Mechanisms of Quality of Life and Social Support in Inflammatory Bowel Disease

Cognitive and social factors are essential considerations in inflammatory bowel disease (IBD) patient management, but existing research is limited. This study aims to expand the IBD literature by examining the relationship between social supports and QoL, while examining mechanisms in these relationships. Consenting patients attending an IBD outpatient clinic were provided a survey package (N = 164). Regressions evaluated predictors of IBD-QoL, and catastrophizing and optimism were examined as mediators between social support and IBD-QoL. Diminished IBD-QoL was predicted by younger age, greater negative spousal responses, and less perceived spousal support. Mediation models showed helplessness catastrophizing to be the lone mediator, acting as a mechanism between both negative spousal responses and perceived spousal support with IBD-QoL. Social interaction variables are associated with IBD-QoL, but patients’ experience of helplessness acts to reduce their ability to benefit from social support. Patient care should consider supportive social and cognitive factors to improve IBD-QoL.     

What is an extinction burst?: A case study in the analysis of transitional behavior

Among the tactics of experimental science discussed by Sidman (1960) were those used to study transitional behavior. Drawing from his insights, this review considers an often cited but infrequently analyzed aspect of the transition from reinforcement to extinction: the extinction burst. In particular, the review seeks to answer the question posed in its title. The generic definition of an extinction burst as an increase in response rate following the onset of extinction is found to be wanting, raising more questions than it answers. Because questions of definition in science usually come down to those of measurement, the answer to the title's question is suggested to be found in how behavior prior to extinction is maintained and measured, when and how extinction is introduced, and where in time and how behavior early in extinction is measured. This analysis suggests that a single, uniform, and precise definition of the extinction burst is misguided. Examining how each of these facets contributes to what has been described generically as the extinction burst is a small, but important, part of Sidman's methodological legacy to the experimental analysis of behavior.     

My Brother’s Keeper? The Sibling Subsystem in the Context of Physical and Sexual Child Abuse

The sibling subsystem is of central importance and a possible protective factor for children. Nevertheless, it remains surprisingly understudied and lacks any theoretical or conceptual framework. The current study explored the sibling subsystem in the context of child abuse (CA). Thorough thematic analysis was conducted on the narratives of 30 children referred to forensic interviews following suspected physical or sexual abuse by a parent. Aged 4–14, all had at least one sibling each and referred to this sibling during their interviews in the specific context of the CA they had experienced. Their narratives shed light on two dynamics that can characterize the sibling subsystem in the context of CA: compensation and spillover of the trauma into the sibling subsystem. They stress the centrality of the sibling subsystem in the children’s lives and the siblings’ role in the children's survival of CA. The current study’s findings emphasize the urgency of continuing to develop studies in this area, as they will likely contribute to both prevention and intervention efforts.     

Neoliberal Beliefs and Perceptions of Unintended Adolescent Pregnancy after Consensual or Forced Sex

From a neoliberal perspective, young women are free to make autonomous choices and are personally responsible for the outcomes of these choices. Neoliberal ideals may appear to empower women as free sexual agents; however, an individualistic focus on self-sufficiency and personal responsibility may lead to harsh, decontextualized responses to those who experience unintended outcomes. We hypothesized that observers with stronger neoliberal beliefs would show more stigmatizing responses to an unintentionally pregnant adolescent. We also explored whether these expected associations would be moderated by whether or not the young woman chose to consent to sex. U.S. undergraduate students (n = 200) completed a measure of neoliberal beliefs and were randomly assigned to read one of two scenarios in which an adolescent became pregnant after either consensual or forced sex. As expected, participants with stronger neoliberal beliefs were more blaming toward the adolescent for becoming pregnant, felt less sympathy toward her, and had less positive attitudes about her receiving help. These associations remained after controlling for general political ideology and regardless of whether the pregnancy was due to consensual or forced sex. Our results suggest that, for the neoliberal observer, young women are held personally responsible for even uncontrollable sexual and reproductive outcomes.     

The effect of culture on the curvilinear relationship between performance and turnover

Although researchers have theorized that there exists a curvilinear relationship between job performance and voluntary turnover, their research has been tested in the United States or culturally similar Switzerland. Through a study of the performance-turnover relationship from a multinational service-oriented organization in 24 countries, we demonstrate that the general relationship between performance and turnover is similar across countries but the details of that relationship change across countries. Using 4 cultural dimensions--in-group collectivism, power distance, uncertainty avoidance, and performance orientation--we find that cultural factors alter the overall probability of voluntary turnover and influence the degree of curvilinearity in the performance-turnover relationship. Our findings have implications for research on the performance-turnover relationship, turnover research, and practice.     

Change detection by rhesus monkeys (Macaca mulatta) and pigeons (Columba livia)

Two monkeys (Macaca mulatta) learned a color change-detection task where two colored circles (selected from a 4-color set) were presented on a 4 × 4 invisible matrix. Following a delay, the correct response was to touch the changed colored circle. The monkeys' learning, color transfer, and delay transfer were compared to a similar experiment with pigeons. Monkeys, like pigeons (Columba livia), showed full transfer to four novel colors, and to delays as long as 6.4 s, suggesting they remembered the colors as opposed to perceptual based attentional capture process that may work at very short delays. The monkeys and pigeons were further tested to compare transfer with other dimensions. Monkeys transferred to shape and location changes, unlike the pigeons, but neither species transferred to size changes. Thus, monkeys were less restricted in their domain to detect change than pigeons, but both species learned the basic task and appear suitable for comparative studies of visual short-term memory. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

How to be proactive about interference: lessons from animal memory

Processes of proactive interference were explored using the pigeon as a model system of memory. This study shows that proactive interference extends back in time at least 16 trials (and as many minutes), revealing a continuum of interference and providing a framework for studying memory. Pigeons were tested in a delayed same/different task containing trial-unique pictures. On interference trials, sample pictures from previous trials reappeared as test pictures on different trials. Proactive-interference functions showed greatest interference from the most recent trial and with the longer of two delays (10 s vs. 1 s). These interference functions are accounted for by a time-estimation model based on signal detection theory. The model predicts that accuracy at test is determined solely by the ratio of the elapsed time since the offset of the current-trial sample to the elapsed time since the offset of the interfering sample. Implications for comparing memory of different species and different types of memory (e.g., familiarity vs. recollection) are discussed.