Increasing Accuracy of Video Quality Ratings through Direction of Attention and Training

This paper describes the results of two studies undertaken to better understand the strong positive relationship between the content of a video clip and viewers' subjective ratings of the video quality of that clip. Experiment 1 evaluated the effect of training on video quality ratings. Experiment 2 assessed the impact of attention in these assessments. Experiment 1 showed that training participants on video quality assessment techniques removed viewers' heuristic reliance on affect while increasing accuracy. Experiment 2 demonstrated that participants' video quality ratings could also be improved by directing their focus of attention. Focusing viewers on quality did not show a moderation of the relationship between content immersion and video quality, as participants maintained high levels of content immersion even when focusing on video quality. Because training and attention increased quality rating accuracy, they could be utilized in video quality testing to improve the viewer feedback received. Copyright © 2013 John Wiley & Sons, Ltd.     

How Therapists Discuss Causality with Families in an Integrated Family Management and Therapy Service, a Qualitative Study with Focus Groups

Family therapy (FT) and family management (FM) approaches to psychosis have been distinguished by their understanding of causality. FM holds a biological understanding which could have negative consequences for the person with psychosis. FT, with its focus on interactions, has been criticised for its potential for implying that families are to blame for their relative’s psychosis. Although these two approaches have been integrated, the manner in which causality is discussed in family sessions within an integrated approach has not been researched. Qualitative research was conducted with clinicians working in an established integrated family intervention service to explore how they discuss causality. Four focus groups were conducted and a framework approach to thematic analysis used. Four themes developed from the analysis: how a shared understanding of causality is constructed; the use of an ‘explorative conversational’ therapeutic style to discuss causality; factors that limited the exploration of causality; and the challenges of working with issues of blame. The stress-vulnerability model, genograms, interactional-cycles and formulation were identified as useful tools to develop a shared understanding of causality. The therapeutic style of ‘explorative conversation’–based in FT, integrated with the stress-vulnerability model–based in FM, was identified as key to the integrated model and clinicians felt these two aspects addressed the criticisms that have been levelled at each approach. Complex family problems, abuse and illicit drug use were factors that challenged causality discussions. Families feeling blamed/blaming themselves and attempts to transform blame made up a dominant theme of the research.     

The Relationship Between Personality,Burnout, and Engagement Among the Indian Clergy

This study examined the relationship between the Big Five personality dimensions, burnout, and engagement among 511 Indian Catholic diocesan priests. We expected that Neuroticism would be positively associated with burnout and negatively associated with engagement. Moreover, we expected Extraversion, Openness, Agreeableness, and Conscientiousness to be negatively associated with burnout and positively associated with engagement. Hierarchical regression analyses largely confirmed these expectations. Results are discussed in the context of the broader literature on burnout and engagement, as well as the literature on priesthood.     

Transmitting delusional beliefs in a hypnotic model of folie à deux

Folie à deux is the transference of delusional ideas from one ‘primary’ individual to one or more ‘secondary’ individuals (Lasègue & Falret, 1877). However, it is difficult to investigate experimentally because often only one patient is identified as delusional. We investigated whether hypnosis could model the experiences of the secondary in this delusion. Our primary was a confederate, who displayed two delusional beliefs and attempted to transmit them to hypnotised subjects. We manipulated the status of the confederate so that they were portrayed as either “credible” or merely “interesting”. Many high hypnotisable individuals adopted the confederate’s beliefs and confabulated evidence in support of them. Also, subjects who interacted with a credible confederate extended their delusions beyond those displayed by the confederate. We discuss the strengths and limitations of this approach and suggest ways to improve the validity of this model.     

Can skilled readers perform a second task in parallel? A functional connectivity MRI study

When asked to search for a target letter while reading, the patterns with which people miss the target letter reveal information about the process of reading itself. Questions remain as to whether this paradigm reflects normal reading processes however. We used a novel continuous-performance neuroimaging paradigm to address this question. In separate scanning runs, subjects either read alone, read while searching for a target letter, or searched non-words continuously. Functional connectivity analysis recovered the full extent of brain areas identified for reading in a localizer scan, with no differences between reading alone and the dual task condition. Differences were found, however, between both reading conditions and the nonword search condition. These results demonstrate that in skilled readers brain activation associated with reading is unaffected by a concurrent letter-search task. They further demonstrate the utility of a naturalistic, continuous-performance paradigm for studying the neural basis of language processing.     

The interplay of attention and emotion: top-down attention modulates amygdala activation in psychopathy

Psychopathic behavior has long been attributed to a fundamental deficit in fear that arises from impaired amygdala function. Growing evidence has demonstrated that fear-potentiated startle (FPS) and other psychopathy-related deficits are moderated by focus of attention, but to date, no work on adult psychopathy has examined attentional modulation of the amygdala or concomitant recruitment of relevant attention-related circuitry. Consistent with previous FPS findings, here we report that psychopathy-related differences in amygdala activation appear and disappear as a function of goal-directed attention. Specifically, decreased amygdala activity was observed in psychopathic offenders only when attention was engaged in an alternative goal-relevant task prior to presenting threat-relevant information. Under this condition, psychopaths also exhibited greater activation in selective-attention regions of the lateral prefrontal cortex (LPFC) than did nonpsychopaths, and this increased LPFC activation mediated psychopathy’s association with decreased amygdala activation. In contrast, when explicitly attending to threat, amygdala activation did not differ in psychopaths and nonpsychopaths. This pattern of amygdala activation highlights the potential role of LPFC in mediating the failure of psychopathic individuals to process fear and other important information when it is peripheral to the primary focus of goal-directed attention.     

A Primer Of Closed Head Injury Sequelae In Post-Traumatic Stress Disorder

Abstract

By definition, an individual diagnosed with post-traumatic stress disorder (PTSD) has been exposed to a serious threat of physical harm that engenders concomitant feelings of fear, helplessness, or horror (American Psychiatric Association, 1994). According to the current diagnostic taxonomy, PTSD may develop when the person witnesses harm against someone else or learns of harm occurring to an intimate other. Yet, all too often, PTSD is associated with the direct experience of physical injury through assault, accident, or other violence. As such, individuals with PTSD are at increased risk of having sustained a head injury, particularly during the traumatic events that elicited the PTSD symptoms (Knight, 1996). Consistent with this assertion, there are indications that individuals who sustain a head injury are increasingly likely to develop subsequent PTSD (Bryant & Harvey, 1998; Chemtob et al., 1998), with the prevalence of PTSD in this population estimated to be as high as 30% (Bryant & Harvey, 1996). Moreover, among people with PTSD, those who have sustained head injuries are apt to have more severe symptoms than those who have not (Chemtob et al., 1998).