Instrumental learning and cognitive flexibility processes are impaired in children exposed to early life stress

Children who experience severe early life stress show persistent deficits in many aspects of cognitive and social adaptation. Early stress might be associated with these broad changes in functioning because it impairs general learning mechanisms. To explore this possibility, we examined whether individuals who experienced abusive caregiving in childhood had difficulties with instrumental learning and/or cognitive flexibility as adolescents. Fifty‐three 14–17‐year‐old adolescents (31 exposed to high levels of childhood stress, 22 control) completed an fMRI task that required them to first learn associations in the environment and then update those pairings. Adolescents with histories of early life stress eventually learned to pair stimuli with both positive and negative outcomes, but did so more slowly than their peers. Furthermore, these stress‐exposed adolescents showed markedly impaired cognitive flexibility; they were less able than their peers to update those pairings when the contingencies changed. These learning problems were reflected in abnormal activity in learning‐ and attention‐related brain circuitry. Both altered patterns of learning and neural activation were associated with the severity of lifetime stress that the adolescents had experienced. Taken together, the results of this experiment suggest that basic learning processes are impaired in adolescents exposed to early life stress. These general learning mechanisms may help explain the emergence of social problems observed in these individuals.     

Effects of counseling Ashkenazi Jewish women about breast cancer risk

The goal of this study was to determine whether genetic counseling or psychosocial group counseling provided to Ashkenazi women can reduce breast cancer worry, cancer risk perception, and interest in having genetic testing. Women (N=211) were randomized to receive individual genetic risk counseling, to receive a group psychosocial group counseling, or to serve as a control group. The authors found that both counseling methods reduced cancer worry, lowered perceptions of breast cancer risk, and decreased interest in having genetic testing. Counseling can help women gain a more accurate perception of their risk, expose them to the benefits and limitations of genetic testing, and reduce their worry about cancer.     

Reliability and validity of the Women's Health Initiative Insomnia Rating Scale

The reliability and construct validity of the 5-item Women's Health Initiative Insomnia Rating Scale (WHIIRS) were evaluated in 2 studies. In Study 1, using a sample of 66,269 postmenopausal women, validity of the WHIIRS was assessed by examining its relationship to other measures known to be related to sleep quality. Reliability of the WHIIRS was estimated using a resampling approach; the mean alpha coefficient was .78. Test-retest reliability coefficients were .96 for same-day administration and .66 after a year or more. Correlations of the WHIIRS with the other measures were in the predicted directions. Study 2 used a sample of 459 women and compared the WHIIRS with objective indicators of sleep quality. Results showed that differences in the objective indicators could be detected by the WHIIRS. Findings suggest that a between-group mean difference of approximately 0.50 of a standard deviation on the WHIIRS may be clinically meaningful.     

Factor structure and measurement invariance of the Women's Health Initiative Insomnia Rating Scale

As part of the Women's Health Initiative Study, the 5-item Women's Health Initiative Insomnia Rating Scale (WHIIRS) was developed. This article summarizes the development of the scale through the use of responses from 66,269 postmenopausal women (mean age = 62.07 years, SD = 7.41 years). All women completed a 10-item questionnaire concerning sleep. A novel resampling technique was introduced as part of the data analysis. Principal-axes factor analysis without iteration and rotation to a varimax solution was conducted for 120,000 random samples of 1,000 women each. Use of this strategy led to the development of a scale with a highly stable factor structure. Structural equation modeling revealed no major differences in factor structure across age and race-ethnic groups. WHIIRS norms for race-ethnicity and age subgroups are detailed.     

Jewish identity and intentions to obtain breast cancer screening

This study explored the associations between 2 dimensions of Jewish identity (cultural identification and religious practice) and intentions to perform breast cancer screening. Ashkenazi Jewish women (N = 220) completed surveys as part of an ongoing study of breast cancer risk counseling. Multiple regressions examined the relationships between the 2 identity measures and intention to follow routine recommendations for mammography, intention to perform monthly breast self-exam, and interest in genetic testing for breast cancer susceptibility. Cultural identity positively predicted interest in testing, whereas religious identity was inversely related. Religious identity was a significant predictor of intention to adhere to mammography recommendations. Findings show that culture and religion, although correlated, may have different associations with health attitudes.     

Perceptions of liability for the negligent infliction of emotional distress to a bystander

This study examines factors that are part of the test for whether a plaintiff may recover damages due to the negligent infliction of emotional distress to a bystander. Subjects were 96 eligible jurors from two California counties. They were presented with a case vignette which carried one of the three elements for bystander recovery for emotional distress as outlined in the California case of Dillon v. Legg. Participants were more likely to believe a plaintiff had a right to sue for damages in cases in which (1) there is a close relationship between the bystander and a direct victim, and (2) the bystander is within the zone of physical danger. A plaintiff's sensory and contemporaneous perception of an accident did not significantly influence subjects' judgements.     

Potentiation of acoustic startle behavior in the rat (Rattus norvegicus) at the onset of darkness

In Experiment 1 (N = 8), a 20-ms light pulse, given at various times before a noise burst, inhibited reflex expression with a single trough at a lead time of 70 ms, whereas a dark pulse facilitated the reflex with two peaks at 40 and 160 ms. In Experiment 2 (N = 18) facilitation by dark onset had a single peak, and inhibition by light onset a single trough; thus, the double peak of the dark pulse may result because inhibition from light onset at the end of the dark pulse was briefly impressed on the facilitatory effect of dark onset. In Experiment 3 (N = 12), diazepam (2.5 mg/kg, but not 1 mg/kg) eliminated dark facilitation but not light inhibition. These diazepam data reveal a basic similarity, perhaps identity, of the mechanisms responsible for the effect of dark onset and those producing reflex facilitation by Pavlovian fear conditioning and prolonged background noise, because all are moderated by a GABAergic system.     

The Willingness of Military Members to Seek Help: The Role of Social Involvement and Social Responsibility

Anchored in the social organization theory of action and change, we use data from a large sample of active‐duty Air Force members to examine the direct and indirect influence of social involvement and social responsibility on willingness to seek help in times of need via trust in formal systems and informal supports. Group comparisons are conducted between junior male, junior female, senior male, and senior female service members. The key mediational path in the model for all groups is the connection between social involvement and willingness to seek help via trust in formal systems. These results can inform both unit‐ and community‐level interventions intended to increase the likelihood that active‐duty AF members will seek help in times of need.     

Prevalence,dynamic risk factors and the efficacy of primary interventions for adolescent dating violence: An international review

Adolescent dating violence is a pressing international issue: yet, there have been few attempts to collate the international evidence regarding this phenomenon. This article reviews contemporary evidence from Europe and North America on prevalence, dynamic risk factors, and the efficacy of intervention programs for adolescent dating violence. Prevalence findings suggest that victimization rates are comparable across Europe and North America. Although individual studies report differing prevalences, the overall hierarchy of violence types – in which psychological/emotional violence is most and sexual violence least prevalent – is consistent across almost all investigations. Four dynamic risk factors for perpetration are identified: peer influence, substance use, psychological adjustment and competencies, and attitudes towards violence. Peer influences and attitudes towards violence appear to be the most extensively evidenced factors in the literature. Nine existing intervention programs are identified, all located within North America. Intervention results are mixed, with some evaluations reporting significant long-term benefits while others report positive intervention effects dissipate throughout follow-up. Tentative analysis suggests that programs focused on behavioral change may elicit sustainable effects more readily. However, this is difficult to ascertain with no data on program repetitions and variations across intervention pedagogy and sample. Concerns with existing research and interventions and possible future directions are discussed.     

Desistance from intimate partner violence: A critical review

Evidence suggests that a significant proportion of men who have been violent towards their partners desist from such violent behaviors; yet, research examining desistance from intimate partner violence (IPV) is limited. This omission is surprising given that an understanding of desistance processes is required to inform evidence-based IPV interventions. In this critical review of the empirical literature, eligible studies included 15 publications, identified through electronic databases and hand searches of bibliographies that directly investigated the cessation of physical violence against an intimate partner, by heterosexual men. No single theory was identified that explains desistance from IPV. However, empirical studies reveal that the severity and frequency of violence is associated with desistance, with those using moderate levels of violence being more likely to desist than those who engage in severe violence. Typology research suggests differences in individual characteristics (e.g., low psychopathology and impulsivity) can distinguish desisters from persisters. In addition, the nature of the dyad within which the violence occurs is also influential in desistance processes. It is concluded that much more research is needed to inform practice and in particular to examine the role of protective factors in mitigating risk and enabling individuals to desist from IPV.