Factors Related to the Long-Term Course of PTSD in Older Ex–Prisoners of War

This study examined relationships between socioenvironmental factors occurring in later-life and current and changing PTSD symptom levels in a sample of 177 community-dwelling World War II and Korean era ex–prisoners of war. Factors examined included negative life events, negative health events, social support, and death acceptance. PTSD was assessed at Time 1. PTSD and the later-life factors were then assessed 4 years later (Time 2). Cross-sectional analysis examined the relationship of the later-life factors to current PTSD symptomatology. Longitudinal analysis examined their relationship to changing PTSD symptomatology over the 4-year interval. Negative health changes, social support, and death acceptance were significantly related to current and changing PTSD symptomatology, but negative life events were not. The authors conclude that health and psychosocial factors that may occur in later-life can be related to PTSD symptom levels even many decades after a traumatic experience.     

Behavioral analysis of NR2C knockout mouse reveals deficit in acquisition of conditioned fear and working memory

N-methyl-D-aspartate (NMDA) receptors play an important role in excitatory neurotransmission and mediate synaptic plasticity associated with learning and memory. NMDA receptors are composed of two NR1 and two NR2 subunits and the identity of the NR2 subunit confers unique electrophysiologic and pharmacologic properties to the receptor. The precise role of NR2C-containing receptors in vivo is poorly understood. We have performed a battery of behavioral tests on NR2C knockout/nβ-galactosidase knock-in mice and found no difference in spontaneous activity, basal anxiety, forced-swim immobility, novel object recognition, pain sensitivity and reference memory in comparison to wildtype counterparts. However, NR2C knockout mice were found to exhibit deficits in fear acquisition and working memory compared to wildtype mice. Deficit in fear acquisition correlated with lack of fear conditioning-induced plasticity at the thalamo-amygdala synapse. These findings suggest a unique role of NR2C-containing receptors in associative and executive learning representing a novel therapeutic target for deficits in cognition.     

The influence of string length and repetition on chunking of digit strings

This study examined the effects of string length and repetitions on number processing with a data entry task. Participants read and entered strings of between three and eight digits and then typed them on the keypad of a computer. Chunking effects were found for all string lengths, with chunk sizes of as small as two digits. Chunk boundary placement varied depending on the length of a digit string, and chunking was avoided at positions between digit repetitions, even when those positions were otherwise common chunk boundaries. Digit repetitions significantly reduced the study time required to process a string prior to its entry. These results are interpreted as showing that flexible chunking strategies and the presence of repetitions are used to facilitate number processing.Means with an asterisk correspond to repeated digits     

Creativity insights: The phenomenon of calculated ignorance and credibility

ABSTRACT: When a problem is abandoned, a solution may subsequently and unexpectedly emerge. The intervening period, known as incubation, has sometimes been ascribed to opportunity assimilation. According to this theory, impasses to a problem create failure indexes, which ensure that random clues in the environment are detected and utilized. To assess the notion that failure indexes enhance clue utilization, 50 participants undertook a series of word problems. After this initial attempt, the participants were deceived and told that half the unsolved problems were insoluble. A series of general knowledge questions was then presented; the answers to the original problems were surreptitiously incorporated within this questionnaire. The instruction that certain problems were insoluble was retracted, and the items that had yet to be solved were reinstated. High-ability problem solvers were less likely to correctly answer the items that were designated as insoluble. Low-ability problem solvers, however, generated the reverse pattern. A model that links failure indexes to the forgetting of suboptimal strategies was formulated to accommodate these findings.     

'Most Dear to All the Muses': Mapping Tagorean Networks of Enterprise--A Study in Creative Complexity

ABSTRACT: The network of enterprise concept was applied to an "uncontroversially creative" subject from a non-Western culture-Rabindranath Tagore, the 1913 Nobel laureate in literature. The approach followed here is developmental, describing and analyzing the evolution of aspects of the creative work. It reflects historical reconstruction, examining not only the creative products but other phenomenological materials as well; but care is taken to remain sensitive to the multiple contexts in which the individual operated, including work tasks and enterprises; family and private worlds; professional milieus; and the sociohistorical period. The study explains the challenges in mapping Tagore's network of enterprises and analyzes his overall purpose in undertaking creative work. The analysis of Tagore's literary enterprises provided the basis for defining his uniqueness, along with the density, longevity, cyclicity, and branching nature of his enterprises. Furthermore, the realm of drawing and painting provided confirmation of some of the findings obtained from the study of the network of his literary enterprises. -     

Book reviews

A glance toward a neglected field: Creativity and affect

Russ, Sandra W. (1993). Affect and Creativity: The Role of Affect and Play in the Creative Process. Hillsdale, NJ: Erlbaum (136 pp.). ISBN 0–8058–0986–4.

More ways than one: Fostering creativity

Cropley, Arthur J. (1992). More Ways Than One: Fostering Creativity. Norwood, NJ: Ablex (VIII + 134 pp.). ISBN 0–89391–789–3.

Whitehead revisited: A rediscovered founding father of Creativity Studies

Rapp, F. &; Wiehl, R. (1990). Whitehead's Metaphysics of Creativity. Albany, NY: SUNY Press (X + 223 pp.). ISBN 0–79140202–9.     

Evidence for blatant dehumanization of mental illness and its relation to stigma

ABSTRACT

People with mental illness face stigma, and due to their low social status, they may also face blatant dehumanization that denies their status as fully evolved human beings. In the current research, three studies documented the existence of blatant dehumanization of mental illness. Study 1 (N = 112) showed that participants rated people with mental illness in general as being significantly less human than other dehumanized social groups such as Mexican immigrants and Muslims. Study 2 (N = 158) showed that dehumanization occurs for specific mental disorders but that the level of dehumanization varies widely among disorders. Study 3 (N = 223) documented significant correlations between dehumanization of mental illness and standard measures of stigma such as fear, pity, and social distance. Overall, the results establish the relevance of blatant dehumanization to mental illness stigma and suggest new directions for understanding stigma.     

A systematic review of studies evaluating diffusion and dissemination of selected cancer control interventions.

With this review, the authors sought to determine what strategies have been evaluated (including the outcomes assessed) to disseminate cancer control interventions that promote the uptake of behavior change. Five topic areas along the cancer care continuum (smoking cessation, healthy diet, mammography, cervical cancer screening, and control of cancer pain) were selected to be representative. A systematic review was conducted of primary studies evaluating dissemination of a cancer control intervention. Thirty-one studies were identified that evaluated dissemination strategies in the 5 topic areas. No strong evidence currently exists to recommend any one dissemination strategy as effective in promoting the uptake of cancer control interventions. The authors conclude that there is a strong need for more research into dissemination of cancer control interventions. Future research should consider methodological issues such as the most appropriate study design and outcomes to be evaluated.     

Staying and Returning dynamics of young children's attention

In this paper, we decompose selective sustained attending behavior into components of continuous attention maintenance and attentional transitions and study how each of these components develops in young children. Our results in two experiments suggest that changes in children's ability to return attention to a target locus after distraction (“Returning”) play a crucial role in the development of selective sustained attention between the ages of 3.5–6 years, perhaps to a greater extent than changes in the ability to continuously maintain attention on the target (“Staying”). We further distinguish Returning from the behavior of transitioning attention away from task (i.e., becoming distracted) and investigate the relative contributions of bottom-up and top-down factors on these different types of attentional transitions. Overall, these results (a) suggest the importance of understanding the cognitive process of transitioning attention for understanding selective sustained attention and its development, (b) provide an empirical paradigm within which to study this process, and (c) begin to characterize basic features of this process, namely its development and its relative dependence on top-down and bottom-up influences on attention.

Research Highlights

• Young children exhibited an endogenously ability, Returning, to preferentially transition attention to task-relevant information over task-irrelevant information.
• Selective sustained attention and its development were decomposed into Returning and Staying, or task-selective attention maintenance, using novel eye-tracking-based measures.
• Returning improved between the ages of 3.5–6 years, to a greater extent than Staying.
• Improvements in Returning supported improvements in selective sustained attention between these ages.