A hierarchical latent stochastic differential equation model for affective dynamics

In this article a continuous-time stochastic model (the Ornstein-Uhlenbeck process) is presented to model the perpetually altering states of the core affect, which is a 2-dimensional concept underlying all our affective experiences. The process model that we propose can account for the temporal changes in core affect on the latent level. The key parameters of the model are the average position (also called home base), the variances and covariances of the process, and the regulatory mechanisms that keep the process in the vicinity of the average position. To account for individual differences, the model is extended hierarchically. A particularly novel contribution is that in principle all parameters of the stochastic process (not only the mean but also its variance and the regulatory parameters) are allowed to differ between individuals. In this way, the aim is to understand the affective dynamics of single individuals and at the same time investigate how these individuals differ from one another. The final model is a continuous-time state-space model for repeated measurement data taken at possibly irregular time points. Both time-invariant and time-varying covariates can be included to investigate sources of individual differences. As an illustration, the model is applied to a diary study measuring core affect repeatedly for several individuals (thereby generating intensive longitudinal data).     

Impact of instruction on the acquisition of sequence knowledge in a sensorimotor task

We examined whether and to what extent a sequence of finger movements can be learned and transferred to the untrained hand according to the muscle homology depending on the relative salience of response locations and effectors. Participants performed a discrete sequence production task, in which they were asked to learn a sequence of either key locations or of finger movements. Each training block was followed by a transfer block in which responding with the opposite hand was required. Before the last transfer block participants received an unexpected instruction. They had to reproduce the sequence of key locations instead of the sequence of finger movements and conversely, the sequence of finger movements instead of the sequence of key locations. The results do not support the existence of a sequence representation for the order of finger movements irrespective of the hand used.     

Complex problem solving — More than reasoning?

This study investigates the internal structure and construct validity of Complex Problem Solving (CPS), which is measured by a Multiple-Item-Approach. It is tested, if (a) three facets of CPS - rule identification (adequateness of strategies), rule knowledge (generated knowledge) and rule application (ability to control a system) - can be empirically distinguished, how (b) reasoning is related to these CPS-facets and if (c) CPS shows incremental validity in predicting school grade point average (GPA) beyond reasoning. N = 222 university students completed MicroDYN, a computer-based CPS test and Ravens Advanced Progressive Matrices. Analysis including structural equation models showed that a 2-dimensionsal model of CPS including rule knowledge and rule application fitted the data best. Furthermore, reasoning predicted performance in rule application only indirectly through its influence on rule knowledge indicating that learning during system exploration is a prerequisite for controlling a system successfully. Finally, CPS explained variance in GPA even beyond reasoning, showing incremental validity of CPS. Thus, CPS measures important aspects of academic performance not assessed by reasoning and should be considered when predicting real life criteria such as GPA.     

The Severe Sexual Sadism Scale: cross-validation and scale properties

The Severe Sexual Sadism Scale (SSSS) is a screening device for the file-based assessment of forensically relevant sexual sadism. The SSSS consists of 11 dichotomous (yes/no) items that code behavioral indicators of severe sexual sadism within sexual offenses. Based on an Austrian sample of 105 sexual offenders, the present study replicated the 1-dimensional scale structure of the SSSS, as evidenced by confirmatory factor analysis. More specifically, the scale was commensurate with the 1-parameter logistic test model (Rasch model). Reliability was estimated to be good. Criterion validity for the clinical diagnosis of sexual sadism was good. With a cutoff value of 7 points, sensitivity and specificity were estimated at 56% and 90%, respectively.     

Stimulus-dependent modulation of perceptual and motor learning in a serial reaction time task

In two experiments, we investigated the impact of spatial attributes on the representation acquired during a serial reaction time task. Two sequences were used, in which structural regularities occurred either in the horizontal or in the vertical locations of successive stimuli. After training with the dominant hand, participants were required to respond with the non-dominant hand to either the original sequence or to a mirror-ordered version of the original sequence that required finger movements homologous to those used during training. We observed that a difference in reaction times between the two transfer conditions was smaller in the vertical sequence than in the horizontal sequence. This pattern of results was independent of whether three fingers (Experiment 1) were used or only one finger (Experiment 2) was used for responding. This result suggests that perceptual and motor learning mechanisms may be weighted differently depending on the context in which the stimulus is presented.     

Affect Intensity Contributes to Perfectionistic Self-presentation in Adolescents Beyond Perfectionism

Perfectionistic self-presentation in adolescents is associated with psychological maladjustment and distress. Yet, no study so far has investigated what personality characteristics contribute to perfectionistic self-presentation in adolescence. Using a cross-sectional correlational design with 119 adolescents aged 11–16 years, this study investigated how perfectionism (self-oriented and socially prescribed perfectionism) and affect intensity (positive affectivity, negative intensity, and negative reactivity) predicted individual differences in three modes of perfectionistic self-presentation: perfectionistic self-promotion, nondisplay of imperfection, and nondisclosure of imperfection. Results showed a unique prediction pattern for all three modes of perfectionistic self-presentation. Moreover, affect intensity contributed to perfectionistic self-presentation beyond perfectionism in two of the three modes. Perfectionistic self-promotion was predicted by high self-oriented perfectionism, high socially prescribed perfectionism, high positive affectivity, and low negative reactivity. In contrast, nondisplay of imperfection was predicted by high self-oriented perfectionism, high negative reactivity, and low positive affectivity. Nondisclosure of perfectionism was predicted by high socially prescribed perfectionism only. The findings suggest that affect intensity is a personality characteristic contributing to perfectionistic self-presentation in adolescence beyond perfectionism.     

Why ‘punk’? Religion,anarchism and feminism in Pussy Riot’s Punk Prayer

Pussy Riot became world famous after their Punk Prayer in the Cathedral of Christ the Saviour in Moscow. This paper looks at the religious and political statements of some Pussy Riot members against the background of their Russian context and explains why the politically radical left-wing, anarchist and feminist group used the form of a punk prayer to express protest. Elaborating the connection of punk, religion and politics, I argue that punk is a sub-culturally established medium to express leftist, anarchist and feminist political convictions and to offend the religious and political hierarchy, especially when performed in the country’s most prominent cathedral; and also that the religiosity of at least some of the Pussy Riot members is not an obstacle to using a punk performance as their form to express protest; by contrast, punk is an adequate medium for ‘liminoid’ anti-authoritarian forms of religion like that of Pussy Riot member Nadezhda Tolokonnikova. In Russia, a punk prayer is not only a way for young anarchistically orientated feminists to celebrate their lifestyle, but also one of the very few ways to get attention for their concerns.     

Comparisons in research and reasoning: Toward an integrative theory of social induction

Strong scientific theories give coherence to a body of research findings, make precise predictions about key phenomena, and guide the search for new discoveries. In social psychology, some contemporary theories fall short of this ideal. Mini-theories are prevalent (cf. Van Lange, Higgins, & Kruglanski, 2011), many predictions are merely directional (like this one!) and theorizing post-hoc. Guided by experimental reasoning, many researchers emphasize—and reify—empirical differences. Taking the experimental method as an epistemological gold standard, they regard comparative thinking as a criterion of rational thinking. Using examples from social judgment and decision making, we show how comparative reasoning can constrain theoretical development and bias assessments of human rationality. To encourage movement toward stronger theory, we describe a model of inductive reasoning in social contexts.