Differential developmental trajectories for egocentric, environmental and intrinsic frames of reference in spatial memory

We studied the development of spatial frames of reference in children aged 3-6 years, who retrieved hidden toys from an array of identical containers bordered by landmarks under four conditions. By moving the child and/or the array between presentation and test, we varied the consistency of the hidden toy with (i) the body, and (ii) the testing room. The toy's position always remained consistent with (iii) the array and bordering landmarks. We found separate, additive performance advantages for consistency with body and room. These effects were already present at 3 years. A striking finding was that the room effect, which implies allocentric representations of the room and/or egocentric representations updated by self-motion, was much stronger in the youngest children than the body effect, which implies purely egocentric representations. Children as young as 3 years therefore had, and greatly favoured, spatial representations that were not purely egocentric. Viewpoint-independent recall based only on the array and bordering landmarks emerged at 5 years. There was no evidence that this later-developing ability, which implies object-referenced (intrinsic) representations, depended on verbal encodings. These findings indicate that core components of adult spatial competence, including parallel egocentric and nonegocentric representations of space, are present as early as 3 years. These are supplemented by later-developing object-referenced representations.     

Moderating effects of job insecurity in the relationships between procedural justice and employee well-being: Gender differences

This study tested the predictions of the uncertainty management model in explaining employee well-being. On the basis of this model we hypothesized that job insecurity would moderate the association between procedural justice (i.e., procedural and interactional justice) and well-being (i.e., emotional exhaustion and stress symptoms). Linear hierarchical regression models were used to analyse data on 1443 employees in the municipal technical sector. The findings of the study supported the hypothesis. Employees who perceived the organization as unfair and experienced job insecurity were at a higher risk of emotional exhaustion and stress symptoms. However, the results were partly gender specific.     

Can organizational justice mitigate the negative effects of shift work and fixed-term employment?

The present study examined whether organizational justice moderates the association of shift work and employment type with patient-related stress, stress symptoms, and musculoskeletal symptoms. Cross-sectional survey data from 1270 Finnish female elderly care staff aged 18–69 years was used. Analyses of covariance were used to examine the associations adjusted for age,marital status, education, and tenure. Organizational justice was associated with lower levels of patient-related stress, stress symptoms, and musculoskeletal symptoms. Organizational justice mitigated stress symptoms related to working night shift and three shifts. In addition, organizational justice mitigated the patient-related stress associated with working on fixed-term contracts. Organizational justice was also able to alleviate musculoskeletal symptoms associated with working on permanent contracts. Thus, we found evidence for organizational justice being able to mitigate the negative effects of shift work and employment type. Promoting organizational justice in organizations with shift work and lots of fixed-term contracts is of importance.     

Evidence for the integration of audiovisual emotional information at the perceptual level of processing

The present aim was to investigate how emotional expressions presented on an unattended channel affect the recognition of the attended emotional expressions. In Experiments 1 and 2, facial and vocal expressions were simultaneously presented as stimulus combinations. The emotions (happiness, anger, or emotional neutrality) expressed by the face and voice were either congruent or incongruent. Subjects were asked to attend either to the visual (Experiment 1) or auditory (Experiment 2) channel and recognise the emotional expression. The result showed that the ignored emotional expressions significantly affected the processing of attended signals as measured by recognition accuracy and response speed. In general, attended signals were recognised more accurately and faster in congruent than in incongruent combinations. In Experiment 3, possibility for a perceptual-level integration was eliminated by presenting the response-relevant and response-irrelevant signals separated in time. In this situation, emotional information presented on the nonattended channel ceased to affect the processing of emotional signals on the attended channel. The present results are interpreted to provide evidence for the view that facial and vocal emotional signals are integrated at the perceptual level of information processing and not at the later response-selection stages.     

Processing negative numbers by transforming negatives to positive range and by sign shortcut

Numerals are processed by a phylogenetically old analogue magnitude system. Can culturally new negative numerals be processed using this same representation? To find out whether magnitude representation could be used, we contrasted three possible processing mechanisms: an extended magnitude system for both positive and negative numbers, a mirroring mechanism that could transform negative values to the positive range to be processed on the positive magnitude system, and a sign shortcut strategy that can process the signs of numbers independently of the absolute values of numerals. To test these three hypotheses, a comparison task was used and the reaction time pattern, numerical distance, and Spatial-Numerical Association of Response Codes (SNARC) effect was analysed. The results revealed a mirroring process along with a sign shortcut mechanism. The SNARC effect was observed only when positive numbers were compared.     

Sicherheit Vor,Mit Rußland? Nato-osterweiterung und Folgen

Studies in East European Thought -     

Risky visuomotor choices during rapid reaching in childhood

Many everyday actions are implicit gambles because imprecisions in our visuomotor systems place probabilities on our success or failure. Choosing optimal action strategies involves weighting the costs and gains of potential outcomes by their corresponding probabilities, and requires stable representations of one's own imprecisions. How this ability is acquired during development in childhood when visuomotor skills change drastically is unknown. In a rewarded rapid reaching task, 6‐ to 11‐year‐old children followed ‘risk‐seeking’ strategies leading to overly high point‐loss. Adults' performance, in contrast, was close to optimal. Children's errors were not explained by distorted estimates of value or probability, but may reflect different action selection criteria or immature integration of value and probability information while planning movements. These findings provide a starting point for understanding children's risk‐taking in everyday visuomotor situations when suboptimal choices can be dangerous. Moreover, children's risky visuomotor decisions mirror those reported for non‐motor gambles, raising the possibility that common processes underlie development across decision‐making domains.     

Multi-Dimensional Consequentialism and Risk

In his new book, The Dimensions of Consequentialism, Martin Peterson proposes a version of multi-dimensional consequentialism according to which risk is one among several dimensions. We argue that Peterson’s treatment of risk is unsatisfactory. More precisely, we discuss a number of major problems of one-dimensional (objective or subjective) consequentialism, and show that none of them disappears with Peterson’s proposal. In ending our paper, we address the objection that our discussion overlooks the fact that Peterson’s proposal is not the best version of multi-dimensional consequentialism. Our reply is that the possibilities of improving multi-dimensional consequentialism are very limited as far as risk is concerned.     

Need for Controlling of the Filter Bubble Effect

Science and Engineering Ethics -