This paper discusses research on reading disorders during the period since their classification within the overarching category of neurodevelopmental disorders (Journal of Child Psychology and Psychiatry, 53, 2012, 593). Following a review of the predictors of learning to read across languages, and the role of language skills as critical foundations for literacy, profiles of reading disorders are discussed and putative causal risk factors at the cognitive, biological, and environmental levels of explanation considered. Reading disorders are highly heritable and highly comorbid with disorders of language, attention, and other learning disorders, notably mathematics disorders. The home literacy environment, reflecting gene-environment correlation, is one of several factors that promote reading development and highlight an important target for intervention. The multiple deficit view of dyslexia (Cognition, 101, 2006, 385) suggests that risks accumulate to a diagnostic threshold although categorical diagnoses tend to be unstable. Implications for assessment and intervention are discussed.
BACKGROUND: Immune system dysfunction may be associated with eating disorders (ED) and could have implications for detection, risk assessment, and treatment of both autoimmune diseases and EDs. However, questions regarding the nature of the relationship between these two disease entities remain. We evaluated the strength of associations for the bidirectional relationships between EDs and autoimmune diseases. METHODS: In this nationwide population-based study, Swedish registers were linked to establish a cohort of more than 2.5 million individuals born in Sweden between January 1, 1979 and December 31, 2005 and followed up until December 2013. Cox proportional hazard regression models were used to investigate: (a) subsequent risk of EDs in individuals with autoimmune diseases; and (b) subsequent risk of autoimmune diseases in individuals with EDs. RESULTS: We observed a strong, bidirectional relationship between the two illness classes indicating that diagnosis in one illness class increased the risk of the other. In women, the diagnoses of autoimmune disease increased subsequent hazards of anorexia nervosa (AN), bulimia nervosa (BN), and other eating disorders (OED). Similarly, AN, BN, and OED increased subsequent hazards of autoimmune diseases.Gastrointestinal-related autoimmune diseases such as, celiac disease and Crohn's disease showed a bidirectional relationship with AN and OED. Psoriasis showed a bidirectional relationship with OED. The previous occurence of type 1 diabetes increased the risk for AN, BN, and OED. In men, we did not observe a bidirectional pattern, but prior autoimmune arthritis increased the risk for OED. CONCLUSIONS: The interactions between EDs and autoimmune diseases support the previously reported associations. The bidirectional risk pattern observed in women suggests either a shared mechanism or a third mediating variable contributing to the association of these illnesses.
Anna M. Hedman, Lauren E. Breithaupt, Christopher Hübel et al.
Childhood trauma is a key modifiable risk factor for psychopathology. Despite significant scientific advances, traumatised children still have poorer long-term outcomes than nontraumatised children. New research paradigms are, thus, needed. To this end, the review examines three dominant assumptions about measurement, design and analytical strategies. Current research warns against using prospective and retrospective measures of childhood trauma interchangeably; against interpreting cross-sectional differences in putative mediating mechanisms between adults with or without a history of childhood trauma as evidence of longitudinal changes from pre-trauma conditions; and against directly applying explanatory models of resilience or vulnerability to psychopathology in traumatised children to forecast individual risk in unseen cases. The warnings equally apply to research on broader measures of adverse childhood experiences (ACEs). Further research examining these assumptions can generate new insights on how to prevent childhood trauma and its detrimental effects.
Abstract As mothers and fathers remain important attachment figures beyond infancy and toddlerhood, comparisons of attachment security of older children with their mothers and fathers are relevant for family researchers and practitioners. We analyzed mean-level differences between verbal reports of attachment security with mothers and fathers, and correlations between both attachments. A systematic search in electronic databases identified 826 studies that were included in random-effects meta-analyses. Although security of attachment with fathers was, on average, lower than security of attachment with mothers, mean-level differences were small ( g = −0.29). Large correlations were found between security with mothers and fathers ( r = 0.53). While mean-level differences were larger in studies with questionnaires rather than interviews, the reverse was found when analyzing correlation. The size of mean-level differences increased with age, while the size of the correlation between security with mothers and fathers declined. More recent studies found smaller mean-level differences and larger correlations of security with both attachment figures. There were smaller differences between security with mothers and fathers as well as larger correlations of security with both parents if samples included more intact families. Mean level-differences were smaller and correlations were stronger if studies included more males. Finally, there were larger correlations of security with mothers and fathers in low-risk samples than in clinical/high-risk samples. We conclude that correlations and mean-level differences of self-reported attachment security are stronger than in studies with behavioral measures of observed security in younger children. Further research is recommended on factors that explain the observed correlations and mean-level differences.
Mental health problems are common in children and adolescents, yet evidence-based treatments are hard to access. Self-help interventions can increase such access. The aim of this paper was to conduct a systematic review and meta-analysis of the use of guided and unguided self-help for children and young people with symptoms of common mental health disorders. In contrast to previous reviews of self-help in children, all types of self-help and multiple mental health disorders were investigated in order to increase power to investigate potential moderators of efficacy. Importantly, studies with control arms as well as those comparing against traditional face-to-face treatments were included. Fifty studies (n = 3396 participants in self-help/guided self-help conditions) met the inclusion criteria. Results demonstrated a moderate positive effect size for guided and unguided self-help interventions when compared against a control group (n = 44; g = 0.49; 95% CI: 0.37 to 0.61, p < .01) and a small but significant negative effect size when compared to other therapies (n = 15; g = -0.17; 95% CI: -0.27 to -0.07, p < .01). Few potential moderators had a significant effect on outcome. Most comparisons resulted in significant heterogeneity and therefore results are interpreted with caution.
Sophie D. Bennett, Pim J. Cuijpers, David Daniel Ebert et al.
Abstract The quality of parent-child interaction has consistently been associated with child psychosocial outcomes. Postnatal depression (PND) and anxiety (PNA) can have an adverse effect on the parent-child interaction. The Coding Interactive Behaviour (CIB) measure has frequently been used to assess parent-infant interaction quality; however, few have investigated the construct validity. The purpose of this study is to: (1) compare two theoretical models and one data-driven model for best fit and to test the best fitting one for measurement invariance among mothers with and without PND, and (2) compare effects of PND and PNA on the mother-infant interactions. The sample consisted of mothers with PND (n = 236) and a subclinical sample of mothers with elevated symptoms of PND but did not meet criteria for a diagnosis (n = 183) and their infants (aged ≤ 6 months). PND was assessed with a diagnostic interview and PNA using a self-report measure. Confirmatory factor analyses showed that the data-driven model, consisting of the composites ‘Maternal Sensitivity’, ‘Child Engagement’, ‘Maternal Social Withdrawal’, and ‘Maternal Controlling Behaviour’, reached the best fit and showed measurement invariance with regard to PND. Factorial ANOVAs showed no effects of PND and PNA on the composites. The study is the first to investigate and find measurement invariance in the CIB, providing evidence of construct validity. The importance of investigating the factor structure of an instrument liable to change due to contextual factors is discussed.
Anne Christine Stuart, Ida Egmose, Johanne Smith‐Nielsen et al.
BACKGROUND: There is emerging evidence of the potentially detrimental impact of social media on young people's mental health. Against this background, online self-harm content has been a recent focus of concern across academia, policy and the media. It has been argued to encourage or even cause acts such as self-cutting through mechanisms of contagion. However, little is known about why a young person might engage with such content or about its impact on behaviour or well-being. METHODS: Online ethnographic observation of interactions around self-harm on Twitter, Reddit and Instagram: collection and analysis of 10,169 original posts and 36,934 comments, both written and pictorial, at two time-points in 2018 and 2019. Ten in-depth semi-structured interviews exploring engagements with self-harm content on social media. RESULTS: Our data show that peer support is the central component of online interactions around self-harm. Young people accessing such content are likely to already be self-harming; they may turn to social media to understand, and seek help for, their actions and feelings in a context of offline stigma and service support gaps. This paper engages with the mechanisms, complexities and impact of this peer-support, reflecting on the benefits and dangers to caring for oneself and others through social media. CONCLUSIONS: Self-harm content is a fraught issue at the centre of current debates around risks and opportunities for child and adolescent mental health in the digital age. Whilst the importance of supporting young people's online safety is clear, moves to eradicate self-harm content must be undertaken with caution so as not to cause unintentional harm. Our research highlights a need to think beyond a model of contagion, instead attending to other mechanisms of harm and benefit. In so doing, it challenges prevailing attitudes towards online communication about self-harm and accepted approaches to managing this.
Abstract Programs that aim to reduce symptoms of social anxiety in children generally include multiple components, such as exposure and cognitive restructuring. It is unknown if separate components yield positive intervention effects in children or whether a combination of components is required. We investigated the effectiveness of exposure, cognitive restructuring, and a combination of both components in reducing social anxiety symptoms and anxiety-related social-emotional outcomes in an indicated-prevention setting. To this end, we conducted a cluster-randomized microtrial using a sample of 191 children aged 8 to 13 years (M = 10.48, SD = 1.10). Children with elevated social anxiety symptoms participated in one of three group interventions, each lasting four weeks, and completed a questionnaire on four measurement occasions. Latent change models demonstrated that the intervention with either exposure or cognitive restructuring reduced social anxiety symptoms and anxiety-related outcomes. The analyses showed that both of these intervention components were effective, with more favorable effects for exposure. Combining exposure and cognitive restructuring techniques did not yield greater benefit than either component alone. Future research should investigate whether specific components may be more effective for particular subgroups (e.g., based on sex or level of behavioral inhibition) in more detail.
Brechtje de Mooij, Minne Fekkes, Anne C. Miers et al.
BACKGROUND: Post-traumatic stress disorder (PTSD) is a potentially chronic and disabling disorder that affects a significant minority of youth exposed to trauma. Previous studies have concluded that trauma-focused cognitive behavioural therapy (TF-CBT) is an effective treatment for PTSD in youth, but the relative strengths of different psychological therapies are poorly understood. METHODS: We undertook a systematic review and network meta-analyses of psychological and psychosocial interventions for children and young people with PTSD. Outcomes included PTSD symptom change scores post-treatment and at 1-4-month follow-up, and remission post-treatment. RESULTS: We included 32 trials of 17 interventions and 2,260 participants. Overall, the evidence was of moderate-to-low quality. No inconsistency was detected between direct and indirect evidence. Individual forms of TF-CBT showed consistently large effects in reducing PTSD symptoms post-treatment compared with waitlist. The order of interventions by descending magnitude of effect versus waitlist was as follows: cognitive therapy for PTSD (SMD -2.94, 95%CrI -3.94 to -1.95), combined somatic/cognitive therapies, child-parent psychotherapy, combined TF-CBT/parent training, meditation, narrative exposure, exposure/prolonged exposure, play therapy, Cohen TF-CBT/cognitive processing therapy (CPT), eye movement desensitisation and reprocessing (EMDR), parent training, group TF-CBT, supportive counselling and family therapy (SMD -0.37, 95%CrI -1.60 to 0.84). Results for parent training, supportive counselling and family therapy were inconclusive. Cohen TF-CBT/CPT, group TF-CBT and supportive counselling had the largest evidence base. Results regarding changes in PTSD symptoms at follow-up and remission post-treatment were uncertain due to limited evidence. CONCLUSIONS: Trauma-focused cognitive behavioural therapy, in particular individual forms, appears to be most effective in the management of PTSD in youth. EMDR is effective but to a lesser extent. Supportive counselling does not appear to be effective. Results suggest a large positive effect for emotional freedom technique, child-parent psychotherapy, combined TF-CBT/parent training, and meditation, but further research is needed to confirm these findings as they were based on very limited evidence.
Ifigeneia Mavranezouli, Odette Megnin‐Viggars, Caitlin Daly et al.
The gut microbiota is a vast, complex, and fascinating ecosystem of microorganisms that resides in the human gastrointestinal tract. As an integral part of the microbiota-gut-brain axis, it is now being recognized that the microbiota is a modulator of brain and behavior, across species. Intriguingly, periods of change in the microbiota coincide with the development of other body systems and particularly the brain. We hypothesize that these times of parallel development are biologically relevant, corresponding to 'sensitive periods' or 'critical windows' in the development of the microbiota-gut-brain axis. Specifically, signals from the microbiota during these periods are hypothesized to be crucial for establishing appropriate communication along the axis throughout the life span. In other words, the microbiota is hypothesized to act like an expected input to calibrate the development of the microbiota-gut-brain axis. The absence or disruption of the microbiota during specific developmental windows would therefore be expected to have a disproportionate effect on specific functions or potentially for regulation of the system as a whole. Evidence for microbial modulation of neurocognitive development and neurodevelopmental risk is discussed in light of this hypothesis, finishing with a focus on the challenges that lay ahead for the future study of the microbiota-gut-brain axis during development.
Caitlin S.M. Cowan, Timothy G. Dinan, John F. Cryan
