Lag-1 sparing in the attentional blink: Benefits and costs of integrating two events into a single episode

When people monitor a visual stream of rapidly presented stimuli for two targets (T1 and T2), they often miss T2 if it falls into a time window of about half a second after T1 onset—the attentional blink. However, if T2 immediately follows T1, performance is often reported being as good as that at long lags—the so-called Lag-1 sparing effect. Two experiments investigated the mechanisms underlying this effect. Experiment 1 showed that, at Lag 1, requiring subjects to correctly report both identity and temporal order of targets produces relatively good performance on T2 but relatively bad performance on T1. Experiment 2 confirmed that subjects often confuse target order at short lags, especially if the two targets are equally easy to discriminate. Results suggest that, if two targets appear in close succession, they compete for attentional resources. If the two competitors are of unequal strength the stronger one is more likely to win and be reported at the expense of the other. If the two are equally strong, however, they will often be integrated into the same attentional episode and thus get both access to attentional resources. But this comes with a cost, as it eliminates information about the targets' temporal order.     

Retrieval during learning facilitates subsequent memory encoding

In multiple-list learning, retrieval during learning has been suggested to improve recall of the single lists by enhancing list discrimination and, at test, reducing interference. Using electrophysiological, oscillatory measures of brain activity, we examined to what extent retrieval during learning facilitates list encoding. Subjects studied 5 lists of items in anticipation of a final cumulative recall test and did either a retrieval or a no-retrieval task between study of the lists. Retrieval was from episodic memory (recall of the previous list), semantic memory (generation of exemplars from an unrelated category), or short-term memory (2-back task). Behaviorally, all 3 forms of retrieval enhanced recall of both previously and subsequently studied lists. Physiologically, the results showed an increase of alpha power (8-14 Hz) from List 1 to List 5 encoding when no retrieval activities were interpolated but no such increase when any of the 3 retrieval activities occurred. Brain-behavior correlations showed that alpha-power dynamics from List 1 to List 5 encoding predicted subsequent recall performance. The results suggest that, without intermittent retrieval, encoding becomes ineffective across lists. In contrast, with intermittent retrieval, there is a reset of the encoding process for each single list that makes encoding of later lists as effective as encoding of early lists.     

Begutachtung von Traumatisierungen

The assessment of trauma related-disorders belongs to the most controversial and medically as well as juridically most broadly discussed fields. Accordingly, the juridical basis and clinical implications are presented and discussed. In doing so, among other things the principles of the causality judgement, the damage-related factors and those damage-independent factors which have to be considered are described. They are discussed in the context of social-juridical and insurance-juridical contexts. Some specific features of the clinical investigation situation are shown.     

Supervision in der psychotherapeutischen Ausbildung in Deutschland

One of the functions of supervision in psychotherapy training is quality assurance. In order to fulfill this function the quality of supervision itself needs to be high and needs to be controlled. Thus in a large survey of psychotherapy training in Germany questions related to the quality of supervision were included in the survey. Answers to those questions from different samples (trainees, alumni, trainers, training institutes, expert organizations) were compiled. Quantitative and qualitative methods were used. Satisfaction and usefulness ratings with individual and group supervision were high to very high. Supervision amount, group size and frequency were rated as adequate. Criticism pertained to the lack of systematic evaluation, insufficient qualification of the supervisors and lacking integration of supervision into the whole training. As supervision is a very important part of psychotherapy training measures for quality assurance and improvement are necessary.     

In the mood for adaptation: how affect regulates conflict-driven control

Cognitive conflict plays an important role in tuning cognitive control to the situation at hand. On the basis of earlier findings demonstrating emotional modulations of conflict processing, we predicted that affective states may adaptively regulate goal-directed behavior that is driven by conflict. We tested this hypothesis by measuring conflict-driven control adaptations following experimental induction of four different mood states that could be differentiated along the dimensions of arousal and pleasure. After mood states were induced, 91 subjects performed a flanker task, which provided a measure of conflict adaptation. As predicted, pleasure level affected conflict adaptation: Less pleasure was associated with more conflict-driven control. Arousal level did not influence conflict adaptation. This study suggests that affect adaptively regulates cognitive control. Implications for future research and psychopathology are discussed.     

Effects of the premenstrual syndrome on facial expressions of sadness

This study examined the relationship between PMS and emotion-related electromyographic facial activity at different phases of the menstrual cycle. Twenty-four women of reproductive age (12 with PMS, 12 controls) participated in two EMG sessions (T1 and T2) in which they were shown photographic images that can elicit various emotions (IAPS stimuli). T1 took place in the follicular phase, T2 in the luteal phase. The activity of the musculus depressor anguli oris ("depressor", expression of sadness) was measured. Depressor activity was compared to activity of musculus orbicularis oculi ("orbicularis"; expression of joy). ANOVA yielded a significant increase of the activity of the depressor at T2 in the PMS group. The PMS group showed more frequent depressor activity during the luteal than the follicular phase. Orbicularis activity did not change from T1 to T2. Conclusions: The PMS group experienced various visual stimuli in a more depressed way during the luteal phase.     

The role of the lived-body in feeling

Feelings not only have a place, they also have a time. Today, one can speak of a multifaceted renaissance of feelings. This concerns philosophy itself, particularly, ethics. Every law-based morality comes up against its limits when morals cease to be only a question of legitimation and begin to be a question of motivation, since motives get no foothold without the feeling of self and feeling of the alien. As it is treated by various social theories and psychoanalysis, the self is not formed through the mere acquisition or change of roles, but rather through a process that is susceptible to crises, a process shaped by affective bonds and separations. Learning, which is the theme of pedagogy, loses its hold whenever it is confronted by disinterest and listlessness. In neurobiology, the increased significance of those zones of the brain that are connected with the realization of feelings makes the brain, accordingly, no mere apparatus that processes data, but a living organ that selects and “evaluates” what is “important.” Finally, cross-cultural comparison shows the extent to which the one-sided preference for understanding and willing, which is the mark of Western rationalism, arises from a typical, not to mention a highly masculine attitude toward the world and life, as many different studies on gender difference stress (In reference to this perspective, see Seethaler, Gefühle und Urteilskraft. Ein Plädoyer für die emotionale Vernunft, 1997). The following reflections provide a historical orientation directed toward a new determination of feelings. This new determination of feelings is phenomenological and takes the pathetic character of experience, nourished by the corporeality of experience as its point of departure.     

A tutorial on kernel methods for categorization

The abilities to learn and to categorize are fundamental for cognitive systems, be it animals or machines, and therefore have attracted attention from engineers and psychologists alike. Modern machine learning methods and psychological models of categorization are remarkably similar, partly because these two fields share a common history in artificial neural networks and reinforcement learning. However, machine learning is now an independent and mature field that has moved beyond psychologically or neurally inspired algorithms towards providing foundations for a theory of learning that is rooted in statistics and functional analysis. Much of this research is potentially interesting for psychological theories of learning and categorization but also hardly accessible for psychologists. Here, we provide a tutorial introduction to a popular class of machine learning tools, called kernel methods. These methods are closely related to perceptrons, radial-basis-function neural networks and exemplar theories of categorization. Recent theoretical advances in machine learning are closely tied to the idea that the similarity of patterns can be encapsulated in a positive definite kernel. Such a positive definite kernel can define a reproducing kernel Hilbert space which allows one to use powerful tools from functional analysis for the analysis of learning algorithms. We give basic explanations of some key concepts—the so-called kernel trick, the representer theorem and regularization—which may open up the possibility that insights from machine learning can feed back into psychology.     

Psychotherapeutenausbildung aus Sicht der Absolventen

Background

A survey was performed to assess the current situation in education and to identify critical issues 10 years after the inception of the psychotherapy act in Germany.

Methods

In August 2008 all non-medical psychotherapists who had graduated since 2002 according the psychotherapy act were invited to take part in the survey and a total of 863 persons participated. The answers from 666 could be evaluated corresponding to a participation rate of 20%.

Results

A total of 57.6% of the graduates had completed a full-time training and approximately 50% of the graduates had completed the training within the allotted time. In the majority of cases evaluation occurred only for the theoretical courses. During the practical work (PT I) 36.8% of the graduates did not receive any salary or remuneration, 82% had their own field of activity and of these 38% treated patients without the presence of qualified tutor.

Conclusions

The training often lasts longer than intended, the financial situation in the PT I is exceptionally critical and in clear contrast to the field of activity in this section of training. Further detailed results will be presented and discussed.