Aging and reflective processes of working memory: binding and test load deficits

It was hypothesized that age-related deficits in episodic memory for feature combinations (e.g., B. L. Chalfonte & M. K. Johnson, 1996) signal, in part, decrements in the efficacy of reflective component processes (e.g., M. K. Johnson, 1992) that support the short-term maintenance and manipulation of information during encoding (e.g., F. 1. M. Craik. R. G. Morris. & M. L. Gick, 1990; T. A. Salthouse, 1990). Consistent with this, age-related binding deficits in a working memory task were found in 2 experiments. Evidence for an age-related test load deficit was also found: Older adults had greater difficulty than young adults when tested on 2 features rather than 1, even when binding was not required. Thus, disruption of source memory in older adults may involve deficits in both encoding processes (binding deficits) and monitoring processes (difficulty accessing multiple features, evaluating them, or both).     

Truth and consequences

In his 1987 paper “Truth or Consequences,” Dan Brock describes a deep conflict between the goals and virtues of philosophical scholarship and public policymaking: whereas the former is concerned with the search for truth, the latter must primarily be concerned with promoting good consequences. When philosophers are engaged in policymaking, he argues, they must shift their primary goal from truth to consequences—but this has both moral and methodological costs. Brock’s argument exemplifies a pessimistic, but not uncommon, view of the possible shape and nature of applied philosophy. The present paper paints a richer and more optimistic picture. It argues that the difference between theoretical philosophy and applied philosophy is not best understood as a choice between truth and consequences. On the contrary, applied philosophers engage in forms of truth-seeking that are properly concerned with consequences—including the consequences of philosophical practice itself.     

Observational Effects on Preference Selection for Four Children on the Autism Spectrum: A Replication

Individuals with autism have been noted to have restricted interests and repetitive behavior such as nonfunctional manipulation of objects. In this study, we used an observational conditioning procedure to switch the preference of items for four individuals diagnosed with autism who are considered lower functioning. The procedure consisted of the participant observing an adult playing with toys that were initially non‐preferred by the participant in a functional and engaging manner. For two participants, results were similar to the findings by Leaf; one participant required additional conditioning procedures, and we were unable to switch the preference for the other participant. Copyright © 2015 John Wiley & Sons, Ltd.     

Semantically incongruent objects attract eye gaze when viewing scenes for change

Past research has shown that change detection performance is often more efficient for target objects that are semantically incongruent with a surrounding scene context than for target objects that are semantically congruent with the scene context. One account of these findings is that attention is attracted to objects for which the identity of the object conflicts with the meaning of the scene, perhaps as a violation of expectancies created by earlier recruitment of scene gist information. An alternative account of the performance benefit for incongruent objects is that attention is more apt to linger on incongruent objects, as perhaps identifying these objects is more difficult due to conflicting information from the scene context. In the current experiment, we present natural scenes in a change detection task while monitoring eye movements. We find that eye gaze is attracted to these objects relatively early during scene processing.     

Preferences Regarding Targeted Education and Risk Assessment in People with a Family History of Major Depressive Disorder

Genetic testing for susceptibility to major depressive disorder (MDD) is not available for clinical use at present. Given this, family history remains the best predictor for development of MDD, and family-history-based risk assessment and information about familial aspects of MDD may be useful to clients at increased risk for MDD attending for genetic counseling. This study uses a mixed-methods design to assess the information needs and preferences of people at increased familial risk for MDD. Telephone interviews were conducted with 23 individuals, who had at least one first-degree relative with MDD and were recruited through advertisements placed on depression education websites. The most preferred way to access depression information was via the internet (87 % of participants), although this preference may have been due to the internet-based recruitment method. The second most preferred dissemination strategy (56 %) was face-to-face delivery through a health professional, including genetic counselors. Individuals reported a need for information about etiology and development of MDD, reproductive decision-making, early detection of symptoms and risk-reducing strategies. Nearly all participants expressed an interest in risk assessment. The present study found evidence of a high level of interest for information targeted to people at increased familial risk for MDD. Genetic counselors are likely to be called upon increasingly to provide supportive counseling to assist clients at increased familial risk in interpreting and contextualizing such information once it becomes available.     

Does Knowing Why Someone is Gay Influence Tolerance? Genetic,Environmental, Choice,and “Reparative” Explanations

In the U.S., belief that sexual orientation is genetically based is tied to greater tolerance toward gay men and lesbians and a belief that they deserve rights equal to those of other citizens. This study explores whether evidence for a particular causal explanation of sexual orientation influences participants’ tolerance toward gay men and lesbians. Participants were 224 heterosexual college students provided with scientific evidence that sexual orientation is genetically caused, environmentally caused, or a choice, who then answered questionnaires assessing their attitudes toward science, their tolerance toward gay men and lesbians, their selection of the best explanation for sexual orientation, and their assessments of statements about an imagined gay man (which, together, comprised their level of support for a “reparative” explanation of gay male sexuality viewed as the result of trauma, poor father–son relations, and immorality). Participants who were male, black, religious, or believed that the environmental or choice explanation of sexual orientation was the best, were less tolerant and more supportive of the reparative explanation than, respectively, participants who were female, white, nonreligious, or believed that the genetic explanation was the best. By contrast, participants were less tolerant when they read that scientific findings support a genetic explanation than when they read that scientific findings support choice as an explanation. Participants’ level of support for the reparative explanation correlated positively with their level of intolerance, suggesting that increasing tolerance toward gay men and lesbians may be more dependent on diminishing support for tenets of the reparative explanation than in convincing heterosexuals that sexual desires are under genetic control, which may influence some heterosexuals who believe otherwise to feel more intolerant.     

The Role of Religious Leaders in Promoting Healthy Habits in Religious Institutions

The growing obesity epidemic in the West, in general, and the USA, in particular, is resulting in deteriorating health, premature and avoidable onset of disease, and excessive health care costs. The religious community is not immune to these societal conditions. Changing health behavior in the community requires both input from individuals who possess knowledge and credibility and a receptive audience. One group of individuals who may be uniquely positioned to promote community change but have been virtually ignored in the applied health and consulting psychology literature is religious leaders. These individuals possess extraordinary credibility and influence in promoting healthy behaviors by virtue of their association with time-honored religious traditions and the status which this affords them—as well as their communication skills, powers of persuasion, a weekly (captive) audience, mastery over religious texts that espouse the virtues of healthy living, and the ability to anchor health-related actions and rituals in a person’s values and spirituality. This article focuses on ways in which religious leaders might promote healthy habits among their congregants. By addressing matters of health, nutrition, and fitness from the pulpit and in congregational programs, as well as by visibly adopting the tenets of a healthier lifestyle, clergy can deliver an important message regarding the need for healthy living. Through such actions, religious leaders can be effective agents in promoting critical change in these areas.     

Narratives,mechanisms and progress in historical science

Geologists, Paleontologists and other historical scientists are frequently concerned with narrative explanations targeting single cases. I show that two distinct explanatory strategies are employed in narratives, simple and complex. A simple narrative has minimal causal detail and is embedded in a regularity, whereas a complex narrative is more detailed and not embedded. The distinction is illustrated through two case studies: the ‘snowball earth’ explanation of Neoproterozoic glaciation and recent attempts to explain gigantism in Sauropods. This distinction is revelatory of historical science. I argue that at least sometimes which strategy is appropriate is not a pragmatic issue, but turns on the nature of the target. Moreover, the distinction reveals a counterintuitive pattern of progress in some historical explanation: shifting from simple to complex. Sometimes, historical scientists rightly abandon simple, unified explanations in favour of disunified, complex narratives. Finally I compare narrative and mechanistic explanation, arguing that mechanistic approaches are inappropriate for complex narrative explanations.     

Social Anxiety Symptoms and Suicidal Ideation in a Clinical Sample of Early Adolescents: Examining Loneliness and Social Support as Longitudinal Mediators

Recent research has shown that social anxiety may be related to increased risk for suicidal ideation in teens, although this research largely has been cross-sectional and has not examined potential mediators of this relationship. A clinical sample of 144 early adolescents (72 % female; 12–15 years old) was assessed during psychiatric inpatient hospitalization and followed up at 9 and 18 months post-baseline. Symptoms of social anxiety, depression, suicidal ideation, loneliness, and perceived social support were assessed via structured interviews and self-report instruments. Structural equation modeling revealed a significant direct relationship between social anxiety symptoms at baseline and suicidal ideation at 18 months post-baseline, even after controlling for baseline depressive symptoms and ideation. A second multiple mediation model revealed that baseline social anxiety had a significant indirect effect on suicidal ideation at 18 months post-baseline through loneliness at 9 months post-baseline. Social anxiety did not have a significant indirect effect on suicidal ideation through perceived social support from either parents or close friends. Findings suggest that loneliness may be particularly implicated in the relationship between social anxiety and suicidality in teens. Clinicians should assess and address feelings of loneliness when treating socially anxious adolescents.