formal literacy training.     

Simulationen in den Sozialwissenschaften

Summary   Simulation in the Social Sciences. Computer simulation—hereafter just called ‘simulation’— more and more is getting an important tool in scientific research and development. Simulations provide powerful means for quite different scientific disciplines, for instance for cosmology as well as for economics, and it seems that they can help to extend the borderline of science. However, from a methodological point of view, besides their benefits one can identify several theoretical problems which can occur in the process of scientific research. Some of these problems shall be discussed and consequences of these problems for the use of simulations shall be outlined.     

A Configurational Perspective on the Theory of Planned Behaviour to Understand Employees' Change‐Supportive Intentions

This study aims to deepen the understanding of the psychological processes involved in the formation of change‐supportive intentions by adopting a configurational perspective. To investigate potential configurations in relevant psychological processes suggested by the theory of planned behaviour (Ajzen, 1991 ), classical linear analytic methods are supplemented by the application of two case‐centred methods: latent profile analysis (LPA) and fuzzy set qualitative comparative analysis (fsQCA). The study uses data from two measurement times drawing on employees of a city council (t1: N = 1,589; t2: N = 1,524) undergoing complex and continuous organisational changes. While the case‐centred results from LPA and fsQCA generally accord well with the results from regression analysis, they consistently highlight the relevance of configurational patterns. Specifically, LPA and fsQCA reveal that different combinations of change‐related attitudes, subjective norms, and perceived behavioural control relate to the presence or absence of high supportive intentions. These results provide valuable insights for fostering employees' change‐supportive intentions. Moreover, the present study demonstrates that case‐centred analytical methods can essentially enrich research and theory‐building in change management as well as in the field of behavioural intention formation in general.     

Methods for Practising Ethics in Research and Innovation: A Literature Review,Critical Analysis and Recommendations

This paper provides a systematic literature review, analysis and discussion of methods that are proposed to practise ethics in research and innovation (R&I). Ethical considerations concerning the impacts of R&I are increasingly important, due to the quickening pace of technological innovation and the ubiquitous use of the outcomes of R&I processes in society. For this reason, several methods for practising ethics have been developed in different fields of R&I. The paper first of all presents a systematic search of academic sources that present and discuss such methods. Secondly, it provides a categorisation of these methods according to three main kinds: (1) ex ante methods, dealing with emerging technologies, (2) intra methods, dealing with technology design, and (3) ex post methods, dealing with ethical analysis of existing technologies. Thirdly, it discusses the methods by considering problems in the way they deal with the uncertainty of technological change, ethical technology design, the identification, analysis and resolving of ethical impacts of technologies and stakeholder participation. The results and discussion of our literature review are valuable for gaining an overview of the state of the art and serve as an outline of a future research agenda of methods for practising ethics in R&I.     

Lexical integration: Sequential effects of syntactic and semantic information

Both semantic and syntactic context constraints can influence word processing at the level of lexical integration. In event-related brain potentials (ERPs), semantic integration is reflected by a negativity around 400 msec (N400), whereas phrase structure assignment and syntactic integration are assumed to be reflected by an early left anterior negativity and a late positivity (P600), respectively. An ERP study is presented in which participants read different types of sentences whose terminal verb was either congruent with the preceding context or incongruent due to a phrase structure violation, a semantic violation, or both. The main finding was that only the pure semantic violation condition, but not the combined semantic and syntactic violation condition, elicited a large N400. The two conditions containing phrase structure violations were predominantly characterized by a P600. Both semantic violation conditions, moreover, displayed a late negativity around 700 msec that overlapped with the P600 in the double violation condition. The absence of an N400 effect for elements that are syntactically as well as semantically incongruent with prior context suggests an early influence of phrase structure information on processes of lexical-semantic integration. The present data are discussed in comparison to previous ERP findings, and a new view of lexical integration processes is proposed.     

Unemployment impairs mental health: Meta-analyses

The effect of unemployment on mental health was examined with meta-analytic methods across 237 cross-sectional and 87 longitudinal studies. The average overall effect size was d = 0.51 with unemployed persons showing more distress than employed persons. A significant difference was found for several indicator variables of mental health (mixed symptoms of distress, depression, anxiety, psychosomatic symptoms, subjective well-being, and self esteem). The average number of persons with psychological problems among the unemployed was 34%, compared to 16% among employed individuals. Moderator analyses demonstrated that men and people with blue-collar-jobs were more distressed by unemployment than women and people with white-collar jobs. Linear and curvilinear moderating effects of the duration of unemployment were also identified. Furthermore, the negative effect of unemployment on mental health was stronger in countries with a weak level of economic development, unequal income distributions, or weak unemployment protection systems compared to other countries. Meta-analyses of longitudinal studies and natural experiments endorsed the assumption that unemployment is not only correlated to distress but also causes it. Seemingly inconsistent longitudinal results of older meta-analyses can be explained by retest artifacts. We also identified mental-health related selection effects during job loss and job search, but they are weak. With an effect size of d = −.35 intervention programs for unemployed people were found to be moderately effective in ameliorating unemployment-related distress among continuously unemployed persons.     

The effects of background noise on dichotic listening to consonant-vowel syllables

Lateralization of verbal processing is frequently studied with the dichotic listening technique, yielding a so called right ear advantage (REA) to consonant-vowel (CV) syllables. However, little is known about how background noise affects the REA. To address this issue, we presented CV-syllables either in silence or with traffic background noise vs. 'babble'. Both 'babble' and traffic noise resulted in a smaller REA compared to the silent condition. The traffic noise, moreover, had a significantly greater negative effect on the REA than the 'babble', caused both by a decreased right ear response as well as an increased left ear response. The results are discussed in terms of alertness and attentional factors.