Dynamic factor analysis of nonstationary multivariate time series

A dynamic factor model is proposed for the analysis of multivariate nonstationary time series in the time domain. The nonstationarity in the series is represented by a linear time dependent mean function. This mild form of nonstationarity is often relevant in analyzing socio-economic time series met in practice. Through the use of an extended version of Molenaar's stationary dynamic factor analysis method, the effect of nonstationarity on the latent factor series is incorporated in the dynamic nonstationary factor model (DNFM). It is shown that the estimation of the unknown parameters in this model can be easily carried out by reformulating the DNFM as a covariance structure model and adopting the ML algorithm proposed by Jöreskog. Furthermore, an empirical example is given to demonstrate the usefulness of the proposed DNFM and the analysis.     

Bodily experience between selfhood and otherness

In opposition to traditional forms of dualism and monism, the author holds that our bodily self includes certain aspects of otherness. This is shown concerning the phenomenological issues of intentionality, of self-awareness and of intersubjectivity, by emphasizing the dimension of pathos. We are affected by what happens to us before being able to respond to it by acts or actions. Every sense, myself and others are born out of pathos. The original alienness of our own body, including neurological processes, creates shifting degrees of nearness and remoteness, and allows for pathological deviations such as depersonalisation, paranoia or trauma. Such a phenomenology of body crosses the borderlines of different disciplines.     

Bewältigung des unerfüllten Kinderwunsches

The article reviews current research in relation to two aspects of involuntary childlessness; firstly, the extent to which involuntary childlessness can be considered a critical life-event and secondly, the short-term effects of childlessness on life-satisfaction and well-being. A study is reported in which 68 middle-aged women (45 to 65 years) who are long term childless because of infertility, are investigated. The study focuses on the extent to which unfilled desire for a child has long term effects on well-being and life-satisfaction. The control group comprised 68 women who did not suffer from fertility problems and became pregnant spontaneously. Life-satisfaction and well-being were assessed using the life-satisfaction questionaire (FLZ; Fahrenberg et al. 2000) and the SCL-90-R (Symptome-Checklist, Derogatis, the German version of Franke 1995). The study shows clearly that psychological well-being is significantly lower in childless middle-aged women compared to women of the same mean age, who have a child. No significant differences were found in social well-being and health. The results support the view that unwanted childlessness may become a chronic stressor. Unintentionally childless middle-aged women do not constitute a clinical group whose need for psychotherapy is urgent. However, the development of specific counselling for women who fail to conceive and those who remain childless in the long term is recommended.     

Beitrag der Neurowissenschaften zur forensischen Psychiatrie

Forensic psychiatry is a subspecialty dedicated to the interface between psychiatry and law. It uses paradigms and knowledge from general psychiatry for diagnostics, assessment, therapy and research under consideration of the special requirements of legal aspects and framework conditions; therefore, scientific development in forensic psychiatry is substantially dependent on scientific progress in psychiatry and thus nowadays also in neurosciences. Neurobiological hypotheses on the neuronal foundations of psychiatric diseases have been established, for example the dopamine hypothesis for schizophrenia, in a manner that led to important therapeutic advances in the treatment and long-term quality of life for affected persons. Analogous advances should not be withheld from forensic psychiatric patients, who are doubly affected by the disease and the accompanying limitations in their rights to freedom, which is why research in this field must be driven forwards. Clear advances in knowledge of the neurobiological foundations of forensic psychiatric illnesses have, for example, already been made in the field of pedophilia and psychopathy. Based on studies of investigation populations, such neuroscientific knowledge on the neurobiological principles of forensic psychiatric diseases, however, requires a carefully concerted communication with respect to dissemination in the media as well as in the interpretation of individual cases, for example in court. This is of great importance in order to prevent simplifying misconceptions and to avoid a subsequent loss of trust in the scientific process. Therefore, training of the new generation of forensic psychiatrists in the understanding and communication of scientific methods of modern forensic psychiatric neuroscience is of great importance for the societal impact and further advancement of the discipline.     

The effect of the belief in free market ideology on redressing corporate injustice

Many people in the major Western economies (e.g., United States, UK, and Germany) subscribe to free market ideology (FMI), which claims that institutional oversight of the market is unnecessary for public reaction can force corporations to regulate their own behavior. The question then becomes how people's belief in FMI affects their reactions to corporate transgressions. Given its ingroup‐centered values, we hypothesized that FMI beliefs would bias reactions to corporate transgressions. We report results of a pilot study showing that FMI beliefs are predicted by selfishness, tradition, conformity, and lack of universalism. We then report three experiments, which showed that stronger FMI beliefs predict weaker demands to redress corporate injustices committed by ingroup (but not outgroup) corporations (Studies 1–3), especially when victims of corporate wrongdoings belong to an outgroup (rather than the ingroup; Study 3). The findings inform our conceptual understanding of FMI and give insights about its implications for market justice.     

Perception in action: multiple roles of sensory information in action control

Perceptual processes play a central role in the planning and control of human voluntary action. Indeed, planning an action is a sensorimotor process operating on sensorimotor units, a process that is based on anticipations of perceptual action effects. I discuss how the underlying sensorimotor units emerge, and how they can be employed to tailor action plans to the goals at hand. I also discuss how even a single action can induce sensorimotor binding, how intentionally implemented short-term associations between stimuli and responses become autonomous, how feature overlap between stimulus events and actions makes them compatible, and why action plans are necessarily incomplete.

Interaction of task readiness and automatic retrieval in task switching: Negative priming and competitor priming

When subjects switch between tasks, performance is slower after a task switch than after a task repetition, even when preparation time is long. We report two experiments that support the idea that a large part of these residual task shift costs can be due to stimulus-cued retrieval of previous task episodes. We demonstrate that there are two different factors at work: (1) facilitation of response to the current distractor stimulus, appropriate to the previously relevant, competing task (competitor priming), and (2) impaired processing of previously suppressed responses (negative priming). Negative priming was contingent on the size of the stimulus set, suggesting that distractor suppression comes into effect only if the distractors are highly activated. Importantly, both types of interference interacted with task readiness: Whereas in the nondominant task (picture naming), switch and nonswitch trials were equally affected, the dominant task (word reading) showed priming effects on switch trials only. Thus, the retrieval of previous processing episodes has a selective impact on situations in which task competition is high.     

Detecting and identifying response-compatible stimuli

Previous work indicates that action-control processes influence perceptual processes: The identification probability of a left- or right-pointing arrow is reduced when it appears during the execution of a compatible left-right-key press (Müsseler & Hommel, in press). The present study addresses the question of whether this effect would also be observed in a detection task—that is, with judgments that do not require discriminating between left- and right-pointing arrows. Indeed, we found comparable effects in both the identification task and the detection task. This outcome is interpreted within a commoncoding framework, which holds that stimulus processing and action control operate on the same codes.     

Visual-manual commonality in size judgments

Visual-manual commonality was studied in terms of commonality of process and commonality of achievement. Fifty-four Ss madelarge-small categorical judgments about a set of stimuli presented in counterbalanced order through both the visual modality and the haptic, touch, or kinesthetic modality. Using a linear discriminant function model, analyses of the several visual-manual pairings were made on the basis of intra-S absolute differences in the weighting of the physical dimensions (process) and the degree of category separation (achievement). A correlational analysis revealed the independence of these measures, and analyses of variance revealed greater visual-haptic commonality for weighting systems and similar visual-haptic and visual-touch commonality for category separation. The results were interpreted in terms of similarities and differences in information gathering and processing characteristics.