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.     

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.     

Drive for leanness and health-related behavior within a social/cultural perspective

We examined relationships between drive for leanness and perceived media pressure to change appearance, internalization of an ideal physique, exercise frequency, and dieting. Men and women (N = 353) completed the Drive for Leanness Scale, the Sociocultural Attitudes Toward Appearance Questionnaire-3, the Eating Attitudes Test-26, and a demographic inventory. Drive for leanness was significantly correlated with athletic internalization (.52), pressure to attain an ideal physique (.25), exercise frequency (.36), and dieting (.25). Structural equation modeling revealed a good fitting model (χ² = 2.85, p < .241; CFI = .99; NNFI = .98; RMSEA = .04; SRMR = .02) with internalization predicting drive for leanness, which in turn predicted dieting and exercise. Results reveal social/cultural theory helps enhance the understanding of the drive for leanness and its relationship with health-related behavior.     

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.     

Gestalt grouping effects on tactile information processing: when touching hands override spatial proximity

Using a tactile variant of the negative-priming paradigm, we analyzed the influence of Gestalt grouping on the ability of participants to ignore distracting tactile information. The distance between participants’ hands, to which the target and distractor stimuli were simultaneously delivered, was varied (near/touching hands vs. hands far apart). In addition, the influence of touching hands was controlled, as participants wore gloves and their hands were blocked from vision by a cover. The magnitude of the tactile negative-priming effect was modulated by the interaction between hand separation and whether or not gloves were worn. When the hands were touching, negative priming emerged only while wearing gloves that prevented direct skin-to-skin contact. In contrast, when the separation between the participants’ hands was larger, negative priming emerged only when gloves were not worn. This pattern of results is interpreted in terms of the competing influences of two interacting Gestalt principles—namely, connectedness and proximity—on the processing of tactile distractors.     

Obtaining guilty knowledge in human intelligence interrogations: Comparing accusatorial and information-gathering approaches with a novel experimental paradigm

Substantial research has assessed interrogations seeking to obtain a criminal confession, and consequently much has been learned regarding the potential problems with confession evidence. However, an increasing focus on counter-terrorism, and therefore intelligence interrogations, reveals an obvious gap in the literature. Intelligence interrogations are primarily focused on collecting information from individuals as opposed to a confession linked to an alleged event, and little of the extant psychological literature can speak directly to such a scenario. The current research developed an experimental paradigm to test interrogation approaches in an intelligence-gathering context, providing a method for gathering empirical data on human intelligence collection. In the first implementation of this paradigm, accusatorial and information-gathering interrogation strategies were tested using a procedure high in psychological realism. Results indicate that an information-gathering approach yields more relevant information than an accusatorial approach and leads to more diagnostic impressions by third party observers.     

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.     

Visual masking and RSVP reveal neural competition

A test visual stimulus is harder to recognize when another stimulus is presented in close temporal vicinity; presenting stimuli in close spatial vicinity of a test stimulus reduces its visibility; presenting a stimulus to one eye can render invisible another stimulus presented to the other eye; and perceiving one interpretation of an ambiguous image prevents the simultaneous perception of other visual interpretations. A single, neurophysiological theory, which may be called 'neural competition' might explain all these phenomena: when two alternative neural visual representations co-exist in the brain, they compete against each other.     

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.