Estrogen and the neural mediation of female–male mounting in the rat.

Sexually receptive females mount sexually sluggish males to entice them to copulate, and estrogen and male olfactory cues mediate this female–male mounting (FMM) in the rat. This study examined whether brain regions that concentrate steroid hormones and receive olfactory projections were important for the mediation of FMM. Fos induction was observed within the medial amygdala, medial preoptic area, and ventromedial hypothalamus of ovariectomized, hormone-primed rats that displayed FMM compared with rats that did not. Excitotoxic lesions of those regions eliminated FMM, whereas implants of crystalline estradiol benzoate to the ventromedial hypothalamus, but not the medial preoptic area or medial amygdala, restored FMM. These data indicate that the ventromedial hypothalamus is a critical area of convergence of hormonal, olfactory, and somatosensory inputs for FMM. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The latent symptom structure of the Beck Depression Inventory–II in outpatients with major depression.

The Beck Depression Inventory–II (BDI–II) is a self-report instrument frequently used in clinical and research settings to assess depression severity. Although investigators have examined the factor structure of the BDI–II, a clear consensus on the best fitting model has not yet emerged, resulting in different recommendations regarding how to best score and interpret BDI–II results. In the current investigation, confirmatory factor analysis was used to evaluate previously identified models of the latent symptom structure of depression as assessed by the BDI–II. In contrast to previous investigations, we utilized a reliably diagnosed, homogenous clinical sample, composed only of patients with major depressive disorder (N = 425)—the population for whom this measure of depression severity was originally designed. Two 3-factor models provided a good fit to the data and were further evaluated by means of factor associations with an external, interviewer-rated measure of depression severity. The results contribute to a growing body of evidence for the Ward (2006) model, including a General (G) depression factor, a Somatic (S) factor, and a Cognitive (C) factor. The results also support the use of the BDI–II total scale score. Research settings may wish to model minor factors to remove variance extraneous to depression where possible. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Are exaggerated health complaints continuous or categorical? A taxometric analysis of the Health Problem Overstatement Scale.

A taxometric analysis of 3 factor scales extracted from the Health Problem Overstatement (HPO) scale of the Psychological Screening Inventory (PSI; R. I. Lanyon, 1970, 1978) was performed on the data from 1,240 forensic and psychiatric patients. Mean above minus below a cut, maximum covariance, and latent-mode factor analyses produced results indicative of dimensional latent structure for the exaggerated health complaints construct. The outcome of this and several other recent taxometric investigations indicates that across 3 different domains of feigning (i.e., psychiatric symptoms, memory problems, and health complaints), the overall feigning construct is ordered continuously along 1 or more dimensions rather than partitioned into discrete categories of malingerers and nonmalingerers. These findings call for more research on the extent to which the different domains of feigning share 1 or more dimensions in common. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Did lifetime rates of alcohol use disorders increase by 67% in 10 years? A comparison of NLAES and NESARC.

Two nationally representative epidemiological samples (the National Longitudinal Alcohol Epidemiological Survey and the National Epidemiological Survey of Alcohol and Related Conditions) have been used to track changes in the prevalence of alcohol use disorders (AUDs) between 1992 and 2002 in the United States. Strikingly, estimates from these two data sets suggest that the lifetime prevalence of AUD increased by approximately 67% (from 18.2% to 30.3%) during this time frame. This article explores potential reasons for these discrepant estimates. Analyses indicated that a vast majority of change in lifetime AUD occurred with respect to alcohol abuse and not alcohol dependence. Most of this increase in abuse was attributable to self-reported changes in hazardous use that did not track with other archival measures of outcomes related to hazardous use in the population. Key methodological differences regarding the frequency requirements for prior-to-past-year alcohol abuse appeared to explain most of the discrepancy in lifetime AUD estimates. These findings, in conjunction with the relative lack of differences in the 12-month prevalence of AUDs, suggest that the discrepant lifetime estimates are likely due to methodological differences between the two surveys. These findings have important implications for substance use and other psychiatric surveillance and epidemiology where meaningful cross-temporal comparisons are desired. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Ten-year stability and latent structure of the DSM–IV schizotypal, borderline, avoidant, and obsessive-compulsive personality disorders.

Evaluation of the validity of personality disorder (PD) diagnostic constructs is important for the impending revision of the Diagnostic and Statistical Manual of Mental Disorders. Prior factor analytic studies have tested these constructs in cross-sectional studies, and models have been replicated longitudinally, but no study has tested a constrained longitudinal model. The authors examined 4 PDs in the Collaborative Longitudinal Personality Disorders study (schizotypal, borderline, avoidant, and obsessive-compulsive) over 7 time points (baseline, 6 months, 1 year, 2 years, 4 years, 6 years, and 10 years). Data for 2-, 4-, 6- and 10-year assessments were obtained in semistructured interviews by raters blind to prior PD diagnoses at each assessment. The latent structure of the 4 constructs was differentiated during the initial time points but became less differentiated over time as the mean levels of the constructs dropped and stability increased. Obsessive-compulsive PD became more correlated with schizotypal and borderline PD than with avoidant PD. The higher correlation among the constructs in later years may reflect greater shared base of pathology for chronic personality disorders. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Assessment of borderline personality features in population samples: Is the Personality Assessment Inventory–Borderline Features scale measurement invariant across sex and age?

Borderline personality disorder (BPD) is more often diagnosed in women than in men, and symptoms tend to decline with age. Using a large community sample, the authors investigated whether sex and age differences in four main features of BPD, measured with the Personality Assessment Inventory–Borderline Features scale (PAI-BOR; Morey, 1991), are a result of measurement bias or if they represent true differences. The PAI-BOR was completed by four Sex × Age groups (N = 6,838). Multigroup confirmatory factor analysis showed that the PAI-BOR is measurement invariant across sex and age. Compared with men, women reported more borderline characteristics for affective instability, identity problems, and negative relationships but not for self-harm. Younger men had higher scores for identity problems and self-harm than did older men. Younger women had higher scores for identity problems and affective instability than did older women. Results suggest that the PAI-BOR can be used to study the etiology of BPD features in population-based samples and to screen for BPD features in clinical settings in both men and women of varying ages. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Are cross-cultural comparisons of personality profiles meaningful? Differential item and facet functioning in the Revised NEO Personality Inventory.

Measurement invariance is a prerequisite for confident cross-cultural comparisons of personality profiles. Multigroup confirmatory factor analysis was used to detect differential item functioning (DIF) in factor loadings and intercepts for the Revised NEO Personality Inventory (P. T. Costa, Jr., & R. R. McCrae, 1992) in comparisons of college students in the United States (N = 261), Philippines (N = 268), and Mexico (N = 775). About 40%–50% of the items exhibited some form of DIF and item-level noninvariance often carried forward to the facet level at which scores are compared. After excluding DIF items, some facet scales were too short or unreliable for cross-cultural comparisons, and for some other facets, cultural mean differences were reduced or eliminated. The results indicate that considerable caution is warranted in cross-cultural comparisons of personality profiles. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Watching and drinking: Expectancies, prototypes, and friends’ alcohol use mediate the effect of exposure to alcohol use in movies on adolescent drinking.

Objective: To investigate the psychological processes that underlie the relation between exposure to alcohol use in media and adolescent alcohol use. Design: The design consisted of a structural equation modeling analysis of data from four waves of a longitudinal, nationally representative, random-digit dial telephone survey of adolescents in the United States. Main Outcome Measures: The main outcome measures were adolescent alcohol consumption and willingness to use alcohol. Tested mediators were alcohol-related norms, prototypes, expectancies, and friends’ use. Results: Alcohol prototypes, expectancies, willingness, and friends’ use of alcohol (but not perceived prevalence of alcohol use among peers) were significant mediators of the relation between movie alcohol exposure and alcohol consumption, even after controlling for demographic, child, and family factors associated with both movie exposure and alcohol consumption. Conclusion: Established psychological and interpersonal predictors of alcohol use mediate the effects of exposure to alcohol use in movies on adolescent alcohol consumption. The findings suggest that exposure to movie portrayals may operate through similar processes as other social influences, highlighting the importance of considering these exposures in research on adolescent risk behavior. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

What is so special about male adolescent sexual offending? A review and test of explanations through meta-analysis.

We tested special and general explanations of male adolescent sexual offending by conducting a meta-analysis of 59 independent studies comparing male adolescent sex offenders (n = 3,855) with male adolescent non-sex offenders (n = 13,393) on theoretically derived variables reflecting general delinquency risk factors (antisocial tendencies), childhood abuse, exposure to violence, family problems, interpersonal problems, sexuality, psychopathology, and cognitive abilities. The results did not support the notion that adolescent sexual offending can be parsimoniously explained as a simple manifestation of general antisocial tendencies. Adolescent sex offenders had much less extensive criminal histories, fewer antisocial peers, and fewer substance use problems compared with non-sex offenders. Special explanations suggesting a role for sexual abuse history, exposure to sexual violence, other abuse or neglect, social isolation, early exposure to sex or pornography, atypical sexual interests, anxiety, and low self-esteem received support. Explanations focusing on attitudes and beliefs about women or sexual offending, family communication problems or poor parent–child attachment, exposure to nonsexual violence, social incompetence, conventional sexual experience, and low intelligence were not supported. Ranked by effect size, the largest group difference was obtained for atypical sexual interests, followed by sexual abuse history, and, in turn, criminal history, antisocial associations, and substance abuse. We discuss the implications of the findings for theory development, as well as for the assessment, treatment, and prevention of adolescent sexual offending. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Criminal thinking as a mediator of the mental illness–prison violence relationship: A path analytic study and causal mediation analysis.

Although mental illness and violence correlate, it has been speculated that this relationship is mediated by a series of third variables. The current study examined the possibility that the relationship between mental illness and prison violence is mediated by criminal thinking. General criminal thinking, as measured by the General Criminal Thinking (GCT) score of the Psychological Inventory of Criminal Thinking Styles (PICTS; Walters, 1995), was tested as a possible mediator of the mental illness–prison violence relationship. Using a prospective design and path analytic statistical technique, it was determined that general criminal thinking served as a partial mediator of the mental illness-institutional violence nexus in a sample of 2,487 male prison inmates. Causal mediation analysis also documented the presence of a small but statistically significant mediating role for general criminal thinking in this study. The implications of these results for understanding, predicting, and managing violent behavior in severely mentally ill inmates are discussed. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

The role of attachment to family, school, and peers in adolescents’ use of alcohol: A longitudinal study of within-person and between-persons effects.

A great deal of time and money has been spent to understand why adolescents abuse alcohol. Some of the most fruitful work considers the social context navigated by adolescents, including family, school, and peer contexts. However, most of this work focuses on differences between adolescents in these contexts. The present study adds to the literature by considering within-person changes in these contexts and examines the extent to which these changes are related to alcohol use. Significant changes in all 3 contexts were observed, and these changes were significantly related to alcohol use. The significant influence of intrapersonal variability highlights the importance of attending not only to chronic, between-individual issues facing at-risk youths but emergent and transient issues that may temporarily heighten alcohol use risk. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Sex and gender in the college classroom: A quantitative analysis of faculty–student interactions and perceptions.

Students and instructors from 24 classrooms across 8 departments at a major university were observed in this study to (a) assess for sex differences in faculty–student interactions and in students' perceptions of their college classroom environment, (b) compare student perceptions of their college classroom interaction patterns with observed faculty–student interactions, and (c) assess a variety of demographic characteristics together to determine their singular and/or interactive effects on faculty–student interaction patterns and student perceptions. Male and female students did not differ in their classroom participation or perceptions, and instructors did not interact differently with the male and female students. Student perceptions strongly correlated with their own behaviors and with instructor behaviors. Classroom interactions and student perceptions varied on the basis of different demographic characteristics including instructor sex, class size, instructor monitoring of gender–race equity in the classroom, gender relevance of the course, and the sex ratio of the class. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Factor structure and psychometric properties of the Brief Symptom Inventory–18 in women: A MACS approach to testing for invariance across racial/ethnic groups.

This study used data from 3 sites to examine the invariance and psychometric characteristics of the Brief Symptom Inventory–18 across Black, Hispanic, and White mothers of 5th graders (N = 4,711; M = 38.07 years of age, SD = 7.16). Internal consistencies were satisfactory for all subscale scores of the instrument regardless of ethnic group membership. Mean and covariance structures analysis indicated that the hypothesized 3-factor structure of the instrument was not robust across ethnic groups. It provided a reasonable approximation to the data for Black and White women but not for Hispanic women. Tests for differential item functioning (DIF) were therefore conducted for only Black and White women. Analyses revealed no more than trivial instances of nonuniform DIF but more substantial evidence of uniform DIF for 3 of the 18 items. After having established partial strong factorial invariance of the instrument, latent factor means were found to be significantly higher for Black than for White women on all 3 subscales (somatization, depression, anxiety). In conclusion, the instrument may be used for mean comparisons between Black and White women. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

What is the connection between true and false memories? The differential roles of interitem associations in recall and recognition.

Veridical memory for presented list words and false memory for nonpresented but related items were tested using the Deese/Roediger and McDermott paradigm. The strength and density of preexisting connections among the list words, and from the list words to the critical items, were manipulated. The likelihood of producing false memories in free recall varied with the strength of connections from the list words to the critical items but was inversely related to the density of the interconnections among the list words. In contrast, veridical recall of list words was positively related to the density of the interconnections. A final recognition test showed that both false and veridical memories were more likely when the list words were more densely interconnected. The results are discussed in terms of an associative model of memory, Processing Implicit and Explicit Representations (PIER 2) that describes the influence of implicitly activated preexisting information on memory performance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The hypothalamo-hypophysial system in Acipenseridae. V. Ecological-histophysiological analysis of the neurohypophysis of the female sturgeon Acipenser güldenst?dti Brandt during up-stream migration and after spawning

Neurohypophyses from sexually mature female sturgeons, Acipenser guldenstadti Brandt, killed before, soon after spawning, and during down-stream migration were studied light and electron microscopically. Ovaries were examined only under a light microscope. A large amount of neurosecretory material (3.5-4.5 arbitrary units) is found in the neurohypophysial "roots" during up-stream migration to spawning grounds. Neurosecretory fibres and their terminals are replete with elementary neurosecretory granules. Side by side with the latter some terminals contain single residual granules and few "synaptic" vesicles. Soon after spawning the amount of neurosecretory material decreases markedly in most individuals (content up to 1-3 units), and elementary granules are few in the fibres and their terminals. The number of residual granules increases, and "synaptic" vesicles are especially numerous. Granulated, disintegrating neurosecretory granules and granule-shadows occur in the preterminal parts of the fibres. The number of pituicytes increases becuase some "light" tanycytes seem to migrate from the ependymal into the subependymal layer. The restoration of neurosecretory material (reaching again up to 3.5-4.5 units) occurs within a month after spawning. The number of elementary granules increases in fibres and terminals while that of residual granules and "synaptic" vesicles decreases. These changes in the neurohypophysis of females after spawning are due to discharge of great amounts of peptide neurohorsmones into the general circulation after spawning. Spawning is regarded as a "physiological" stress for these females.     

Commentary on “Personality traits and the classification of mental disorders: Toward a more complete integration in DSM-5 and an empirical model of psychopathology”.

Comments on the original article Personality traits and the classification of mental Disorders: Toward a more complete integration in DSM–5 and an empirical model of psychopathology by Robert F. Krueger and Nicholas R. Eaton (see record 2010-13810-003). This article develops the larger theme that the fundamental quantitatively developed architecture of personality provides a sound base for classifying all areas of psychopathology and, more specifically, should underlie the current effort to revise the classification of personality disorders (PDs) in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). My commentary is organized around what I perceive to be four significant problems with the proposed change to a trait-based system: (1) unfamiliarity to clinicians (and possibly unfeasibility), (2) lack of clinical utility, (3) the preliminary quality of the science upon which the proposed change is based, and (4) harmful effects on the diagnosis of borderline personality disorder (BPD). (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A psychometric analysis of the Positive and Negative Affect Schedule for Children–Parent Version in a school sample.

The current study was the 1st to examine the psychometric properties of the Positive and Negative Affect Schedule for Children–Parent Version (PANAS-C-P) using a large school-based sample of children and adolescents ages 8 to 18 (N = 606). Confirmatory factor analysis supported a 2-factor (correlated) model of positive affect (PA) and negative affect (NA). The PANAS-C-P scale scores also demonstrated acceptable internal consistency and convergent and divergent validity. The PANAS-C-P PA and NA scale scores also related to measures of anxiety and depression in a manner consistent with the tripartite model. Scale means and standard deviations were reported by grade and sex to provide normative data for the PANAS-C-P scales. Results from the present study provide initial support for the PANAS-C-P as a parent-reported perspective of youth PA and NA among school-based youths. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

A discrete lattice plane analysis of the interfacial energy of coherent F.C.C.: H.C.P. interfaces and its application to the nucleation of γ in AlAg alloys

The discrete lattice plane (DLP) model is used to calculate the chemical interfacial energy (γ) of coherent f.c.c.:h.c.p. interfaces of arbitrary orientation in AlAg alloys. The compositional diffuseness of the interface is neglected. The results of these calculations are used to develop polar γ-plots of an h.c.p. crystal within an f.c.c. matrix, obtained as a function of alloy composition. The Wulff construction on the γ-plot yield the equilibrium shapes taken to correspond to that of homogeneously formed h.c.p. γ′ critical nuclei in an f.c.c. α AlAg matrix. These shapes are then used to calculate the steady state homogeneous nucleation rate of γ′ as a function of alloy composition and reaction temperature. Although these calculations indicated that homogeneous nucleation of coherent γ′ should be feasible in the temperature region between the GP zone solvus and the metastable equilibrium (α/(α+γ′)) solvus, a concurrent TEM investigation showed that the only γ′ present was nucleated on dislocations. While competition with such heterogeneous nucleation may have inhibited homogeneous nucleation, it is probable that the nearest neighbor version of the discrete lattice plane model used significantly underestimated the energy of coherent α:γ′ boundaries in AlAg alloys.     

Social–cognitive beliefs, alcohol, and tobacco use: A prospective community study of change following a ban on smoking in public places.

Objective: To examine social–cognitive change associated with behavior change after the introduction of a smoke-free public places policy. Design: Adults (N = 583) who use public houses licensed to sell alcohol (pubs) completed questionnaires assessing alcohol and tobacco consumption and social–cognitive beliefs 2 months prior to the introduction of the smoking ban in England on July 1, 2007. Longitudinal follow-up (N = 272) was 3 months after the introduction of the ban. Main outcome measures: Social–cognitive beliefs, daily cigarette consumption, and weekly alcohol consumption. Results: Smokers consumed considerably more alcohol than did nonsmokers at both time points. However, a significant interaction of Smoking Status × Time showed that while smokers had consumed fewer units of alcohol after the ban, nonsmokers showed an increase over the same period. There was a significant reduction in number of cigarettes consumed after the ban. Subjective norms concerning not smoking, and perceived severity of smoking-related illness increased across time. Negative outcomes associated with not smoking were reduced among former smokers and increased across time among smokers. Regression analyses showed that changes in subjective norm and negative outcome expectancies accounted for significant variance in change in smoking across time. Conclusion: Results suggest that the smoking ban may have positive health benefits that are supported by social–cognitive change. (PsycINFO Database Record (c) 2010 APA, all rights reserved)