Developmental cognitive neuroscience using latent change score models: A tutorial and applications

Developmental trajectories of externalizing and internalizing linked to harsh parenting: The role of ethnicity and socioeconomic status

Past studies that examined externalizing and internalizing symptoms in separate samples have found different trajectories associated with harsh parenting. The present study uses a complex set of longitudinal modeling to investigate the developmental trajectories of internalizing and externalizing symptoms associated with harsh parenting. We also explore the moderation of socioeconomic status and ethnicity by testing differences between income and racial groups. Using bivariate and multigroup latent change score modeling, we analyzed 12,909 participants from the Millennium Cohort Study. Results of the bivariate latent change score model showed that harsh parenting had a bidirectional association with externalizing symptoms but only a unidirectional association with internalizing symptoms. A further analysis using multi-group modeling showed that the association between harsh parenting and externalizing and internalizing symptoms differed across ethnic backgrounds but much less on socioeconomic status. Specifically, initial levels of harsh parenting predicted an increase in externalizing symptoms among White participants but not in non-White participants, and these ethnic differences cut across socioeconomic status classifications in a test of the interaction of ethnicity and socioeconomic status. Taken together, our findings suggest that the prevailing cultural norms surrounding harsh parenting may affect the degree to which it negatively impacts children's mental health.

Multimodal Brain Age Indicators of Internalizing Problems in Early Adolescence: A Longitudinal Investigation

BACKGROUND

Adolescence is a time of increased risk for the onset of internalizing problems, particularly in females. However, how individual differences in brain maturation are related to the increased vulnerability for internalizing problems in adolescence remains poorly understood due to a scarcity of longitudinal studies.

METHODS

Using ABCD (Adolescent Brain Cognitive Development) Study data, we examined longitudinal associations between multimodal brain age and youth internalizing problems. Brain age models were trained, validated, and tested independently on T1-weighted imaging (n = 9523), diffusion tensor imaging (n = 8834), and resting-state functional magnetic resonance imaging (n = 8233) data at baseline (meanage = 9.9 years) and 2-year follow-up (meanage = 11.9 years). Self-reported internalizing problems were measured at 3-year follow-up (meanage = 12.9 years) using the Brief Problem Monitor.

RESULTS

Latent change score models demonstrated that although brain age gap (BAG) at baseline was not related to later internalizing problems, an increase in BAG between time points was positively associated with internalizing problems at 3-year follow-up in females but not males. This association between an increasing BAG and higher internalizing problems was observed in the T1-weighted imaging (β = 0.067, SE = 0.050, false discovery rate [FDR]-corrected p = .020) and resting-state functional magnetic resonance imaging (β = 0.090, SE = 0.025, pFDR = .007) models but not diffusion tensor imaging (β = -0.002, SE = 0.053, pFDR = .932) and remained significant when accounting for earlier internalizing problems.

CONCLUSIONS

A greater increase in BAG in early adolescence may reflect the heightened vulnerability shown by female youth to internalizing problems. Longitudinal research is necessary to understand whether this increasing BAG signifies accelerated brain development and its relationship to the trajectory of internalizing problems throughout adolescence.

Psychosocial and Glycemic Benefits for Insulin-Using Adults With Type 2 Diabetes After Six Months of Pump Therapy: A Quasi-Experimental Approach

BACKGROUND

Continuous subcutaneous insulin infusion (CSII) use in adults with type 1 diabetes offers psychosocial and clinical benefits, but little is known about its impact on such outcomes in the type 2 diabetes (T2D) population. To address this gap, we conducted a quasi-experimental prospective study to assess psychosocial, glycemic, and behavioral changes over six months in T2D adults on multiple daily injections (MDI) who were interested in starting Omnipod DASH, comparing those who did versus did not start on it.

METHODS

In total, 458 adults with T2D completed baseline questionnaires assessing psychosocial dimensions (eg, diabetes distress), clinical metrics (eg, HbA1c [glycosylated hemoglobin]), and behavioral measures (eg, missed mealtime boluses). Six months later, 220 (48.0%) completed the same questionnaire again. To examine differences in outcomes over time between those who began CSII (n = 176) versus those who remained on MDI (n = 44), a latent change score approach was used.

RESULTS

The CSII users reported greater gains than MDI users on all major psychosocial metrics, including overall well-being (P < .001) diabetes distress (P < .001), perceived T2D impact on quality of life (P = .003), and hypoglycemic worries and concerns (P < .001). The CSII users similarly reported a larger decline in HbA1c than MDI users (P < .05) and greater declines in two critical self-care behaviors: number of missed mealtime boluses (P < .001) and number of days of perceived overeating (P = .001).

CONCLUSIONS

The introduction of CSII (Omnipod DASH) in T2D adults can contribute to significant psychosocial, glycemic, and behavioral benefits, indicating that broader use of CSII in the T2D population may be of value.

The role of maltreatment risk in the interplay between maternal and child's empathy over time

Parental empathy is associated with risk of child maltreatment which is, in turn, associated with children's negative social outcomes. Yet familial relationships are not unidirectional. We aimed to examine the interplay between maternal and child empathy over two time points, two years apart, and how these are moderated by abuse risk. Participants were N = 250 mothers of children aged 4-10 years (48.4% girls). Bivariate change score models were computed to examine the relationship between changes in maternal and child's empathy. Maternal empathic concern predicted an increase in her child's cognitive empathy two years later. Interestingly, the child's cognitive empathy predicted a decrease in maternal personal-distress two years later, but only for high abuse-risk mothers. Additionally, maternal empathic concern predicted an increase in child's cognitive empathy for high abuse-risk mothers. The current study highlights the dynamic relationship between maternal empathy, maltreatment risk, and child's empathy.

Do Targeted Interventions Diminish Victimization? Testing the Short- and Longer-term Effectiveness of Condemning, Empathy-Raising, and Combined Approaches

Given the detrimental effects of school bullying, it is essential that teachers are provided with effective guidelines on how to implement targeted interventions if a case of bullying comes to their attention. Yet to date, most research has focused on how bullying can be prevented, rather than how it should be intervened upon. To address this gap, the current study compared the short- and longer-term development of victimization of students whose bullies were enrolled in a targeted intervention, and compared three approaches taken in such interventions when talking to perpetrators: (1) promoting empathy for victims among bullies, (2) explicitly condemning bullying behaviors, and (3) a combination of these approaches. The sample consisted of n = 274 victims from primary and secondary schools (56.6% female, Mage = 11.95, SD = 1.89). School personnel used a mobile application KiVappi to document the steps they took when implementing targeted interventions on bullying perpetrators of these victims (including a follow up meeting in which victims were asked about the short-term effectiveness of the intervention). Most cases were handled with an empathy-raising approach (n = 117), followed by the condemning (n = 113) and combined (n = 44) approach. Targeted intervention data was matched to survey data collected to examine longer-term changes in self-reported victimization. The results indicate that the success rates of targeted interventions on the short-term were promising: 88.2% of the victims indicated that the victimization had decreased or ceased, and the combined approach seemed to be the "best bet". In the longer term, victims whose bullies were enrolled in a targeted intervention were equally stable in self-reported victimization as the control group - irrespective of the approach taken in the targeted intervention. Thus, despite potential short-term successes, targeted interventions may not be enough to help victims of bullying escape their plight in the longer term.

Linked emergence of racial disparities in mental health and epigenetic biological aging across childhood and adolescence

Marginalization due to structural racism may confer an increased risk for aging-related diseases - in part - via effects on people's mental health. Here we leverage a prospective birth cohort study to examine whether the emergence of racial disparities in mental health and DNA-methylation measures of biological aging (i.e., DunedinPACE, GrimAge Acceleration, PhenoAge Acceleration) are linked across childhood and adolescence. We further consider to what extent racial disparities are statistically accounted for by perinatal and postnatal factors in preregistered analyses of 4898 participants from the Future of Families & Child Wellbeing Study, of which 2039 had repeated saliva DNA methylation at ages 9 and 15 years. We find that racially marginalized children had higher levels of externalizing and internalizing behaviors and diverging longitudinal internalizing slopes. Black compared to White identifying children, children living in more racially segregated neighborhoods, and racially marginalized children more affected by colorism tended to have higher age-9 levels of biological aging and more biological age acceleration over adolescence. Notably, longitudinal increases in internalizing and externalizing behavior were correlated with increases in biological aging. While racial and ethnic disparities in mental health were largely statistically accounted for by socioeconomic variables, differences in biological aging were often still visible after including potential mediating variables. These findings underscore the urgency for future research to consider biological aging processes from early life and collect more comprehensive measures of structural racism in developmental cohorts. Programs dedicated to advancing racial health equity must address the psychological and physical effects of structural racism on children and adolescents.

Mapping Dysregulation: Prenatal Predictors and Developmental Trajectories of Multiple Regulatory Problems in Early Childhood

Regulatory problems, defined as excessive crying, sleeping and feeding problems, as well as pronounced sensory sensitivity, pose a significant source of worry and exhaustion for parents. In this study, we investigate the evolvement of multiple regulatory problems up to 3 years of age. We ask whether a range of maternal prenatal risk factors, including poor mental health, substance use, and sociodemographic risks, predict developmental trajectory in dysregulation from 18 months to 3 years. The sample comprises 748 children and their mothers taking part in the prospective longitudinal community-based study Little in Norway. Utilizing latent change score modelling, we found that prenatal risk factors predicted an increase in dysregulation from 18 months to 3 years (β = 0.208, p <.001). This association was moderated by child sex, being stronger for boys (β = 0.229, p <.05) than for girls (β = 0.151, p <.05). A more fine-grained analysis of subscales showed that sensory sensitivity, eating problems and negative emotionality contributed to these effects, whereas sleeping problems were unrelated (p >.05). Results suggest that the association between early risk exposure and child dysregulation may unfold gradually over time. Those born into families with a higher load of prenatal risks are more vulnerable to dysregulation problems extending, or even increasing, into the preschool years.

Mixed-gender anxiety and gender-based relationship efficacy: A cross-lagged study of single-sex versus coeducational schooling bridging high school graduation

Feeling comfortable interacting with someone of another gender and having competence in cross-gender relationships are important for adolescents' and young adults' psychosocial development. However, extended experience in gender-segregated schooling environments may reduce opportunities to develop these competencies. To test this, comparisons between single-sex (SS) and coeducational (CE) school students' mixed-gender anxiety and gender-based relationship efficacy were conducted. Prior research on social outcomes of SS schooling were limited by the use of single-item surveys, cross-sectional designs, and inadequate control for confounding demographic differences between SS and CE students. We addressed these limitations by using (a) multi-item measures, (b) a longitudinal design that included two waves of data collection bridging high-school graduation, and (c) propensity-score matching. Students in Hong Kong were first surveyed in their final year of high school (N = 667) and then again roughly 1.5 years post-graduation (N = 463). SS students reported lower other-gender relationship efficacy than CE students at both times (β = -0.21) but no difference in mixed-gender anxiety. Mixed-gender anxiety increased in both groups over time (β = 0.85 to 1.07). Importantly, students who initially reported lower other-gender relationship efficacy later reported more mixed-gender anxiety (β = -0.15 to -0.19). Additionally, cross-lagged effects showed school type indirectly predicted mixed-gender anxiety through relationship efficacy (β = 0.03). These associations appeared even after controlling for general social anxiety and were evident across gender and sexual orientation groups. The study suggests potentially negative effects of SS schooling on mixed-gender interpersonal outcomes and demonstrates the value of propensity score matching and longitudinal designs that can show ways that SS and CE students develop across critical life transitions. Results have implications for peer-exposure and self-efficacy theories and for designing school-based programs to help students build greater cross-gender interpersonal competency.

Longitudinal analysis of the ABCD® study

The Adolescent Brain Cognitive Development® (ABCD) Study provides a unique opportunity to investigate developmental processes in a large, diverse cohort of youths, aged approximately 9-10 at baseline and assessed annually for 10 years. Given the size and complexity of the ABCD Study, researchers analyzing its data will encounter a myriad of methodological and analytical considerations. This review provides an examination of key concepts and techniques related to longitudinal analyses of the ABCD Study data, including: (1) characterization of the factors associated with variation in developmental trajectories; (2) assessment of how level and timing of exposures may impact subsequent development; (3) quantification of how variation in developmental domains may be associated with outcomes, including mediation models and reciprocal relationships. We emphasize the importance of selecting appropriate statistical models to address these research questions. By presenting the advantages and potential challenges of longitudinal analyses in the ABCD Study, this review seeks to equip researchers with foundational knowledge and tools to make informed decisions as they navigate and effectively analyze and interpret the multi-dimensional longitudinal data currently available.

Mental arithmetic skill development in primary school: The importance of number processing abilities and general cognitive abilities

The purpose of this study was to pinpoint which mixture of cognitive abilities and number abilities underlies young children's early mental arithmetic learning (i.e., skill development) and to examine to what extent this mixture is akin to the mixture underlying children's early arithmetic performance. A total of 265 children were assessed on counting knowledge, symbolic magnitude comparison, number line estimation, logical reasoning, verbal working memory, spatial processing, phonological processing, and general processing speed. One year later in first grade, the children's mental arithmetic ability was assessed, and it was then reassessed in second grade. A latent change score model showed that arithmetic performance was supported by counting knowledge, number line estimation, logical reasoning, spatial processing, phonological processing, and general processing speed, whereas arithmetic development was only supported by verbal working memory. These results demonstrate that the mixture of abilities underlying arithmetic development and arithmetic performance are rather different. Mental arithmetic performance in Grade 1 is equally dependent on a combination of both number abilities and cognitive abilities, whereas mental arithmetic development between first grade and second grade is only supported by one cognitive ability, verbal working memory.

A longitudinal neuroimaging study of adolescent girls' mentalizing and perspective-taking tendencies

Research in developmental psychology suggests that self-concept formation and mentalizing capacities, along with their neural foundations, show significant developmental change during adolescence. Perspective-taking tendencies are also believed to increase in adolescence, supporting the refinement of prosocial behavior and the demands of increasingly complex social relationships. To explore the development of, and relationship between, these processes in adolescence, early adolescent girls (N = 172) completed a measure of perspective-taking tendencies and a self-evaluation fMRI task at two waves, approximately 18 months apart (mean ages = 11.62 and 13.20, respectively). In line with our hypothesis, perspective-taking tendencies were positively associated with age. Greater perspective-taking tendencies were also associated with a more prosocial, and less antisocial, self-concept. In addition, dmPFC activity increased with age, but this did not survive correction for multiple comparisons across all mentalizing regions. Post hoc analyses also showed that an increase in perspective-taking tendencies across waves was significantly associated with activity in parts of the precuneus at wave 2. Finally, while we did not observe cross-variable coupling, our Bivariate Latent Change Score model showed that lower perspective-taking tendencies at wave 1 were associated with greater latent change in this variable (and the same was true for mean activity in mentalizing brain regions).

Childhood Obesity Body Mass Index and Gut Microbiome: A Cluster Randomized Controlled Pilot Feasibility Study

Background: Prebiotic fiber has been examined as a way to foster gut bacteria less associated with obesity. Tests of prebiotic fiber in reducing obesity have occurred mainly in animals, adults, and Caucasians when the highest obesity rates are in African American and Latinx youth. Response to prebiotic fiber is determined by the pre-existing intestinal microbiota. The type of microbiota varies based on diet and physical activity (PA), so it is important to examine acceptability and response to prebiotic fiber in those most at risk for obesity. Methods: This cluster randomized controlled feasibility trial included an online program designed to improve diet and PA along with administration of prebiotic fiber for 12 weeks in 123 4th and 5th grade students where 98% were eligible for free or reduced fee lunch. Of these 56% were male; 71% Latinx; 15% African American; and 14% Other. Results: A decrease in body fat (BF) was associated with higher pre-test BF. Lower BMI was associated with a decrease in fecal Tenericutes and an increase in Actinobacteria. Conclusion: Prebiotic fiber was evaluated in additional studies. Determining those most responsive to prebiotic fiber can also permit individual recommendations for greater inclusion in usual diet choices.

What to think or how to think - is symptom reduction in posttraumatic symptomatology associated with change in posttraumatic cognitions or perseverative thinking? A latent change score model approach

OBJECTIVE

Patients with posttraumatic stress disorder (PTSD) report changes in what they think of the world and themselves, referred to as posttraumatic cognitions, and changes in how they think, reflected in increased perseverative thinking. We investigated whether pre-post therapy changes in the two aspects of thinking were associated with pre-post therapy changes in posttraumatic symptom severity.

METHOD

219 d clinic patients with posttraumatic stress symptoms received trauma-focused psychotherapy with cognitive behavioral and metacognitive elements. The posttraumatic cognitions inventory (PTCI), the perseverative thinking questionnaire (PTQ), and the Davidson trauma scale (DTS) were applied at two occasions, pre- and post-therapy. Using latent change score models, we investigated whether change in PTCI and change in PTQ were associated with change in DTS and its subscales. We then compared the predictive value of PTQ and PTCI in joint models.

RESULTS

When jointly modeled, change in overall DTS score was associated with change in both PTCI and PTQ. Concerning DTS subscales, reexperiencing and avoidance were significantly associated with change in PTCI, but not in PTQ.

CONCLUSION

Results indicate that both aspects of cognition may be valuable targets of psychotherapy. A focus on posttraumatic cognitions might be called for in patients with severe reexperiencing and avoidance.

The Joint Development of Self-Regulation and Expressive Language in Preschool Classrooms: Preliminary Evidence from a Low-Income Sample

Self-regulation and expressive language are theorized to develop in tandem, shaped by children's social interactions in context, including interactions with teachers and peers in the preschool classroom. In the present study, we examined reciprocal associations between two components of self-regulation (behavior regulation and emotion regulation) and two components of expressive language skills (expressive vocabulary and narrative language) across two time points during the preschool year. We also explored whether individual children's interactions with teachers and peers moderate these associations. Participants were 767 preschool children (49% female; M = 53 months old; 49% Black, 22% White, 13% Hispanic, 14% multiracial/other) from low-income households. A multivariate latent change score model provided evidence that early self-regulation predicts increases in expressive language; fall emotion regulation predicted increases in narrative language and fall behavior regulation predicted increases in expressive vocabulary. Empirical support was also found for early expressive language predicting increases in self-regulation; fall expressive vocabulary predicted increases in behavior regulation. Moderation analysis indicated that some of these associations depended on individual children's interactions with peers, but not with teachers. Results provide preliminary evidence for the joint development of expressive language and self-regulation in early childhood classrooms.

Probing Puberty as a Source of Developmental Change in Neural Response to Emotional Faces in Early Adolescence

Pubertal development is theorized to shape the brain's response to socio-emotional information in the environment. Large-scale longitudinal studies, such as the Adolescent Brain Cognitive Development (ABCD) study, provide the opportunity to examine the association between pubertal maturation and within-person changes in neural activation to emotional stimuli over time. Leveraging ABCD data (n = 9648), the current study examines the coupling between parent-reported pubertal development and changes in youth's brain response to emotional faces in an emotional n-back task (during functional magnetic resonance imaging) across two timepoints (2 years apart). Bivariate latent change score models were fit to regions of interest canonically involved in face processing (fusiform), emotional/motivational salience (amygdala, nucleus accumbens, orbitofrontal cortex [OFC]), and social cognition (temporoparietal junction [TPJ]) to determine the associations between baseline pubertal status and neural response, and rate of change in either variable across time. Results point to both concurrent and longitudinal associations between pubertal maturation and neural activation to emotional faces in regions involved in processing emotional and social information (amygdala, TPJ, accumbens, OFC) but not basic facial processing (fusiform). These findings highlight pubertal maturation as a potential mechanism for change in neural response to emotional information during the transition from childhood to adolescence.

Inconclusive effects between executive functions and symptoms of psychiatric disorders in random-intercept cross-lagged panel models: a simulated reanalysis and comment on Halse et al. (2022)

Background

In a recent study of Norwegian children (N = 874), Halse et al. used random-intercept cross-lagged panel models (RI-CLPM) and concluded that their findings supported the assumption that deficiencies in executive functions and psychopathology are both a cause and a consequence of the other. However, it is known that RI-CLPM can give biased results.

Methods

We reanalyzed data simulated to resemble the data used by Halse et al. with several complementary models, e.g., latent change score models (LCSM).

Results

The analyzed models indicated contradictory simultaneous increasing and decreasing effects between executive deficits and symptoms of psychopathology.

Conclusion

The present contradictory findings suggested that prospective effects between executive deficits and symptoms of psychopathology may have been spurious rather than truly increasing. Consequently, conclusions by Halse et al. appear to have been premature. It is important for researchers to bear in mind that correlations, including cross-lagged effects in RI-CLPM, do not prove causality. Careful interpretation of RI-CLPM results is of utmost importance in, for example, research in clinical and developmental psychology. We recommend researchers to use, as we did here, triangulation to scrutinize findings from analyses of observational data.

Friendship buffering effects on mental health symptoms before and during the COVID-19 pandemic: A UK longitudinal study of young people with childhood adversity

Young people with childhood adversity (CA) were at increased risk to experience mental health problems during the COVID-19 pandemic. Pre-pandemic research identified high-quality friendship support as a protective factor that can buffer against the emergence of mental health problems in young people with CA. This longitudinal study investigated friendship buffering effects on mental health symptoms before and at three timepoints during the pandemic in 102 young people (aged 16-26) with low to moderate CA. Multilevel analyses revealed a continuous increase in depression symptoms following the outbreak. Friendship quality was perceived as elevated during lockdowns and returned to pre-pandemic baseline levels during reopening. A stress-sensitizing effect of CA on social functioning was evident, as social thinning occurred following the outbreak. Bivariate latent change score modeling revealed that before and during the pandemic, young people with greater friendship quality self-reported lower depression symptoms and vice versa. Furthermore, sequential mediation analysis showed that high-quality friendships before the pandemic buffered depression symptoms during the pandemic through reducing perceived stress. These findings highlight the importance of fostering stable and supportive friendships in young people with CA and suggest that through reducing stress perceptions high-quality friendships can mitigate mental health problems during times of multidimensional stress.

Exploring Reciprocal Associations Between Self-Reported Anxiety and Eating Disorder Symptoms Longitudinally: A Bivariate Latent Change Score Approach

OBJECTIVE

Consistent data support an association between anxiety and eating disorders (EDs), and theoretical models of EDs suggest that anxiety may be involved in the etiology and maintenance of ED symptoms over time. However, the directionality of relations between these variables remains under-characterized, particularly within treatment settings.

METHOD

We used bivariate latent change score models to explore longitudinal associations between anxiety and ED symptoms in a sample of ED patients (N = 548, 93.2% female, Mage = 21.16, 78.8% White, 79.6% Non-Hispanic/Latinx) throughout intensive treatment and at 6- and 12-month follow-up.

RESULTS

Best-fitting models exploring change in each variable independently (i.e., univariate models) suggested that changes in ED and anxiety symptoms decreased over time, but that change was influenced by an individual's symptom severity at the previous timepoint. Models exploring associations between changes in both variables over time (i.e., bivariate latent change score models) suggested the best fit for a model where both anxiety and ED symptoms at one timepoint were associated with later change in the other. Specifically, parameters within these models suggested that higher levels of anxiety were associated with increased subsequent reductions in ED symptoms, whereas elevations in ED symptoms were associated with decreased later reductions in anxiety.

CONCLUSIONS

Our findings suggest that anxiety and ED symptoms are intricately related both within and outside of intensive treatment. Future multi-modal research exploring real-time links between anxiety and ED symptoms throughout treatment is critical to extend this work and inform improvements in targeted, mechanistic interventions for this population.

Developmental interactions between peer victimization and depressive symptoms in adolescents: A latent change score analysis

Peer victimization and depressive symptoms are highly relevant risks during adolescence. Understanding the dynamic patterns of interactions between peer victimization and depressive symptoms as well as gender differences in these variables can improve intervention strategies for adolescents navigating this critical transition period. In the present study, a large sample of Chinese adolescents reported peer victimization and depressive symptoms in four survey waves at six-month intervals. A total of 2534 adolescents (51.9% boys, M = 12.98 ± 0.60 years) were included in the latent change score (LCS) analysis. The results supported the reciprocal effects model obtained in the full sample. Changes in peer victimization were influenced by prior changes in depressive symptoms over time, and changes in depressive symptoms were influenced by prior levels of peer victimization. There were also gender differences, with boys exhibiting depressive symptom-driven effects on peer victimization, while girls exhibiting peer victimization-induced depressive symptoms. The dynamic relationships between peer victimization and depressive symptoms that promote and constrain each other in adolescents are elucidated in this study. Differentiating effects on boys and girls is crucial for enhancing the effectiveness of practical interventions.

Toward a functional future for the cognitive neuroscience of human aging

The cognitive neuroscience of human aging seeks to identify neural mechanisms behind the commonalities and individual differences in age-related behavioral changes. This goal has been pursued predominantly through structural or "task-free" resting-state functional neuroimaging. The former has elucidated the material foundations of behavioral decline, and the latter has provided key insight into how functional brain networks change with age. Crucially, however, neither is able to capture brain activity representing specific cognitive processes as they occur. In contrast, task-based functional imaging allows a direct probe into how aging affects real-time brain-behavior associations in any cognitive domain, from perception to higher-order cognition. Here, we outline why task-based functional neuroimaging must move center stage to better understand the neural bases of cognitive aging. In turn, we sketch a multi-modal, behavior-first research framework that is built upon cognitive experimentation and emphasizes the importance of theory and longitudinal design.

The trajectory of attention deficit hyperactivity disorder symptoms and its dynamic relationship with inhibitory control

BACKGROUND

Attention Deficit Hyperactivity Disorder (ADHD) is a prevalent neurodevelopmental disorder in childhood, characterized by symptoms of inattention, hyperactivity, and impulsivity. Impaired inhibitory control is observed in the majority of individuals with ADHD. Understanding the relationship between inhibitory control and the developmental trajectory of ADHD is essential for informing clinical prognosis and guiding early interventions.

METHODS

We utilized Latent Growth Curve Modeling (LGCM) to map the developmental course of ADHD symptoms using data from the Adolescent Brain Cognitive Development study. Concurrently, we examined the longitudinal correlation between inhibitory control and ADHD symptoms at corresponding time points. Additionally, a Bivariate Latent Change Score Model (BLCSM) was employed to investigate the relationship between changes in inhibitory control and ADHD symptoms. We also integrated Polygenic Risk Scores (PRS) into the LGCM as predictors to explore the impact of genetic factors associated with inhibitory control and ADHD on the trajectory of ADHD symptoms.

RESULTS

The LGCM analysis demonstrated that baseline inhibitory control influenced both the initial state and the rate of change of ADHD symptoms. Inhibitory control exhibited both concurrent and prospective associations with ADHD symptoms. Notably, the BLCSM revealed that changes in inhibitory control could predict future changes in ADHD symptoms, and vice versa. Dynamic changes in inhibitory control were found to affect future changes in ADHD symptoms. Additionally, the PRS for inhibitory control and ADHD were significantly linked to the initial state and rate of change of ADHD symptoms.

CONCLUSIONS

Our findings underscore a sustained correlation between inhibitory control and ADHD symptoms, highlighting the critical association between inhibitory control and the developmental trajectory of ADHD in children. Furthermore, the predictive value of inhibitory control for ADHD suggests a new avenue for early intervention, potentially improving the prognosis for ADHD patients.

From imagination to activism: Cognitive alternatives motivate commitment to activism through identification with social movements and collective efficacy

Having a vision and being able to imagine socially and ecologically just alternatives can motivate people for societal transformation. However, which psychological processes drive this link between the mental accessibility of societal alternatives and collective action? We hypothesized that collective efficacy beliefs and politicized identification form two pathways mediating the effects of cognitive alternatives on high-cost activist behaviour. Two studies and a pooled analysis tested these hypotheses longitudinally. Data were collected in two field settings: a climate camp and an online conference on socio-ecological visions. In line with our assumptions, and across three of the four analysed timeframes, latent change score modelling showed that changes in cognitive alternatives predicted changes in collective efficacy beliefs and social movement identification, which in turn, predicted changes in collective action intentions. We found clear evidence for our hypotheses in the short term and mixed evidence in the long term. Additional analyses including participative efficacy showed no relevant effects. We concluded that the ability to envision social change may foster a sense of agency as members of social movements. These processes linking imagination to activism are less about individual efficacy than about realizing the collective possibilities for change and identifying with the groups enacting it.

The unequal impacts of the COVID-19 pandemic on young adults' mental health. Predictors of vulnerability and resilience using longitudinal birth cohort data in the UK

INTRODUCTION

Previous studies have demonstrated deteriorations in young adult mental health during the COVID-19 pandemic, but evidence suggests heterogeneity in the mental health impacts of the pandemic. We sought to identify factors which may predict changes in psychological distress and wellbeing during the COVID-19 pandemic in UK young adults.

METHODS

A total of 2607 young adults from the Millennium Cohort Study were included. Psychological distress and mental wellbeing were measured using the Kessler-6 and Short Warwick-Edinburgh Mental Wellbeing Scale, respectively. Assessment occurred at three timepoints between the ages of 17-19: 2018/19 (pre-COVID Baseline), May 2020 (COVID Wave 1) and September/October 2020 (COVID Wave 2). Latent change score models were used to study change in distress and wellbeing across the study period, as well as the impact of sex, relative family poverty, parental education, preexisting mental health difficulties and perceived social support on these changes.

RESULTS

The latent change score models suggested both distress and wellbeing tended to increase across the study period. Being female and in relative poverty predicted greater increases in distress and/or poorer wellbeing. Higher levels of parental education and greater perceived social support were protective against increased distress and associated with improved wellbeing.

CONCLUSIONS

The impact of the COVID-19 pandemic on UK young adult mental health is complex. We provide further evidence for a distinction between symptoms of poor mental health and wellbeing. Research is urgently needed to assess the long-term impacts of the COVID-19 pandemic on the mental health and wellbeing of young people, particularly in more vulnerable groups.

The Relationship Between Mental Health Literacy and Social Well-Being: A Longitudinal Study in China

In this study, 793 college students were examined through the utilization of the socioeconomic status scale, mental health literacy scale, and social well-being questionnaire at T1 and T2, respectively, with the aim of exploring the relationship between mental health literacy and social well-being and the relative static and dynamic development of the two. The results indicated that mental health literacy was significantly and positively correlated with social well-being to a moderate extent (T1: r = 0.31; T2: r = 0.35). Furthermore, the across-lagged model was employed to determine the relationship between mental health literacy and social well-being over time, revealing that mental health literacy and social well-being merely have a unidirectional predictive relationship; social well-being at T1 can significantly and positively predict mental health literacy at T2, but mental health literacy at T1 cannot predict social well-being at T2. We carried out the latent change score model and discovered that a higher level of T1 social well-being can facilitate the enhancement of mental health literacy subsequently.

Mental health dynamics between mothers and siblings of children with disabilities

Introduction

When a child has a disability, their families face significant challenges that also impact parents' and siblings' mental health and adjustment. We examined the potential bidirectional relationships between parental mental health and sibling mental health and adjustment in families of children with a disability.

Methods

We utilized baseline and 12-month follow-up data from a randomized controlled trial of a brief intervention designed to enhance parent-sibling communication in families of children with a disability. The sample comprised 214 siblings aged 8-16 years and their parents (N = 203 mothers, N = 124 fathers). We estimated bivariate latent change score models to examine the longitudinal cross-domain associations between changes in parental mental health and changes in sibling mental health, and changes in parental mental health and sibling adjustment.

Results

The results showed that changes in maternal mental health and sibling adjustment over the 12-month period were correlated (r = 0.22). The cross-domain associations between changes in maternal mental health and sibling mental health and adjustment were not statistically significant in any of the two models. However, baseline sibling mental health had nearly doubled impact on changes in maternal mental health (Β = 0.232, p = 0.061) compared to maternal health's impact on sibling mental health (Β = -0.134, p = 0.289). Models with paternal mental health data unfortunately did not run due to low paternal response rate at 12-months.

Discussion

The findings suggest that whereas maternal mental health and sibling adjustment changes are correlated over time, the relationship between maternal and sibling measures does not necessarily operate bidirectionally. Future studies on family mental health dynamics should include data from fathers that may contribute to a broader understanding of these complex relationships.

Optimal two-time point longitudinal models for estimating individual-level change: Asymptotic insights and practical implications

Based on findings from a simulation study, Parsons and McCormick (2024) argued that growth models with exactly two time points are poorly-suited to model individual differences in linear slopes in developmental studies. Their argument is based on an empirical investigation of the increase in precision to measure individual differences in linear slopes if studies are progressively extended by adding an extra measurement occasion after one unit of time (e.g., year) has passed. They concluded that two-time point models are inadequate to reliably model change at the individual level and that these models should focus on group-level effects. Here, we show that these limitations can be addressed by deconfounding the influence of study duration and the influence of adding an extra measurement occasion on precision to estimate individual differences in linear slopes. We use asymptotic results to gauge and compare precision of linear change models representing different study designs, and show that it is primarily the longer time span that increases precision, not the extra waves. Further, we show how the asymptotic results can be used to also consider irregularly spaced intervals as well as planned and unplanned missing data. In conclusion, we like to stress that true linear change can indeed be captured well with only two time points if careful study design planning is applied before running a study.

Strengthening through adversity: The hormesis model in developmental psychopathology

BACKGROUND

Employing a developmental psychopathology framework, we tested the utility of the hormesis model in examining the strengthening of children and youth through limited levels of adversity in relation to internalizing and externalizing outcomes within a brain-by-development context.

METHODS

Analyzing data from the Adolescent Brain and Cognitive Development study (N = 11,878), we formed latent factors of threat, deprivation, and unpredictability. We examined linear and nonlinear associations between adversity dimensions and youth psychopathology symptoms and how change of resting-state functional connectivity (rsFC) in the default mode network (DMN) from Time 1 to Time 5 moderates these associations.

RESULTS

A cubic association was found between threat and youth internalizing problems; low-to-moderate family conflict levels reduced these problems. Deprivation also displayed a cubic relation with youth externalizing problems, with moderate deprivation levels associated with fewer problems. Unpredictability linearly increased both problem types. Change in DMN rsFC significantly moderated the cubic link between threat levels and internalizing problems, with declining DMN rsFC levels from Time 1 to Time 5 facilitating hormesis. Hormetic effects peaked earlier, emphasizing the importance of sensitive periods and developmental timing of outcomes related to earlier experiences.

CONCLUSIONS

Strengthening through limited environmental adversity is crucial for developing human resilience. Understanding this process requires considering both linear and nonlinear adversity-psychopathology associations. Testing individual differences by brain and developmental context will inform preventive intervention programming.

Prenatal chronic inflammation and children's executive function development

Fetal inflammation, typically measured indirectly through prenatal maternal cytokine markers, has been shown to impact early childhood executive functions (EFs), which are central to later cognitive and life outcomes. Here, we assessed the impact of prenatal inflammation on EF developmental trajectories using direct placenta histopathology measures in 131 mothers who predominantly self-identified as Black (90.8% Black; 0.8% Asian American, 1.5% biracial, 0.8% Latinx, 3.1% White, 3.1% Missing). We found that placental measures of inflammation were associated with limited gain in EF development from 3 to 5 years old. In follow up analyses, we addressed whether screening questionnaires in infancy might aid in classification of infants as higher risk for subsequent EF problems. We found that parent responses to the Ages & Stages Questionnaire and the Infant/Toddler Sensory Profile at 12 months predict the development of EF abilities in children exposed to chronic inflammation. These findings open promising opportunities for early screening of children at risk for poor executive functioning in children exposed to prenatal inflammation.

Child maltreatment in young adults with residential youth care background: Prevalence and post-placement trends

BACKGROUND

Young adults with residential youth care (RYC) background have often endured various forms of child maltreatment, impacting education, employment, health, mortality, and quality of life. There is limited research on the onset and duration of exposure to maltreatment before placement, as well as the prevalence of maltreatment occurring after children have been placed into out-of-home care.

OBJECTIVE

This study aims to investigate: (1) The sex-specific prevalence and age chronology of self-reported exposure to child maltreatment, and (2) whether the rate of these maltreatment forms differ between the year before and after first out-of-home placement by the Child Welfare Service.

PARTICIPANTS AND SETTING

This study is a part of VINGO, a Norwegian nation-wide 10-year follow-up examining the health and welfare of 157 (107 females) adults with RYC background.

METHODS

The Maltreatment and Abuse Chronology of Exposure Scale was administered as an online questionnaire, and mean scores and percentages of maltreatment forms were compared. Differences between groups were examined using t-tests and Pearson's Chi-Squared test.

RESULTS

Most participants, 154 of 157 (98 %), reported at least one form of child maltreatment. Females reported higher rates of sexual abuse than males (53 % vs. 22 %, p < .001). No other sex differences were found. A majority of participants (63 %) reported decreased maltreatment rates post-placement, while 37 % had stable or increasing rates.

CONCLUSIONS

Young adults with RYC background report high child maltreatment rates. Although out-of-home care provides protection, further development and improvement of initiatives aimed at reducing the risk of revictimization is likely needed.

The interplay of personality pathology and treatment outcome in psychosomatic psychotherapy: A longitudinal analysis using latent change score modelling

INTRODUCTION

While ample data demonstrate the effectiveness of inpatient psychosomatic treatment, clinical observation and empirical evidence demonstrate that not all patients benefit equally from established therapeutic methods. Especially patients with a comorbid personality disorder often show reduced therapeutic success compared to other patient groups. Due to the heterogeneous and categorical personality assessment, previous studies indicated no uniform direction of this influence. This complicates the derivation of therapeutic recommendations for mental disorders with comorbid personality pathology.

METHODS

Analyzing n = 2094 patients from German university hospitals enrolled in the prospective "MEPP" study, we tested the dynamic interaction between dimensionally assessed personality functioning and psychopathology of anxiety and depression.

RESULTS

Longitudinal structural equation modelling replicated the finding that the severity of symptoms at admission predicts symptom improvement within the same symptom domain. In addition, we here report a significant coupling parameter between the baseline level of personality function and the change in general psychopathology - and vice versa.

DISCUSSION AND CONCLUSION

These results imply that personality pathology at admission hinders the therapeutic improvement in anxiety and depression, and that improvement of personality pathology is hindered by general psychopathology. Furthermore, the covariance between both domains supports the assumption that personality functioning and general psychopathology cannot be clearly distinguished and adversely influence each other. A dimensional assessment of the personality pathology is therefore recommendable for psychotherapy research and targeted therapeutic treatment.

Investigating change in the ability to decentre and depressive symptomatology over the course of a six-month mindfulness-based intervention in patients with persistent depression

Mindfulness-based interventions (MBIs) for depression use regular mindfulness practice as a means of helping patients build skills that allow them to respond more adaptively to negative mood. Although effects of practice are assumed to accumulate over time, little is known about the trajectories of change in skills and symptoms beyond the duration of standard eight-week interventions. Forty-four patients with persistent depression were recruited to participate in a 6-month blended MBI and provided self-reports of depressive symptomatology and their ability to decenter, the core skill cultivated in MBIs, at baseline, mid-intervention and after the end of the intervention. Trajectories of change were analysed using latent change score modelling. Thirty-one participants (70 %) completed the intervention having engaged in 68.6 % of practices on average. Trajectories of change in decentering and depression were best described by a combination of a constant change component and a limiting factor indicating decreasing rates with higher previous gains. Bivariate analyses showed significant lagged change to change coupling linking earlier changes in decentering with later changes in symptoms. The findings suggest that decentering skills increase throughout longer periods of practice and drive changes in symptoms to move patients closer to recovery or remission.

Longitudinal evidence for a mutually reinforcing relationship between white matter hyperintensities and cortical thickness in cognitively unimpaired older adults

BACKGROUND

For over three decades, the concomitance of cortical neurodegeneration and white matter hyperintensities (WMH) has sparked discussions about their coupled temporal dynamics. Longitudinal studies supporting this hypothesis nonetheless remain scarce.

METHODS

We applied global and regional bivariate latent growth curve modelling to determine the extent to which WMH and cortical thickness were interrelated over a four-year period. For this purpose, we leveraged longitudinal MRI data from 451 cognitively unimpaired participants (DELCODE; median age 69.71 [IQR 65.51, 75.50] years; 52.32% female). Participants underwent MRI sessions annually over a four-year period (1815 sessions in total, with roughly four MRI sessions per participant). We adjusted all models for demographics and cardiovascular risk.

RESULTS

Our findings were three-fold. First, larger WMH volumes were linked to lower cortical thickness (σ = -0.165, SE = 0.047, Z = -3.515, P < 0.001). Second, individuals with higher WMH volumes experienced more rapid cortical thinning (σ = -0.226, SE = 0.093, Z = -2.443, P = 0.007), particularly in temporal, cingulate, and insular regions. Similarly, those with lower initial cortical thickness had faster WMH progression (σ = -0.141, SE = 0.060, Z = -2.336, P = 0.009), with this effect being most pronounced in temporal, cingulate, and insular cortices. Third, faster WMH progression was associated with accelerated cortical thinning (σ = -0.239, SE = 0.139, Z = -1.710, P = 0.044), particularly in frontal, occipital, and insular cortical regions.

CONCLUSIONS

Our study suggests that cortical thinning and WMH progression could be mutually reinforcing rather than parallel, unrelated processes, which become entangled before cognitive deficits are detectable.

TRIAL REGISTRATION

German Clinical Trials Register (DRKS00007966, 04/05/2015).

Clarifying the Links between Perceived Stress and Depressiveness: a Longitudinal Study of COVID-19's Effects on Adolescents in Germany

Young people are navigating an increasingly uncertain and unstable social and economic environment, further complicated by COVID-19. Individual resources and vulnerabilities, such as mental health and sensitivity to stress, play a significant role in how well youth adapt to the career paths and living conditions altered by the pandemic, a dynamic that is not yet well understood. This study examined the role of COVID-19 on the intertwined relation between perceived stress and depressiveness (negative and positive affect) in adolescents, focusing on gender differences. Longitudinal data from 673 German adolescents (Mage = 16.8 years, SDage = 0.91; female = 59%) were collected in three waves, before (T1) and during the pandemic (T2, T3). Using Latent Change Score models, the bidirectional relation between perceived stress and depressiveness was analyzed, considering gender as a moderator. The results showed that adolescents who found their situation stressful were at risk of developing depressiveness at the outbreak of the pandemic and throughout its progression. As the pandemic progressed, an increase in positive affect was linked to heightened perceived stress. Gender-specific differences were particularly evident in the levels of perceived stress and depressiveness, with women being more vulnerable. This study highlights how vulnerabilities in stress perception affect adolescents' mental health, with gender-specific differences underscoring the need for tailored mental health measures.

A cogent technique to circumvent the use of (some) ratio measures in physiology

Physiologists often express the change in the value of a measurement made on two occasions as a ratio of the initial value. This is usually motivated by an assumption that the absolute change fails to capture the true extent of the alteration that has occurred in attaining the final value - if there is initial variation among individual cases. While it may appear reasonable to use ratios to standardize the magnitude of change in this way, the perils of doing so have been widely documented. Ratios frequently have intractable statistical properties, both when taken in isolation and when analysed using techniques such as regression. A new method of computing a standardized metric of change, based on principal components analysis (PCA), is described. It exploits the collinearity within sets of initial, absolute change and final values. When these sets define variables subjected to PCA, the standardized measure of change is obtained as the product of the loading of absolute change onto the first principal component (PC1) and the eigenvalue of PC1. It is demonstrated that a sample drawn from a population of these standardized measures: approximates a normal distribution (unlike the corresponding ratios); lies within the same range; and preserves the rank order of the ratios. It is also shown that this method can be used to express the magnitude of a physiological response in an experimental condition relative to that obtained in a control condition. KEY POINTS: The intractable statistical properties of ratios and the perils of using ratios to standardize the magnitude of change are well known. A new method of computing a standardized metric, based on principal components analysis (PCA), is described, which exploits the collinearity within sets of initial, absolute change and final values. A sample drawn from a population of these PCA-derived measures: approximates a normal distribution (unlike the corresponding ratios); lies within the same range as the ratios; and preserves the rank order of the ratios. The method can also be applied to express the magnitude of a physiological response in an experimental condition relative to a control condition.

Disentangling the trajectories of maternal depressive symptoms and partnership problems in the transition to parenthood and their impact on child adjustment difficulties

Maternal perinatal depression (PND) and partnership problems have been identified to influence the development of later child adjustment difficulties. However, PND and partnership problems are closely linked which makes it difficult to draw conclusions about the exact transmission pathways. The aim of the present study was to investigate to what extent PND symptoms and partnership problems influence each other longitudinally and to examine the influence of their trajectories on child adjustment difficulties at the age of three. Analyses were based on publicly available data from the German family panel "pairfam". N = 354 mothers were surveyed on depressive symptoms and partnership problems annually from pregnancy (T0) until child age three (T4). Child adjustment difficulties were assessed at age three. Results of latent change score modeling showed that partnership problems predicted change in PND symptoms at T0 and T3 while PND symptoms did not predict change in partnership problems. Child adjustment difficulties at age three were predicted by PND symptoms, but not by partnership problems. Partnership problems predicted externalizing, but not internalizing symptoms. Results underline the effects of family factors for the development of child adjustment difficulties and emphasize the importance of early interventions from pregnancy onwards.

Estimating statistical power for structural equation models in developmental cognitive science: A tutorial in R : Power simulation for SEMs

Determining the compositional structure and dimensionality of psychological constructs lies at the heart of many research questions in developmental science. Structural equation modeling (SEM) provides a versatile framework for formalizing and estimating the relationships among multiple latent constructs. While the flexibility of SEM can accommodate many complex assumptions on the underlying structure of psychological constructs, it makes a priori estimation of statistical power and required sample size challenging. This difficulty is magnified when comparing non-nested SEMs, which prevents the use of traditional likelihood-ratio tests. Sample size estimates for SEM model fit comparisons typically rely on generic rules of thumb. Such heuristics can be misleading because statistical power in SEM depends on a variety of model properties. Here, we demonstrate a Monte Carlo simulation approach for estimating a priori statistical power for model selection when comparing non-nested models in an SEM framework. We provide a step-by-step guide to this approach based on an example from our memory development research in children.

Neuroticism Is Prospectively Associated With 30-Month Changes in Broadband Internalizing Symptoms, but Not Narrowband Positive Affect or Anxious Arousal, in Emerging Adulthood

Elevated levels of Neuroticism/Negative Emotionality (N/NE) and, less consistently, lower levels of Extraversion/Positive Emotionality (E/PE) confer risk for pathological depression and anxiety. To date, most prospective-longitudinal research has narrowly focused on traditional diagnostic categories, creating uncertainty about the precise nature of these prospective associations. Adopting an explicitly hierarchical-dimensional approach, we examined the association between baseline variation in personality and longitudinal changes in broad and narrow internalizing-symptom dimensions in 234 emerging adults followed for 2.5 years, during the transition from older adolescence to early adulthood. N/NE was uniquely associated with increases in broadband internalizing-the core cognitive and affective symptoms that cut across the emotional disorders-and unrelated to the narrower dimensions of positive affect and anxious arousal that differentiate specific internalizing presentations. Variation in E/PE and several other Big Five traits was cross-sectionally, but not prospectively, related to longitudinal changes in specific internalizing symptoms. Exploratory personality-facet-level analyses provided preliminary evidence of more granular associations between personality and longitudinal changes in internalizing symptoms. These observations enhance the precision of models linking personality to internalizing illness; highlight the centrality of N/NE to increases in transdiagnostic internalizing symptoms during a key developmental chapter; and set the stage for developing more effective prevention and treatment strategies.

A New School, a Fresh Start? Change and Stability in Peer Relationships and Academic Performance in the Transition from Primary to Secondary School

Previous studies on peer relationships in school transitions neglected individual differences, or did not examine the relation with academic performance in secondary school. This study followed 649 students from their last year of primary school to their first year in secondary school (Mage at T1 = 11.6 (SD = 0.6); 53.6% girls). Results revealed that students became more attached to peers, less lonely, and were stable in victimization across the transition. Particularly students with more negative peer experiences in primary school enjoyed a "fresh start" in terms of peer experiences in secondary school. Students who had more co-transitioning peers experienced greater reductions in loneliness. Changes in peer experiences over the transition did not relate to academic performance in secondary school.

Hippocampus and striatum show distinct contributions to longitudinal changes in value-based learning in middle childhood

The hippocampal-dependent memory system and striatal-dependent memory system modulate reinforcement learning depending on feedback timing in adults, but their contributions during development remain unclear. In a 2-year longitudinal study, 6-to-7-year-old children performed a reinforcement learning task in which they received feedback immediately or with a short delay following their response. Children's learning was found to be sensitive to feedback timing modulations in their reaction time and inverse temperature parameter, which quantifies value-guided decision-making. They showed longitudinal improvements towards more optimal value-based learning, and their hippocampal volume showed protracted maturation. Better delayed model-derived learning covaried with larger hippocampal volume longitudinally, in line with the adult literature. In contrast, a larger striatal volume in children was associated with both better immediate and delayed model-derived learning longitudinally. These findings show, for the first time, an early hippocampal contribution to the dynamic development of reinforcement learning in middle childhood, with neurally less differentiated and more cooperative memory systems than in adults.

Between victory and peace: Unravelling the paradox of hope in intractable conflicts

Previous research on group-based hope has predominantly focused on positive intergroup outcomes, such as peace and harmony. In this paper, we demonstrate that hope experienced towards group-centric political outcomes, such as a victory in a conflict and defeating the enemy, can be detrimental to peace. In Study 1, conducted among Israeli Jews, hope for victory over the Palestinians was uniquely associated with more support for extreme war policies, whereas hope for peace generally showed the opposite associations. In Study 2, we replicated these results among Muslim Pakistanis regarding the Pakistan-India dispute. Notably, in both Studies 1 and 2, only hope for victory significantly predicted personal violent extremist intentions. In Study 3, conducted with a representative sample of Israeli Jews, we found three latent profiles of hope: victory hopers, peace hopers, and dual hopers (hoping for both peace and victory). Finally, in preregistered Study 4, we longitudinally investigated how hopes for victory and peace changed from a relatively calm period in 2021 to the Israel-Hamas War of 2023, utilizing a Bivariate Latent Change Score analysis. Increases in hope for victory during the highly intense war explained the increase in support for violence. We discuss implications, limitations, and directions for future research.

Interplay of physical and recognition performance using hierarchical continuous-time dynamic modeling and a dual-task training regime in Alzheimer's patients

Training studies typically investigate the cumulative rather than the analytically challenging immediate effect of exercise on cognitive outcomes. We investigated the dynamic interplay between single-session exercise intensity and time-locked recognition speed-accuracy scores in older adults with Alzheimer's dementia (N = 17) undergoing a 24-week dual-task regime. We specified a state-of-the-art hierarchical Bayesian continuous-time dynamic model with fully connected state variables to analyze the bi-directional effects between physical and recognition scores over time. Higher physical performance was dynamically linked to improved recognition (-1.335, SD = 0.201, 95% Bayesian credible interval [BCI] [-1.725, -0.954]). The effect was short-term, lasting up to 5 days (-0.368, SD = 0.05, 95% BCI [-0.479, -0.266]). Clinical scores supported the validity of the model and observed temporal dynamics. Higher physical performance predicted improved recognition speed accuracy in a day-by-day manner, providing a proof-of-concept for the feasibility of linking exercise training and recognition in patients with Alzheimer's dementia.

Highlights

Hierarchical Bayesian continuous-time dynamic modeling approachA total of 72 repeated physical exercise (PP) and integrated recognition speed-accuracy (IRSA) measurementsPP is dynamically linked to session-to-session variability of IRSAHigher PP improved IRSA in subsequent sessions in subjects with Alzheimer's dementiaShort-term effect: lasting up to 4 days after training session.

Longitudinal changes in sexual desire and attraction among women who started using the Natural Cycles app

Many women experience sexual side effects, such as decreased libido, when taking hormonal contraceptives (HCs). However, little is known about the extent to which libido recovers after discontinuing HCs, nor about the timeframe in which recovery is expected to occur. Given that HCs suppress the activities of multiple endogenous hormones that regulate both the ovulatory cycle and women's sexual function, resumption of cycles should predict libido recovery. Here, using a combination of repeated and retrospective measures, we examined changes in sexual desire and partner attraction (among partnered women) across a three-month period in a sample of Natural Cycles users (Survey 1: n = 1596; Survey 2: n = 550) who recently discontinued HCs. We also tested whether changes in these outcomes coincided with resumption of the ovulatory cycle and whether they were associated with additional factors related to HC use (e.g., duration of HC use) or relationship characteristics (e.g., relationship length). Results revealed that both sexual desire and partner attraction, on average, increased across three months after beginning to use Natural Cycles. While the prediction that changes in sexual desire would co-occur with cycle resumption was supported, there was also evidence that libido continued to increase even after cycles resumed. Together, these results offer new insights into relationships between HC discontinuation and women's sexual psychology and lay the groundwork for future research exploring the mechanisms underlying these effects.

Maternal education prospectively predicts child neurocognitive function: An environmental influences on child health outcomes study

A large body of research has established a relation between maternal education and children's neurocognitive functions, such as executive function and language. However, most studies have focused on early childhood and relatively few studies have examined associations with changes in maternal education over time. Consequently, it remains unclear if early maternal education is longitudinally related to neurocognitive functions in children, adolescents, and young adults. In addition, the associations between changes in maternal education across development and more broadly defined neurocognitive outcomes remain relatively untested. The current study leveraged a large multicohort sample to examine the longitudinal relations between perinatal maternal education and changes in maternal education during development with children's, adolescents', and young adults' neurocognitive functions (N = 2,688; Mage = 10.32 years; SDage = 4.26; range = 3-20 years). Moreover, we examined the differential effects of perinatal maternal education and changes in maternal education across development on executive function and language performance. Perinatal maternal education was positively associated with children's later overall neurocognitive function. This longitudinal relation was stronger for language than executive function. In addition, increases in maternal education were related to improved language performance but were not associated with executive functioning performance. Our findings support perinatal maternal education as an important predictor of neurocognitive outcomes later in development. Moreover, our results suggest that examining how maternal education changes across development can provide important insights that can help inform policies and interventions designed to foster neurocognitive development. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Human immunodeficiency virus prevention outcomes associated with arts-based sexual health workshop participation among Northern and Indigenous adolescents in the Northwest Territories, Canada

BACKGROUND

Contextually tailored, arts-based HIV prevention strategies hold potential to advance adolescent sexual health and wellbeing. We examined HIV prevention outcomes associated with arts-based sexual health workshop participation with Northern and Indigenous adolescents in the Northwest Territories (NWT), Canada.

METHODS

An Indigenous community-based youth agency delivered arts-based workshops in school settings to adolescents aged 13-18 in 24 NWT communities. Pre and post-test surveys included socio-demographic characteristics, sexually infections (STI) knowledge, HIV/STI risk perception, sexual relationship equity, condom use self-efficacy, and safer sex efficacy (SSE). Latent change score models were conducted to assess pre-post differences and factors associated with these differences.

RESULTS

Among participants (n = 344; mean age 14.3 years, SD: 1.3; Indigenous: 79%) most (66%) had previously attended this workshop. Latent change score models revealed a significant and large effect size for increased STI knowledge (β = 2.10, SE = 0.48, p < .001) and significant and small effect sizes for increased HIV/STI risk perception (β = 0.24, SE = 0.06, p < .001) and SSE (β = 0.16, SE = 0.07, p = .02). The largest increases across several outcomes occurred with first time workshop participants; yet previous workshop participants continued to report increases in HIV/STI risk perception and SSE.

CONCLUSION

Arts-based HIV prevention approaches show promise in advancing STI knowledge, risk perception, and SSE with Northern and Indigenous youth.

Perivascular Spaces, Diffusivity Along Perivascular Spaces, and Free Water in Cerebral Small Vessel Disease

BACKGROUND AND OBJECTIVES

Previous studies have linked the MRI measures of perivascular spaces (PVSs), diffusivity along the perivascular spaces (DTI-ALPS), and free water (FW) to cerebral small vessel disease (SVD) and SVD-related cognitive impairments. However, studies on the longitudinal associations between the three MRI measures, SVD progression, and cognitive decline are lacking. This study aimed to explore how PVS, DTI-ALPS, and FW contribute to SVD progression and cognitive decline.

METHODS

This is a cohort study that included participants with SVD who underwent neuroimaging and cognitive assessment, specifically measuring Mini-Mental State Examination (MMSE), cognitive index, and processing speed, at 2 time points. Three MRI measures were quantified: PVS in basal ganglia (BG-PVS) volumes, FW fraction, and DTI-ALPS. We performed a latent change score model to test inter-relations between the 3 MRI measures and linear regression mixed models to test their longitudinal associations with the changes of other SVD MRI markers and cognitive performances.

RESULTS

In baseline assessment, we included 289 participants with SVD, characterized by a median age of 67.0 years and 42.9% women. Of which, 220 participants underwent the follow-up assessment, with a median follow-up time of 3.4 years. Baseline DTI-ALPS was associated with changes in BG-PVS volumes (β = -0.09, p = 0.030), but not vice versa (β = -0.08, p = 0.110). Baseline BG-PVS volumes were associated with changes in white matter hyperintensity (WMH) volumes (β = 0.33, p-corrected < 0.001) and lacune numbers (β = 0.28, p-corrected < 0.001); FW fraction was associated with changes in WMH volumes (β = 0.30, p-corrected < 0.001), lacune numbers (β = 0.28, p-corrected < 0.001), and brain volumes (β = -0.45, p-corrected < 0.001); DTI-ALPS was associated with changes in WMH volumes (β = -0.20, p-corrected = 0.002) and brain volumes (β = 0.23, p-corrected < 0.001). Furthermore, baseline FW fraction was associated with decline in MMSE score (β = -0.17, p-corrected = 0.006); baseline FW fraction and DTI-ALPS were associated with changes in cognitive index (FW fraction: β = -0.25, p-corrected < 0.001; DTI-ALPS: β = 0.20, p-corrected = 0.001) and processing speed over time (FW fraction: β = -0.29, p-corrected < 0.001; DTI-ALPS: β = 0.21, p-corrected < 0.001).

DISCUSSION

Our results showed that increased BG-PVS volumes, increased FW fraction, and decreased DTI-ALPS are related to progression of MRI markers of SVD, along with SVD-related cognitive decline over time. These findings may suggest that the glymphatic dysfunction is related to SVD progression, but further studies are needed.

Common Cause Versus Dynamic Mutualism: An Empirical Comparison of Two Theories of Psychopathology in Two Large Longitudinal Cohorts

Mental disorders are among the leading causes of global disease burden. To respond effectively, a strong understanding of the structure of psychopathology is critical. We empirically compared two competing frameworks, dynamic-mutualism theory and common-cause theory, that vie to explain the development of psychopathology. We formalized these theories in statistical models and applied them to explain change in the general factor of psychopathology (p factor) from early to late adolescence (N = 1,482) and major depression in middle adulthood and old age (N = 6,443). Change in the p factor was better explained by mutualism according to model-fit indices. However, a core prediction of mutualism was not supported (i.e., predominantly positive causal interactions among distinct domains). The evidence for change in depression was more ambiguous. Our results support a multicausal approach to understanding psychopathology and showcase the value of translating theories into testable statistical models for understanding developmental processes in clinical sciences.

Longitudinal alcohol-related brain changes in older adults: The Sydney Memory and Ageing Study

Increases in harmful drinking among older adults indicate the need for a more thorough understanding of the relationship between later-life alcohol use and brain health. The current study investigated the relationships between alcohol use and progressive grey and white matter changes in older adults using longitudinal data. A total of 530 participants (aged 70 to 90 years; 46.0% male) were included. Brain outcomes assessed over 6 years included total grey and white matter volume, as well as volume of the hippocampus, thalamus, amygdala, corpus callosum, orbitofrontal cortex and insula. White matter integrity was also investigated. Average alcohol use across the study period was the main exposure of interest. Past-year binge drinking and reduction in drinking from pre-baseline were additional exposures of interest. Within the context of low-level average drinking (averaging 11.7 g per day), higher average amount of alcohol consumed was associated with less atrophy in the left (B = 7.50, pFDR = 0.010) and right (B = 5.98, pFDR = 0.004) thalamus. Past-year binge-drinking was associated with poorer white matter integrity (B = -0.013, pFDR = 0.024). Consuming alcohol more heavily in the past was associated with greater atrophy in anterior (B = -12.73, pFDR = 0.048) and posterior (B = -17.88, pFDR = 0.004) callosal volumes over time. Across alcohol exposures and neuroimaging markers, no other relationships were statistically significant. Within the context of low-level drinking, very few relationships between alcohol use and brain macrostructure were identified. Meanwhile, heavier drinking was negatively associated with white matter integrity.

Assessing the Longitudinal Associations Between Decision-Making Processes and Attention Problems in Early Adolescence

Cognitive functions and psychopathology develop in parallel in childhood and adolescence, but the temporal dynamics of their associations are poorly understood. The present study sought to elucidate the intertwined development of decision-making processes and attention problems using longitudinal data from late childhood (9-10 years) to mid-adolescence (11-13 years) from the Adolescent Brain Cognitive Development (ABCD) Study (n = 8918). We utilised hierarchical drift-diffusion modelling of behavioural data from the stop-signal task, parent-reported attention problems from the Child Behavior Checklist (CBCL), and multigroup univariate and bivariate latent change score models. The results showed faster drift rate was associated with lower levels of inattention at baseline, as well as a greater reduction of inattention over time. Moreover, baseline drift rate negatively predicted change in attention problems in females, and baseline attention problems negatively predicted change in drift rate. Neither response caution (decision threshold) nor encoding- and responding processes (non-decision time) were significantly associated with attention problems. There were no significant sex differences in the associations between decision-making processes and attention problems. The study supports previous findings of reduced evidence accumulation in attention problems and additionally shows that development of this aspect of decision-making plays a role in developmental changes in attention problems in youth.

Detecting Cohort Effects in Accelerated Longitudinal Designs Using Multilevel Models

Accelerated longitudinal designs allow researchers to efficiently collect longitudinal data covering a time span much longer than the study duration. One important assumption of these designs is that each cohort (a group defined by their age of entry into the study) shares the same longitudinal trajectory. Although previous research has examined the impact of violating this assumption when each cohort is defined by a single age of entry, it is possible that each cohort is instead defined by a range of ages, such as groups that experience a particular historical event. In this paper we examined how including cohort membership in linear and quadratic multilevel models performed in detecting and controlling for cohort effects in this scenario. Using a Monte Carlo simulation study, we assessed the performance of this approach under conditions related to the number of cohorts, the overlap between cohorts, the strength of the cohort effect, the number of affected parameters, and the sample size. Our results indicate that models including a proxy variable for cohort membership based on age at study entry performed comparably to using true cohort membership in detecting cohort effects accurately and returning unbiased parameter estimates. This indicates that researchers can control for cohort effects even when true cohort membership is unknown.