Adult age differences in subjective and objective measures of strategy use on a sequentially cued prediction task

Differences in strategy use are thought to underlie age-related performance deficits on many learning and decision-making tasks. Recently, age-related differences in learning to make predictions were reported on the Triplets Prediction Task (TPT). Notably, deficits appeared early in training and continued with experience. To assess if age differences were due to early strategy use, neural networks were used to objectively assess the strategies implemented by participants during Session 1. Then, the relationship between these strategies and performance was examined. Results revealed that older adults were more likely to implement a disadvantageous strategy early in learning, and this led to poorer task performance. Importantly, the relationship between age and task performance was partially mediated by early strategy use, suggesting that early strategy selection played a role in the lower quality of predictions in older adults.     

Work stress,work–home interference and perceptions of organisational culture amongst insurance employees in Zimbabwe

The objective of the study was to determine the relationship between work stress, work-home interference, and perceptions of organisational culture amongst insurance employees in the Zimbabwean context. Data were collected from a sample of 190 employees (females=46%) who completed the Occupational Stress Inventory-Revised (OSI-R), the Work-Home Interference Questionnaire (SWING), and the Organisational Culture Index (OCI). Data analysis consisted of correlational and standard multiple regression analyses. The results revealed significant positive correlations between the sub-scales Role Overload, Role Insufficiency, Role Ambiguity, Role Boundary, Responsibilities, and Physical Environment of the OSI-R, the sub-scales Positive Work-Home Interference and Negative Work-Home Interference of the SWING, and the sub-scales Bureaucratic, Innovative and Supportive Culture of the OCI. These findings contribute to new knowledge in terms of the work stress experienced by insurance employees who are always under continuous pressure from the industry. Furthermore, it could be used to gain insight to enhance the work-life balance of insurance employees and the effect of organisational culture as perceived by insurance employees.     

Birth Order Position and Prosocial Tendencies

This study investigated the relationship between psychological birth order position and different types and levels of prosocial tendencies. An ex postfacto, between-family research design was used. Data on prosocial tendencies were obtained from 888 college students (females = 80.4%, mean age = 20.94 yrs, SD = 2.83; males = 19.6%, mean age = 21.62 yrs, SD = 2.44). Participants completed a biographical questionnaire as well as the Prosocial Tendencies Measure (Carlo & Randall, 2002). Data were analysed to compare and contrast prosocial tendencies between demographics using parametric ANOVAs, t tests and the Mann-Whitney Test. Significant differences in prosocial tendency scores were only found between middle-borns and last-borns on altruism, with middle-borns scoring significantly higher in prosocial tendencies than last-borns. There is no evidence to suggest that a definitive link between prosocial tendencies and birth order exists in this study.     

Negative Life Events and Mental Ill-Health Among Women: A Prospective Study of the Main, Moderating and Mediating Effect of Sense of Coherence

Antonovsky’s original observations of mental health among women who had survived Nazi concentration camps became the start for the formulation of sense of coherence (SOC) and suggested that the experience of negative life events can be a risk-factor for, whilst SOC can be a protection-factor against, mental ill-health. In the present study, 1,012 women responded to a questionnaire at two points in time that measured mental ill-health, SOC and the experience of negative life events. The results showed that women who had recently experienced negative life events had higher levels of mental ill-health compared to women who had not recently experienced any negative life events. SOC was also found to have a main effect on mental ill-health but neither moderated nor mediated the relation between negative life events and mental ill-health. Suggestions for future research and practical implications are given.     

Body size and body esteem in women: The mediating role of possible self expectancy

We predicted that an expectancy of acquiring a feared fat self and an expectancy of acquiring a hoped-for thin self both mediate the impact of body size on women's body esteem. We also predicted that the mediating pathway through the feared fat self would be stronger than that through the hoped-for thin self. A community sample of 251 women reported their age, height, weight, and completed measures of body esteem and expectancy perceptions of acquiring the feared fat and hoped-for thin selves. Bayesian Structural Equation Modeling (SEM) demonstrated that expectancies about the feared fat self and about the hoped-for thin self mediated the relationship between body size and body esteem. Bayesian SEM also revealed that the pathway through the feared fat self was stronger than that through the hoped-for thin self. Implications for future research and the development of eating pathology are discussed.     

Umgang mit gefährlichen Straftätern in England und Wales

Forensic psychiatric institutions exist in all western European countries. Their organisation depends on a number of factors including the legal framework and societal attitudes towards mentally disordered offenders. This article describes and critically comments on the forensic psychiatric system in England and Wales, its legal framework and approaches to dealing with dangerous offenders. England and Wales have a long forensic psychiatric tradition with the first high security hospital, Broadmoor hospital, having been established in 1863. Evidence-based treatment approaches in forensic hospitals as well as in prisons, training of forensic psychiatrists and research in the field of forensic psychiatry have gained international recognition. However, there are some worrying aspects in the system of forensic psychiatric care and the criminal justice system more generally, in particular the high and still increasing number of prisoners in comparison with other European countries, the low age of criminal responsibility, long sentences, increasing length of stay in forensic care and the increasingly risk averse culture. A number of differences to the German system can be found; one such difference relates to the role of criminal responsibility which is irrelevant for decisions regarding commitment in England and Wales. Only the mental state and need for treatment at the time of trial (or later assessment in prison) determine whether an offender is admitted to psychiatric care or receives a prison sentence. A number of new initiatives have been launched in recent years resulting in an increasing number of individuals being detained in forensic psychiatric and criminal justice institutions, in particular the initiative for the detention and treatment of individuals with so-called dangerous and severe personality disorders, the sexual offenders register and the new sentence of indeterminate imprisonment for public protection. These initiatives have been the subject of a number of complaints to the European Court of Human Rights. Nevertheless, the trend towards a more and more risk averse culture continues.     

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.     

Second language learning in elementary and high school students

Abstract

A cross-sectional approach covering an age range of 10 years was used to compare the developmental changu in picture naming md number naming of 77 high scbool md 74 elementary students who came from Germany to Sweden. For the two different groups of students, length of residcoce in Swedcn was the main independent variable and reaction time on simple naming tasks of pictures and numbers in German and Swedish was the dependent variable. The results provide evidence that elementuy school students achieved a balanced form of bilingualism 2 years earlier than high school students on the picture naming task. Naming two-digit numbers was shown to be a relatively difficult task for elementary school children, as indiated by markedly prolonged response times. Despite this fact, after about 4 years of residence in Sweden, both groups of students reached language ballaced on this task in that they showed identical response times in both languages. The results on the picture naming task were taken as support for the optimal age hypothesis.     

Intracerebroventricular effects of angiotensin II on a step-through passive avoidance task in rats

A wealth of evidence indicates that angiotensin II (Ang II) is involved in learning and memory. However, the precise role of this peptide in these cognitive processes is still controversial, with data indicating either an inhibitory or an enhancing action. The present study was designed to further investigate the effects of intracerebroventricular injections of Ang II (0.5, 1 or 3nmol/5microl) on a step-through passive avoidance task in male adult Wistar rats. When administered pretraining, Ang II did not affect the acquisition of passive avoidance, but markedly improved avoidance performance when given before the retrieval test. The latter effect was observed in retest sessions performed up to 72h after training. Administration of the peptide five minutes after training impaired retention of inhibitory avoidance. Therefore, Ang II may exert opposite effects on passive avoidance memory according to its interference with brain mechanisms leading to the storage or retrieval of this aversively motivated task.     

Electroencephalographic registration of low concentrations of isoamyl acetate

Previous research has demonstrated electroencephalogram (EEG) changes in response to low-odor concentrations, resulting in near-chance detection. Such findings have been taken as evidence for olfaction without awareness. We replicated and extended previous work by examining EEG responses to water-water control, 0.0001, 0. 001, 0.01, and 1 ppm isoamyl acetate (IAA) in water paired with water only. Detection was above chance (>50%) for.001 and above, and alpha decreased only to those concentrations, suggesting that EEG changes corresponded to IAA awareness. However, when correct trial EEGs were compared to incorrect trial EEGs during.001 ppm, right posterior/central alpha decreased during incorrect trials and alpha decreased more globally (including frontal sites) during correct trials. These data may not reflect awareness or unawareness per se. Instead, results are discussed regarding activation of perceptual systems in the posterior region during incorrect trials and the activation of frontal action systems during a subset of correct trials.