Detecting malingerers by means of response-sequence analysis

The feigning of sensory loss (malingering) poses a challenge for psychophysicists. To uncover malingerers by means of psychophysical testing, we combined measures of response-sequence randomness with the maximum-likelihood adaptive-staircase procedure used to measure sensory detection thresholds. The two-alternative, forced-choice maximum-likelihood adaptive-staircase procedure calculates an estimate of the threshold after each trial and also recommends the stimulus concentration for the next trial. Olfactory detection thresholds for butyl alcohol were measured in 7 normals, 6 anosmics, and 6 malingerers. Each participant was tested for 20 trials. A discriminant analysis, using threshold concentration and probability of being correct over the 20 trials, could correctly classify only 68% of the malingerers and anosmics. Correct classification of anosmics and malingerers rose to 100% when statistical measures of randomness in the response sequences were included in the discriminant analysis. We conclude that the maximum-likelihood adaptive-staircase procedure, combined with response-sequence analysis, is a powerful addition to the arsenal of techniques for detecting malingerers in the evaluation of sensory ability.     

Clarifying the Placement of Obsessive-Compulsive Disorder in the Empirical Structure of Psychopathology

Recent work on the empirical structure of psychopathology has aimed to address some limitations that can arise from traditional categorical classification approaches. This research has focused on modeling patterns of co-occurrence among traditional diagnoses, uncovering a variety of well-validated dimensions (or spectra) of psychopathology, spanning common and uncommon mental disorders. A model integrating these empirically derived spectra (the Hierarchical Taxonomy of Psychopathology; HiTOP) has been proposed. However, the placement of obsessive-compulsive disorder (OCD) within this model remains unclear, as studies have variably found OCD to fit best as part of the Fear, Distress or Thought Disorder spectra. One reason for this may be the heterogeneity of symptoms experienced by individuals with OCD, which is lost when analysing categorical diagnoses. For example, different symptom clusters within OCD—such as washing and contamination versus obsessions and checking—may be differentially associated with different spectra in the HiTOP model. The aim of this study was to test this hypothesis. Data were collected in an anonymous online survey from community participants (n?=?609), largely with elevated symptoms of mental illness, and analyzed in a factor analytic framework treating OCD as a unitary construct and as four separate symptom clusters. The results indicated that OCD and its constituent symptom clusters had significant loadings of varying strength on the Fear and Thought Disorder spectra. These findings suggest that OCD may be best characterized as cross-loading on both the Fear and Thought Disorder spectra, and highlight the importance of accounting for diagnostic heterogeneity in future research.

     

The role of ethnic origin and situational information in teachers’ reactions to social exclusion among students

Social Psychology of Education - The current study investigated pre- and in-service teachers' reactions to interethnic exclusion in Germany. Using hypothetical scenarios, we examined a sample...     

Learning Behavioral Repertoires with Different Consequences Hinders the Interconnection of These Repertoires in Pigeons in the Box Displacement Test

The Psychological Record - The interconnection of repertoires is a behavioral process related to problem solving and creativity. Experiments on this topic have mostly used a single reinforcer type...     

Semantic alignment across whole-number arithmetic and rational numbers: evidence from a Russian perspective

ABSTRACT

Solutions to word problems are moderated by the semantic alignment of real-world relations with mathematical operations. Categorical relations between entities (tulips, roses) are aligned with addition, whereas certain functional relations between entities (tulips, vases) are aligned with division. Similarly, discreteness vs. continuity of quantities (marbles, water) is aligned with different formats for rational numbers (fractions and decimals, respectively). These alignments have been found both in textbooks and in the performance of college students in the USA and in South Korea. The current study examined evidence for alignments in Russia. Textbook analyses revealed semantic alignments for arithmetic word problems, but not for rational numbers. Nonetheless, Russian college students showed semantic alignments both for arithmetic operations and for rational numbers. Since Russian students exhibit semantic alignments for rational numbers in the absence of exposure to examples in school, such alignments likely reflect intuitive understanding of mathematical representations of real-world situations.     

Mothers’ Mental State Talk and Preschool Children’s Social-Behavioral Functioning: A Multidimensional Account

This study aimed to investigate the multidimensional nature of maternal mental state talk with respect to children’s social-behavioral functioning in a low-income urban preschool sample. Maternal speech data were collected as mothers narrated a wordless picture book depicting a diverse set of mental states to their children (n = 130, 2–4 year olds). Dimensions of maternal mental state talk (i.e., type, direction, causality) were examined with the Coding System for Mental State Talk in Narratives. Approximately half of the sample consisted of higher-risk children who were identified as in need of clinical services by on-site clinicians. Results indicated that mothers’ diversity and causality of mental state talk, their acknowledgement of characters’ negative emotions, and talk about children’s cognitions and their own mental states were associated with children’s socially adaptive behaviors. On the other hand, mothers’ tendency to focus on children’s perceptions during the story-telling task (e.g., “see that?,” “look!”) was linked with lower social competence and internalizing problems. Mothers in the clinical sample used a significantly lower proportion of emotion words compared to mothers in the nonclinical sample. Results suggest that a picture book reading task might provide a cost-effective method for assessing and possibly modifying maternal mental state talk.     

“My Life Purpose Is…”: Assessment of Youth Purpose in Context

In the introduction to this special issue on youth purpose, the authors discuss the challenges in assessing purpose in adolescents; purpose is a concept that has more often been studied in adults but not in youth. First, theauthors discuss how purpose has been defined in the literature. The authors then situate purpose in the context of a host of related constructs, such as intentional self-regulation, future orientation, goal setting, and identity. Additionally, the authors discuss the importance of accurately measuring youth purpose, as well as in what contexts the assessment of purpose is useful, such as for positive youth development researchers, as well as practitioners and evaluators of youth development programs.     

Strukturniveau,Abwehr und Merkmale von Träumen

Attempts were made early on to associate certain human characteristics with dreams. The psychoanalytical notion of structure encompasses a fully differentiated construct, which in particular is characterized by basic mental capabilities. The structural level of a person derived from this reflects their ability for communicative exchange and dealing with themselves as well as with social partners.Within the framework of the project “Affectivity, relationship and mental disorder” operationalized psychodynamic diagnostic (OPD) interviews were carried out, from which the reports of dreams were evaluated for this investigation using the dream generation model of Moser and von Zeppelin. The aim was to investigate associations between features of dreams and the structural level. A total of four different indicators of structure were investigated, e.g. number of personality disorders, OPD-2 structural level, inventory of personality organization (IPO) and the defence maturity quotient, with reference to the association with dream characteristics according to Moser and von Zeppelin.In this investigation only a few associations between dream characteristics and structural level could be identified. The clearest was the association between the degree of maturity of defence and the dream characteristics. Dreams from persons with a more mature defence appeared more complex and livelier. Dreams from persons with a good structural integration according to OPD-2 are also characterized by more “animation” than dreams from less structured persons. The dreams from persons with a moderate structural level do not show any significant differences to those with low structural integration.The results are first and foremost critically discussed with reference to the methods.     

Gender differences in salivary alpha-amylase and attentional bias towards negative facial expressions following acute stress induction

This study investigated gender differences in two key processes involved in anxiety, arousal and attentional bias towards threat. Arousal was assessed using salivary alpha-amylase (sAA), a biomarker of noradrenergic arousal and attention bias using a dot-probe task. Twenty-nine women and 27 men completed the dot-probe task and provided saliva samples before and after a stress induction [cold pressor stress (CPS) test]. Women displayed a significant increase in arousal (sAA) following the stressor compared to men, who displayed a significant reduction in arousal. Reaction time data revealed a significant avoidance of threat in women at baseline, but a significant change to an attention bias towards threat following the stressor. Men did not significantly respond to the stressor in terms of attentional bias. These findings suggest that women are more reactive to a stressor than men, and display an initial avoidance response to threat, but an attentional bias towards threat following stress.