Are delusional contents replayed during dreams?

The relationship between dream content and waking life experiences remains difficult to decipher. However, some neurobiological findings suggest that dreaming can, at least in part, be considered epiphenomenal to ongoing memory consolidation processes in sleep. Both abnormalities in sleep architecture and impairment in memory consolidation mechanisms are thought to be involved in the development of psychosis. The objective of this study was to assess the continuity between delusional contents and dreams in acutely psychotic patients. Ten patients with a single fixed and recurring delusional content were asked to report their dreams during an acute psychotic break. Sixteen judges with four different levels of acquaintance to the specific content of the patients’ delusions were asked to group the dreams, expecting that fragments of the delusional thought would guide the task. A mathematical index (f, t) was developed in order to compare correct groupings between the four groups of judges. Most judges grouped the dreams slightly above chance level and no relevant differences could be found between the four groups [F(3, 12) = 1.297; p = n.s.]. Scoring of dreams for specific delusional themes suggested a continuity in terms of dream and waking mentation for two contents (Grandiosity and Religion). These findings seem to suggest that at least some delusional contents recur within patients’ dreams. Future studies will need to determine whether such continuity reflects ongoing consolidation processes that are relevant to current theories of delusion formation and stabilization.     

AIDS Group Psychotherapy

Abstract

Clinical data are presented from a day spent at a New Jersey high school severely impacted by the World Trade Center disaster. Dissociation, a sense of numbness, anger, and guilt about feelings induced by the tragedy are all common dynamics in adolescents responding to trauma. The developmental issues that adolescents are confronting are described and discussed in terms of the challenges they present to the healing process. An argument is made that using groups to aid in the long recovery process with our young people should be a top public health priority.     

Investigating the Role of Instructional Focus in Incidental Pattern Learning

The authors used a novel dual-component training procedure that combined a serial reaction time task and an artificial grammar learning task to investigate the role of instructional focus in incidental pattern learning. In Experiment 1, participants either memorized letter strings as a primary task and reacted to the stimuli locations as a secondary task or vice versa. In Experiment 2, participants were given the same dual-component stimuli but performed only one of the two training tasks. Instructional focus affected the amount of learning and the likelihood of acquiring explicit knowledge of the underlying pattern. However, the effect of instructional focus varied for the different types of stimuli. These results are discussed in terms of the role of focused attention in incidental learning.     

Inter-individual variability of forces and modular muscle coordination in cycling: A study on untrained subjects

The aim of this study was to investigate the muscle coordination underlying pedaling in untrained subjects by using the muscle synergies paradigm, and to connect it with the inter-individual variability of EMG patterns and applied forces. Nine subjects performed a pedaling exercise on a cycle-simulator. Applied forces were recorded by means of instrumented pedals able to measure two force components. EMG signals were recorded from eight muscles of the dominant leg, and Nonnegative Matrix Factorization was applied to extract muscle synergy vectors W and time-varying activation coefficients H. Inter-individual variability was assessed for EMG patterns, force profiles, and H. Four modules were sufficient to reconstruct the muscle activation repertoire for all the subjects (variance accounted for >90% for each muscle). These modules were found to be highly similar between subjects in terms of W (mean r = .89), while most of the variability in force profiles and EMG patterns was reflected, in the muscle synergy structure, in the variability of H. These four modules have a functional interpretation when related to force distribution along the pedaling cycle, and the structure of W is shared with that present in human walking, suggesting the existence of a modular motor control in humans.     

Objective age of acquisition norms for a set of 286 words in Russian: Relationships with other psycholinguistic variables

Normative data on the objective age of acquisition (AoA) for 286 Russian words are presented in this article. In addition, correlations between the objective AoA and subjective ratings, name agreement, picture name agreement, imageability, familiarity, word frequency, and word length are provided, as are correlations between the objective AoA and two measures of exemplar dominance (exemplar generation frequency and the number of times an exemplar was named first). The correlations between the aforementioned variables are generally consistent with the correlations reported in other normative studies. The objective AoA data are highly correlated with the subjective AoA ratings, whereas the correlations between the objective AoA and other psycholinguistic variables are moderate. The correlations between the objective AoA of Russian words and similar data for other languages are moderately high. The complete word norms may be downloaded from supplementary material.     

Experimentally testing Taylor's stress,coping and adaptation framework

Abstract

Taylor (1995) constructed a comprehensive framework of stress and adaptation, which considers internal and external resources/impediments as moderators, based on previous studies and models. However, most past research used correlation designs and has not taken into account all of the framework's components within one study. This study tested the effects of the event (minor, major), primary appraisal (benign, severe), coping (problem-focused coping (PFC) versus emotion-focused coping), external resources (with/without social support), and internal impediments (hostility), on estimated distress (dependent variable) in written imagined stressful daily scenarios. All components except hostility were experimentally manipulated within subjects in the scenarios. The scenarios were rated by 281 Dutch students. The variables event, appraisal, and social support significantly and independently affected estimated distress. Event and appraisal synergistically interacted in relation to estimated distress. Finally, appraisal interacted with coping such that the distress-reducing effects of PFC occurred only in benign events, while coping did not affect estimated distress in severely appraised events. This study experimentally tested most components of Taylor's framework, and showed that events, appraisal, and social resources were independent determinants of estimated distress, and that appraisal interacts in a complex manner with the event and with coping.     

Psychoeducational Interventions with Pediatric Cancer Patients: Part II. Effects of Information and Skills Training on Health-Related Outcomes

In Part I of this paper, we described a model that was used as a framework for reviewing studies of psychoeducational interventions intended to influence illness- and treatment-related behaviors and attitudes in pediatric cancer patients. In Part II, we distinguish between interventions that attempt to influence patients' behaviors just by providing information and interventions that specifically teach skills related to the behaviors they are trying to change. Many types of psychoeducational interventions appear to be effective and those that are training-based generally appear more effective than those that are information-based. Training-based interventions may face a barrier to wide adoption because they are resource-costly, but the development of digital-based training interventions may potentially overcome this barrier.