Executive functions and their relationship with age: Insights from a novel neuropsychological Assessment Battery in Children-a pilot study.

Executive functions (EFs) are a set of cognitive processes that enable individuals to manage and coordinate their thoughts and actions toward achieving specific goals. EFs include planning, organizing, initiating, and monitoring actions, and have been found to improve with age due to the maturation of the brain, especially during childhood. Therefore, our correlational study sought to determine the relationship between the performance in executive functions and age in 79 children (36 girls, 45.6%) throughout development, between the ages of 6 and 12 (mean = 9.25; SD = 2.05), using a battery designed in Chile: BEFE (Batería de Evaluación de las Funciones Ejecutivas: Executive Function Assessment Battery) based on traditional neuropsychological tests to evaluate Working Memory, Inhibitory Control, Cognitive Flexibility, and Planning skills. Our results showed various correlations between the variables age and performance in various behavioral parameters, demonstrating an increase in the number of correct responses (positive correlation) and/or a decrease in errors (negative correlation) with age (6-12) in the subtests that correspond to dimensions of Cognitive Flexibility (Semantic and Phonological Fluency, Card Sorting Game, and Tracing Tasks), Inhibitory Control (ENA-F and Sentence Completion), Working Memory (Audio-verbal WM Forward and Ordering, and Visuospatial WM Forward and Backward), and Planning (La Portada de Antofagasta and FISA Maps). These results are consistent with previous empirical evidence and support the notion of a developmental relationship between EF performance and age. Additionally, this study contributes to understanding EF development in culturally specific contexts, highlighting the importance of contextually relevant assessment tools in evaluating cognitive development.

A Controlled Clinical Trial on the Effects of Aquatic Exercise on Cognitive Functions in Community-Dwelling Older Adults.

Several therapies have been developed to reduce cognitive decline associated with aging. Aquatic exercises, which are widely used to enhance functional capacity, may play a role in stimulating cognitive functions. This study investigated the effects of a 3-month aquatic exercise program on cognitive functions in community-dwelling older adults. In this prospective, single-blinded, controlled clinical trial, 31 participants were allocated to either the experimental (aquatic exercises) or control (no-exercise) group. The intervention program consisted of exercises conducted twice a week in a 1.2 m deep indoor pool. The main outcome measures were cognitive functions, assessed using Raven's Progressive Matrices test and the Wisconsin Card Sorting Test. A repeated-measures analysis of variance was used to assess the impact of the exercise program. The effect sizes (η2p) were reported when a level of significance was achieved (p < 0.05). Compared with the control group, the participants who underwent aquatic exercises showed positive outcomes in Raven's Progressive Matrices test (p = 0.046; η2p = 0.131) and the Wisconsin Card Sorting Test (p = 0.001, η2p = 0.589). Complementary analyses of the Wisconsin Card Sorting Test indicated that the benefits of the aquatic exercise were observed in terms of the number of trials (p = 0.001, η2p = 0.478), number of errors (p = 0.001, η2p = 0.458), and number of non-perseverative errors (p = 0.001, η2p = 0.302). The results indicate that a period of three months of aquatic exercise was beneficial for stimulating specific aspects of the cognitive function of community-dwelling older individuals. Aquatic exercise should be prescribed to this population.

Systematic Review of Executive Function Stimulation Methods in the ADHD Population.

Background/Objectives: Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by elevated motor activity, impulsivity, and attention deficit. Approximately 5% of the population suffers from this disorder. Among the key explanations of ADHD, executive functions play an important role in understanding the symptomatology present in this disorder and in determining the main treatment strategies for affected patients. We present a systematic review that seeks to identify the treatment methods developed to support executive functions in individuals with ADHD. Methods: Articles were analyzed in the SCOPUS, PUBMED, and Science Direct databases. Initially, 739 articles were found. After applying inclusion and exclusion criteria, 30 articles remained and were included in the data extraction process. Results: Among the primary treatments identified, 14 studies propose psychological training for executive functions, 9 studies recommend medication, 5 studies suggest digital interventions, and 1 study advocates for sports as beneficial for executive functions. Conclusions: The data are discussed around the need to develop new proposals to enhance the executive functions of individuals with ADHD, thereby improving their performance in educational, personal, social, and family activities impacted by this disorder.

Cognitive influences on biosecurity measure compliance during a global pandemic.

Introduction: During the first years of the pandemic, COVID-19 forced governments worldwide to take drastic measures to reduce the spread of the virus. Some of these measures included mandatory confinements, constant use of masks, and social distancing. Despite these measures being mandatory in many countries and the abundance of evidence on their effectiveness at slowing the spread of the virus, many people failed to comply with them. Methods: This research explored the role of cognitive factors in predicting compliance with COVID-19 safety measures across two separate studies. Building on earlier work demonstrating the relevance of cognitive processes in health behaviour, this study aimed to identify key predictors of adherence to safety guidelines during the pandemic. Utilising hierarchical regression models, we investigated the influence of age, sex, cognitive control, cognitive flexibility (Study 1), working memory, psychological health, and beliefs about COVID-19 (Study 2) on compliance to biosafety measures. Results: Demographic variables and cognitive control were significant predictors of compliance in both studies. However, cognitive flexibility and working memory did not improve the models' predictive capacities. In Study 2, integrating measures of psychological health and beliefs regarding COVID-19 severity significantly improved the model. Further, interaction effects between age and other variables also enhanced the predictive value. Discussion: The findings emphasise the significant role cognitive control, age, psychological health, and perceptions about COVID-19 play in shaping compliance behaviour, highlighting avenues for targeted interventions to improve public health outcomes during a pandemic.

Processing Speed Partially Mediates Executive Function Impairments in Adolescents with Congenital Heart Disease: Results from a Prospective Cohort Study.

OBJECTIVE: To assess processing speed, fine motor function, attention, and executive function (EF) impairments in adolescents with complex congenital heart disease (CHD) who underwent open-heart surgery during infancy. STUDY DESIGN: We administered a comprehensive neuropsychological test battery evaluating 5 EF domains: working memory, inhibition, cognitive flexibility, fluency, and planning and primary neurodevelopmental processes (PNPs): processing speed, fine motor function, and attention. The sample included 100 adolescents with complex CHD from a previous University Children's Hospital Zurich study, with 104 healthy controls for comparison. We generated scores for each EF domain and computed an EF summary score. Group comparisons and associations were analyzed with multiple regressions accounting for parental education. Mediation analysis explored how PNPs mediate the effect between a CHD diagnosis and EF. RESULTS: In adolescents with complex CHD, all EF domains and the EF summary score were impaired (ß = 0.20 to 0.37, all P < .05). Furthermore, they exhibited slower processing speed (ß = 0.27, P < .01) than healthy controls, with no differences in attention (ß = -0.07, P = .34) and fine motor function (ß = 0.08, P = .34). Processing speed showed a strong association with the EF summary score (ß = 0.60, P < .001) and partially mediated the relationship between CHD diagnosis and the EF summary score (ß = 0.37, 95% CI [0.24, 0.50], P < .001). CONCLUSION: Adolescents with complex CHD show difficulties in EFs and processing speed. Notably, processing speed is strongly associated with EFs and partly accounts for EFs disparities between patients and healthy controls. Early detection and interventions for processing speed difficulties may improve EF outcomes in these patients.

Cross-cultural comparison of the performance on the Five-Point test between highly educated comparable samples of Argentina and South Africa.

OBJECTIVE: The study aimed to carry out a cross-cultural analysis by comparing Five-Point test scores for two different countries. The Five-Point test measures design fluency, an executive function, and is an inexpensive test that makes it more accessible to assessment settings, including under-resourced settings. METHODS: Adults in Argentina (n = 90) and South Africa (n = 90) with tertiary levels of education were tested on the Five-Point Test. ANOVA was applied to compare the scores of the two groups on the total number of unique designs produced (Total Unique Designs). RESULTS: The study found no significant differences in the Total Unique Designs scores between the two groups (p = .13; η = 0.01). Correlations between demographic variables and the Total Unique Designs scores varied slightly across both samples. CONCLUSIONS: Despite large cultural differences between both samples (language, race, religion, income) scores on this test did not differ significantly. These findings provide initial evidence of scalar equivalence on the test across these samples. Norms for the Five-Point Test Total Unique Designs scores might be used interchangeably between these two highly educated groups from different countries.

Trail making test - black & white (TMT B&W): Normative study for the Chilean population.

The trailmaking test (TMT) has an educational bias that makes it inapplicable to people with low levels of education due to its dependence on the alphabet. The TMT standardization is the only one available in Chile, and there is a need for alternative ways of using the TMT that do not depend on the level of education for its applicability. To determine the normative scores of the TMT - black & white (TMT B&W), considering sociodemographic factors in adult and elderly Chilean population. A total sample of 227 participants (133 healthy, 94 cognitively impaired) from the Ageing Mets cohort were recruited from three areas in Chile (Antofagasta, Santiago, and Puerto Montt). The TMT B&W was administered to all participants. A multiple regression model was used to generate normative data only in the cognitively healthy group, considering the effect of age, education and sex. A significant effect of age was found in the score of the TMT B&W Parts A and B. The level of education influenced the part B of the test; however, the completion rate of the TMT B&W parts A and B was over 90% in cognitively healthy people. Norms for the number of errors were obtained, and differences between groups were found after controlling for the effect of age and education. This study is the first to provide normative data for the Chilean version of the TMT B&W and will benefit clinical neuropsychologists by improving the procedures for more accurately assessing executive functions and its impairments.

Can we enhance working memory? Bias and effectiveness in cognitive training studies.

Meta-analyses have found that working memory (WM) can be improved with cognitive training; however, some authors have suggested that these improvements are mostly driven by biases in the measurement of WM, especially the use of similar tasks for assessment and training. In the present meta-analysis, we investigated whether WM, fluid intelligence, executive functions, and short-term memory can be improved by cognitive training and evaluated the impact of possible sources of bias. We performed a risk of bias assessment of the included studies and took special care in controlling for practice effects. Data from 52 independent comparisons were analyzed, including cognitive training aimed at different cognitive functions. Our results show small improvements in WM after training (SMD = 0.18). Much larger effects were observed when the analysis was restricted to assessment tasks similar to those used for training (SMD = 1.15). Fluid intelligence was not found to improve as a result of training, and improvements in WM were not related to changes in fluid intelligence. Our analyses did however indicate that cognitive training can improve specific executive functions. Contrary to expectations, a set of meta-regressions indicated that characteristics of the training programme, such as dosage and type of training, do not have an impact on the effectiveness of training. The risk of bias assessment revealed some concerns in the randomization process and possible selective reporting among studies. Overall, our results identified various potential sources of bias, with the most significant being the choice of assessment tasks.

Attention Deficits in Healthcare Workers with Non-Clinical Burnout: An Exploratory Investigation.

Burnout syndrome is characterized by exhaustion, cynicism, and reduced effectiveness. Workers with high burnout scores who continue their professional activities are identified as experiencing non-clinical burnout (NCB), which includes early stages where burnout symptoms (BNS) are present but not yet severe enough to necessitate work leave. This study aimed to investigate the impact of BNS on attention performance among healthcare workers (HCWs) at a COVID-19 reference hospital during the pandemic. The Maslach Burnout Inventory (MBI) was applied to assess the three burnout dimensions. The Continuous Visual Attention Test (CVAT) evaluated four different attention subdomains. Participants were divided into two groups based on their scores on the MBI: controls and NCB. Thirteen controls were matched with 13 NCB subjects based on age, sex, and HCW category. This sample (n = 26, 65% male) consisted of 11 physicians and 15 nursing professionals with a mean age of 35.3 years (standard deviation = 5.47). NCB subjects had higher impulsivity than controls. There were not any significant group differences in the other attention subdomains. We found significant correlations between impulsivity and all burnout dimensions: higher absolute scores in BNS are associated with higher impulsivity. We concluded that NCB leads to executive attention deficits.

Design of a video game for assessment of executive functions in deaf and hearing children.

This study investigates the effectiveness of a computerized cognitive test battery embedded within a video game to assess executive functions (EF) in deaf and hearing children. We evaluated a diverse cohort of 290 elementary school students aged 5 to 13 years (mean age = 8.86, SD = 1.96), comprising 74 sign language users, 14 Spanish-speaking deaf participants, 23 children with mixed communication methods, and 179 typically hearing individuals. Our statistical analysis focused on item discrimination, reliability, and criterion validation of the game-based assessments. The results indicated high reliability and effective discrimination of EF across the game's three primary stages. External validation was conducted using the Matrices Test, educational attainment, and age as variables. A significant positive correlation (r = 0.377, p < 0.001) was observed between the Matrices Test scores and game-based achievement scores. Furthermore, linear regression analysis revealed education (Standardized Beta = 0.339) and age (Standardized Beta = 0.179) as significant predictors of performance in these scores. This study underscores the value of integrating computerized cognitive assessments within a video game environment for comprehensive neuropsychological evaluations, highlighting its potential in diverse child populations.

A Naturalistic Intervention to Promote Executive Functions in Primary School Children: A Pilot Study.

Executive functions are related to the control of cognition, emotion, and behavior. They are essential to lifelong outcomes, including school performance. Naturalistic interventions embedded in children's daily activities and environments have greater effects. Therefore, this pilot study aimed to develop a naturalistic program suitable for schools, based on Goal Management Training (GMT), and to analyze its effects on executive functions and behavior. The participants consisted of 35 students from 2nd to 5th grade with executive dysfunction complaints. They underwent neuropsychological assessments of working memory, inhibition, cognitive flexibility, and intellectual capacity. Teachers and parents answered questionnaires on executive functions and behavior. Students were randomly assigned to an active control group, who participated in sessions on citizenship, and an experimental group (EG), stimulated through the executive function program, both with 16 sessions conducted by psychologists. After the intervention, all participants were reevaluated. The two-way Wald-type statistic (WTS) revealed greater improvement in executive functions for the EG, including working memory and inhibition. Additionally, parents and teachers, blind to the experimental conditions, reported improvements in some measures of executive functions and behavior. The results are encouraging, but further studies should test the intervention when implemented with larger samples and by teachers.

Cerebellar Cognitive Affective Syndrome in Mexican Pediatric Patients with Ataxia-Telangiectasia.

Ataxia-telangiectasia (A-T) is a disease caused by mutations in the ATM gene (11q22.3-23.1) that induce neurodegeneration Sasihuseyinoglu AS et al.  Pediatr Allergy Immunol Pulmonol 31(1):9-14, 2018, Teive HAG et al. Parkinsonism Relat Disord 46:3-8, 2018. Clinically, A-T is characterized by ataxia, mucocutaneous telangiectasia, immunodeficiency, and malignancy. Movement disorders have been the most described and well-studied symptoms of A-T. Other studies have reported visuospatial processing disorders, executive function disorders and emotional regulation disorders, which are clinical manifestations that characterize cerebellar cognitive affective syndrome (CCAS) Choy KR et al. Dev Dyn 247(1):33-46, 2018. To describe the neurocognitive and emotional state of pediatric patients with ataxia-telangiectasia and to discuss whether they have cerebellar cognitive affective syndrome. This observational, cross-sectional, and descriptive study included 9 patients with A-T from May 2019 to May 2021. A complete medical history was retrieved, and tests were applied to assess executive functions, visual-motor integration and abilities, language, psychological disorders, and ataxia. Six girls and 3 boys agreed to participate. The age range was 6 to 14 years. The participants included five schoolchildren and four teenagers. Eight patients presented impaired executive functioning. All patients showed some type of error in copying and tracing (distortion) in the performance of visual perceptual abilities. Emotional disorders such as anxiety and depression were observed in six patients. Eight patients presented with dyslalia and impairments in word articulation, all patients presented with ataxia, and seven patients used a wheelchair. All patients presented symptoms consistent with CCAS and had variable cognitive performance.

Leisure time activities in adolescents predict problematic technology use.

The problematic use of technology of children and adolescents is becoming a growing problem. Research has shown that excessive technology use predicts a variety of psychological and physical health problems. The aim of this study was to analyze the role of leisure time activities (structured and unstructured) in adolescents as a predictor of problematic technology use. Participants were 7723 adolescents, of which 55% were girls, from four Spanish-speaking countries (Chile, Spain, Mexico, and Peru) between the ages of 13 and 18 years. The evaluation instrument applied was the YOURLIFE project self-report questionnaire. Two executive functions were measured: goal setting and inhibitory control. Using structural equation modeling, findings indicated that structured leisure time activities predicted less PTU, whereas unstructured activities predicted more PTU, MLχ2 (69, N = 7723) = 806.60; CFI = 0.929, RMSEA = 0.042, and the model had good predictive capacity for PTU (R2 = 0.46). Structured and unstructured activities also showed indirect effects on PTU through executive functions. As adolescents spent more time in unstructured leisure activities, poorer goal setting, inhibitory control skills, and more PTU were found. The opposite was true for structured leisure time activities. Implications of structured leisure activities to develop executive functioning and to prevent PTU for adolescents are discussed.

A Delphi survey-based development and validation of cognitive-communication assessment tool for Indian preschoolers

ABSTRACT Purpose To address the need for a standardized assessment tool for assessing cognitive-communication abilities among Indian preschoolers, the current study aimed at describing a Delphi based development and validation process for developing one such tool. The objectives of the research were to conceptualize and construct the tool, validate its content, and assess its feasibility through pilot testing. Methods The study followed a Delphi approach to develop and validate the tool across four phases i.e. conceptualization; construction; content validation; and pilot testing. The first three phases were performed with a panel of six experts including speech-language pathologists and preschool teachers while the pilot testing was done with 20 typically developing preschoolers. A literature review was also conducted with the Delphi rounds to support the developmental process. Results The first two rounds of the Delphi aided in the construction of a culturally and linguistically suitable story-based cognitive-communication assessment tool with the memory (free recall, recognition, and literary recall) and executive function (reasoning, inhibition, and switching) related tasks relevant for preschoolers. The content validation of the tool was continued with the experts till the revisions were satisfactory and yielded an optimum Content Validity Index. The pilot test of the finalized version confirmed its feasibility and appropriateness to assess developmental changes in the cognitive-communication abilities of preschoolers. Conclusion The study describes the Delphi-based conceptualization, construction, content validation, and feasibility check of a tool to assess cognitive-communication skills in preschool children.

Executive and attentional functions in patients with migraine / Funções executivas e atencionais em pacientes com enxaqueca

INTRODUCTION: Migraine is a disease that affects the overall performance of the patient, especially attention and executive functions (EF), with a direct impact on the person's functionality, highlighting the importance of studies in order to minimize its damage. OBJECTIVE: The objective of this study was to evaluate if there is a link between migraine and executive and attentional functions. METHODOLOGY: Observational study (44 subjects; 29 migraineurs and 15 non-migraineurs) on attentional and executive functioning changes in migraine. Subjects over 18 years of age were included in the study, regardless of gender, recruited for convenience at CAM FAME, FAME and Centro AMA, primary recruitment centers, following the criteria of the International Classification of Headache Disorders (ICHD-3). The participants underwent neuropsychological tests that estimated executive and attentional functioning. For attention, the Psychological Attention the Assessment Battery (AAB) was used, and for EF, the Five-Digit Test (FDT) was used. Student's t test, ANOVA, Mann-Whitney and/or Kruskal-Wallis U test were used, whose analyzes fixed the type I error at 0.05. RESULTS: All AAB subtests pointed to a reduction in the attentional potential in migraineurs when compared to the control group. The FDT showed lowering in the migraineurs group subjects, when compared with the non- migraineurs group. Multivariate analysis identified a relationship between EF, Attention and migraine (p<0.05). CONCLUSION: migraineurs present a decrease in executive functioning and attentional skills and an increase in execution time when compared to non-migraineurs individuals

INTRODUÇÃO: A enxaqueca é uma doença que afeta o desempenho global do paciente, principalmente a atenção e as funções executivas (FE), com impacto direto na funcionalidade da pessoa, destacando a importância de estudos a fim de minimizar seus danos. OBJETIVO: O objetivo deste estudo foi avaliar se existe ligação entre enxaqueca e funções executivas e atencionais. METODOLOGIA: Estudo observacional (44 indivíduos; 29 com enxaqueca e 15 sem enxaqueca) sobre alterações de atenção e funcionamento executivo na enxaqueca. Foram incluídos no estudo indivíduos maiores de 18 anos, independente do sexo, recrutados por conveniência no CAM FAME, FAME e Centro AMA, centros primários de recrutamento, seguindo os critérios da Classificação Internacional de Cefaleias (ICHD-3). Os participantes foram submetidos a testes neuropsicológicos que estimaram o funcionamento executivo e atencional. Para atenção foi utilizada a Bateria de Avaliação da Atenção Psicológica (AAB) e para FE foi utilizado o Teste de Cinco Dígitos (FDT). Foram utilizados teste t de Student, ANOVA, Mann-Whitney e/ou teste U de Kruskal-Wallis, cujas análises fixaram o erro tipo I em 0,05. RESULTADOS: Todos os subtestes da AAB apontaram redução do potencial atencional em enxaquecosos quando comparados ao grupo controle. O FDT apresentou redução nos indivíduos do grupo com enxaqueca, quando comparado com o grupo sem enxaqueca. A análise multivariada identificou relação entre FE, Atenção e enxaqueca (p<0,05). CONCLUSÃO: enxaquecosos apresentam diminuição do funcionamento executivo e das habilidades de atenção e aumento no tempo de execução quando comparados a indivíduos não enxaquecosos

Executive performance and mathematic learning difficulties: association with sociodemographic aspects / Desempenho executivo e dificuldades de aprendizagem em matemática: associações com aspectos sociodemográficos / Desempeño ejecutivo y dificultades en el aprendizaje de las matemáticas: associaciones con aspectos sociodemográficos

Considering the association between Executive Functions (EF) and performance in mathematic, we aimed to analyse the low executive functions ­ which impact the individual's personal, social, and educational functioning ­, and their associations with this performance and sociodemographic aspects not already explored in students aged 8 to 12 years. One hundred and ten participants were evaluated using the MMSE, Coruja PROMAT, NEUPSILIN-INF, FDT and a Sociodemographic Questionnaire. Correlation and regression analysis indicated that low executive accomplishment influences performance in mathematics, especially considering working memory and cognitive flexibility. The variables gender, family income and parents' age were not related to the presentation of low EF. In contrast, the sociodemographic aspects of school shift and parents' education were shown to be related to executive performance, especially among public school students, revealing the importance of attention to these factors

Considerando a associação entre Funções Executivas (FE) e desempenho em matemática, objetivou-se analisar a baixa performance executiva ­ que impacta o funcionamento pessoal, social e educacional do indivíduo ­, e suas associações com esse desempenho e aspectos sociodemográficos ainda não explorados em escolares de 8 a 12 anos. Foram avaliados 110 participantes de ambos os sexos a partir dos instrumentos MEEM, Coruja-PROMAT, NEUPSILIN, FDT e Questionário Sociodemográfico. As análises de correlação e regressão empreendidas indicaram que o baixo desempenho executivo exerce influência sobre o desempenho em matemática, especialmente considerando a memória de trabalho e a flexibilidade cognitiva. As variáveis sexo, renda familiar e idade dos pais não apresentaram relação com baixa FE. Em contraponto, os aspectos sociodemográficos turno escolar e escolaridade dos pais se demonstraram fortemente relacionados à baixa performance executiva, especialmente nos estudantes de escola pública, revelando a importância da atenção a esses fatores

Considerando la asociación entre Funciones Ejecutivas (FE) y desempeño en matemáticas, objetivamos analizar la baja performance ejecutiva - que impacta en el funcionamiento personal, social y educativo del individuo - y sus asociaciones con este desempeño y aspectos sociodemográficos no explorados en escolares de 8 a 12 años. Ciento y diez participantes de ambos sexos fueron evaluados utilizando lo MEEM, Coruja-PROMAT, NEUPSILIN, FDT y Cuestionario Sociodemográfico. Los análisis de correlación y regresión indicaron que el bajo rendimiento ejecutivo influye en el rendimiento en matemáticas, especialmente considerando la memoria de trabajo y la flexibilidad cognitiva. Las variables sexo, renta familiar y edad de los progenitores no se relacionaron con baja FE. Por el contrario, los aspectos sociodemográficos turno escolar y educación de los progenitores estaban fuertemente relacionados con el bajo desempeño ejecutivo, especialmente en los estudiantes de escuelas públicas, revelando la importancia atención a estos factores

Unexpected cognitive similarities between older adults and young people: Scores variability and cognitive performances.

BACKGROUND: Increased interindividual variability in cognitive performance during aging has been proposed as an indicator of cognitive reserve. OBJECTIVE: To determine if interindividual variability performance in episodic memory (PAL), working memory (SWM), reaction time (RTI), and sustained attention (RVP) could differentiate clusters of differential cognitive performance in healthy young and older adults and search for cognitive tests that most contribute to these differential performances. METHODS: We employed hierarchical cluster and canonical discriminant function analyses of cognitive scores using the Cambridge Neuropsychological Test Automated Battery (CANTAB) to identify cognitive variability in older and young adults using the coefficient of variability of cognitive performances between and within groups. We also analyzed potential influences of age, education, and physical activity. RESULTS: Cluster analysis distinguished groups with differential cognitive performance and correlation analysis revealed coefficient of variability and cognitive performance associations. The greater the coefficient of variability the poorer was cognitive performance in RTI but not in PAL and SWM. Older adults showed diverse trajectories of cognitive decline, and better education or higher percentage of physically active individuals exhibited better cognitive performance in both older and young adults. CONCLUSION: PAL and SWM are the most sensitive tests to investigate the wide age range encompassing older and young adults. In older adults' intragroup analysis PAL showed greater discriminatory capacity, indicating its potential for clinical applications late in life. Our data underscore the importance of studying variability as a tool for early detection of subtle cognitive declines and for interpreting results that deviate from normality.

Mindfulness-Based Intervention Effect on the Psychophysiological Marker of Self-Regulation in Women With Endometriosis-Related Chronic Pain.

Endometriosis is a gynecological disease that involves a broad biopsychosocial compromise with the potential to create a negative vicious cycle. Despite the complexity of factors influencing women's improvement, most interventions investigated target just the peripheral nociceptive sources of endometriosis-related pain. An alternative is intervening in self-regulation, which can potentially influence multiple domains of the illness experience. The present study examines the effect of a brief Mindfulness-Based Intervention (bMBI) on attention and autonomic nervous system regulation in women with endometriosis-related pain. Also, explore the interaction between these self-regulation domains and the affective pain dimension. An exploratory analysis of the secondary outcomes of a pilot randomized controlled trial was performed. The vagally-mediated Heart Rate Variability (vmHRV) at rest, cognitive stress, and recovery was employed to measure autonomic regulation. The Flanker and Stroop tasks were used to estimate the attention domains. Results showed that bMBI (n = 26) significantly improved Flanker accuracy and Flanker and Stroop reaction time compared to the control group (n = 28). bMBI significantly increased vmHRV at rest and recovery after cognitive stress. Attention mediated the bMBI effect on affective pain improvement. Results suggest that bMBI improves self-regulation domains with the potential to develop a broad biopsychosocial benefit in the endometriosis context. PERSPECTIVE: This article demonstrates the positive impact of a brief Mindfulness-Based Intervention on attention and parasympathetic regulation in women suffering from endometriosis-related pain. This mindfulness-induced self-regulation improvement can benefit affective pain and potentially multiple psychophysiological processes relevant to endometriosis.

Efficacy of cognitive training on executive functions in healthy older adults: a systematic review with meta-analysis of randomized controlled trials.

OBJECTIVE: Systematically review randomized controlled trials on the efficacy of cognitive training on executive functions in healthy older people. MEASURES: The outcome measures were related to inhibitory control, working memory, and cognitive flexibility. RESULTS: Thirty-one trials were included in the systematic review and thirteen trials in the meta-analysis. In the overall analysis, the cognitive training enhanced inhibitory control when measured by the Stroop task (p < .001, d = 1.64) and working memory when measured by the Corsi Block task (p = .002, d = .16). A marginal significance was found for working memory in the Digit Span task - Forward (p = .06, d = .92). However, cognitive training did not enhance inhibitory control when measured by the Go/No-Go task (p = .76, d = .59), working memory when measured by the Digit Span - Backward (p = .72, d = .95) and N-Back (p = .10, d = .26) tasks, and cognitive flexibility when measured by Trail Making - Part B (p = .08, d = .27) and Semantic Fluency (p = .49, d = .06) tasks. CONCLUSION: Mixed evidence was found for inhibitory control and working memory; cognitive flexibility showed no evidence of improvement.

A psychometric study of an executive function assessment instrument (TDI-FE).

BACKGROUND: This study aims to present and discuss the psychometric properties of executive functions, which were measured using the TDI-FE instrument. The analysis encompasses its internal structure, potential sensitivity to fatigue factors, relationships with external criteria, and diagnostic accuracy. METHODS: The study sample comprised 382 students from Brazil, aged 6-8 years. Child development variables were screened using the TDI-FE and gold standard tests (Cancellation Attention and Trail Making Tests). The proposed scale comprised four activities: a test with fruit images with three tasks, and one memory game. RESULTS: The one-factor model of EF of the TDI-FE failed to fit to the data. However, fit substantially improved once a latent fatigue factor was controlled in the model. The latent factor of EF assessed by the TDI-FE tasks was coherently associated with a series of external variables, including two popular collateral measures of EF. The diagnostic accuracy was reasonable, and a cut-off of 37 points produced 70% of sensitivity and 60% of specificity. CONCLUSION: Results indicated that the TDI-FE demonstrated sound psychometric properties and diagnostic accuracy, then consisting of an efficient alternative for the assessment of EFs in early childhood education. The study also proved the need to control for response biases such as fatigue in the latent variable models of EF. The TDI-FE is notable because of its low cost and easy application, and it might fulfill a need for instruments for individuals from different contexts at this stage of development in Brazil.