Most cognitive training programs are adaptive, despite limited direct evidence that this maximizes children's outcomes. This randomized controlled trial evaluated working memory training with difficulty of activities presented using adaptive, self-select, or stepwise compared with an active control. At baseline, immediately, and 6-months post-intervention, 201 Australian primary school children (101 males, 7-11 years) completed working memory tests (near and intermediate transfer) and the Raven's Standard Progressive Matrices, and caregivers completed the attention-deficit/hyperactivity disorder-Rating Scale-5 (far transfer).
View Article and Find Full Text PDFThe corpus callosum, the largest white matter inter-hemispheric pathway, is involved in language and communication. In a cohort of 15 children and adolescents (8-15 years) with developmental absence of the corpus callosum (AgCC), this study aimed to describe language and everyday communication functioning, and explored the role of anatomical factors, social risk, and non-verbal IQ in these outcomes. Standardised measures of language and everyday communication functioning, intellectual ability and social risk were used.
View Article and Find Full Text PDFDifficulties in executive functioning (EF) can result in impulsivity, forgetfulness, and inattention. Children living in remote/regional communities are particularly at risk of impairment in these cognitive skills due to reduced educational engagement and poorer access to interventions. This vulnerability has been exacerbated by the COVID-19 pandemic and strategies are needed to mitigate long-term negative impacts on EF.
View Article and Find Full Text PDFDespite the abundance of research evaluating working memory training outcomes in children, few studies have examined the underlying cognitive mechanisms. This study aimed to contribute understanding by exploring whether (maximum span) and/or (basic and cognitive processing speeds), two proposed cognitive mechanisms, are associated with children's working memory performance immediately and 6-months post-intervention. We used data from a previous trial in primary school children (7-11 years) who completed working memory training (n = 52) or an active control (n = 36), comprising 10 sessions (each 20-minutes) in class over two weeks.
View Article and Find Full Text PDFJMIR Res Protoc
September 2023
Background: A common yet untested assumption of cognitive training in children is that activities should be adaptive, with difficulty adjusted to the individual's performance in order to maximize improvements on untrained tasks (known as transfer). Working memory training provides the ideal testbed to systematically examine this assumption as it is one of the most widely studied domains in the cognitive training literature, and is critical for children's learning, including following instructions and reasoning.
Objective: This trial aimed to examine children's outcomes of working memory training using adaptive, self-select (child selects difficulty level), and stepwise (difficulty level increases incrementally) approaches to setting the difficulty of training activities compared to an active control condition immediately and 6-month postintervention.
Objective: The purpose of this study was to compare mental health symptoms and diagnoses at age 5 years between children born <30 weeks' gestation and their term-born peers and associations with postnatal symptoms of depression and anxiety in their mothers and fathers.
Methods: Parents of children born <30 weeks' gestation (n = 106) and at term (n = 105) completed measures of anxiety and depression symptoms within 4 weeks of birth and questionnaires assessing child socioemotional symptoms and mental health/neurodevelopmental diagnostic criteria at age 5 years.
Results: At age 5 years, children born <30 weeks' gestation were more likely to show clinically concerning levels of total difficulties (odds ratio [OR] = 3.
Objectives: The developmental absence (agenesis) of the corpus callosum (AgCC) is a congenital brain malformation associated with risk for a range of neuropsychological difficulties. Inhibitory control outcomes, including interference control and response inhibition, in children with AgCC are unclear. This study examined interference control and response inhibition: 1) in children with AgCC compared with typically developing (TD) children, 2) in children with different anatomical features of AgCC (complete partial, isolated complex), and 3) associations with white matter volume and microstructure of the anterior (AC) and posterior commissures (PC) and any remnant corpus callosum (CC).
View Article and Find Full Text PDFObjective: The Strengths and Difficulties Questionnaire is a widely used screening tool for emotional and behavioural problems in children. Recent quantitative analyses have raised concerns regarding its structural validity in Aboriginal and Torres Strait Islander communities. This paper aims to extend upon existing findings by analysing the factor structure of both the parent- and teacher-reported Strengths and Difficulties Questionnaire in this population across a broader age range than in previous studies.
View Article and Find Full Text PDFObjectives: To investigate the longitudinal associations between parental mental health symptoms within 4 weeks of birth, parenting behaviors at 1 year, and child general cognitive ability at 4.5-5 years in a sample of children born very preterm (VP). This study also examined whether these associations differed based on level of family social risk.
View Article and Find Full Text PDFJ Child Adolesc Psychopharmacol
June 2022
Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurodevelopmental conditions among school-age children. Early intervention and ongoing evaluation of treatment effectiveness are essential to minimize the life-long negative impact of ADHD. Neurocognitive functions have been reported to improve with pharmacological and cognitive training interventions for children with ADHD.
View Article and Find Full Text PDFObjectives: Children born very preterm (VP) are susceptible to a range of cognitive impairments, yet the effects of VP birth on long-term, episodic, and prospective memory remains unclear. This study examined episodic and prospective memory functioning in children born VP compared with their term-born counterparts at 13 years.
Method: VP ( = 81: born <30 weeks' gestation) and term ( = 26) groups were aged between 12 and 14 years.
Objective: To evaluate 13-year outcomes of a randomized controlled trial of preventive care (VIBeS Plus) for infants born very preterm and their parents and examine whether possible effects of intervention varied by family social risk.
Study Design: Families were randomized to an intervention arm (n = 61) or a standard care arm (n = 59). The intervention was delivered at home by psychologists and physiotherapists over the infants' first year, focusing on infant development and parental mental health.
Background And Objectives: To investigate brain regional white matter development in full-term (FT) and very preterm (VP) children at term equivalent and 7 and 13 years of age based on the ratio of - and -weighted MRI ( -w/ -w), including (1) whether longitudinal changes differ between birth groups or sexes, (2) associations with perinatal risk factors in VP children, and (3) relationships with neurodevelopmental outcomes at 13 years.
Methods: Prospective longitudinal cohort study of VP (born <30 weeks' gestation or <1,250 g) and FT infants born between 2001 and 2004 and followed up at term equivalent and 7 and 13 years of age, including MRI studies and neurodevelopmental assessments. -w/ -w images were parcellated into 48 white matter regions of interest.
Objectives: To compare the parenting environment and the relationships between parenting behaviors and concurrent child neurobehavioral outcomes at 2 years of corrected age between children born moderate-to-late preterm (MLP; 32-36 weeks of gestation) and at term (≥37 weeks of gestation).
Study Design: Participants were 129 children born MLP and 110 children born at term and their mothers. Mothers' parenting behaviors (sensitivity, structuring, nonintrusiveness, nonhostility) were assessed at 2 years of corrected age using the Emotional Availability Scales.
Objective: Mothers of children born very preterm (VP) are at increased risk of developing postnatal depression, anxiety, and post-traumatic stress symptoms. However, mental health disorder rates are rarely assessed in this population compared with full-term peers, and it is unclear if postnatal distress symptoms precede higher rates of maternal mental health disorders at 5 years post-birth in both birth groups.
Methods: Mothers of children born VP (n = 65; mean [SD] age at birth, 33.
Atypical motor coordination and cognitive processes, such as response inhibition and working memory, have been extensively researched in individuals with attention deficit hyperactivity disorder (ADHD). Oculomotor neural circuits overlap extensively with regions involved in motor planning and cognition, therefore studies of oculomotor function may offer unique insights into motor and cognitive control in ADHD. We performed a series of pairwise meta-analyses based on data from 26 oculomotor studies in ADHD to examine whether there were differences in performance on visually-guided saccade, gap, antisaccade, memory-guided, pursuit eye movements and fixation tasks.
View Article and Find Full Text PDFIn the human brain, the corpus callosum is the major white-matter commissural tract enabling the transmission of sensory-motor, and higher level cognitive information between homotopic regions of the two cerebral hemispheres. Despite developmental absence (i.e.
View Article and Find Full Text PDFVisual processing deficits have been widely reported in developmental dyslexia however the locus of cognitive dysfunction remains unclear. Here, we examined the neural correlates of perceptual decision-making using a dot-motion task and electroencephalography (EEG) and investigated whether presenting deficits were unique to children with dyslexia or if they were also evident in other, typically developing children with equally immature reading systems. Sixty-eight children participated: 32 with dyslexia (DD; 16 females); 21 age-matched controls (AM; 11 females) and 15 reading-matched controls (RM; 9 females).
View Article and Find Full Text PDFAgenesis of the corpus callosum (AgCC) is a congenital brain malformation characterized by the complete or partial failure to develop the corpus callosum. Despite missing the largest white matter bundle connecting the left and right hemispheres of the brain, studies have shown preserved inter-hemispheric communication in individuals with AgCC. It is likely that plasticity provides mechanisms for the brain to adjust in the context of AgCC, as the malformation disrupts programmed developmental brain processes very early on.
View Article and Find Full Text PDFThe corpus callosum is the largest white matter pathway connecting homologous structures of the two cerebral hemispheres. Remarkably, children and adults with developmental absence of the corpus callosum (callosal dysgenesis, CD) show typical interhemispheric integration, which is classically impaired in adult split-brain patients, for whom the corpus callosum is surgically severed. Tovar-Moll and colleagues (2014) proposed alternative neural pathways involved in the preservation of interhemispheric transfer.
View Article and Find Full Text PDFChildren born extremely preterm (EP, <28 weeks' gestation) or extremely low birth weight (ELBW, <1,000 g) are a vulnerable population at high risk of working memory impairments. We aimed to examine changes in the brain structural connectivity networks thought to underlie working memory performance, after completion of a working memory training program (Cogmed) compared with a placebo program in EP/ELBW children. This was a double-blind, placebo-controlled randomized trial (the Improving Memory in a Preterm Randomised Intervention Trial).
View Article and Find Full Text PDFObjectives: Subgroups of children may benefit more from working memory training than others. In this study, we aimed to examine whether response to the Cogmed Working Memory Training program differed for children with low IQ and elevated attention-deficit/hyperactivity disorder, emotional and behavioral symptoms, special health care needs, or by sex.
Methods: We used data from the Memory Maestros trial, a population-based randomized controlled trial of the Cogmed program delivered at school ( = 226) compared to usual teaching ( = 226) in grade 1 children (mean age 6.
The corpus callosum is the largest white matter pathway in the brain connecting the two hemispheres. In the context of developmental absence (agenesis) of the corpus callosum (AgCC), a proposed candidate for neuroplastic response is strengthening of intrahemispheric pathways. To test this hypothesis, we assessed structural and functional connectivity in a uniquely large cohort of children with AgCC (n = 20) compared with typically developing controls (TDC, n = 29), and then examined associations with neurobehavioral outcomes using a multivariate data-driven approach (partial least squares correlation, PLSC).
View Article and Find Full Text PDFObjective: Mothers of infants born very preterm (VPT) are at high risk of mental health difficulties. However, less is known about the course of fathers' depressive and anxiety symptoms over time, and the implications this may have for early parenting behaviors.
Methods: In total, 100 fathers of 125 infants born VPT (<30 weeks' gestation) completed questionnaires assessing depressive and anxiety symptoms shortly after their infant's birth, and when their infant reached term-equivalent age, 3 months, 6 months, and 12 months' corrected age.