Developmental Trajectory of Depressive Symptoms from Early Childhood through High School in Children and Adolescents with a High Intellectual Potential.

We aimed to explore the developmental trajectory of depressive symptoms in a national sample of French children with a high intellectual potential (HIP) seeking help from gifted organizations. Participants were drawn from a national retrospective survey sent to 1200 families with HIP children (IQ ≥ 130) from primary to high school and they answered a self-report questionnaire of a depression scale (MDI-C). The children's parents completed a self-report questionnaire collected on different stages of the child's school level, perinatality, psychomotor development, health, family's history, behavior, interpersonal relationships and daily activities, school performance, presence of learning disorders and remediation. Four hundred and twenty HIP children were eligible with an IQ ≥ 130 aged from 8 to 17 years-old, 49% with depressive symptoms and 51% with no depressive symptoms. Analysis of 136 variables from anamnestic fields based on the use of Spearman's ρ test (ρ) with a non-parametric correlations showed that "learning disabilities" are significantly related to depressive symptoms in different groups (primary p = 0.001, middle p = 0.02, high school p = 0.001) as well as "difficulties in psychomotor skills" during primary (p = 0.003) and middle school (p = 0.02). Good relationships with family as well as with peers are significantly negatively correlated with depressive symptoms from childhood to primary (p = 0.003) and high school (p = 0.02). Certain details of correlations between the MDI-C scale's subfactors and anamnestic variables were analyzed. The ANOVA test about the MDI-C scale showed provocation as a significant marker at middle school (F (1, 418) = 3.487, p = 0.03) and low self-esteem at high school (F (1, 418) = 3.337, p = 0.03). A holistic developmental approach allowed us to highlight the risk factors of depression with a developmental trajectory origin linked to disorders of social adjustment and psychomotor skills and to the importance of misdiagnosed learning disabilities because of giftedness. Our findings support the interest in an early identification of and intervention in depression risk to improve clinical decision making on the effect of giftedness on mental health outcomes.

Applying Rasch analysis in refinement and validation of interpersonal skills measure for gifted children.

Background: Interpersonal characteristics of gifted adolescents is important because of the potential influence on individuals' psychological health and future professional success. Understanding the interpersonal characteristics requires valid and reliable measures. This study attempted to explicitly describe the application of Rasch analysis in the validation and development process of an existing measure of interpersonal skills among gifted adolescent in Ohio. Methods: We extensively evaluated the psychometric properties of the 40-item scale measuring the interpersonal competence of adolescents among the gifted population in Ohio (N = 127) using Rasch analysis. Multiple aspects of reliability and validity were tested including dimensionality, rating scale functioning, and fit statistics. Results: The internal consistency reliability of the scale was confirmed with an adequate fit to the Rasch model. However, the scale demonstrates relatively poor performance in terms of unidimensionality with our sample. Also, the rating scale categories were confusing given that our sample could not effectively distinguish some adjacent categories. Corresponding refinements have been made and the revised scale formed a meaningful linear progression with improved performance on unidimensionality, rating scale functioning, and fit statistics. Conclusion: The study provided evidence that the construct of interpersonal skills is measurable. Based upon the original Interpersonal Competence Questionnaires consists of 40 items, the author extracted and piloted a refined measure consisting of 31 items that performed a meaningful, theoretically consistent linear progression measure that could be used to measure the level of interpersonal skills of gifted children.

The Effects of COVID-19 on the Emotional and Social Stability, Motivation and Attitudes of Gifted and Non-Gifted Children in Greece.

Gifted children exhibit advanced cognitive abilities, usually beyond their emotional development, which puts them at higher risk of the negative consequences of isolation. This study investigates the effects of distance learning and home confinement on the emotional and social stability, motivation, and attitudes of gifted and non-gifted children in Greece. Our study includes two subsets, from before (September 2017 to March 2020) and after the outbreak of the COVID-19 pandemic (April 2020 to March 2022). The analysis indicated that home confinement and distance learning caused children to create a stronger attachment with their parents, and it increased the involvement of parents in their child's school experience. Non-gifted children displayed high levels of certain attitudes (perfectionism, desire for acceptance, and condescending behavior) and demonstrated elevated motivation. Gifted children in the pre-COVID-19 period had already displayed increased levels of condescending attitude, which is assumed to be the result of already existing expectations from their parents. The pandemic further increased this attitude, as a result of the higher expectations of their parents. Overall, the study highlighted the importance of children to have more than one support system and the need for them to strengthen their self-image.

Designing a methodological system for the development and support of gifted and motivated students.

The paper was intended to develop a new methodological system and test its impact on the development of motivation and giftedness among children. The experiment was conducted among 1,200 children from grades 3, 7, and 10 by researchers from the Daryn Republican Applied Research Center of the Ministry of Education and Science of the Republic of Kazakhstan and L.N. Gumilyov Eurasian National University. The teaching methodology involved: interactive technologies; developing projects with faculty members; and conducting electives in the exact sciences, humanities, natural sciences, and the creative arts. The experiment lasted 4 months. Before and after the experiment, all respondents were evaluated by their instructors according to the following four criteria: academic giftedness, creative giftedness, social giftedness, and intellectual giftedness. The overall result demonstrated an increase in the level of giftedness to above-average values. Motivation levels observed among respondents in grades 3, 7, and 10 were 1.71; 1.72, and 1.54, respectively. The level for this criterion also reached above-average values. This implies that this technique is effective. This technique can already be applied not only in special schools for gifted children, but also in general educational institutions to achieve better results.

Intelligence and Executive Functions: A Comprehensive Assessment of Intellectually Gifted Children.

OBJECTIVE: Executive functions (EFs) play a key role in cognitive and behavioral functioning. Their multiple forms and implications for daily life behaviors mean they are sometimes equated with intelligence. Several elements even suggest that intellectually gifted children (IGC) may present better executive functioning than typical developing children (TDC, children with intelligence in the average range). However, no study has ever completely tested this hypothesis by a comprehensive assessment of EFs in IGC. METHOD: Results of 30 IGC and 35 TDC aged from 6 to 16 years old were compared through a comprehensive assessment of EFs (inhibition, flexibility, and planning), comprising performance-based and daily life measures. RESULTS: IGC did not differ from TDC in EF performance-based measures. However, they scored higher in parents' and some teachers' ratings, suggesting higher indicators of difficulties in daily life. CONCLUSIONS: Contrary to expectations, high intellectual level does not appear to be associated with superior EFs. Surprisingly, parents and teachers of IGC reported more complaints about their executive functioning in everyday life. We put forward different hypotheses to explain this contrast. Further research is needed to better understand this phenomenon, in which neuropsychology has a fundamental role to play.

Emotional Intelligence and Creative Self-Efficacy among Gifted Children: Mediating Effect of Self-Esteem and Moderating Effect of Gender.

Creative self-efficacy is a type of individual creative self-belief, which is an important predictor of creative activities and achievements. For gifted children who have high creative potential, the influencing factors of their creative self-efficacy need to be further explored. This study aimed to explore the relationship between gender, emotional intelligence, self-esteem, and creative self-efficacy in gifted children, with special attention on the mediating role of self-esteem and the moderating role of gender in the relationship between emotional intelligence and creative self-efficacy. Participants in this study included 226 gifted students aged 10-13 (135 boys and 91 girls) from experimental classrooms designed for gifted students in North China. The creative self-efficacy scale (CSE), the emotional intelligence scale (EIS), and the self-esteem scale (SES) were tested. The statistical results indicate that: (1) emotional intelligence significantly positively predicted creative self-efficacy in gifted children; (2) self-esteem partially mediated the link between emotional intelligence and creative self-efficacy; and (3) gender acted as a moderator for the mediation model, in which self-esteem played a complete mediating role in gifted boys, while the mediating role of self-esteem in gifted girls was not significant. The results of this study reveal the influential mechanism of creative self-efficacy in gifted children of different genders and may provide further implications for promoting the creative potential of gifted children.

Differences in Parents and Teachers' Perceptions of Behavior Manifested by Gifted Children with ADHD Compared to Gifted Children without ADHD and Non-Gifted Children with ADHD Using the Conners 3 Scale.

The potential for the misdiagnosis of giftedness as attention deficit/hyperactivity disorder (ADHD) has been well documented, as has the clinical diagnostic profile of individuals with both giftedness and ADHD. This study aimed to examine parents' and teachers' responses to the Conners 3 behavioral rating scale of gifted students with ADHD compared to gifted students without ADHD and non-gifted students with ADHD. Ninety-two children aged 6 to 16 years were included in the study. On the basis of clinical assessments utilizing the K-SADS, the WISC-V, and other neurocognitive tests, the students were split into three groups: gifted/ADHD (n = 35), ADHD (n = 35), and gifted (n = 22). The results revealed that mothers', fathers', and teachers' responses to the Conners 3 rating scale distinguished well between the gifted group and the other two groups, but not between the gifted/ADHD and ADHD groups. The learning difficulties observed by teachers was the most significant element that distinguished gifted/ADHD students from non-gifted ADHD students. Other results indicated that mothers and fathers reported more inattention problems in their gifted/ADHD children than teachers. Additionally, mothers tended to observe more learning and executive function problems in their gifted/ADHD children than teachers did. These findings highlight the importance of multiple informants complementing each other in the assessment process for ADHD in a gifted context to counteract the masking effect between giftedness and ADHD.

Graph Empirical Mode Decomposition-Based Data Augmentation Applied to Gifted Children MRI Analysis.

Gifted children and normal controls can be distinguished by analyzing the structural connectivity (SC) extracted from MRI data. Previous studies have improved classification accuracy by extracting several features of the brain regions. However, the limited size of the database may lead to degradation when training deep neural networks as classification models. To this end, we propose to use a data augmentation method by adding artificial samples generated using graph empirical mode decomposition (GEMD). We decompose the training samples by GEMD to obtain the intrinsic mode functions (IMFs). Then, the IMFs are randomly recombined to generate the new artificial samples. After that, we use the original training samples and the new artificial samples to enlarge the training set. To evaluate the proposed method, we use a deep neural network architecture called BrainNetCNN to classify the SCs of MRI data with and without data augmentation. The results show that the data augmentation with GEMD can improve the average classification performance from 55.7 to 78%, while we get a state-of-the-art classification accuracy of 93.3% by using GEMD in some cases. Our results demonstrate that the proposed GEMD augmentation method can effectively increase the limited number of samples in the gifted children dataset, improving the classification accuracy. We also found that the classification accuracy is improved when specific features extracted from brain regions are used, achieving 93.1% for some feature selection methods.

Do Intellectually Gifted Children Show Similar Physical Habits, Physical Fitness Levels and Self-Perceived Body Image Than Typically Developed Children?

Scientific evidence regarding whether intellectually gifted children show similar physical activity habits and physical fitness levels in comparison to typically developed children, is inconclusive. This is in part due to the scant research that has directly compared both groups of people. In this study, physical activity prevalence, self-perceived and objectively assessed physical fitness levels, and body image were assessed in a sample of 74 intellectually gifted children (mean age 11.6 ± 1.2 years). Seventy-four non-gifted children matched by age and sex were selected as a comparison cohort. Results indicated that both groups showed similar self-perceived and objectively assessed fitness levels. Physical activity habits were also similar, although significant differences were observed indicating that intellectually gifted girls were less active in comparison with non-gifted girls. Both cohorts perceived their body image accurately, although intellectually gifted children were much more satisfied with their physical appearance.

Abstract Graphic Creativity, Feelings about School, and Engagement in the School Environment: What Are the Interindividual Differences between Gifted and Non-Gifted Children?

This study examines interindividual differences between gifted and non-gifted children in the school environment. Three distinct measurement tools were used to enable a multimodal approach of gifted and non-gifted children with abstract graphic creativity, feelings about school and engagement in the school environment being considered. The results obtained from 328 children (including 45 gifted children) revealed that the gifted children obtained scores significantly higher than non-gifted children in terms of self-determination, feelings about school, and creativity. In addition, a gap appears among gifted children between their significantly higher scores for motivation and intellectual skills versus standard scores for their socio-affective development. Such results are consistent with the idea of asynchronous development, which is characteristic of gifted children (cognitive and conative vs. socio-affective sphere), offering perspectives for more adapted support for these pupils in elementary school.

Gifted Children through the Eyes of Their Parents:Talents, Social-Emotional Challenges, and Educational Strategies from Preschool through Middle School.

Few studies have been conducted analyzing the experience of raising a gifted child. The present exploratory study focused on examining the profiles of a sample of 44 gifted children, exploring aspects related to health status, precociousness of development, and peculiarities of their potentiality and peculiar emotional profile. Through the administration of a semi-structured questionnaire and an in-depth interview, the experience of parents of gifted children was also analyzed, deepening the challenges they have to face and the educational strategies they implement. The evidence that emerged helps shed light on specific aspects that characterize gifted children and have implications for family educational practices.

Altas habilidades/superdotação e ambiente escolar: uma revisão de literatura / High abilities/giftedness and school environment: A bibliographic review

Estudos realizados na literatura brasileira mostram o crescimento do número das produções de artigos e pesquisas referentes às crianças com altas habilidades/superdotação no contexto escolar. Este artigo trata-se de uma revisão de literatura de produções em plataformas digitais e, posteriormente, analisados e discutidos, com o intuito de agrupar informações científicas existentes sobre a temática e compreender quais são as lacunas existentes no processo de desenvolvimento das habilidades dessas crianças. Constata-se a existência de barreiras nas relações que permeiam o público pesquisado, principalmente quando se mencionam as interações no ambiente escolar. Pela análise dos resultados, pode-se concluir que os estereótipos e os mitos vinculados às crianças com altas habilidades influenciam na aprendizagem e em suas interações.

The Brazilian literature shows an increase in the number of studies and scientific research on children with high abilities/giftedness in the school context. This paper presents a bibliographic review of research founded in digital platforms, and afterwards, analyzed and discussed in the aim of grouping scientific information to extend the current knowledge on this theme and to understand the missing parts in the development of the abilities of this public. Furthermore, it is verified that these children present difficulties in their social interaction, mostly, in school. These results suggest that the stereotypes and the common sense attached to high abilities' children have influences in their learning and social interactions.

Metacognitive monitoring and metacognitive strategies of gifted and average children on dealing with deductive reasoning task.

In this paper, we inquire into possible differences between children with exceptionally high intellectual abilities and their average peers as regards metacognitive monitoring and related metacognitive strategies. The question whether gifted children surpass their typically developing peers not only in the intellectual abilities, but also in their level of metacognitive skills, has not been convincingly answered so far. We sought to examine the indicators of metacognitive behavior by means of eye-tracking technology and to compare these findings with the participants' subjective confidence ratings. Eye-movement data of gifted and average students attending final grades of primary school (4th and 5th grades) were recorded while they dealt with a deductive reasoning task, and four metrics supposed to bear on metacognitive skills, namely the overall trial duration, mean fixation duration, number of regressions and normalized gaze transition entropy, were analyzed. No significant differences between gifted and average children were found in the normalized gaze transition entropy, in mean fixation duration, nor - after controlling for the trial duration - in number of regressions. Both groups of children differed in the time devoted to solving the task. Both groups significantly differed in the association between time devoted to the task and the participants' subjective confidence rating, where only the gifted children tended to devote more time when they felt less confident. Several implications of these findings are discussed.

Examining the Relationships among Cognitive Ability, Domain-Specific Self-Concept, and Behavioral Self-Esteem of Gifted Children Aged 5-6 Years: A Cross-Sectional Study.

Although childhood is a critical period of development during which all children begin a lifelong process of self-discovery that shapes their identities, few studies have focused on the self-concept and self-esteem of young, gifted children. This study recruited 108 gifted children aged 5-6 years from Greece and their preschool teachers to explore the relationships among cognitive ability, domain-specific self-concepts, and global self-esteem. The Pictorial Scale for Perceived Competence and Social Acceptance was used to assess the domain-specific self-concepts of the participants, whereas behavioral manifestations of self-esteem were rated by the children's teachers using the Behavioral Academic Self-Esteem Scale. There were positive correlations among IQ, perceived scholastic competence, and global self-esteem. Hierarchical regression analysis indicated that significant predictors of global self-esteem were male gender, higher IQ, perceived scholastic competence, and perceived maternal acceptance. Additionally, there were gender differences in global self-esteem and perceived physical competence in favor of boys, whereas perceived maternal acceptance favored girls. This article discusses the need for practitioners working with gifted children to enact a comprehensive social-emotional learning curriculum in schools that promotes academic as well as personal and character strengths. Finally, the limitations of the study and suggestions for future research are also presented.

Explaining the high working memory capacity of gifted children: Contributions of processing skills and executive control.

Intellectually gifted children tend to demonstrate especially high working memory capacity, an ability that holds a critical role in intellectual functioning. What could explain the differences in working memory performance between intellectually gifted and nongifted children? We investigated this issue by measuring working memory capacity with complex spans in a sample of 55 gifted and 55 nongifted children. Based on prior studies, we expected the higher working memory capacity of intellectually gifted children to be driven by more effective executive control, as measured using the Attention Network Test. The findings confirmed that intellectually gifted children had higher working memory capacity than typical children, as well as more effective executive attention. Surprisingly, however, working memory differences between groups were not mediated by differences in executive attention. Instead, it appears that gifted children resolve problems faster in the processing phase of the working memory task, which leaves them more time to refresh to-be-remembered items. This faster problem solving speed mediated their advantage in working memory capacity. Importantly, this effect was specific to speed on complex problems: low-level processing speed, as measured with the Attention Network Test, did not contribute to the higher working memory capacity of gifted children.

Measuring Spatial Ability for Talent Identification, Educational Assessment, and Support: Evidence from Adolescents with High Achievement in Science, Arts, and Sports.

Background: Spatial ability (SA) is a robust predictor of academic and occupational achievement. The present study investigated the psychometric properties of 10 tests for measuring of SA in a sample of talented schoolchildren. Objective: Our purpose was to identify the most suitable measurements for SA for the purpose of talent identification, educational assessment, and support. Design: Our sample consisted of 1479 schoolchildren who had demonstrated high achievement in Science, Arts, or Sports. Several criteria were applied to evaluate the measurements, including an absence of floor and ceiling effects, low redundancy, high reliability, and external validity. Results: Based on these criteria, we included the following four tests in an Online Short Spatial Ability Battery "OSSAB": Pattern Assembly; Mechanical Reasoning; Paper Folding; and Shape Rotation. Further analysis found differences in spatial ability across the three groups of gifted adolescents. The Science track showed the highest results in all four tests. Conclusion: Overall, the study suggested that the Online Short Spatial Ability Battery (OSSAB) can be used for talent identification, educational assessment, and support. The analysis showed a unifactorial structure of spatial abilities. Future research is needed to evaluate the use of this battery with other specific samples and unselected populations.

Sleep of Children with High Potentialities: A Polysomnographic Study.

The involvement of sleep in cognitive functioning is well known, but only a few studies have examined objective sleep parameters in children with high intellectual potential (HP). The main objective of this study was to compare sleep characteristics of 33 children with high intellectual potentialities (HP) (median 10 years old, 64% of boys) compared to 25 controls (median 11 years old, 64% of boys) and assess the difference between children with a homogeneous vs. a heterogeneous intelligence quotient (IQ) (i.e., a difference ≥15 points between verbal and non-verbal IQ). All children underwent a one-night polysomnography, an evaluation of intellectual quotient (IQ) and filled standardized questionnaires. Using non-parametric tests to compare groups' characteristics, we found that children with HP had more heterogeneous IQ, more rapid eyes movement (REM) sleep and tended to have less stage 1 sleep than controls. They also had more insomnia and sleep complaints. The high amount of REM sleep in children with HP could be advantageous for learning and could partially explain their gift. This study highlights the necessity of investigating sleep disorders in children with HP during clinical routine and reinforces the hypothesis of the involvement of nocturnal sleep, and especially REM sleep, in daytime cognition and behavior.

Observation Criteria for Physical Education Teachers to Identify Gifted Children through Invasion Games.

Whilst in other curriculum subjects, it exists observation criteria to detect gifted pupils, there is a paucity of information in Physical Education. For that reason, we aimed to reveal the observation criteria for identifying gifted pupils in Physical Education in an invasion game. Physical Education (PE) talent was evaluated combining results of questionnaire to experts, parents, and students. A validated nomination scale (NSIFT) and the Game Performance Evaluation Tool (GPET) were used. The research approach used in this study was transversal, descriptive, and inferential. The talent pool was composed of 18 gifted pupils aged 8-14 (Mage = 11.67, SD = 1.53). The results showed that the most discriminating criteria to identify PE talent were found to be precocity in both execution and decision-making in the acquisition of tactical principles and tactical-technical skills. Getting free was the skill that they best mastered. In conclusion, the importance of tactical principles and decision-making as observation criteria is emphasized. Future studies should focus on developing mentoring programs in Physical Education.

Triagem de indicadores de altas habilidades/superdotação: estrutura fatorial / Giftedness indicators screening scale: factorial structure / Escala de identificación de las altas capacidades/superdotación: estructura factorial

A relevância da avaliação das altas habilidades/superdotação (AH/S) pode ser compreendida dentro de uma proposta que busca a valorização dos pontos fortes, aptidões e talentos dos indivíduos, assim como a prevenção de problemas sociais e emocionais decorrentes da ausência de identificação. Nesse sentido, pode-se afirmar sua proximidade com os pressupostos da Psicologia Positiva. Perante a lacuna de instrumentos específicos para avaliação desse fenômeno, a construção de uma escala de triagem de indicadores de AH/S foi iniciada. Dentre os estudos para investigação de suas qualidades psicométricas, o presente estudo apresenta os resultados da análise fatorial confirmatória. As respostas de 216 avaliações, feitas pelos professores de estudantes do 2º ao 9º ano do ensino fundamental, foram analisadas. Índices de ajuste adequados foram encontrados, confirmando um modelo teórico multidimensional, que abrange, na escala, cinco domínios em que a AH/S pode se manifestar: capacidade intelectual geral, habilidades acadêmicas específicas, liderança, criatividade e talento artístico. (AU)

The relevance of the assessment of giftedness can be understood within a proposal that seeks to highlight the strengths, aptitudes and talents of individuals, aiming for the prevention of social and emotional problems resulting from lack of identification. Accordingly, its proximity to the ideas of Positive Psychology can be affirmed. Considering the lack of specific instruments for evaluating this phenomenon, the development of a screening scale of indicators of giftedness was initiated. Among the studies to investigate its psychometric qualities, the present study presents the results of the confirmatory factorial analysis. The data from 216 evaluations, performed by teachers of students of grades 2 to 9 of elementary education, were analyzed. Adequate fit indices were found, confirming a multidimensional theoretical model, composed of five domains in which giftedness can be manifested: general intellectual ability, specific academic abilities, leadership, creativity and artistic talent. (AU)

La relevancia de la evaluación de las altas capacidades/superdotación (AH/S) puede ser comprendida dentro de una propuesta que busca la valorización de los aspectos positivos, aptitudes y talentos de los individuos, así como la prevención de problemas sociales y emocionales derivados de la ausencia de identificación. En ese sentido, se puede afirmar su cercanía con las suposiciones de la Psicología Positiva. Ante la falta de instrumentos para la evaluación de este fenómeno, se inició la construcción de una escala de identificación de altas capacidades. Entre los estudios para investigación de sus cualidades psicométricas, el presente objeto de investigación presenta los resultados del análisis factorial confirmatorio. Las respuestas de 216 evaluaciones, realizadas por los profesores de estudiantes del 2º al 9º año de la enseñanza primaria, fueron analizadas. Se han encontrado índices de ajuste adecuados, confirmando un modelo teórico multidimensional, que abarca cinco dominios en los que la superdotación puede manifestarse: capacidad intelectual general, habilidades académicas específicas, liderazgo, creatividad y talento artístico. (AU)

Structural brain network of gifted children has a more integrated and versatile topology.

Gifted children learn more rapidly and effectively than others, presumably due to neurophysiological differences that affect efficiency in neuronal communication. Identifying the topological features that support its capabilities is relevant to understanding how the brain structure is related to intelligence. We proposed the analysis of the structural covariance network to assess which organizational patterns are characteristic of gifted children. The graph theory was used to analyse topological properties of structural covariance across a group of gifted children. The analysis was focused on measures of brain network integration, such as, participation coefficient and versatility, which quantifies the strength of specific modular affiliation of each regional node. We found that the gifted group network was more integrated (and less segregated) than the control group network. Brain regional nodes in the gifted group network had higher versatility and participation coefficient, indicating greater inter-modular communication mediated by connector hubs with links to many modules. Connector hubs of the networks of both groups were located mainly in association with neocortical areas (which had thicker cortex), with fewer hubs in primary or secondary neocortical areas (which had thinner cortex), as well as a few connector hubs in limbic cortex and insula. In the group of gifted children, a larger proportion of connector hubs were located in association cortex. In conclusion, gifted children have a more integrated and versatile brain network topology. This is compatible with the global workspace theory and other data linking integrative network topology to cognitive performance.