Early Childhood Behavior Questionnaire Research Articles

Social Perception in the Infant Brain and Its Link to Social Behavior.

The current longitudinal study (n = 98) utilized a developmental cognitive neuroscience approach to examine whether and how variability in social perception is linked to social behavior in early human development. Cortical responses to processing dynamic faces were investigated using functional near-infrared spectroscopy at 7 months. Individual differences in sociability were measured using the Early Childhood Behavior Questionnaire at 18 months. Confirming previous work with infants and adults, functional near-infrared spectroscopy results show that viewing changing faces recruited superior temporal cortices in 7-month-old infants, adding to the view that this brain system is specialized in social perception from early in ontogeny. Our longitudinal results show that greater engagement of the right superior temporal cortex at 7 months predicts higher levels of sociability at 18 months. This suggests that early variability in social perception is linked to later differences in overtly displayed social behavior, providing novel longitudinal evidence for a social brain-behavior association.

Dorso-medial prefrontal cortex responses to social smiles predict sociability in early human development

Abstract Dorso-medial prefrontal cortex (dmPFC) plays a vital role in social cognition and behavior among humans. Enhanced responses in dmPFC when viewing social scenes predict increased levels of sociability in adults. The current longitudinal study examined the association between dmPFC response and sociability in early development. Brain responses were measured in response to social smiles and frowns using functional near-infrared spectroscopy (fNIRS) at 11 months. Individual differences in sociability were measured using the Early Childhood Behavior Questionnaire (ECBQ) at 18 months. Our longitudinal results show that greater engagement of the dmPFC when processing social smiles, but not frowns, at 11 months predicts higher levels of sociability at 18 months. This demonstrates that early variability in dmPFC response during positive social interactions is linked to individual differences in overtly displayed social behavior. This supports the view that dmPFC plays an important role in social cognition and behavior from early in human ontogeny.

Temperament in Toddlers With and Without Prelingual Hearing Loss.

The purpose of this study is to examine parent-reported ratings of temperament in toddlers with and without prelingual hearing loss. The parent-completed Early Childhood Behavior Questionnaire (ECBQ) was used to assess temperament in toddlers aged 18-36 months. Three dimensions of temperament were examined: surgency, negative affectivity, and effortful control. Analyses were conducted to (a) examine differences in temperament across toddlers with and without prelingual hearing loss; (b) examine possible associations between temperament, demographic, and communication factors; and (c) determine if the ECBQ is sensitive to differences in hearing, communication, and listening skills among toddlers with prelingual hearing loss. The parent-completed ECBQ revealed that toddlers with prelingual hearing loss differed from their hearing peers on some but not all dimensions of temperament. Specifically, children with prelingual hearing loss were rated as displaying higher levels of surgency and lower levels of effortful control but comparable levels of negative affectivity when compared to their hearing peers. Regression analyses revealed that chronological age and communication strategy predicted scores of effortful control in toddlers with prelingual hearing loss, whereas chronological age alone predicted scores of effortful control in toddlers with hearing. Finally, the ECBQ appears to contain "listening" items that skew (lower) levels of effortful control in toddlers with prelingual hearing loss, such that only the group effect of higher levels of surgency remained after removing these "listening" items. Correlations between the original and our modified ECBQ (removing the "listening" items) revealed strong associations, reflective of high construct validity. This was the first study to measure temperament in toddlers with prelingual hearing loss using the ECBQ. Our results revealed differences between children with and without prelingual hearing loss centering on the dimension of surgency. Examining differences in temperament during the toddler period of development may be particularly important and useful for predicting functional outcomes following prelingual hearing loss.

Associations among temperament characteristics and telomere length and attrition rate in early childhood.

There is growing interest in telomere length as an indicator of current and future health. Although early childhood is a period of rapid telomere attrition, little is known about the factors that influence telomere biology during this time. Adult research suggests that telomere length is influenced by psychological characteristics. This study's goal was to test associations among repeated measures of temperament and telomere length in a community sample of children (N = 602; 52% male, 73% non-Hispanic White, middle-to-high socioeconomic status) from infancy to age 3 years. Relative telomere length was assessed from DNA in saliva samples collected at infancy (M = 8.4 months), 2 years (M = 24.9 months), and 3 years (M = 37.8 months). Temperament was assessed via maternal report questionnaires administered at infancy (Infant Behavior Report Questionnaire-Revised) and ages 2 and 3 years (Early Childhood Behavior Questionnaire). Temperament was operationalized in two ways: using the established domains of negative affectivity, surgency/extraversion, and regulation/effortful control and using person-centered scores that identified three groups of children with similar profiles across domains (emotionally and behaviorally regulated; emotionally and behaviorally dysregulated; introverted and overcontrolled). Analyses revealed that greater regulation/effortful control was associated with longer telomere length across time points. Additionally, higher surgency/extraversion, beginning in infancy, was associated with decreased rate of telomere attrition. There were no sex differences in the relations between temperament and telomere measures. These findings suggest that, as early as infancy, temperament may influence telomere biology, with a potential protective effect of positive temperament characteristics on telomere erosion. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Serotonin transporter (5-HTT) gene network moderates the impact of prenatal maternal adversity on orbitofrontal cortical thickness in middle childhood.

In utero, the developing brain is highly susceptible to the environment. For example, adverse maternal experiences during the prenatal period are associated with outcomes such as altered neurodevelopment and emotion dysregulation. Yet, the underlying biological mechanisms remain unclear. Here, we investigate whether the function of a network of genes co-expressed with the serotonin transporter in the amygdala moderates the impact of prenatal maternal adversity on the structure of the orbitofrontal cortex (OFC) in middle childhood and/or the degree of temperamental inhibition exhibited in toddlerhood. T1-weighted structural MRI scans were acquired from children aged 6-12 years. A cumulative maternal adversity score was used to conceptualize prenatal adversity and a co-expression based polygenic risk score (ePRS) was generated. Behavioural inhibition at 18 months was assessed using the Early Childhood Behaviour Questionnaire (ECBQ). Our results indicate that in the presence of a low functioning serotonin transporter gene network in the amygdala, higher levels of prenatal adversity are associated with greater right OFC thickness at 6-12 years old. The interaction also predicts temperamental inhibition at 18 months. Ultimately, we identified important biological processes and structural modifications that may underlie the link between early adversity and future deviations in cognitive, behavioural, and emotional development.

Absence of Association between Child Temperament and Early Childhood Caries: A Cross-Sectional Study.

Early childhood caries (ECC) is a worldwide public health problem. The biological and behavioural determinants that are directly involved in ECC have been well documented; however, evidence on the effects of some psychosocial factors remains conflicting. This study aimed to assess the association between child temperament and ECC in Chilean preschoolers. Prior approval of the protocol was obtained from the ethics committee of Universidad de La Frontera (Folio N° 020_17), and all of those involved in the study provided signed informed consent forms. The cross-sectional study was conducted with 172 children aged 3 to 5 years attending preschools in Temuco, Chile. Each child's temperament was assessed based on parents' responses to the Early Childhood Behaviour Questionnaire. The outcomes assessed were caries prevalence and caries experience (dmft scores). The covariates included were socioeconomic position, cariogenic diet, prolonged breastfeeding, presence of dental plaque and hypoplasia. Logistic regression models were used to predict caries prevalence and negative binomial regression for caries experience. The prevalence of ECC was 29.1%, and the most frequent child temperament was 'effortful control'. Regression model analyses, adjusting for covariates, showed no evidence of an association between any domain of children's temperament (surgency, negative affect and effortful control) with the prevalence of caries or caries experience. This cross-sectional study found no association between childhood temperament and ECC in preschool children for this population. However, due to the specificity of this population, the association cannot be entirely ruled out. Further studies are needed to help understand the association between temperament and oral health, including the influences of family environment factors and culture.

Insecure attachment and internalizing behavior problems in growth discordant identical twins

BackgroundPsychosocial development in monochorionic (MC) twins born after selective fetal growth restriction (sFGR) has been unreported to date, despite its importance for daily functioning and future relationships. AimsTo investigate psychosocial development, attachment and school functioning in MC twins with sFGR and compare outcomes with the general population and between smaller and larger twins. Study designObservational cohort study. SubjectsMC twins with sFGR (defined as a birth weight discordance ≥20 %) born between 2002 and 2017 and aged 3–17 years. Outcome measuresMultiple parent report questionnaires: the Child Behavior Checklist (social-emotional development and behavior), the (Early) Childhood Behavior Questionnaire Very Short Form (temperament), the Attachment Insecurity Screening Inventory (attachment) and a school functioning questionnaire. ResultsMedian age for the 48 twin pairs was 11 (interquartile range (IQR) 8–13) years. Attachment insecurity for both twins was higher than in the general population for ambivalence/resistance (34 % (21/62) vs. 16 %, p = 0.024) and total attachment insecurity (35 % (22/62) vs. 16 %, p = 0.016). Smaller twins had more internalizing behavioral problems, i.e. negative emotions and behaviors turned inwards (22 % (10/46) vs. 11 % (5/46), p = 0.021) and a higher negative affect, i.e. more likely to experience negative emotions (3.2 (2.9–3.7) vs. 2.9 (2.2–3.2), p = 0.009) than larger twins, as well as a lower secondary school level (p = 0.031). ConclusionMC twins with sFGR have more ambivalent/resistant attachment insecurity following the complicated pregnancy course. Smaller twins have a tendency towards negative emotions and internalizing behaviors compared to larger twins, indicating an increased sensitivity for depression and anxiety.

Not sleeping soundly in early infancy is not bad.

This study sought to determine whether not sleeping soundly in early infancy predicted poor development. This complemented earlier studies of children aged 12months or older. Sleep/wake patterns of 35 Japanese infants (23 males) with a gestational age of 37< weeks were recorded at home using actigraphy. Families were registered with a laboratory-based database for infant research. Follow-up recordings were conducted at 3, 4, 6, 12, and 24months. Crawling was rated by mothers at 12months and used to create regular and irregular crawling groups. Temperament was scaled using the Japanese Infant Behaviour Questionnaire-Revised Questionnaire and the Japanese Early Childhood Behaviour Questionnaire. At 4 months, infants with regular crawling style had shorter night-time sleep than infants with irregular crawling style. However, at 12months, the former had longer motionless sleep at night compared to the latter. Before 6 months, infants with regular crawling style showed lower sleep efficiency, especially during the day, compared to those with irregular crawling style. In addition, the amount of night-time active sleep at 3 and 4 months were positively correlated with day-time activity, but not at 6 months. Short fragmental sleep in early infancy did not always predict poor development.

Person-centered profiles of child temperament: A comparison of coder, mother, and experimenter ratings

This study compared person-centered temperament group classifications derived from latent profile analyses on maternal reports, post-visit experimenter ratings, and task-based coder-rated behaviors at 18 months of age. Toddlers (N = 148) completed a laboratory visit with tasks intended to assess temperament and early regulatory abilities. Following the visit, experimenters rated child temperament using the Infant Behavior Record and coders rated toddlers’ approach-withdrawal, affect, and regulatory behaviors across several laboratory tasks. Mothers completed the Early Childhood Behavior Questionnaire. Fisher’s exact tests revealed that latent profiles characterized by temperamental inhibition and early regulatory abilities were quite consistent across assessments, whereas those characterized by surgent/exuberant qualities were less consistent. These results support a “components of variance” approach which suggests that different assessment methods produce both unique and overlapping information about child temperament.

The Reliability of the Thai Version of the Toddlers’ Temperament Questionnaire

Objective: To evaluate the reliability of the Early Childhood Behavior Questionnaire (ECBQ)-very short form, Thai version; and to investigate Thai toddlers’ temperamentsMaterials and Methods: The English version of the very short form ECBQ was translated into Thai language. The primary caregivers of 360 healthy, 18-36 months old children, were asked to fill the questionnaire from the period of April, 2018 to June, 2019. The scores were calculated to determine the child’s temperament. The reliability of the very short form ECBQ- Thai version was assessed by Cronbach’s alpha coefficient for internal consistency and Intraclass correlation coefficient (ICC) for inter-rater reliability, two-week and six-month test-retest reliability.Results: The Cronbach’s alpha coefficients were 0.627-0.692, which indicated questionable internal consistency, but almost reach those of the original ECBQ. The inter-rater ICCs were 0.463-0.670, which were comparable to those in the original English version. The two-week ICCs were 0.602-0.750, which indicated moderate reliability, whereas the six-month ICCs decreased to 0.459-0.602. However, these values almost reached those of the original English version. Most toddlers were reported to have a surgency temperament. Boys significantly had more surgency temperament and had higher mean surgency scores, whereas girls exhibited a more effortful-control temperament.Conclusion: The very short-form ECBQ, Thai version can be implemented in assessing Thai toddlers’ temperament. The majority of Thai toddlers in this study demonstrated surgency temperament. Boys tended to be more surgency, while girls tended to be more effortful control.

Stability and structure of infant and toddler temperament in two longitudinal studies in Germany

The present study investigated the factor structure and longitudinal stability of infant and toddler temperament measured with the Infant Behavior Questionnaire-Revised (IBQ-R) and the Early Childhood Behavior Questionnaire (ECBQ) in two German samples. Since the few studies using the German IBQ-R failed to replicate the commonly assumed three factors of infant temperament, another exploration of its factor structure was necessary. Whereas previous stability measurements are usually based on groups with relatively large age ranges, we investigated stability between concrete ages. In Study 1, the IBQ-R was applied in 9- and 12-month-old infants. In Study 2, both questionnaires were applied in 12-, 18-, and 24-month-olds. Factor analyses of the IBQ-R in both studies revealed a two-factor solution comprising Surgency/ Extraversion and Negative Affectivity, replicating earlier findings with German infants. The Orienting/ Regulation factor was not replicated for the IBQ-R, whereas analysis of the ECBQ revealed a three-factor solution for toddlers. The results showed stability of temperament ratings within infancy (Study 1) and toddlerhood (Study 2) as well as between the developmental periods within the second year of life (Study 2). Taken together, the present findings indicate that temperament stability emerges early in life and can be reliably measured using the IBQ-R and ECBQ, whereas the factor structure of temperament in infancy requires further validation.

Influences of Child Temperament and Household Chaos on Preschoolers' Emotional Eating.

Background: Emotional eating has been linked to child temperament and family environment factors, such as household chaos. However, few studies have examined how child and home characteristics independently and together influence children's overeating and undereating in response to negative emotions. Objective: The current study examined associations among child temperament, household chaos, and emotional eating in children 18-24 months of age, and interaction effects were also tested. Methods: The study included an analysis sample of 371 families participating in the larger STRONG Kids2 longitudinal birth cohort study (N = 468). The Early Childhood Behavior Questionnaire was used to assess child temperament at 18 months, and the Confusion, Hubbub, and Order Scale was used to assess disorganization in the household at 24 months. Child emotional eating at 24 months was assessed using parental reports of the Child Eating Behavior Questionnaire. Results: Negative affectivity and household chaos were independently associated with child emotional overeating. Negative affectivity, effortful control, and household chaos were significantly associated with emotional undereating. No significant interactions were found. Conclusions: Child temperament and household environment independently influence emotional eating in young children, highlighting the need to consider these factors in early prevention. Longitudinal studies are warranted to determine mechanisms that may be involved in these relations.

Relationship between the gut microbiota and temperament in children 1–2 years old in Chinese birth cohort

BackgroundUnderstanding the relationship between the gut microbiota and temperament can provide new insights for the regulation of behavioral intervention in children, which is still lacking research. This study aimed to examine the relationship between the gut microbiota and temperament in a cohort of children in 1 year and 2 years old. MethodsThis study included a total of 37 children with completed information, in which 51 samples at age 1 and 41 samples at age 2 were received respectively. We collected birth and demographic information. Parents reported their child's temperament characteristics using the Infant Behavior Questionnaire-revised (IBQ-R) and Early Childhood Behavior Questionnaire (ECBQ). Fecal samples were collected from each child at 1 and 2 years old and sequenced with MiSeq sequencer. Multiple linear regressions and linear mixed effect models were used to analyze the relationship between the temperament and their microbiota composition as well as the diversity and effect of gender or age on this relationship. ResultsAt age of year 2, Faecalibacterium was negatively associated with high-intensity pleasure and surgency. Bifidobacterium was negatively correlated with Perceptual sensitivity. Results showed no difference about three domains between year 1 and year 2, while gut microbiota showed diversity difference and genera difference. There was no gender and age difference on the relationship between temperament and the gut microbiota. ConclusionsTemperament was associated with the gut microbiota over time. The temperament remained stable and the relationship between the gut microbiota and temperament wasn't associated with age and gender.

Early temperament as a predictor of language skills at 40\u2009months

BackgroundMastering language involves the development of expressive and receptive skills among children. While it has been speculated that early temperament plays a role in the acquisition of language, the actual mechanism has not yet been explored. We investigated whether temperament at 18 months predicted expressive or receptive language skills at 40 months.MethodsA representative sample of 901 children and their mothers who were enrolled and followed-up longitudinally in the Hamamatsu Birth Cohort for Mothers and Children study was included in the analysis. Child temperament was measured at 18 months using the Japanese version of the Early Childhood Behavior Questionnaire. Expressive and receptive language skills were measured at 40 months using the Mullen Scales of Early Learning.ResultsThe multiple regression analysis, adjusting for potential confounders, suggested that higher motor activation (fidgeting) at 18 months was associated with lower expressive and receptive language skills at 40 months. Higher perceptual sensitivity was associated with higher expressive and receptive language skills at 40 months.ConclusionsSpecific temperament at 18 months of age predicted the development of the child’s expressive and receptive language skills at 40 months.

The still-face paradigm in Latin American mother–child dyads at 2 and 3 years: Effects of socioeconomic status and temperament

The still-face paradigm (SFP) is a common method in infancy used to assess emotion regulation and interactions when an adult (typically the caregiver) abruptly stops a positive interaction with a child and switches to a more neutral affect. The effect of this paradigm has been studied in different countries and age ranges, but research in Latin America and with toddlers (e.g., 2–3 years old) of different socioeconomic backgrounds is scarce. The current study analyzed caregiver–child interactions in this novel sample, to analyze the possibility of generalization of the typical response of this paradigm (i.e., less positive affect, reduced gaze, and more negative affect in children when parent affect changes). The sample consisted of 114 caregiver–child dyads from low to middle socioeconomic status (SES) (children’s Mage = 26.61 months, SD = 6.73, range = 18–36; 61 girls). The SFP modified version (i.e., on the floor and with a series of standardized toys), the temperament Early Childhood Behavior Questionnaire adapted for Argentina, and an SES scale were used. The typical SFP response was observed in Latin American children. In addition, older children and children with higher SES exhibited better general regulation, and there were weak associations with temperament. For gender differences, boys demonstrated more aggressive behaviors at Phase II. Results from this study suggest that children’s response to this paradigm is an unconditional response to the lack of social reinforcers and is only partially associated with social and individual variables.

The Effect of the 'Touch Screen-Based Cognitive Training' for Children with Severe Cognitive Impairment in Special Education.

Traditional education in special schools have some limitations. We aimed to investigate if the ‘touch screen-based cognitive training’ is feasible and effective for children with severe cognitive impairment (developmental age 18–36 months) in special education. In this case, 29 children were randomly allocated to intervention (n = 17, ‘touch screen-based cognitive training’, 30 min/session, 3 times/week, 12 weeks) and control (n = 12, traditional education) groups. Psychoeducational Profile-Revised (PEP-R), Early Childhood Behavior Questionnaire (ECBQ), Sequenced Language Scale for Infants (SELSI), Pediatric Evaluation of Disability Inventory (PEDI), and Goal Attainment Scale (GAS) were measured before and after 12 weeks of education. The ‘touch screen-based cognitive training’ was applicable in special education. When repeated measures analysis of variance (ANOVA) was used, significant groupⅹtime effect was found for GAS, and significant group effect was found for ECBQ (attentional shifting) and GAS. When adjusting for pre-education measurements, the intervention had a significant effect on the post-education measurements of ECBQ (attentional shifting) and GAS (p < 0.05). No relationship existed between the degree of improvements and the severeness of developmental delay in the measurements. ‘Touch screen-based cognitive training’ in special school was feasible and it improved cognition in children with severe cognitive impairment (developmental age 18–36 months), irrespective of the severeness of the developmental delay.

Cross-Cultural Differences in Temperament Between the United States and the People’s Republic of China: A Longitudinal Comparison

Aims: The present study assessed cross-cultural differences in temperament and temperament stability between children from the United States (US) and the People’s Republic of China (PRC). Goals of the study include examining differences in three temperament factors (surgency, negative affectivity, and regulation/effortful control), conducting comparisons on fine-grained dimensions of factors demonstrating significant cross-cultural differences, and comparing temperament stability from infancy to toddlerhood.&#x0D; Methodology: The US sample (N = 147) and PRC sample (N = 128) consisted of children whose temperament was longitudinally assessed in infancy and toddlerhood using the Infant Behavior Questionnaire-Revised Short Form (IBQ-R SF) and the Early Childhood Behavior Questionnaire Short Form (ECBQ SF). Primary analyses involved evaluating mean differences in the three temperament factors: surgency, negative affectivity, and regulation/effortful control, with additional statistical tests conducted to investigate fine-grained distinctions.&#x0D; Results: Findings revealed main effects of culture for each factor with culture x time interactions indicating negative affectivity significantly differed in toddlerhood, t(273) = -8.27, P &lt; .001, d = 1.00, 98.75% CI [-0.70, -0.37], and regulation in infancy, t(273) = -5.17, P &lt; .001, d = 0.62, 98.75% CI [-0.62, -0.22]. Specifically, the US sample exhibited higher surgency at both time points, lower negative affectivity in toddlerhood, and lower regulation in infancy. In addition, little difference was noted in temperament stability between the US and Chinese samples.&#x0D; Conclusion: Our findings support previous reports identifying cultural differences in temperament and highlight that differences are not constant across early childhood, but rather that as development unfolds, their nature is subject to change.

Temperament and sleep behaviors in infants and toddlers living in low-income homes

Temperament is a dynamic trait that can be shaped by maturity and environmental experiences. In this study, we sought to determine whether and the extent to which temperament was predicted by sleeping behaviors in an understudied sample of primarily Black and White infants and toddlers living in low-income homes (N = 150). Sleeping behaviors were assessed at 15–19 months of age with caregiver report of the Tayside Children’s Sleep Questionnaire. Temperament was examined as effortful control, negativity, and surgency with the Infant Behavior Questionnaire Very Short Form at 9–12 months of age and with the Early Childhood Behavior Questionnaire Short Form at 20–24 months of age. Covariates were maternal education, household income, and child sex and race. Continuous variables were standardized, then missing data from independent variables were multiply imputed in 20 datasets. Regression analyses showed that about 1 SD improvement in toddler sleep behaviors significantly predicted about 1/5 SD better toddler effortful control. However, sleep behaviors did not significantly predict toddler surgency or negative affect. This study shows that for a sample of infants and toddlers in low-income homes, how a child learns to regulate sleeping behaviors may influence the development of overall effortful control about six months later.

Associations between Turkish incarcerated mothers’ sensitivity and their co-residing children’s attachment: The moderating role of children’s temperament

ABSTRACT This study investigated the associations between incarcerated mothers’ sensitivity and their co-residing children’s attachment security. Furthermore, the moderating role of children’s temperament on the associations between maternal sensitivity and children’s attachment security was examined. The study sample consisted of 84 incarcerated mothers (Mage = 29.9, SD = 5.6) and their 12- to 43-month-old (M = 25.3, SD = 8.3) children who co-resided with them in prison facilities. Maternal sensitivity and child’s attachment were assessed by observation of mother-child interaction using the Maternal Sensitivity Scale and the Turkish Toddler Attachment Sort-60, respectively. Mothers reported their children’s temperamental features (i.e. negative emotionality and effortful control) using the Early Childhood Behavior Questionnaire. Results showed that maternal sensitivity was related positively to children’s secure attachment and negatively to children’s disorganized attachment. Furthermore, children’s negative emotionality and effortful control moderated the associations between maternal sensitivity and children’s attachment. Specifically, maternal sensitivity negatively predicted children’s avoidant attachment only for children with low negative emotionality and with high effortful control. Additionally, maternal sensitivity negatively predicted children’s anxious attachment only for children with low effortful control. Results are discussed in terms of sample-specific experiences, contextual factors, and the differential susceptibility hypothesis.

Effect of Anodal Transcranial Direct Current Stimulation Combined With Cognitive Training for Improving Cognition and Language Among Children With Cerebral Palsy With Cognitive Impairment: A Pilot, Randomized, Controlled, Double-Blind, and Clinical Trial.

About 30–45% of cerebral palsy (CP) patients have cognitive impairment. Previous studies showed the evidence that transcranial direct current stimulation (tDCS) may have some benefits in attention-deficit/hyperactivity disorder, autism spectrum disorder, and motor development in CP. The aim of this study is to evaluate the effect of tDCS on cognition, language, and activities of daily living (ADL) among children with CP with cognitive impairment. It was a pilot, randomized, controlled, double-blind, clinical trial in a tertiary pediatric hospital, and 13 children with CP and a cognitive age under 42 months were enrolled. tDCS group (n = 8) had active tDCS and cognitive training (20 min/session, total 20 sessions, for 12 weeks) and sham group (n = 5) had sham tDCS and cognitive training. Primary outcome was the Bayley Scales of Infant Development II (BSID II). Secondary outcomes were the Pediatric Evaluation of Disability Inventory (PEDI), the Laboratory Temperament Assessment Battery (Lab-TAB), the Early Childhood Behavior Questionnaire (ECBQ), the Korean version of MacArthur–Bates Communicative Development Inventories (M-B CDI-K), the Sequenced Language Scale for Infants (SELSI) and the Preschool Receptive-Expressive Language Scale (PRES). After intervention, the tDCS group showed significant improvements in all measurements (p < 0.05) except the M-B CDI-K (grammar), whereas the sham group only showed significant improvements in the Lab-TAB (manipulation domain), the ECBQ (attentional shifting), and the M-B CDI-K (comprehension). The between-group differences in the degree of post-intervention improvement were not statistically significant. The degree of improvement was associated with better baseline cognitive function and younger age (p < 0.05). There were no major adverse events after tDCS. The combined application of tDCS and cognitive training was feasible and associated with improvements in cognitive function, ADL, and language among children with CP with cognitive impairment. However, considering that it is a pilot study, further larger-scale systematic investigation is needed.Clinical Trial Registration: The trial was registered in the Clinical Research Information Service database, identifier: KCT0003023.