Low-frequency repetitive transcranial magnetic stimulation of the anterior temporal lobes does not dissociate social versus nonsocial semantic knowledge

Social conceptual knowledge is imperative to communicate with, interact with, and interpret human society; however, little is known about the neural basis of social concepts. Previous research has predominantly suggested that the right anterior temporal lobe (ATL) may specifically represent social conceptual knowledge, whereas the left ATL is necessary for general semantic processing. However, this view has not always been supported by empirical studies. Employing a lateralized design and two different semantic tasks and a nonsemantic control task, we aimed to clarify some of these ambiguities by potentially dissociating left from right functionality and social from nonsocial concepts, using inhibitory repetitive transcranial magnetic stimulation (rTMS) coupled with a sham and control site stimulation (N = 56). The results showed that stimulation of the left ATL led to overall faster processing times without affecting accuracy, whilst the right ATL and control groups did not significantly change in reaction times or accuracy. No difference occurred between social and nonsocial concepts after stimulation. This study is the first to show that inhibition of the left temporal lobe may improve performance on a semantic task and provides evidence that the ATLs may be lateralized in conceptual processing. The results do not confirm that the right temporal lobe is crucial for social conceptual processing, as inhibition did not significantly affect performance for social concepts.     

'I remember therefore I am, and I am therefore I remember': exploring the contributions of episodic and semantic self-knowledge to strength of identity

The present research explores the relationship between the two components of autobiographical memory--episodic and semantic self-knowledge--and identity strength in older adults living in the community and residential care. Participants (N= 32) completed the autobiographical memory interview and measures of personal identity strength and multiple group memberships. Contrary to previous research, autobiographical memory for all time periods (childhood, early adulthood, and recent life) in the semantic domain was associated with greater strength in personal identity. Further, we obtained support for the hypothesis that the relationship between episodic self-knowledge and identity strength would be mediated by knowledge of personal semantic facts. However, there was also support for a reverse mediation model indicating that a strong sense of identity is associated with semantic self-knowledge and through this may enhance self-relevant recollection. The discussion elaborates on these findings and we propose a self-knowledge and identity model (SKIM) whereby semantic self-knowledge mediates a bidirectional relationship between episodic self-knowledge and identity.     

Factor Structure Validation of the Alcohol Dependence Scale in a Heavy Drinking College Sample

The prevalence of alcohol use disorders in college students necessitates that adequate measures exist to assess students for abuse and dependence. The Alcohol Dependence Scale (ADS) is a continuous measure of the severity of alcohol involvement found to have a unidimensional factor structure in clinical samples. The latent factor structure of the ADS in college drinkers has not been examined and this study sought to replicate unidimensionality. Heavy college drinkers (N = 343) completed the ADS. Performance was examined using confirmatory factor analysis (CFA) and exploratory factor analysis (EFA). The CFA did not support a single factor solution. Follow-up EFA revealed a two factor structure. The first, termed “Acute Excessive Drinking” consisted of relatively commonly endorsed items relating to loss of behavioral control, blackouts, and obsessive/compulsive drinking. The second, termed “Severe Withdrawal Symptoms,” consisted of relatively infrequently endorsed items relating to withdrawal symptoms. The ADS does not appear to have the same factor structure in college and clinical samples, making it inadvisable as a linear measure of alcohol problems within a college population.     

End state copying by humans (Homo sapiens): implications for a comparative perspective on cumulative culture

It has been proposed that the uniqueness of human cumulative culture may be attributable to humans' greater orientation toward copying the process of behavior (imitation), as compared with the products (emulation), resulting in particularly high fidelity transmission. Following from previous work indicating that adult human participants can exhibit cumulative learning on the basis of product copying alone, we now investigate whether such learning involves high fidelity transmission. Eighty adult human (Homo sapiens) participants were presented with a task previously shown to elicit cumulative learning under experimental conditions, which involved building a tower from spaghetti and modeling clay. Each participant was shown two completed towers, ostensibly built by previous participants, but actually built to prespecified designs by the experimenter. This end state information was provided either in the form of photographs, or the presence of actual towers. High fidelity matching to these end states was apparent in both demonstration conditions, even for a design that was demonstrably suboptimal with regard to the goal of the task (maximizing tower height). We conclude that, although high fidelity transmission is likely to be implicated in cumulative culture, action copying is not always necessary for this to occur. Furthermore, since chimpanzees apparently copy behavioral processes and well as products, and also transmit behavior with high fidelity, the stark absence of unequivocal examples of cumulative culture in nonhumans may be attributable to factors other than imitative ability.     

Sexuality and Health Among Chinese Seniors in Canada

Research on sexuality among older immigrants is extremely inadequate. This paper presents the results and analysis based on a national survey using a random sample of 2,272 Chinese-Canadian seniors. Self-reported health is examined in relation to a range of demographic as well as sexuality variables. Logistic regression analysis shows that language (English) ability and income play an important role in the health of Chinese-Canadian seniors, along with the sexuality variables. Among men, both the frequency of sexual activity and satisfaction with sex life have a positive effect on health. Among women, only sexual satisfaction is found to be significant. Results from this study can inform future research, service delivery, and policymaking in health care and social service for seniors.     

Accuracy of perceptual and acoustic methods for the detection of inspiratory loci in spontaneous speech

The present study investigates the accuracy of perceptually and acoustically determined inspiratory loci in spontaneous speech for the purpose of identifying breath groups. Sixteen participants were asked to talk about simple topics in daily life at a comfortable speaking rate and loudness while connected to a pneumotach and audio microphone. The locations of inspiratory loci were determined on the basis of the aerodynamic signal, which served as a reference for loci identified perceptually and acoustically. Signal detection theory was used to evaluate the accuracy of the methods. The results showed that the greatest accuracy in pause detection was achieved (1) perceptually, on the basis of agreement between at least two of three judges, and (2) acoustically, using a pause duration threshold of 300 ms. In general, the perceptually based method was more accurate than was the acoustically based method. Inconsistencies among perceptually determined, acoustically determined, and aerodynamically determined inspiratory loci for spontaneous speech should be weighed in selecting a method of breath group determination.     

Integrating Diabetes Self-Management Interventions for Mexican-Americans into the Catholic Church Setting

Churches provide an innovative and underutilized setting for diabetes self-management programs for Latinos. This study sought to formulate a conceptual framework for designing church-based programs that are tailored to the needs of the Latino community and that utilize church strengths and resources. To inform this model, we conducted six focus groups with mostly Mexican-American Catholic adults with diabetes and their family members (N = 37) and found that participants were interested in church-based diabetes programs that emphasized information sharing, skills building, and social networking. Our model demonstrates that many of these requested components can be integrated into the current structure and function of the church. However, additional mechanisms to facilitate access to medical care may be necessary to support community members’ diabetes care.     

A Preliminary Study of Clinical Process in Relation to Outcome in Psychodynamic Psychotherapy for Panic Disorder

This study identified psychotherapeutic processes that relate meaningfully to psychotherapeutic outcome for patients with panic disorder undergoing Panic-Focused Psychodynamic Psychotherapy (PFPP) (Milrod et al., 1997). Subjects were 21 patients who participated in an open clinical trial of PFPP (Milrod et al., 2000; Milrod et al., 2001). The Interactive Process Assessment (IPA) (Klein, Milrod, and Busch, 1999), a process measure developed specifically to identify the process of PFPP, was used. Process-outcome relationships were calculated between process factors at early, mid, and late treatment and outcome measures at termination. Results showed that the therapist's focus on the transference late in treatment was associated with a decrease in panic symptoms. Transference focus early in the treatment, however, was correlated with an increase in related symptomatology, as measured by the HAM-A and SDS. It was unclear from the present study how focusing on panic symptomatology affected the treatment. This process might be better investigated by comparing this aspect of PFPP with alternative psychotherapies.     

The Relationship Between Religious Orientation,Right-Wing Authoritarianism,and Implicit Sexual Prejudice

The relationship between intrinsic, extrinsic, and quest religious orientations, right-wing authoritarianism (RWA), and implicit and explicit attitudes toward homosexual individuals were examined within a sample of predominantly Protestant college students in the United States. Implicit attitudes were measured with the Implicit Association Test, a computer program that recorded reaction times as participants categorized symbols (of heterosexual and homosexual individuals) and adjectives (good or bad words). Participants displayed fairly negative implicit and explicit attitudes toward homosexual individuals (i.e., sexual prejudice). Intrinsic religious orientation uniquely predicted increased explicit sexual prejudice (when extrinsic, quest, and impression management were statistically controlled), and RWA appeared to mediate this effect. In contrast, the positive relationship between intrinsic religion and implicit sexual prejudice did not disappear when controlling for RWA. Although RWA seemed to be related to self-reports of prejudice, intrinsic religious orientation was uniquely related to automatic negative attitudes toward homosexual individuals.     

Internal feature saliency as a marker of familiarity and configural processing

Two experiments that explore the internal feature advantage (IFA) in familiar face processing are reported. The IFA involves more efficient processing of internal features for familiar faces over unfamiliar ones. Experiment 1 examined the possibility of a configural basis for this effect through use of a matching task for familiar and unfamiliar faces presented both upright and upside-down. Results revealed the predicted IFA for familiar faces when stimuli were upright, but this was removed when stimuli were inverted. Experiment 2 examined the degree of training required before the IFA was demonstrated. Latency results revealed that whilst 90–180 s of exposure was sufficient to generate an IFA of intermediate magnitude, 180–270 s of exposure was required before the IFA was equivalent to that demonstrated for a familiar face. Taken together, these results offer three conclusions: First, the IFA is reaffirmed as an objective indicator of familiarity; second, the IFA is seen to rest on configural processing; and finally, the development of the IFA with familiarity indicates a development of configural processing with familiarity. As such, insight is gained as to the type of processing changes that occur as familiarity is gradually acquired.