The topology of performance curves during 72 hours of sleep loss: A memory and search task

Three levels of working memory load of a visual search (Memory and Search) task were tested in a 72-hour sleep deprivation paradigm. General performance and accuracy decrease over time with monotonic and rhythmic components. The signal detection discriminability index, d', decreases monotonically with rhythmic variations. The index of response bias, β, shows no monotonic trend, but significant circadian rhythmicity. The extent of the monotonic and rhythmic changes in accuracy and in d' is directly related to the level of working memory load. The amplitude of the circadian component of accuracy and d' is enhanced for the higher levels of working memory load. The implication of potentiated circadian rhythmicity as a function of cumulative sleep loss is discussed.     

Aspirant Sage or Dysfunctional Seer? Cognitive Dissonance and Pastoral Vulnerability in the Profile of Daniel

Employing a psychological lens and using the “I”-Window as a port of entry, this essay focuses on uncovering the internal profile of Daniel through his first-person visionary report (Dan 7–12). Incorporating a three-world reading strategy, I intentionally foreground the juxtaposition between the world of the text and the world in front of the text (the community of pastors). The idea of cognitive dissonance emerges as I compare the “private Daniel” with the “public Daniel” through textual construction. As a demonstrated example of the “empirics” of engaging text emotively, I seek to appropriate the internal turmoil of Daniel as a result of the impact of the exotic visionary experience upon him to the vulnerability of the pastoral vocation.     

Spontaneous recovery of extinguished fear responses deepens their extinction: a role for error-correction mechanisms

A series of experiments used a within-subject design to study spontaneous recovery of fear responses (freezing) to an extinguished conditioned stimulus (CS) in rats. Experiments 1, 2, 3, and 4 demonstrated that: a remotely extinguished CS elicited more freezing than a recently extinguished one on a common test; that the CS showing recovery underwent greater response loss across additional extinction than the one lacking recovery; and that spontaneous recovery and deepening of response loss survived reconditioning. Experiment 5 demonstrated that an excitor extinguished in compound with a CS showing recovery suffered greater loss than an excitor extinguished in compound with a CS not showing recovery, implying that the differential change is regulated by a common error term. Experiments 6 and 7 demonstrated that extinction of a compound composed of two CSs, one showing recovery and a second lacking recovery, produced greater loss to the CS that showed recovery, implying that the change is also regulated by individual error term.     

Is manualized family‐based treatment for adolescent anorexia nervosa acceptable to patients? Patient satisfaction at the end of treatment

Patient satisfaction with treatment sheds light on the acceptability, disseminability and usefulness of treatments. This study aimed to assess the perspectives of families who completed treatment using a manual-driven family-based treatment for anorexia nervosa. We hypothesized that overall, manualized treatment would be viewed as acceptable and helpful, but that none the less, a proportion of patients would identify a wish for other types or additional therapy. A total of thirty-four families participated in the survey. Results suggest that patients and families viewed the treatment as highly effective and acceptable. However, approximately a quarter suggested that individual therapy, more family therapy, and focusing on other issues besides anorexia nervosa would improve treatment. These data suggest that a manual-driven family-based treatment for adolescents with anorexia nervosa is acceptable to adolescents and their parents, though modifications to include additional therapy and individual therapy might be considered in some cases.     

Relations between symptom severity,illness perceptions,visceral sensitivity,coping strategies and well-being in irritable bowel syndrome guided by the common sense model of illness

Irritable Bowel Syndrome (IBS) is a common condition affecting around 10–20% of the population and associated with poorer psychological well-being and quality of life. The aim of the current study was to explore the efficacy of the Common Sense Model (CSM) using Structural Equation Modelling (SEM) in an IBS cohort. One hundred and thirty-one IBS patients (29 males, 102 females, mean age 38 years) participating in the IBSclinic.org.au pre-intervention assessment were included. Measures included IBS severity (Irritable Bowel Syndrome Severity Scoring System), coping patterns (Carver Brief COPE), visceral sensitivity (Visceral Sensitivity Index), illness perceptions (Brief Illness Perceptions Questionnaire), psychological distress (Depression, Anxiety and Stress Scale), and quality of life (IBS Quality of Life scale; IBS-QoL). Using SEM, a final model with an excellent fit was identified (χ² (8) = 11.91, p = .16, χ²/N = 1.49, CFI > .98, TLI > .96, SRMR < .05). Consistent with the CSM, Illness perceptions were significantly and directly influenced by IBS severity (β = .90, p < .001). Illness perceptions in turn directly influenced maladaptive coping (β = .40, p < .001) and visceral sensitivity (β = .70, p < .001). Maladaptive coping and visceral sensitivity were significantly associated with psychological distress (β = .55, p < .001; β = .22, p < .01) and IBS-QoL (β = –.28, p < .001; β = –.62, p < .001). Based on these findings, we argue that to augment the adverse impact of IBS severity on IBS-QoL and psychological distress, psychological interventions will be best to target the mediating psychological processes including illness beliefs, visceral sensitivity and maladaptive coping.     

Additional exposures to a compound of two preexposed stimuli deepen latent inhibition

The present experiments studied the role of error correction mechanisms in the latent inhibition of conditioned fear responses by conditioned stimulus (CS) preexposure. They demonstrated that a preexposed CS subjected to additional exposures in compound with either another preexposed stimulus or a novel stimulus was more latently inhibited than a preexposed CS which received additional exposures in isolation. They also showed that a preexposed CS subjected to additional exposures in compound with another preexposed stimulus was more latently inhibited than a preexposed CS given additional exposures in compound with a novel stimulus. These results were discussed in terms of the Hall-Rodriguez (2010) model of latent inhibition.     

Maternal attributions and young children's conduct problems: a longitudinal study

The association between negative maternal attributions and child conduct problems is well established in correlational studies. However, little is known about how these variables influence each other over time. The present study examined patterns of prediction over time between maternal attributions and pre‐school conduct problems. Sixty mothers and their 3‐year‐old children with a range of levels of conduct problems were interviewed when the child was just 3, and then again when the child was just 4. Childhood conduct problems were assessed using the parental account of childhood symptoms and parental attributions were assessed using a modification of Walker's Parental Attribution Questionnaire. Results indicate that even as young as age 3, child conduct problems are associated with negative maternal attributions. In longitudinal analyses, children's conduct problems at age 3 predicted mothers' attributions at age 4, but mothers' attributions did not predict children's conduct problems over the same time period. The data are consistent with the notion that negative attributions may be a result, rather than a cause, of having a difficult‐to‐manage child. This has implications for current proposed mechanisms that link maternal attributions and child conduct problems, and thus for interventions for these problems. Copyright © 2006 John Wiley & Sons, Ltd.     

The Impacts of Personality Traits,Use Intensity and Features Use of LinkedIn on Bridging Social Capital

Applied Research in Quality of Life - This exploratory study examines the effects of LinkedIn users’ personality traits, use intensity, and LinkedIn feature usage patterns on their perceived...     

Regional variation in the inversion effect for faces: differential effects for feature shape, feature configuration, and external contour

Faces are perceived via an orientation-dependent expert mechanism. We previously showed that inversion impaired perception of the spatial relations of features more in the lower face than in the (more salient) upper face, suggests a failure to rapidly process this type of structural data from the entire face. In this study we wished to determine if this interaction between inversion and regional salience, which we consider a marker for efficient whole-face processing, was specific to second-order (coordinate) spatial relations or also affected other types of structural information in faces. We used an oddity paradigm to test the ability of seventeen subjects to discriminate changes in feature size, feature spatial relations, and external contour in both the upper and lower face. We also tested fourteen subjects on perception of two different types of spatial relations: second-order changes that create plausible alternative faces, and illegal spatial changes that transgress normal rules of facial geometry. In both experiments we examined for asymmetries between upper-face and lower-face perceptual accuracy with brief stimulus presentations. While all structural changes were less easily discerned in inverted faces, only changes to spatial relations showed a marked asymmetry between the upper and lower face, with far worse performance in the mouth region. Furthermore, this asymmetry was found only for second-order spatial relations and not illegal spatial changes. These results suggest that the orientation-dependent face mechanism has a rapid whole-face processing capacity specific to the internal second-order (coordinate) spatial relations of facial features.     

Measures of child and adolescent psychopathology in Asia

This article reviews measures of child and adolescent psychopathology used in Asian cultures. Sixteen imported measures from the West are identified and their psychometric equivalence across cultures is reviewed; 2 new measures are briefly introduced. Although initial evidence is generally promising, more studies are needed to support their use in Asia. One recently developed Singapore measure cannot be considered genuinely indigenous. Culture-specific items proposed for imported measures could be grouped into existing diagnostic constructs. There is, as yet, no strong theoretical support for culture-bound diagnostic constructs in Asian cultures.