Post-traumatic stress symptoms of children and adolescents exposed to the 2008 Wenchuan Earthquake: A longitudinal study of 5-HTTLPR genotype main effects and gene–environment interactions

Experiencing disasters causes severe mental disorders, among which post-traumatic stress disorder (PTSD) is the most common. We conducted a longitudinal study to examine the effect of 5-hydroxyl tryptamine transporter gene-linked polymorphic region (5-HTTLPR) genotype on child and adolescent PTSD symptom course after the 2008 Wenchuan Earthquake. We genotyped 963 participants who personally experienced the earthquake. PTSD symptoms were measured by University of California, Los Angeles PTSD reaction index at 2.5, 3.5, 4.5 and 5.5 years after the earthquake, respectively. Latent growth model was utilised to examine the main effect and gene–environment interaction effect of 5-HTTLPR on PTSD's symptom course. 5-HTTLPR genotype predicted initial PTSD symptom severity (β = 0.108, p = .019) and rates of symptom recovery (β = −0.120, p = .031) between 2.5 and 5.5 years. Compared with L′ allele carriers, those with S′S′ genotype showed higher initial symptom severity but also faster recovery rate. 5-HTTLPR genotype only predicted symptom severity at 2.5 years after the earthquake, after controlling for sex, age, ethnicity and trauma severity (β = 0.108, p = .019). This is the first evidence of the effect of 5-HTTLPR genotype on child and adolescent PTSD symptoms longitudinally, offering a novel perspective on the effect of 5-HTTLPR on PTSD symptom development following trauma exposure.     

Presence of meaning,search for meaning,religiousness, satisfaction with life and depressive symptoms among a diverse Israeli sample

The present study explored the structure and correlates of meaning in life (MIL) among an Israeli sample. The sample consisted of 559 adults. The average age of participants was 48.24 and 61.3% of them were females. Participants provided demographic information and completed measures of MIL, satisfaction with life, and depressive symptoms. The MIL Questionnaire showed a very good fit for the proposed 2-factor model (i.e. presence of meaning, search for meaning) to the data collected from the current sample. Presence of meaning correlated positively with both search for meaning and satisfaction with life, and negatively with depressive symptoms. Search for meaning was positively and weakly tied to satisfaction with life, but was unrelated to depressive symptoms. Religiousness appeared as a significant moderator between the two meaning factors, and between them and life satisfaction. Specifically, as religiousness became stronger: (a) the link between presence of meaning and search for meaning became weaker; (b) the link between presence of meaning and life satisfaction became stronger and (c) the link between search for meaning and life satisfaction became weaker. The findings suggest that there are differential implications of presence search for meaning on the health and well-being, and the important role religiousness plays in this regard.     

How are social-emotional and behavioral competences and problems at age 1 year associated with infant motor development? A general population study

Based on limitations in previous research evidence, we concluded that more research is needed for deeper understanding of how social-emotional and behavioral (SEB) outcomes among infant-toddler-aged children in the general population are associated with early motor development. In this study, we investigated associations between early competencies and problems, as measured by the Brief Infant-Toddler Social and Emotional Assessment (BITSEA), and the timing of achievement of the main gross and fine motor milestones usually attained during the first year of life in a general population context. The study sample consisted of 515 infants (mean age 12.9 [SD 0.9] months) and their parents (514 mothers, 434 fathers), who were recruited in child health centers in Northern Finland. The infants were divided into two groups, based on their BITSEA screen status, and motor milestone achievement ages were compared across BITSEA screen status No Concern and Of-Concern infants. An Of-Concern screen status on the maternal and paternal Competence scale and Autism spectrum disorder (ASD) item cluster was associated with later infant achievement ages for gross motor milestones. By contrast, infants who were screened to be in the Of-Concern range on the maternal Problem scale achieved gross motor milestones earlier than infants with the corresponding No Concern screen status. No significant associations were found between the paternal Problem scale screen status and infant motor development. In further analyses, the strongest associations were found between an Of-Concern screen status on the paternal Competence scale and ASD item cluster and infant motor development. The findings indicate that the inclusion of infant motor developmental information may assist early identification and the clinical interpretation of parental reports of early SEB problems. Clinical implications of the current findings are discussed in the paper.     

Exploring predictors of change in behavioral problems over a 1-year period in preterm born preschoolers

ObjectiveAlthough predictors of the prevalence of behavioral problems in preterm-born children have been frequently studied, predictors of behavioral change in these children remain unknown. Therefore, in this study we explore predictors of short-term changes in problem behavior in preterm-born preschoolers, an age period characterized by rapid behavioral change.MethodTwo- to 5-year-old children born with a gestational age <32 weeks and/or birth weight <1500 g were eligible, because of their high risk for behavioral problems. Following screening, 59 children with a t-score ≥60 on either the internal, external or total problem scale of the Child Behavior Checklist were included in the study. Linear mixed modeling was used to investigate predictors of change in behavior over a 1-year period.ResultsHigher levels of parenting stress, parent perceived child vulnerability, and parental hostility towards the child and lower educational levels of the mother significantly predicted increases in externalizing behavior. The higher the age of the child, the more internalizing problems decreased.ConclusionsParenting stress, parent perceived child vulnerability and parental hostility towards the child were the only modifiable predictors of increases in externalizing behavior, whilst no modifiable predictors of internalizing behavior were found. There may be a reciprocal interaction between stress in parents and child externalizing problems. Furthermore, stress and worries may directly influence parents’ reports on behavioral measures, because it could cause them to be concerned by behavior otherwise perceived as normal. Therefore, future interventions for parents of preterm-born children should primarily address parental stress and concerns regarding their child.     

Sensation seeking as a predictor of psychopathology in Danish soldiers deployed to Afghanistan

Identifying methods that enable prediction of psychopathology that results from military service is crucial for individual and mission readiness, and for postdeployment mental health. In the present study, we investigate the relationship between sensation seeking (SS) and posttraumatic stress disorder (PTSD) and between SS and depression. Data from 743 Danish soldiers deployed to Afghanistan in 2009 were collected 6 times: before deployment, during deployment, 1–3 weeks after homecoming, 2 months after homecoming, 7 months after homecoming, and 2.5 years after homecoming. In this study, we did not find a relationship between SS and PTSD, or between SS and depression. The present study does not support previous findings that link SS with psychopathology. The structural environment in the military setting, the extent of exposure and type of stressful situations may play a moderating role. More extreme environments, such as imprisonment and torture, may favor different expressions of SS. Further research should include other factors such as context and the extent and type of traumatic exposure in relation to SS.     

Vigor predicting health outcomes in a high risk occupational context

Feelings of vigor are associated with positive consequences in the work place but these relationships have not yet been assessed in a high-risk occupational context. The current study assessed the relationships between feelings of vigor on physical health symptoms, functional impairment, and depression symptoms among U.S. service members who recently returned from a combat deployment. U.S. service members were asked to complete questionnaires at 2 time points. Significant positive correlations were found between combat experiences and the 3 outcomes. Significant negative correlations were found for feelings of vigor and each outcome. Regression analyses indicated a significant effect for feelings of vigor such that higher feelings of vigor at Time 1 predicted better physical health and fewer depression symptoms at Time 2. There was no significant effect for functional impairment. Results demonstrate the potential importance of maintaining or improving feelings of vigor throughout the work day, especially for those with high risk occupations.     

Minority status stress,racial centrality,and racial socialization as predictors of Black Americans’ preference for counselor race in a United States sample

In the United States, Black Americans’ counseling experiences are associated with concerns that are unique to their racialized status. Understanding the range of cultural factors that influence Black Americans’ preferences in the context of counseling remains an important topic in marketing and providing high-quality counseling services to this population. Thus, the purpose of this study was to examine the role of racial centrality, affirming socialization around race, and minority status stress on counselor racial preference among Black college students (N = 139) in the United States. Results from a hierarchical multiple regression revealed that racial centrality and minority stress independently predicted preference for a racially similar counselor in this sample of respondents. A significant interaction between minority stress and affirming racial socialization revealed that the effect of minority status stress on counselor racial preference was attenuated at high levels of affirming racial socialization. Findings are discussed in the context of racial identity and racial socialization theories, with emphasis on implications for counseling practice and clinical training.     

Does psychosocial stress exacerbate avoidant responses to cancer information in those who are afraid of cancer? A population-based survey among older adults in England

Objective: Communication of cancer information is an important element of cancer control, but cancer fear may lead to information avoidance, especially when coping is low. We examined the association between cancer fear and cancer information avoidance, and tested whether this was exacerbated by psychosocial stress.

Design: Cross-sectional survey of 1258 population-based adults (58–70 years) in England.

Main outcome measures: Cancer fear (intensity and frequency), perceived psychosocial stress and cancer information avoidance. Control variables were age, gender, ethnicity, marital status and education.

Results: A quarter (24%) of respondents avoided cancer information. Ordinal logistic regression analyses showed main effects of psychosocial stress (OR = 1.17, 95% CI 1.07–1.29) and cancer fear: cancer information avoidance was lowest in those with no cancer fear (13%), followed by those with moderate (24%; OR = 2.15, 95% CI: 1.49–3.12), and high cancer fear (35%; OR = 3.90, 95% CI: 2.65–5.73). In the adjusted model, the interaction between cancer fear and stress was significant (OR = 1.14, 95% CI 1.004–1.29, p < .05): 40% of those with high fear/high stress avoided cancer information compared with 29% with high fear/low stress.

Conclusion: Cancer fear and psychosocial stress interact to produce disengagement with cancer-related information, highlighting the importance of affective processes to cancer control efforts.     

Can self-affirmation exacerbate adverse reactions to stress under certain conditions?

Objective: Self-affirmation has repeatedly been shown to reduce adverse psychological and physiological responses to stress. However, it is plausible that self-affirmation could exacerbate negative reactions to stress under certain conditions. The current research explored whether self-affirmation would increase negative psychological responses to a stressor occurring in a central life domain characterised by low levels of control.

Design: Female participants (Study 1 N = 132; Study 2 N = 141) completed baseline measures of anxiety and mood. They were then randomly allocated to complete a self-affirmation or control task, before reading a narrative documenting a stressful birth and imagining themselves in the place of the woman giving birth. After completing this task, participants again reported their levels of anxiety and positive mood.

Main outcome measures: Anxiety and positive mood assessed at follow-up.

Results: Study 1 demonstrated that self-affirmed women experienced increased anxiety and less positive mood at follow-up, compared both to baseline and to women in the control condition. Study 2 revealed that the effect of self-affirmation on outcomes was moderated by fear of childbirth.

Conclusion: These results provide preliminary evidence that self-affirmation may worsen negative responses to stressors under certain conditions and for certain individuals.     

The impact of depression and PTSD symptom severity on trauma memory

Posttraumatic stress disorder (PTSD) and depression frequently co-occur following a traumatic event. Differences in the processing of autobiographical memory have been observed in both disorders in the form of overgeneralised memories and negative intrusive memories. The current study examined how symptoms of PTSD and depression influence the phenomenological characteristics of trauma memories. Undergraduate students who had experienced a traumatic event (n?=?696) completed questionnaires online including measures of PTSD and depressive symptom severity. They rated their trauma memory on several phenomenological characteristics using the Memory Experiences Questionnaire [Sutin, A. R., &; Robins, R. W. (2007). Phenomenology of autobiographical memories: The memory experiences questionnaire. Memory.]. Moderated multiple regression was used to examine how PTSD and depressive symptom severity related to each phenomenological characteristic. Symptoms of PTSD and depression were related separately and uniquely to the phenomenological characteristics of the trauma memory. PTSD severity predicted trauma memories that were more negative, contained higher sensory detail, and were more vivid. In contrast, depressive symptom severity predicted trauma memories that were less accessible and less coherent. These findings suggest that depressive and PTSD symptomatology affect traumatic memory differently and support a distinction between these two disorders.