Incidental picture exposure affects later reading: evidence from the N400

Language comprehenders form a mental representation of the implied shape of objects mentioned in the text. In the present study, the influence of prior visual experience on subsequent reading was assessed. In two separate phases, participants saw a picture of an object and read a text about the object, suggesting the same or a different shape. When the shapes in the two phases mismatched, ERPs during reading showed a larger N400 amplitude than when the shapes matched, suggesting that a picture presented incidentally 15 min earlier affected reading. These results further strengthen the case for the interaction of language and visual experience during language comprehension.     

Time-course analysis of temporal preparation on central processes

Participants usually respond faster to a response signal (RS) when this signal is preceded by a warning stimulus than when it is not. A question of theoretical importance is the locus of this facilitating effect within the information processing stream. Recently, Los and Schut (Cogn Psychol 57:20–55, 2008) suggested that temporal preparation acts on central processes while perception of the RS is under way. The present study provides a stochastic model (central preparation model, CPM) based on this hypothesis and presents three experiments testing this model. To track the complete time-course of temporal preparation, the warning signal could either precede or follow the RS. The data show some systematic deviation from the model’s predictions, questioning CPM’s assumption that temporal preparation acts only on central processes. An alternative mechanism of temporal preparation based on the parallel grains model [Miller and Ulrich (Cogn Psychol 46:101–151, 2003)] is discussed.     

Estimating discrimination performance in two-alternative forced choice tasks: Routines for MATLAB and R

Ulrich and Vorberg (Attention, Perception, & Psychophysics 71: 1219–1227, 2009) introduced a novel approach for estimating discrimination performance in two-alternative forced choice (2AFC) tasks. This approach avoids pitfalls that are inherent when the order of the standard and the comparison is neglected in estimating the difference limen (DL), as in traditional approaches. The present article provides MATLAB and R routines that implement this novel procedure for estimating DLs. These routines also allow to account for processing failures such as lapses or finger errors and can be applied to experimental designs in which the standard and comparison differ only along the task-relevant dimension, as well as to designs in which the stimuli differ in more than one dimension. In addition, Monte Carlo simulations were conducted to check the quality of our routines.     

Trial-by-trial updating of an internal reference in discrimination tasks: Evidence from effects of stimulus order and trial sequence

In psychophysics, participants are often asked to discriminate between a constant standard and a variable comparison. Previous studies have shown that discrimination performance is better when the comparison follows, rather than precedes, the standard. Prominent difference models of psychophysics and decision making cannot easily explain this order effect. However, a simple extension of this model class involving dynamical updating of an internal reference accounts for this order effect. In addition, this Internal Reference Model (IRM) predicts sequential response effects. We examined the predictions of IRM in two duration discrimination experiments. The obtained results are in agreement with the predictions of IRM, suggesting that participants update their internal reference on every trial. Additional simulations show that IRM also accounts for the negative sequential effects observed in single-stimulus paradigms.     

Psychisches Risiko „Großstadtleben“

The material determining factors of mental stress and diseases are comparatively rarely reflected on and analysed in depth in psychotherapy research and by psychotherapists. This article should be seen as a plea to look at these factors in more detail. When this involves the question of the influence of risk factors of city lifestyle conditions on the mental health of its inhabitants, the urban environment“city” is the melting pot for a multitude of individual factors and factor constellations the influence of which must be theoretically conceptualized and empirically collated.     

Task relevance modulates processing of distracting emotional stimuli

Relatively little is known about the integration of people's fear-related dispositions and their expectations about stressful events. This research used information integration theory to examine how participants’ anxiety sensitivity and event expectancy are integrated to determine their social anxiety. Three studies were conducted—two with university students and one with anxiety clinic patients—in which participants were presented with multiple scenarios of a socially embarrassing event, each representing a different degree of event probability, from which subjective expectancies were derived. Independent variables included anxiety sensitivity (low, moderate, high) and event expectancy (low, medium, high, no probability information). Participants were asked to indicate their anxiety (dependent measure) in each expectancy condition in this 3 × 4 mixed, quasi-experimental design. The results of all three studies strongly suggest that anxiety sensitivity and event expectancy are integrated additively to produce social anxiety. Additional results and their implications for the treatment of anxiety-related disorders are also discussed.     

Interpersonal psychotherapy for eating disorders with co-morbid depression: A pilot study

Objective: Patients with eating disorders (ED) often suffer from co-morbid depression, which may complicate the ED treatment. Previous studies have found that ED interventions seem to have limited capacity to reduce depressive symptoms. Several studies of interpersonal psychotherapy (IPT), have found that when patients have been treated for depression, co-morbid symptoms have diminished. As depression and EDs are commonly co-occurring conditions, this pilot study aimed to examine the effect of an IPT treatment for these conditions, with the focus on the depressive symptoms.

Method: In this multi-centre study, 16 patients with EDs and co-occurring major depression received 16 weeks of depression-focused IPT.

Results: Significant improvements with substantial effect sizes were found for both depression (d = 1.48) and ED (d = .93). Symptom reduction in the two syndromes were strongly correlated (r = .625, p = .004). Patients with a restrictive ED did not improve on either depression or ED symptoms.

Conclusion: These findings point to the usefulness of IPT for concurrent depression and ED with a bingeing/purging symptomatology. Working with negative affect and problem-solving related to current interpersonal problems may alleviate general psychological distress among these patients.     

Exploring the validity of scores from the Rosenberg Self-Esteem Scale (RSES) in Burundi: A multi-strategy approach

The present study aimed to validate the Rosenberg Self-Esteem Scale (RSES) in Burundi, through a multi-strategy approach used in cross-cultural studies. Respondents were 906 health workers (men = 56%; caregivers 60%). They responded to a bilingual version of RSES. We utilised Confirmatory Factorial Analysis (CFA) with structural equation modelling and a back translation test to explore the structure of the RSES and the reliability of scores from the scale. Data from an independent sample were analysed for the reliability of scores assessment. CFA results suggested that the global RSES factor was likely contaminated by a method-effect; mainly associated with negatively worded items. Internal consistencies and a back-translation test demonstrated that the negatively worded items were unsuitable in this context. The independent sample study confirmed poor reliability and internal consistency of scores for both alternative language versions of the RSES. Our data suggested that an overall cultural effect, rather than a merely specific language effect, may undermine the cross-cultural transportability of the Western scale.     

Suspicious Minds at Risk? The Role of Meaning in Processing War and Peacekeeping Experiences

The purpose of this study was to examine meaning as a mediator between perceived threat and posttraumatic stress responses among a sample of 1,561 veterans who participated in war or peacekeeping operations. Data were collected by questionnaire. Path analysis was performed to assess the expected relationships between the observed variables. Meaning in terms of distrust and personal benefits partially mediated the relation between perceived threat and posttraumatic stress responses. Distrustful beliefs about others and the world were strongly associated with perceived threat, as well as intrusive and avoidant thoughts. Creating meaning in terms of a positive worldview appears to be an important mission after military deployment.     

Fusion prevents the redundant signals effect: evidence from stereoscopically presented stimuli

In a simple reaction time (RT) experiment, visual stimuli were stereoscopically presented either to one eye (single stimulation) or to both eyes (redundant stimulation), with brightness matched for single and redundant stimulations. Redundant stimulation resulted in two separate percepts when noncorresponding retinal areas were stimulated, whereas it resulted in a single fused percept when corresponding areas were stimulated. With stimulation of noncorresponding areas, mean RT was shorter to redundant than to single stimulation, replicating the redundant signals effect (RSE) commonly found with visual stimuli. With stimulation of corresponding areas, however, no RSE was observed. This suggests that the RSE is driven by the number of percepts rather than by the number of stimulated receptors or sensory organs. These results are consistent with previous findings in the auditory modality and have implications for models of the RSE.