Randomized controlled trial of a preventive intervention for perinatal depression in high-risk Latinas.

Objective: A randomized controlled trial was conducted to evaluate the efficacy of a cognitive–behavioral (CBT) intervention to prevent perinatal depression in high-risk Latinas. Method: A sample of 217 participants, predominantly low-income Central American immigrants who met demographic and depression risk criteria, were randomized into usual care (UC; n = 105) or an 8-week CBT group intervention during pregnancy and 3 individual booster sessions during postpartum (n = 112). Participants completed measures assessing depressive symptoms (Center for Epidemiological Studies Depression Scale at baseline; Beck Depression Inventory, Second Edition [BDI–II]) and major depressive episodes (Mood Screener) at 5 time points throughout the perinatal period. Results: Intent-to-treat analyses indicated that intervention participants had significantly lower depressive symptoms and fewer cases of moderate depression (BDI–II ≥ 20) at Time 2 than UC participants. These effects were stronger for women who fully participated in the intervention (≥4 classes). The cumulative incidence of major depressive episodes was not significantly different between the intervention (7.8%) and UC (9.6%) groups. Conclusions: A CBT intervention for low-income, high-risk Latinas reduced depressive symptoms during pregnancy but not during the postpartum period. Low levels of depressive symptoms and lower than expected rates of clinical depression in both groups may partially be due to methodological issues. As perinatal depression is a significant public health problem, more work is needed to prevent perinatal depression in low-income, ethnically diverse women. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Status differences and in-group bias: A meta-analytic examination of the effects of status stability, status legitimacy, and group permeability.

This work examines the moderating effects of status stability, legitimacy, and group permeability on in-group bias among high- and low-status groups. These effects were examined separately for evaluative measures that were relevant as well as irrelevant to the salient status distinctions. The results support social identity theory and show that high-status groups are more biased. The meta-analysis reveals that perceived status stability, legitimacy, and permeability moderate the effects of group status. Also, these variables interacted in their influences on the effect of group status on in-group bias, but this was only true for irrelevant evaluative dimensions. When status was unstable and perceived as illegitimate, low-status groups and high-status groups were equally biased when group boundaries were impermeable, compared with when they were permeable. Implications for social identity theory as well as for intergroup attitudes are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mitigating disruptive effects of interruptions through training: What needs to be practiced?

It is generally accepted that, with practice, people improve on most tasks. However, when tasks have multiple parts, it is not always clear what aspects of the tasks practice or training should focus on. This research explores the features that allow training to improve the ability to resume a task after an interruption, specifically focusing on task-specific versus general interruption/resumption-process mechanisms that could account for improved performance. Three experiments using multiple combinations of primary tasks and interruptions were conducted with undergraduate psychology students. The first experiment showed that for one primary and interruption task-pair, people were able to resume the primary task faster when they had previous practice with the interruption. The second experiment replicated this finding for two other sets of primary and interruption task-pairs. Finally, the third experiment showed that people were able to resume a primary task faster only when they had previous practice with that specific primary and interruption task-pair. Experience with other primary and interruption task-pairs, or practice on the primary task alone, did not facilitate resumption. This suggests that a critical component in resuming after an interruption is the relationship between two tasks. These findings are in line with a task-specific mechanism of resumption and incompatible with a general-process mechanism. These findings have practical implications for developing training programs and mitigation strategies to lessen the disruptive effects of interruptions which plague both our personal and professional environments. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Cultivating the field of psychology: Psychological journals at the turn of the century and beyond.

Prominent psychologists, including G. Stanley Hall, James Mark Baldwin, and James McKeen Cattell, cultivated the field of psychological publishing with privately owned and managed journals. Hall's journals, including the American Journal of Psychology and Pedagogical Seminary, reflected his view of psychology as the empirical study of human nature and his support for applied psychology. Baldwin and Cattell's periodicals, including Psychological Review and Psychological Monographs, reflected a narrower scientific and academic view of psychology. Baldwin and Cattell were more successful editors than Hall and strategically linked their journals to the American Psychological Association (APA). The Psychological Review journals were purchased by APA in 1925. The narrower vision represented in these journals may have contributed to applied psychologists' dissatisfaction with APA during the late 1920s and early 1930s. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Expressed emotion and causal attributions in the spouses of depressed patients.

High levels of expressed emotion are thought to be related to the attributions relatives make about the causes of a patient's illness and problem behaviors. Causal attributions occurring during spontaneous speech in 43 spouses of depressed patients were examined. Consistent with theoretical prediction and with previous research in schizophrenia high critical spouses were more likely than low critical spouses to attribute patients symptoms and negative behaviors to factors that were controllable by and personal to the patients. High critical spouses also made more attributions that implied that they held patients responsible for their difficulties. Although predictive of spouses criticism these attribution dimensions did not predict patient relapse. The results suggest that causal attributions are important for understanding spouses criticism but are of limited predictive validity with respect to depressive relapse. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The detector system of the BigSol spectrometer at Texas A & M

The detector system used at the first focus of the BigSol superconducting solenoid beam line at the Texas A & M superconducting cyclotron is presented. The system is composed of a position sensitive PPAC followed by an ionization chamber (IC) with a YAP(Ce) array in its back plane. The position sensitivity of the PPAC as well the energy resolution of the IC is investigated as a function of the counting rate. Pulse height, pulse height resolution and time resolution of the YAP(Ce) crystals are studied for a variety of heavy ion beams ranging from ²⁰Ne to ¹⁹⁷Au at energies from 15 AMeV to 40 AMeV. The pulse shape discrimination method using a Flash ADC is also explored, in order to identify decay products (alpha particles and electron/gamma) from the fragments implanted in the scintillator.     

Development and validation of the pain response inventory for children.

The Pain Response Inventory (PRI) was developed as a multidimensional instrument to assess children's coping responses to recurrent pain. The PRI assesses 3 broad coping factors—Active, Passive, and Accommodative—each with subscales representing specific strategies for coping with pain. Confirmatory factor analysis was used to derive and cross-validate the factor structure of the PRI in 3 different samples of children and adolescents: 688 9–16 yr olds in general population, 120 8–18 yr old abdominal pain patients who also completed followup interviews 2-wks and 6 mo after initial interview, and 224 11–23 yr old former abdominal pain and well patients. The subscales were found to be internally consistent and reasonably stable. Validity of the subscales was assessed by examining the relations of particular coping strategies to various outcome indicators, including functional disability, somatization symptoms, and depressive symptoms. Results indicated that different types of health outcome were predicted by different patterns of PRI coping strategies, thus supporting the utility of a multidimensional approach to the assessment of coping responses to pain. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Age changes in processing speed as a leading indicator of cognitive aging.

Bivariate dual change score models were applied to longitudinal data from the Swedish Adoption/Twin Study of Aging to compare the dynamic predictions of 2-component theories of intelligence and the processing speed theory of cognitive aging. Data from up to 5 measurement occasions covering a 16-year period were available from 806 participants ranging in age from 50 to 88 years at the first measurement wave. Factors were generated to tap 4 general cognitive domains: verbal ability, spatial ability, memory, and processing speed. Model fitting indicated no dynamic relationship between verbal and spatial factors, providing no support for the hypothesis that age changes in fluid abilities drive age changes in crystallized abilities. The results suggest that, as predicted by the processing speed theory of cognitive aging, processing speed is a leading indicator of age changes in memory and spatial ability, but not verbal ability. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Recovering from interruptions: implications for driver distraction research

This research adopted a model of goal activation to study the mechanisms underlying interrupted task performance. The effects of interruption timing, type of interruption, and age on task time and primary task resumption time were explored under conditions in which attention was switched back and forth between two tasks, much as when drivers shift attention between attending to the road and to an in-vehicle task. The timing of interruptions had a significant impact on task resumption times, indicating that the most costly time to interrupt task performance is during the middle of a task. However, this effect was overshadowed by age-related performance decrements for older participants. Interruptions that prevented strategic rehearsal of goals resulted in longer resumption times as compared with interruptions that allowed rehearsal. Actual or potential applications of this research include the design of in-vehicle device user interfaces, the timing of in-vehicle messages, and current metrics for assessing driver distraction.