Interference in Immediate Spatial Memory: Shifts of Spatial Attention or Central executive Involvement?

Interference in serial spatial memory was investigated in six experiments. Experiment 1 replicated Experiment 2 by Smyth and Scholey (1994) in showing that listening to tones that originated from different directions interfered with spatial memory. Experiment 2 showed, however, that the effect of mere listening was not observed when this was the only interference condition experienced by the subject. In Experiment 3, a binary pitch discrimination task performed on spatially separated tones impaired recall performance to the same extent as did left-right decisions. The same disrupting effect was also observed when the tones were presented from the same direction in the pitch discrimination task (Experiment 4) as well as in a binary loudness discrimination task (Experiment 5). Finally, repeating heard words did not interfere, whereas a pitch discrimination performed on these same words disrupted recall (Experiment 6). It is argued that the disrupting effects reflect not a specifically spatial interference, but a central executive involvement in the rehearsal process in serial spatial memory.     

Muster früher Traumatisierung und die Effekte stationärer Psychotherapie

Early traumatic experiences of neglect, physical and sexual abuse in adult patients undergoing inpatient psychotherapeutic treatment were retrospectively assessed. Associations between these three forms of trauma and with patient gender were analyzed. The effects of early traumatization in general, gender and patterns of specific experiences on the symptom level, level of everyday functioning and treatment outcome were also investigated. A total of 191 patients in a psychosomatic psychotherapy ward of a university hospital were assessed using standardized questionnaires on sociodemographic and clinical variables on admission and at discharge. The type and extent of early traumatization before the age of 18 years were estimated after the initial interview from standardized reports of the therapists. The results indicate that the probability of being exposed to one of the traumatic experiences under study are not independent of each other. Furthermore, female patients were victims of sexual abuse and neglect more often than males. Compared to non-traumatized patients, trauma victims exhibited more psychological symptoms in the symptom checklist 90 revised (SCL-90-R) and a lower level of functioning according to the global assessment of functioning (GAF) but achieved a comparable relative benefit from treatment. Sexual abuse (SCL-90-R and GAF) and neglect (SCL-90-R only) affected the levels of impairment on admission and at discharge in a similar way; however, only weak evidence for differential effects of trauma patterns on therapy outcomes was found. Methodological limitations of the present approach and implications for the design of inpatient psychotherapeutic interventions in adult patients with early traumatic experiences are discussed.     

Applying processing trees in social psychology

Processing tree models offer a powerful research framework by which the contributions of cognitive processes to a task can be separated and quantified. The present article reviews a number of applications of processing tree models in the domain of social psychology in order to illustrate the steps to be taken in developing and validating a given model and applying it to the measurement and comparison of processes across experimental and quasi-experimental conditions. Process dissociation models are discussed as special cases of processing tree models. Crucial assumptions of processing tree models are considered and methods to overcome violations of such assumptions are reviewed. In addition to the application of processing tree models for the analysis of social and cognitive processes, their value is also discussed for the elicitation of truthful responses to socially sensitive questions.     

Bias and regulation of bias in intergroup interactions: Implicit attitudes toward Muslims and interaction quality

Previous research suggests that automatically activated bias manifests itself in behavior that can jeopardize the quality of intergroup interactions. However, regulation of automatic associations has the potential to attenuate their influence on intergroup interaction. To test this possibility, 46 non-Muslim White participants interacted with a Muslim confederate and completed an implicit measure of attitudes toward Muslims. The Quadruple Process model [Sherman, J. W., Gawronski, B., Gonsalkorale, K., Hugenberg, K., Allen, T. J., & Groom, C. J. (2008). The self-regulation of automatic associations and behavioral impulses. Psychological Review, 115, 314-335] was applied to the implicit measure to estimate participants’ strength of negative associations with Muslims and their ability to overcome those negative associations. The confederate’s ratings of how much he liked the participants were predicted by an interaction between automatic negative associations and the ability to overcome them. Specifically, when the strength of participants’ negative associations with Muslims was low, participants’ level of overcoming bias was unrelated to the confederate’s ratings. In contrast, the ability to regulate automatic negative associations predicted greater liking when those associations were strong.     

HMMTree: A computer program for latent-class hierarchical multinomial processing tree models

Latent-class hierarchical multinomial models are an important extension of the widely used family of multinomial processing tree models, in that they allow for testing the parameter homogeneity assumption and provide a framework for modeling parameter heterogeneity. In this article, the computer program HMMTree is introduced as a means of implementing latent-class hierarchical multinomial processing tree models. HMMTree computes parameter estimates, confidence intervals, and goodness-of-fit statistics for such models, as well as the Fisher information, expected category means and variances, and posterior probabilities for class membership. A brief guide to using the program is provided.     

Process components of the Implicit Association Test: a diffusion-model analysis

The authors present a diffusion-model analysis of the Implicit Association Test (IAT). In Study 1, the IAT effect was decomposed into 3 dissociable components: Relative to the compatible phase, (a) ease and speed of information accumulation are lowered in the incompatible phase, (b) more cautious speed-accuracy settings are adopted, and (c) nondecision components of processing require more time. Studies 2 and 3 assessed the nature of interindividual differences in these components. Construct-specific variance in the IAT relating to the construct to be measured (such as implicit attitudes) was concentrated in the compatibility effect on information accumulation (Studies 2 and 3), whereas systematic method variance in the IAT was mapped on differential speed-accuracy settings (Study 3). Implications of these dissociations for process theories of the IAT and for applications are discussed.     

Relevance differently affects the truth,acceptability, and probability evaluations of “and”, “but”, “therefore”, and “if–then”

In this study, we investigate the influence of reason-relation readings of indicative conditionals and “and”/“but”/“therefore” sentences on various cognitive assessments. According to the Frege–Grice tradition, a dissociation is expected. Specifically, differences in the reason-relation reading of these sentences should affect participants’ evaluations of their acceptability but not of their truth value. In two experiments we tested this assumption by introducing a relevance manipulation into the truth-table task as well as in other tasks assessing the participants’ acceptability and probability evaluations. Across the two experiments, a strong dissociation was found. The reason-relation reading of all four sentences strongly affected their probability and acceptability evaluations, but hardly affected their respective truth evaluations. Implications of this result for recent work on indicative conditionals are discussed.     

The regulation of subjective well-being in cancer patients: An analysis of coping effectiveness

Abstract

The hypothesis that individual coping efforts affect subjective well-being in the face of severe chronic disease is examined with questionnaire data from N=332 cancer patients in a one-year longitudinal study. After depicting conceptual and methodological requirements for the analysis of coping effectiveness, the following five coping modes were investigated in the sample: Rumination, search for affiliation, threat minimization, search for information and search for meaning in religion. Results from a series of hierarchical regression analyses yielded findings that questioned the underlying assumption of a general uniform causal direction within coping-adjustment relationships. Threat minimization proved to be the only coping mode that obviously was “effective” in well-being regulation, that is, was revealed to be predictive of well-being changes over time and to be unaffected by prior levels of well-being. It is argued that the problem of causal directionality has to be carefully examined in future studies on coping effectiveness since interindividual differences in coping behaviors might be a consequence rather than the cause of differences in adjustment status.