Measures Of Executive Function Research Articles

Sociodemographic predictors and cross-cultural comparisons in tests performance from the Cambridge Neuropsychological Testing Automated Battery (CANTAB) among children aged 6-8 years from Montevideo, Uruguay.

Cross-culturally comparative data on measures of executive function (EF) are essential, but the 6-8-year group remains insufficiently described. This study examined the sociodemographic predictors of EF test performance employing the Cambridge Neuropsychological Testing Automated Battery (CANTAB). It also compared developmental trends in EF among children from Uruguay, the United States, and Mexico. EFs were assessed with the Intra-dimensional/Extra-dimensional shift, Spatial Span (SSP), and Stockings of Cambridge (SOC) tests from the CANTAB. The study sample consisted of 6-8-year-old children from the Salud Ambiental Montevideo (SAM) cohort in Uruguay. Differences between cohorts were examined, and we performed generalized linear regressions to assess the association between sociodemographic factors, and each EF domain. The final sample consisted of 525 participants (mean age in months 82.5 ± 6.0). Across all ages, SAM children had significantly lower performance in the SSP and SOC tasks compared to U.S. and Mexican children. On the Intra-dimensional/Extra-dimensional shift task, SAM children had similar scores to U.S. and Mexican children. Mother's intelligence quotient (IQ; β = 0.01; 95% CI [0.005, 0.02]), child's IQ (0.02 [0.02, 0.03]), the HOME total score (0.02 [0.01, 0.03]), as well as HOME subscales of accompaniment (0.13 [0.07, 0.20]), enrichment (0.11 [0.06,0.16]), and physical environment (0.07 [0.03, 0.10]) were positively associated with the span length (SSP task). Child's IQ (0.02 [0.01,0.03]) was positively associated with the number of problems solved on the SOC test. Uruguayan children perform lower in working memory and planning tests than U.S. children but similarly to Mexican children, while cognitive flexibility is consistent across all groups. Further, mother and child IQ, as well as the home environment, are important predictors of EF. These differences should be examined in the context of diverse cultural values and sociodemographic factors affecting CANTAB construct validity in this population. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Effects of soccer instruction on the executive functions and agility of children in early childhood.

Studies have shown that in open-skill sports the executive function of high-performing players is significantly higher than that of the control group. However, whether participation in soccer effectively improves executive function is unclear because previous studies lacked baseline measurements of executive function. Furthermore, agility, mostly developed in early childhood, is the most demanding component of physical fitness in open-skill sports, requiring sudden changes in body direction while running at full speed. However, no studies have examined the improvement in agility of young children participating in open-skill sports through comparison with a control group. This study aimed to clarify whether instruction in soccer, an open-skill sport, can effectively improve the executive function and agility of kindergarteners compared to a control group. In April 2020, 31 five-year-old children enrolled in kindergarten K in H prefecture in Japan were targeted as the intervention group and received soccer instruction for 12 weeks. In April 2020, a control group was established, consisting of 39 five-year-old children enrolled at the same kindergarten. Participants in both groups were measured for agility, inhibition, and working memory before and after (pre-post) soccer instruction for the intervention group. For each item, a two-way ANOVA of the group (intervention group・control group) x measurement period (pre-post) was performed, showing no significant interactions for working memory and agility. Because only the inhibition effect was significant, simple main effects were tested. Regarding inhibition, although the intervention group (M = 0.18, SD = 0.01) and the control group (M = 0.17, SD = 0.01) did not differ significantly in performance pre-intervention, the intervention group (M = 0.23, SD = 0.01) showed significantly better performance post-intervention compared to the control group (M = 0.19, SD = 0.01) (p < .01). Thus, soccer instruction improved kindergarteners' inhibition, to a level significantly higher than that of the control group. Still, no differences were found between groups regarding working memory and agility.

Executive function in children with neurodevelopmental conditions: a systematic review and meta-analysis.

Executive function (EF) delays are well documented in paediatric neurodevelopmental conditions (NDCs). There is no consensus about whether EF delay represents a transdiagnostic feature of NDCs. This systematic review and meta-analysis synthesized 180 studies reporting two or more NDC comparisons on EF, examined differences between NDCs, and the moderating effects of gender, age, publication year, DSM editions and assessment types. Studies using established EF measures across seven domains (attention, fluency, set-shifting, set-switching, response inhibition, planning and working memory) in participants under 18 were included. Summary effects were compared: (1) for all reported NDCs relative to control, (2) for each individual NDC relative to control and (3) between NDC groups. Results confirmed that EF delay was a transdiagnostic feature of neurodevelopmental delay, with a moderate effect size of delay across all NDCs (g = 0.56, 95% confidence interval (CI) 0.49-0.63) compared with control. This effect increased with comorbidities (g = 0.72, 95% CI 0.59-0.86), DSM-5 criteria and informant measures. Comparisons between NDCs revealed few differences: children with tic disorders (TD) showed smaller EF delays, children with attention-deficit/hyperactivity disorder (ADHD) showed larger delays in attention, response inhibition, planning and working memory compared with TD and specific learning disorders, while children with autism spectrum disorders showed greater delays on set-switching compared with ADHD. Findings support transdiagnostic models of neurodevelopment to further a developmentally sensitive science that can reveal how EF delays contribute to brain circuitry, symptom profiles and functioning, and ultimately support early interventions and outcomes for all children with NDCs.

Executive functioning and nonverbal cognitive factors associated with response to technology-assisted language intervention

ObjectiveTo explore potential differences in the relationship between executive function (EF) skills and language development when integrating augmentative and alternative communication technology into speech-language therapy for deaf/hard of hearing (DHH) children. MethodRandomized trial data were analysed to investigate this relationship among children who participated in a Technology-Assisted Language Intervention (TALI) compared to treatment as usual (TAU). Language samples were assessed for pre-post-intervention changes, including mean length of utterance in morphemes (MLU), mean turn length (MTL), and number of different words spoken (NDW). EF skills were measured with standardized parent-report assessment. ResultsThirty-seven DHH children were included (TALI n = 19 and TAU n = 18). Results of regression models indicated that higher EF skills were significantly (p < 0.05) associated with improvements in MLU, MTL, and NDW among children who received TAU. No significant associations between EF skills and any of the measures (MLU, MTL, NDW) were seen in children who received TALI. ConclusionThese results suggest that TALI may offer language learning support, particularly for DHH children with EF difficulties. Future research should investigate the direct relationship between EF measurements and language outcomes in TALI recipients. Establishing baseline EF measurements in DHH children could inform personalized strategies within language interventions and therapy.

Relationship between subjective cognitive functioning and fluid and crystallized cognitive abilities in bipolar disorder.

People with bipolar disorder (BD) often show inaccurate subjective ratings of their objective cognitive function. However, it is unclear what information individuals use to formulate their subjective ratings. This study evaluated whether people with BD are likely using information about their crystallized cognitive abilities (which involve an accumulated store of verbal knowledge and skills and are typically preserved in BD) or their fluid cognitive abilities (which involve the capacity for new learning and information processing in novel situations and are typically impaired in BD) to formulate their subjective cognitive ratings. Eighty participants diagnosed with BD and 55 control volunteers were administered cognitive tests assessing crystallized and fluid cognitive abilities. Subjective cognitive functioning was assessed with the Cognitive Failures Questionnaire (CFQ), daily functioning was rated using the Multidimensional Scale of Independent Functioning (MSIF) and the Global Assessment of Functioning Scale (GAF), and quality of life was assessed with the Quality of Life in Bipolar Disorder scale (QoL.BD). The BD group exhibited considerably elevated subjective cognitive complaints relative to controls. Among participants with BD, CFQ scores were associated with fluid cognitive abilities including measures of memory and executive function, but not to crystallized abilities. After controlling for objective cognition and depression, higher cognitive complaints predicted poorer psychosocial outcomes. Cognitive self-reports in BD may represent a metacognitive difficulty whereby cognitive self-appraisals are distorted by a person's focus on their cognitive weaknesses rather than strengths. Moreover, negative cognitive self-assessments are associated with poorer daily functioning and diminished quality of life.

Associations Between Hydration Status and Executive Function in Middle-Aged and Older Adults: Findings from the Nationally Representative Health and Retirement Study

The purpose of the current study is to examine the association between hydration status and cognitive function in middle-aged and older adults, drawing from a large, nationally representative sample in the United States and using a comprehensive set of executive function performance measures. We utilized data from the Health and Retirement Study to conduct twelve, three-stage hierarchical regressions on hydration status and executive function performance of older adults. Cognitive performance scores on the Trail Making A, Symbol Digit Modalities, and Letter Cancellation tests significantly differed by hydration status, and these outcomes follow a curvilinear pattern, such that performance scores are lower for those who are hyper-hydrated or dehydrated relative to those who are euhydrated or near-dehydration. Our study’s findings are consistent with prior studies examining the impact of serum osmolarity on cognitive performance. Specifically, a curvilinear pattern was associated with speed of processing tests of executive function. Overall, hydration status is associated with curvilinear patterns of performance on executive function measures, specifically Trail Making A, Symbol Digit Modalities, and Letter Cancellation Tests.

Exploratory Factor Analysis and Convergent Validity of the Adult Executive Function Inventory (ADEXI).

The Adult Executive Functioning Inventory (ADEXI)-a short, practical, self-report questionnaire accessible across diverse adult populations and languages-was used to assess executive functions (EFs), primarily inhibition and working memory. To examine the construct validity of the ADEXI Hebrew version through exploratory factor analysis (EFA) and convergent validity by correlating scores with similar measures of EF. Cross-sectional study using online anonymous surveys. Nonclinical sample of 239 adults, 74.1% women, ages 18 to 80 yr (Mage = 44.19 yr, SD = 12.89). The Hebrew version of the 14-item ADEXI, a demographic questionnaire, and the Dysexecutive Questionnaire (DEX). Descriptive statistics, Cronbach's α EFA using varimax rotation, and Pearson's correlations were used. Total internal consistency was good (α = .86). Unlike the two factors in the original English version, our construct validity through EFA revealed three factors-inhibition, working memory, and, uniquely, flexibility-that accounted for 55.71% of the variance. Convergent validity was supported by medium to large significant correlations (r =.29-.76) between the ADEXI and the DEX subscales and total scores. Our findings offer psychometric evidence to support using the Hebrew version of the ADEXI for EF assessments in adult Hebrew-speaking populations. Plain-Language Summary: The Adult Executive Functioning Inventory (ADEXI) assesses three key components: inhibition, working memory, and cognitive flexibility. In this study, we examined the construct validity of the Hebrew version of the ADEXI to assess executive functions. Our findings support using the ADEXI in Hebrew-speaking populations. The ADEXI offers occupational therapy practitioners serving Hebrew-speaking populations in their practice a validated tool for assessing executive functions.

Modifiable dementia risk factors associated with objective and subjective cognition.

Early detection of both objective and subjective cognitive impairment is important. Subjective complaints in healthy individuals can precede objective deficits. However, the differential associations of objective and subjective cognition with modifiable dementia risk factors are unclear. We gathered a large cross-sectional sample (N=3327, age 18 to 84) via a smartphone app and quantified the associations of 13 risk factors with subjective memory problems and three objective measures of executive function (visual working memory, cognitive flexibility, model-based planning). Depression, socioeconomic status, hearing handicap, loneliness, education, smoking, tinnitus, little exercise, small social network, stroke, diabetes, and hypertension were all associated with impairments in at least one cognitive measure. Subjective memory had the strongest link to most factors; these associations persisted after controlling for depression. Age mostly did not moderate these associations. Subjective cognition was more sensitive to self-report risk factors than objective cognition. Smartphones could facilitate detecting the earliest cognitive impairments. Smartphone assessments of cognition were sensitive to dementia risk factors. Subjective cognition had stronger links to most factors than did objective cognition. These associations were not fully explained by depression. These associations were largely consistent across the lifespan.

Physical Activity in Mild Vascular Cognitive Impairment: Results of the AFIVASC Randomized Controlled Trial at 6 Months.

Vascular cognitive impairment is frequent, in mild (mVCI) or severe forms (vascular dementia). To do a randomized controlled-trial to evaluate the impact of physical activity on cognition (primary outcome), neurocognitive measures, quality of life, functional status, and physical function (secondary outcomes), in patients with mVCI. A hundred and four patients with mVCI (mean age 71.2 years; 53 women) were randomized for a six-month intervention of moderate physical activity (60-minute sessions, 3 times/week) (n = 53) or best-practice "usual care" (n = 51). Comprehensive evaluations of primary and secondary outcomes included an objective measure of physical activity through accelerometry at baseline and after intervention. Mean session attendance was 58%. Adverse events were negligible. After 6 months, no significant primary outcome change was observed, either in the intervention or 'usual care' group. The intervention group improved significantly in some secondary outcomes in physical function - aerobic capacity (U = 403; p = 0.000) and agility (U = 453; p = 0.005) after 6 months. Regardless of randomization arm, a post-hoc analysis based on fulfilling at least 21.5 minutes/day of moderate or 10.7 minutes/day of vigorous physical activity (World Health Organization-WHO standards) revealed improvements. These were not only in motor capacity but also on the global measure of cognition, executive functions and memory. Physical activity was safe and beneficial regarding domains of physical function. No significant cognitive decline was registered over 6-months, regardless of intervention allocation. Larger samples, longer follow-ups and focus on intervention adherence are needed to fully analyze the impact of WHO recommendations for physical activity in mVCI populations.

Inhibitory control and working memory predict rhythm production abilities in patients with neurocognitive deficits

Deficits in rhythm perception and production have been reported in a variety of psychiatric, neurodevelopmental and neurologic disorders. Since correlations between rhythmic abilities and cognitive functions have been demonstrated in neurotypical individuals, we here investigate whether and how rhythmic abilities are associated with cognitive functions in 35 participants with neurocognitive deficits due to acquired brain lesions. We systematically assessed a diverse set of rhythm perception and production abilities including time and beat perception and finger-tapping tasks. Neuropsychological tests were applied to assess separable cognitive functions. Using multiple regression analyses we show that lower variability in aligning movements to a pacing sequence was predicted by better inhibitory control and better working memory performance. Working memory performance also predicted lower variability of rhythmic movements in the absence of an external pacing sequence and better anticipatory timing to sequences with gradual tempo changes. Importantly, these predictors remained significant for all regression models when controlling for other cognitive variables (i.e., cognitive flexibility, information processing speed, and verbal learning ability) and potential confounders (i.e., age, symptom strength of depression, manual dexterity, duration of illness, severity of cognitive impairment, and musical experience). Thus, all rhythm production abilities were significantly predicted by measures of executive functions. In contrast, rhythm perception abilities (time perception/beat perception) were not predicted by executive functions in this study. Our results, enhancing the understanding of cognitive underpinnings of rhythmic abilities in individuals with neurocognitive deficits, may be a first mandatory step to further potential therapeutic implications of rhythm-based interventions in neuropsychological rehabilitation.

The effect of fruits and vegetables on children's mental and cognitive health: A systematic review of intervention studies and perspective for future research.

ObjectiveTo synthesize evidence from fruit and vegetable intervention studies investigating mental and/or cognitive health outcomes in children ≤10 years. Our aim was to understand the efficacy of such interventions in improving measures of cognitive performance or mental health, and to identify successful intervention elements to inform future research. Research MethodsWe conducted a systematic search of Cochrane, Embase, PubMed, and CINAHL databases for articles published before August 2022 (PROSPERO registration: CRD42022356571). A narrative synthesis was conducted according to SWiM (Synthesis without Meta-Analysis) guidelines. ResultsFrom 4686 articles identified, only 7 of the 17 full texts screened were included in the final review. No studies investigated the efficacy of interventions using ‘whole’ fruits or vegetables. Six studies examined the effects of blueberries using drinks made from fresh (1 cup) or freeze-dried (30g) blueberries, and one study evaluated a mulberry powder-based drink. Sample sizes ranged from 14-54, and most studies were acute interventions with outcomes measured in a 2–3-hour window (n=6). Through a narrative synthesis of direction of responses, measures of executive function appeared sensitive to intervention effects in both acute and longer-term settings. Some concerns with risk of bias were evident according to the ROB2 tool, related to incomplete reporting of methodological aspects. ConclusionsThe studies identified through this systematic review could not directly address the planned research question, resulting in a poor certainty of evidence. Future research with whole fruit and vegetable interventions could better inform population health strategies for improved mental and cognitive health outcomes in children.

Maternal Depressive Symptoms and Risk for Childhood Depression: Role of Executive Functions

Offspring of mothers with depression are at increased risk for executive function (EF) deficits and later depressive symptoms, but limited studies examined EF as an intermediary pathway. This study examined the role of EF in mediating the association between maternal and child depressive symptoms. Data were from a longitudinal birth cohort consisting of 739 participants followed from the antenatal period for 12 years. Mothers completed the Edinburgh Perinatal Depression Scale at 26-28 weeks' gestation, at 3 months, and 24 months postpartum. At 8.5-10 years, children self-reported the Children's Depression Inventory-2. Task-based and parent-reported EF measures were collected at four timepoints between 3.5 and 8.5 years. Latent growth curve models examined antenatal depressive symptoms and its trajectory in contributing to cold (i.e., cognitive) and hot (i.e., affective) EF. We then assessed the extent to which EF mediated this association. Maternal depressive symptoms did not directly predict depressive symptoms in late childhood. Antenatal depressive symptoms predicted lower cold (ß = -0.13, 95% CI= -0.25, -0.004) and hot EF (ß = -0.26, 95% CI= -0.38, -0.15). Deficits in cold EF (ß = -0.26, 95% CI = -0.41, -0.11) acted as an intermediary path to depressive symptoms, while hot EF mediated the association between maternal and child depressive symptoms, forming an indirect path that accounted for 37.5% of the association. Deficits in hot EF may be a pathway in explaining the intergenerational transmission of depression. The finding suggests fostering EF skills as a potential strategy for at-risk children.

Beyond brain injury: Examining the neuropsychological and psychosocial sequelae of post-traumatic epilepsy.

This study investigates neuropsychological and psychosocial outcomes in patients with traumatic brain injury (TBI) and post-traumatic epilepsy (PTE) compared to a healthy control group. Utilizing a quasi-experimental cross-sectional design, the research involved patients with TBI and PTE referred from a Taiwanese medical center. An age- and education-matched control group of healthy adults without traumatic injuries was also recruited. The study involved analyzing retrospective medical records and applying a comprehensive suite of neuropsychological tests and psychosocial questionnaires. Executive function measures revealed significantly reduced performance in both the TBI and PTE groups compared to controls. Specifically, the MoCA scores were lowest in the PTE group, followed by the TBI group, and highest in the controls. Measures of subjective symptomatology showed comparably elevated levels in both the TBI and PTE groups relative to controls. The research suggests that PTE may intensify the difficulties faced by individuals with TBI, but its impact on overall recovery might not be significant, considering the trajectory of the brain injury itself. Notably, the MoCA results indicate that cognitive deficits are more pronounced in PTE patients compared to those with TBI, underscoring the necessity for targeted neuropsychological assessments. Further investigation is essential to explore PTE's broader neuropsychological and psychosocial impacts. These findings advocate for tailored care strategies that address both neuropsychological and psychosocial needs, ensuring comprehensive management of TBI and PTE.

Concurrent Validity of Performance-Based Measures of Daily Functioning with Cognitive Measures and Informant Reported Everyday Functioning.

Despite the substantial need for reliable and valid assessment of functional ability in older adults, there is currently limited research on the emergence of early functional declines during prodromal dementia stages, such as subjective cognitive decline (SCD) and mild cognitive impairment (MCI). This study uses novel performance-based assessments to characterize subtle, yet clinically meaningful, changes in functional ability. A sample of 93 older adults classified as cognitively unimpaired (CU; n = 30, Mage = 73.57 ± 6.66), SCD (n = 34, Mage = 72.56 ± 6.43), or MCI (n = 29, Mage = 78.28 ± 7.55) underwent neuropsychological testing along with an informant-rated daily functional skills measure (Assessment of Functional Capacity Interview). Participants also completed the Night Out Task (NOT), an open-ended performance-based measure of functional assessment, and the Financial Capacity Instrument-Short Form (FCI-SF) that assesses financial skills. The MCI group performed worse on the NOT and FCI-SF relative to SCD and CU. NOT and FCI scores were associated with measures of global cognitive function, executive function, processing speed, language and memory, and FCI-SF overall score was correlated with informant-rated functional ability. The NOT and FCI-SF were also predictive of informant-reported daily functioning over and above traditional cognitive data and demographics. Performance-based measures of IADL may allow for earlier detection of subtle functional changes that might not be adequately captured by traditional measures. The measurement of early functional changes is an important global outcome to evaluate the efficacy of interventions in dementia research.

Combined cognitive assessment and automated MRI volumetry improves the diagnostic accuracy of detecting MCI due to Alzheimer's disease

BackgroundMild cognitive impairment (MCI) confers a high annual risk of 10–15 % of conversion to Alzheimer's disease (AD) dementia. MRI atrophy patterns derived from automated ROI analysis, particularly hippocampal subfield volumes, were reported to be useful in diagnosing early clinical stages of Alzheimer's disease. ObjectiveThe aim of the present study was to combine automated ROI MRI morphometry of hippocampal subfield volumes and cortical thickness estimates using FreeSurfer 6.0 with cognitive measures to predict disease progression and time to conversion from MCI to AD dementia. MethodsBaseline (Neuropsychology, MRI) and clinical follow-up data from 62 MCI patients were analysed retrospectively. Individual cortical thickness and volumetric measures were obtained from T1-weighted MRI. Linear discriminant analysis (LDA) of both, cognitive measures and MRI measures (hippocampal subfields, temporal and parietal lobe volumes), were performed to differentiate MCI converters from stable MCI patients. ResultsOut of 62 MCI patients 21 (34 %) converted to AD dementia within a mean follow-up time of 74.7 ± 36.8 months (mean ± SD, range 12 to 130 months). LDA identified temporal lobe atrophy and hippocampal subfield volumes in combination with cognitive measures of verbal memory, verbal fluency and executive functions to correctly classify 71.4.% of MCI subjects converting to AD dementia and 92.7 % with stable MCI. Lower baseline GM volume of the subiculum and the superior temporal gyrus was associated with faster disease progression of MCI converters. ConclusionCombining cognitive assessment with automated ROI MRI morphometry is superior to using a single test in order to distinguish MCI due to AD from non converting MCI patients.

Aerobic exercise and cognitive function in chronic severe traumatic brain injury survivors: a within-subject A-B-A intervention study

BackgroundFollowing acute and sub-acute rehabilitation from severe traumatic brain injury (TBI), minimal to no efficacious interventions to treat ongoing cognitive deficits are available. Aerobic exercise is a non-invasive behavioral intervention with promise to treat cognitive deficits in TBI populations.MethodsSix individuals, aged 24–62 years, with chronic (> 8 months since injury) severe (Glasgow Coma Scale of 3–8) TBI were recruited from two outpatient rehabilitation centers. In an A-B-A study design, 20-weeks of supervised aerobic exercise interventions were delivered three times per week (phase B) in addition to participants typical rehabilitation schedules (phases A). The effect of phase B was tested on a trail making test part B (primary outcome measure of executive function) as well as objective daily physical activity (PA), using both group level (linear mixed effect models) and single subject statistics.ResultsFive of six participants increased trail-making test part B by more than 10% pre-to-post phase B, with three of six making a clinically meaningful improvement (+ 1SD in normative scores). A significant main effect of time was seen with significant improvement in trail-making test part B pre-to-post exercise (phase B). No significant effects in other planned comparisons were found. Statistically significant increases in daily moderate-to-vigorous PA were also seen during phase B compared to phase A with three of six individuals making a significant behaviour change.ConclusionsThe addition of supervised aerobic exercise to typical rehabilitation strategies in chronic survivors of severe TBI can improve executive set shifting abilities and increase voluntary daily PA levels.Trial registrationRetrospective trial registration on July 11 2024 with trial number: ISRCTN17487462.

Executive Function and Adherence in Children and Adolescents Living with HIV: Evidence from the HIV-associated Neurocognitive Disorders in Zambia (HANDZ) Study.

Executive function (EF) may be impaired in people with human immunodeficiency virus (HIV) infection, and poor EF may affect medication adherence. However, there is little data on EF in children with HIV in sub-Saharan Africa. 208 children/adolescents with perinatally acquired HIV and 208 HIV-exposed uninfected controls were recruited in Zambia for this prospective cohort study. EF was measured using performance-based, self-report, and parental report measures. Adherence over one year of follow-up was assessed through questionnaires and viral load measurement. Children with HIV performed significantly worse on all three measures of EF. Lower parental rating of EF was associated with poorer antiretroviral therapy adherence (OR: 1.5, 95% CI = 1.02 - 2.2, p = 0.04). Children with HIV have EF impairments which may lead to consequences like poor medication adherence and treatment failure. Interventions to improve EF or compensate for impaired EF may be necessary in this population.

Adolescent Executive Function Measurements in Indonesia : Systematic Review and Implications in Educational Settings

This study examines the landscape of executive function (EF) assessments for Indonesian adolescents, focusing on their psychometric properties. The adolescent development phase, marked by cognitive growth, presents opportunities and risks, especially in education settings where well-developed EF is beneficial. This research used a qualitative approach, with a systematic literature review method using the PRISMA (Preferred Reporting Items for Systematic Review and Meta-analysis), analyzing peer-reviewed empirical studies from databases such as SCOPUS and others, focusing on EF measurements for adolescents in Indonesia from 2014 to 2024. Nine studies met the inclusion criteria, highlighting tools like the Behavior Rating Inventory of Executive Function (BRIEF)-Indonesian version, Executive Skills Questionnaire-Revised (ESQ-R), Executive Function Questionnaire (EFQ), and performance-based measures like the Wisconsin Card Sorting Test and Stroop Test. Using content analysis, this study reveals that while the BRIEF is widely used in clinical studies, its applicability in educational settings requires improvement. The findings highlight the importance of adapting EF tools with cultural sensitivity and developing new comprehensive assessments with clear psychometric properties regarding all critical EF components. In recommendations, the study pinpoints a multi-method approach combining inventory-based and performance-based measures to provide a thorough understanding of EF while maintaining practicality for educational settings. The implications for advancing EF research and practice in Indonesia, particularly in education, are discussed, emphasizing the need for reliable, valid, culturally sensitive, and accessible assessment tools.

Executive Functions are Independently Associated with Cognitive Dispersion in HIV Disease.

People with HIV (PWH) can demonstrate elevated cognitive intraindividual variability (IIV-dispersion) that is associated with everyday functioning problems. Higher IIV-dispersion is theorized to reflect lapses in executive aspects of cognitive control, but few studies have directly evaluated this possibility. 72 PWH completed the Cogstate and clinical measures of executive functions, psychomotor speed, and episodic memory. IIV-dispersion was calculated with the coefficient of variation (CoV) from six age-adjusted Cogstate subtest scores. Multiple regression showed that the three domain-level cognitive predictors explained 8% of the variance in Cogstate CoV (p = .03). Within this model, poorer executive functions were moderately associated with higher Cogstate CoV (p = .01), but the psychomotor and episodic memory domains were not (ps > .05). Findings align with cognitive theory in demonstrating IIV-dispersion is uniquely associated with independent measures of executive functions among PWH. Future experimental and mechanistic studies are needed to determine the precise executive aspects of IIV-dispersion.

A - 102 Neuropsychological Insights into Kearns-Sayre Syndrome: a Case Study

Abstract Objective Kearns-Sayre Syndrome (KSS) is a genetic mitochondrial and neuromuscular condition with multisystemic effects, including the eyes, heart, muscles, and cognition. Very little is known regarding the cognitive profile of patients with KSS, and existing studies have presented mixed findings. Results in one study revealed impairments in visuospatial abilities and attention, while another study found impairments in global cognition and word-finding. Interestingly, both studies revealed impairments in executive functions. Method This abstract presents the case of a 46-year-old right-handed, African American female diagnosed with KSS in 2021. Symptoms of KSS first appeared in 2010 with progressive vision loss and bilateral ptosis. Genetic testing revealed MT-T1 mutation consistent with KSS. Electroretinography findings revealed mild cone atrophy and mild-to-moderate concentric visual field defects. Attentional difficulties were noted in 2016 and resulted in a diagnosis of ADHD. Memory problems were first noticed in 2016 and have persisted since then. Magnetic resonance imaging results from May 2023 revealed no structural abnormalities in the brain. Results A comprehensive neuropsychological evaluation completed in March 2024 revealed mostly intact neurocognitive functioning. Notably, performance on memory and visuospatial measures were within normal limits. However, poor performance was revealed on one measure of executive functioning. Conclusions It remains unclear whether the poor performance seen on a measure of executive functioning reflects a true cognitive deficit or just chance variation. Even so, with little information regarding the cognitive profile of KSS, baseline neuropsychological testing should be considered to monitor related cognitive changes over time.