Gender differences in Russian adolescent mental health from 1999 to 2021.

This study examined secular trends in Russian adolescent mental health, the specific effects of the COVID-19 pandemic, and associations with country-level indicators. A cross-sectional survey of 12,882 adolescents aged 11-18 years was carried out between 1999 and 2021 using the Strengths and Difficulties Questionnaire. The results showed an incline in girls' internalizing problems with a two-fold increase in the gender gap.

Fast changes in default and control network activity underlying intraindividual response time variability in childhood: Does age and sex matter?

Intraindividual response time variability (RTV) is considered as a general marker of neurological health. In adults, the central executive and salience networks (task-positive networks, TPN) and the default mode network (DMN) are critical for RTV. Given that RTV decreases with growing up, and that boys are likely somewhat behind girls with respect to the network development, we aimed to clarify age and sex effects.

The structure of adolescent mental health problems: The role of effortful control and school safety.

Introduction: Adolescent mental health problems are widespread; however, there are still very few data on risk and protective factors for general and specific psychopathology. This study examined the structure of common mental health problems in Russian adolescents and the associations of temperamental effortful control and perceived school safety to the latent factors of adolescent mental health, taking age and gender into account.

Methods: Data were collected on 1850 adolescents (53% female) aged 12-18 using the self-report Eurasian Child Mental Health Study questionnaire, the Strengths and Difficulties Questionnaire, and the abbreviated Effortful Control scale of the Early Adolescent Temperament Questionnaire-Revised.

Relations between bedtime parenting behaviors and temperament across 14 cultures.

Objectives: The present study examined parental sleep-supporting practices during toddlerhood in relation to temperament across 14 cultures. We hypothesized that passive sleep-supporting techniques (e.g.

Russian adolescent mental health in 2002, 2015 and during the COVID-19 pandemic in 2021.

Background: Adolescent mental health is a global concern, however, time trends and the COVID-19-related restrictions vary across countries. This study examined changes in adolescent mental health and substance use in Russia between 2002, 2015 and during the pandemic in 2021.

Methods: Cross-sectional school-based surveys of 12- to 18-year-olds were carried out in a Siberian city in 2002 (N = 713), 2015 (N = 840) and 2021 (N = 721) using the Strengths and Difficulties Questionnaire, data on tobacco, alcohol and drug use and socio-demographic information.

Feeling Unsafe at School Among Adolescents in 13 Asian and European Countries: Occurrence and Associated Factors.

Background: Research on perceived school safety has been largely limited to studies conducted in Western countries and there has been a lack of large-scale cross-national studies on the topic.

Methods: The present study examined the occurrence of adolescents who felt unsafe at school and the associated factors of perceived school safety in 13 Asian and European countries. The data were based on 21,688 adolescents aged 13-15 (11,028 girls, 10,660 boys) who completed self-administered surveys between 2011 and 2017.

Associations of Hyperactivity and Inattention Scores with Theta and Beta Oscillatory Dynamics of EEG in Stop-Signal Task in Healthy Children 7-10 Years Old.

In the current study, we aimed to investigate the associations between the natural variability in hyperactivity and inattention scores, as well as their combination with EEG oscillatory responses in the Stop-Signal task in a sample of healthy children. During performance, the Stop-Signal task EEGs were recorded in 94 Caucasian children (40 girls) from 7 to 10 years. Hyperactivity/inattention and inattention scores positively correlated with RT variability.

Interactions Between Child Personality and Parenting in Relation to Child Well-Being: Support for Diathesis-Stress and Differential Susceptibility Patterns.

It is well-recognized that the individual characteristics of children moderate the effects of developmental conditions on the well-being of a child. The majority of interactions follow a diathesis-stress pattern; there is also evidence for differential susceptibility and vantage sensitivity models. The present study aimed to examine interactions between parenting and child personality in relation to the well-being of a Russian child and to evaluate the models for moderated relationships.

Victimization by traditional bullying and cyberbullying and the combination of these among adolescents in 13 European and Asian countries.

There has been a lack of studies on bullying in non-western low-income and middle-income countries. This study reported the prevalence of traditional victimization, cybervictimization, and the combination of these, in 13 European and Asian countries, and explored how psychiatric symptoms were associated with victimization. The data for this cross-sectional, school-based study of 21,688 adolescents aged 13-15 were collected from 2011 to 2017.

Age and gender differences in personality traits from early childhood through adolescence.

Objective: Most research on personality development has employed self-report questionnaires and concerned individuals older than 10 years. This is the first study to examine mean-level age differences in personality traits from early childhood to late adolescence in the non-Western cultural context.

Method: Personality was measured in two community samples of parent reports of 2-18-year-old children (N = 4,330) and self-reports of 10-19-year-old adolescents (N = 4,663) from Russia by the Inventory of Child Individual Differences-Short version (ICID-S) at the three levels of the hierarchy, the two higher order traits, the Big Five, and lower order traits.

Default mode network connections supporting intra-individual variability in typically developing primary school children: An EEG study.

Intraindividual variability in response time (RT) provides information about attention abilities beyond accuracy and mean RT. It could be an endophenotype for a wide range of clinical disorders and a general marker of neurological health or maladaptation. The default mode network (DMN) and the central executive and the salience networks (CEN + SN) support response stability in adults.

Stroop-like animal size test: Links with child effortful control, personality and problem behavior.

This study examined children's performance on the Stroop-like animal size test and its relations to parent-reported temperamental effortful control, personality, and common emotional and behavioral problems in a Russian sample of 5-12-year-olds (N = 202). The animal size test demonstrated a Stroop-like effect for accuracy and response time (RT) in both genders and across all ages. Children's performance on the animal size test considerably improved with age such that older children performed more accurately, were faster and their responses were less variable than younger children's responses.

Cross-Frequency Coupling in Developmental Perspective.

It is generally assumed that different electroencephalogram (EEG) frequency bands are somehow related to different computational modes in the brain. Integration of these computational modes is reflected in the phenomenon of cross-frequency coupling (CFC). On slow temporal scales, CFC may reflect trait-like properties, which posits a question of its developmental trends.

Relations of child effortful control to personality, well-being and parenting.

This study examined effortful control and its relations to personality, parenting and well-being in a community sample of Russian preschool children (N = 365, 46% girls) using parent-reported effortful control scale from the very short form of the children's behaviour questionnaire, the inventory of child individual differences-short version, the Alabama parenting questionnaire-preschool revision, the self-reporting questionnaire, and parent and teacher reports on the strengths and difficulties questionnaire. The findings confirmed the four-factor structure of effortful control, including inhibitory control, attentional control, low-intensity pleasure and perceptual sensitivity. Girls demonstrated higher scores than boys on effortful control, perceptual sensitivity, inhibitory control and low-intensity pleasure.

Effortful control and resting state networks: A longitudinal EEG study.

Resting state networks' (RSNs) architecture is well delineated in mature brain, but our understanding of their development remains limited. Particularly, there are few longitudinal studies. Besides, all existing evidence is obtained using functional magnetic resonance imaging (fMRI) and there are no data on electrophysiological correlates of RSN maturation.

The contribution of reinforcement sensitivity to the personality-psychopathology hierarchical structure in childhood and adolescence.

This study examined the contribution of reinforcement sensitivity to the hierarchical structure of child personality and common psychopathology in community samples of parent reports of children aged 2-18 (N = 968) and self-reports of adolescents aged 10-18 (N = 1,543) using the Inventory of Child Individual Differences-Short version (ICID-S), the Strengths and Difficulties Questionnaire (SDQ), and the Sensitivity to Punishment and Sensitivity to Reward Questionnaire (SPSRQ). A joint higher-order factor analysis of the ICID-S and SDQ scales suggested a 4-factor solution; congruence coefficients indicated replicability of the factors across the 2 samples at all levels of the personality-psychopathology hierarchy. The canonical correlation analyses indicated that reinforcement sensitivity and personality-psychopathology dimensions shared much of their variance.

The hierarchical structure of childhood personality in five countries: continuity from early childhood to early adolescence.

Childhood personality is a rapidly growing area of investigation within individual differences research. One understudied topic is the universality of the hierarchical structure of childhood personality. In the present investigation, parents rated the personality characteristics of 3,751 children from 5 countries and 4 age groups.

Cross-national differences in questionnaires do not necessarily reflect comparable differences in disorder prevalence.

Purpose: To examine whether the widely used Strengths and Difficulties Questionnaire (SDQ) can validly be used to compare the prevalence of child mental health problems cross nationally.

Methods: We used data on 29,225 5- to 16-year olds in eight population-based studies from seven countries: Bangladesh, Brazil, Britain, India, Norway, Russia and Yemen. Parents completed the SDQ in all eight studies, teachers in seven studies and youth in five studies.

Cross-informant symptoms from CBCL, TRF, and YSR: trait and method variance in a normative sample of Russian youths.

A large community-based sample of Russian youths (n = 841, age M = 13.17 years, SD = 2.51) was assessed with the Child Behavior Checklist (mothers and fathers separately), Teacher's Report Form, and Youth Self-Report.

Infant temperament in Russia, United States of America, and Israel: differences and similarities between Russian-speaking families.

The present study addresses cross-cultural differences between infants born to families of Russian immigrants in USA and Israel, as well as Russian families residing in Russia, with the emphasis on evaluating the impact of immigration and acculturation. Community samples of primary caregivers of infants between 3 and 12 months of age were recruited and asked to complete temperament (IBQ-R) and acculturation (SAM) questionnaires. Results support our hypotheses that cultural influences contribute to shaping infant temperament, in so far as differences between the samples of infants were found in Perceptual Sensitivity and Low Intensity Pleasure domains of temperament.