Male HIV-1 transgenic rats show reduced cocaine-maintained lever-pressing compared to F344 wildtype rats despite similar baseline locomotion

The HIV-1 transgenic (Tg) rat model is valuable for understanding HIV-associated neurocognitive disorders (HAND) and accompanying substance use and misuse. Tg and F344/NHsd wildtype (WT) rats were allowed to self-administer intrajugular cocaine. For the first 7 sessions, neither genotype self-administered cocaine (0.1 mg/kg/infusion) on a fixed ratio 1 schedule. We thus implemented a lever–cocaine “autoshaping” session followed by a series of manipulations changing dose and reinforcement schedule. Tg rats self-administered much less cocaine than WT rats throughout the study. Of 8 Tg rats, 5 modestly increased self-administration from sessions 36–50. Of those, only 3 showed a lever discrimination. Of 10 WT rats, 8 acquired robust self-administration by session 19; all WT rats self-administered cocaine by the end of the study. WT and Tg rats had similar baseline locomotor activity in the self-administration chamber suggesting that the low levels of cocaine intake in the Tg rats did not reflect a nonspecific motor impairment in this rat strain. Concomitant measurement of activity with self-administration revealed activity increases that followed increased cocaine intake. That relation held in Tg rats. Therefore, the present study provides evidence that HIV-1 Tg rats are less sensitive to the reinforcing effects of cocaine than their F344 WT counterparts.     

Mental Health Literacy and Peer-to-Peer Counseling Referrals Among Community College Students

Mental health literacy (MHL) has utility for promoting peer-to-peer referrals to mental health support services among university students. However, there is a gap in the extant literature about the potential usefulness of MHL for supporting the mental health of community college students, a population facing a number of mental health conditions. The authors examined the construct validity and the utility of 3 dimensions of MHL as predictors of peer-to-peer referrals to the counseling center among community college students. Results of confirmatory factor analyses supported the dimensionality of the instrumentation and a hierarchical logistic regression analysis revealed that MHL was a significant positive predictor of peer-to-peer referrals to the counseling center. Implications for counseling practice and future research are discussed.     

Reducing online application redundancy: Effects on applicant attrition and quality

Job applications have long been a staple of the hiring process and online applications have rapidly become the new norm. The ability to examine applicant attrition—those who start the application but do not finish—and applicant quality are the two benefits of online applications. This study evaluates the effect of reducing application redundancy (not making applicants re‐enter information contained on their resumes) on applicant attrition and quality, with hypotheses derived from signaling theory and economics (cost/benefits). Results demonstrate that reducing redundancy leads to a reduction in applicant attrition across jobs, with the largest magnitude of change found in computer‐related jobs. This reduced attrition does not reduce applicant quality and some evidence suggests that applicant quality may even increase.     

Revisiting predictive bias of cognitive ability tests against Hispanic American job applicants

Previous studies have concluded that cognitive ability tests are not predictively biased against Hispanic American job applicants because test scores generally overpredict, rather than underpredict, their job performance. However, we highlight two important shortcomings of these past studies and use meta-analytic and computation modeling techniques to address these two shortcomings. In Study 1, an updated meta-analysis of the Hispanic–White mean difference (d-value) on job performance was carried out. In Study 2, computation modeling was used to correct the Study 1 d-values for indirect range restriction and combine them with other meta-analytic parameters relevant to predictive bias to determine how often cognitive ability test scores underpredict Hispanic applicants’ job performance. Hispanic applicants’ job performance was underpredicted by a small to moderate amount in most conditions of the computation model. In contrast to previous studies, this suggests cognitive ability tests can be expected to exhibit predictive bias against Hispanic applicants much of the time. However, some conditions did not exhibit underprediction, highlighting that predictive bias depends on various selection system parameters, such as the criterion-related validity of cognitive ability tests and other predictors used in selection. Regardless, our results challenge “lack of predictive bias” as a rationale for supporting test use.     

Deflationism About Logic

Journal of Philosophical Logic - Logical consequence is typically construed as a metalinguistic relation between (sets of) sentences. Deflationism is an account of logic that challenges this...     

Four New Works on the Mahābhārata

International Journal of Hindu Studies -     

Appearance and reality

There is tension between the appealing idea that visual experience puts us in touch with objective reality and the doctrine of perceptual relativity, the claim that experience varies with such factors as distance, lighting, and angle of view. In this paper I present arguments for relativity, and then go on to propose that in view of relativity, we should believe that the properties presented to us in perception are relational and viewpoint‐dependent. I conclude by sketching a theory of how we nonetheless manage to achieve contact with objective properties. According to the theory, such contact is best explained in terms of perceptual representations acting in concert with cognitive and motoric representations, not in terms of perceptual representations alone.     

Ideological rupturing

Seeking to rectify the asocial nature of conventional social psychological investigation, some researchers and scholars have sought ways to better understand what is shared in everyday thinking and have, accordingly, focused their attention on the notion of ideology. Although this vein of scholarship has reclaimed the social domain, it has not thoroughly accounted for the way that ideologies can be imposed, and as such, does not adequately address the concept in a way that honors its origin and development. In this paper, I articulate a conceptual framework that can be used to underpin research on momentary ideological impositions in relation to people's negotiation of imposed value orientations—moments that can be described as instances of ideological rupturing. After situating this articulation in relation to the work of other ideology‐focused psychologists, I introduce a recent enactment of educational policy as an illustrative case of ideological rupturing. In so doing, I present a narrative approach that is grounded in dialogic activity as an ideal way to investigate instances of ideological rupturing.     

Multifarious person perception: How social perceivers manage the complexity of intersectional targets

Stereotyping plays an important role in how we perceive the members of social groups. Yet stereotyping is complicated by the fact that every individual simultaneously belongs to multiple social groups. For example, the stereotypes that are called to mind about a Black individual can vary depending on that person's age, gender, and sexual orientation. This phenomenon—termed intersectional stereotyping—has recently inspired a variety of intriguing research findings. But these research findings pose challenges for prevalent theories of stereotyping. These prevalent theories tend to argue either that (a) perceivers inevitably attend to certain social identities (e.g., gender) when stereotyping intersectional targets, or that (b) perceivers inevitably attend to all detectable social identities at once. In contrast to these perspectives, we argue that perceivers generally attend to just one social identity (or one intersection of identities) at a time when stereotyping intersectional targets, as a function of the social context. For example, gay Black men can be alternately stereotyped as gay people, as Black people, as men, or as gay Black men specifically. The approach described here can account for a diverse array of findings emerging from research on intersectional stereotyping. Moreover, by specifying the factors that render particular identities salient in the minds of social perceivers, this approach offers clear and falsifiable predictions regarding the situated stereotyping of multifaceted individuals.     

Experiences of school bullying in Northern Ireland: data from the Life and Times Survey

Little is known about the levels of bully/victim behaviors in schools in Northern Ireland. The aim of the present study was to supplement previous research findings from Northern Ireland by examining the self-reported experiences of school bullying among Northern Ireland children through data collected as part of the 1998 "Youth Life and Times Survey." A random sample of 397 12 to 17-year-olds living throughout Northern Ireland were interviewed during 1998 and 1999. As part of the larger survey, six questions were asked relating to experience of bullying behaviors and being a victim of such behaviors. The findings suggests that the incidence of school bullying in Northern Ireland may be higher than those found in the rest of Ireland and the United Kingdom. Furthermore, the data supplements previous findings among Northern Irish children employing alternate measures of bully/victim problems.