Subcomponents Of Executive Function Research Articles

Comprehension of Spatial Demonstratives in Mandarin-speaking Children on the Autism Spectrum: The Roles of Theory of Mind and Executive Function.

The present study aimed to examine whether Mandarin-speaking children on the autism spectrum showed differences in comprehending spatial demonstratives ("this" and "that", and "here" and "there"), as compared to typically developing (TD) children. Another aim of this study was to investigate the roles of theory of mind (ToM) and executive functions (EF) in the comprehension of spatial demonstratives. Twenty-seven autistic children (mean age 6.86) and 27 receptive-vocabulary-matched TD children (mean age 5.82) were recruited. Demonstrative comprehension was assessed based on participants' ability to place objects in certain locations according to experimenters' instructions which involved these demonstratives in three different conditions (same-, opposite-, and spectator-perspective conditions). Four false-belief tasks were administered to measure ToM, and the word-span task and the dimensional change card sort task were used to measure two subcomponents of EF - working memory and mental flexibility - respectively. Children on the autism spectrum were found to score below TD children in the comprehension of spatial demonstratives. In addition, the results showed that ToM and working memory were conducive to the correct interpretation of spatial demonstratives. The two cognitive abilities mutually influenced their respective roles in spatial demonstrative comprehension in the three different conditions. The findings suggest that the comprehension of spatial demonstratives comprehension is an area of need in Mandarin-speaking children on the autism spectrum, and it might be linked to their differences in cognitive abilities.

Longitudinal associations between executive functions and metacognitive monitoring in 5- to 8-year-olds

Pronounced developmental progression during the transition to formal schooling can be found in executive functions (EF) and metacognition (MC). However, it is still unclear whether and how EF and MC influence each other during this transition. Previous research with young children suggests that inhibition may be a prerequisite for monitoring skills. Thus, the present longitudinal study investigated the association between the common subcomponents of EF (inhibition, working memory, and shifting) assessed in kindergarten (T1) and metacognitive monitoring assessed in 2nd grade (T2) in a sample of N = 84 children. In line with our hypothesis, the results revealed a significant link only between the EF subcomponent inhibition and later metacognitive monitoring. More precisely, children with better inhibition skills in kindergarten showed less overconfident monitoring in elementary school. Interestingly, the longitudinal relationship between inhibition and monitoring was not bidirectional. The findings indicate an essential role of early inhibition skills regarding emerging and developing elementary school children’s monitoring skills.

The impact of social media on executive functions: Beneficial or harmful?

<p id="p00005">The effect of social media on executive functions remain controversial. Some studies have shown that the use of social media promotes an individual’s executive functions, and some studies have found that social media use has a negative impact on executive functions. Recent studies have shown that, there may be an inverted U-shaped relationship between social media use and individual's executive function, and that social media use does not necessarily impair or promote executive function, but there is an optimal tipping point between the two. Moderate-intensity use of social media is the best level to promote executive functions. This is related to the moderating role played by the intensity of use. The paper first introduces the behavioral evidence that the effect of social media on executive functions, including three parts: positive effects, negative effects, and inverted U-shaped relationships. Secondly, it analyzes the moderating effect of intensity of use in the inverted U-shaped relationship between social media use and executive functions, and attempt to reveal the debate over the pros and cons of social media use on executive functions. Moderate-intensity use of social media will produce a social media flow experience, allowing individuals to filter out various distracting information when faced with various complex information stimuli in social media, focusing on useful information, and target information is constantly being affected. With storage and update, the individual's executive functions (especially the shifting function) get long-term and repeated exercise under such requirements, and finally improve. In addition, the flow experience generated by the use of social media can be used as an intrinsic motivation to increase the interaction of social networks to make positive changes in interpersonal relationships. This provides individuals with continuous social rewards and emotional support. To a certain extent, it buffers the negative impact of excessive use of social media on cognitive function, and slows down the decline of age-related executive functions. However, high-intensity use of social media causes individuals to worry about their performance in the task, which tends to maintain a wider range of attention and is more susceptible to interference from irrelevant information, while low-intensity use of social media causes individuals to be in a state of lack of proactiveness, the psychological effort process of information processing is reduced or even disappeared, which has a negative impact on executive functions. <p id="p00006">Future research in this area should examine the dose-effect of social media use affecting executive functions. The positive impact of social media use on the executive function may require a relatively long and continuous process of using social media. Whether an optimal social media can be determined the level of media usage maximizes individual's executive functions? In addition, previous research mainly focuses on the impact of social media usage frequency on individual's executive functions in daily life, but lacks a single sub-component of the type of social media usage on the executive function investigation of development and changes. In the future, the relationship between different types of social media usage and sub-components of executive function should be further clarified. Finally, the lifting effect of social media may be more significant in groups whose brain structure is in a period of change. Most previous studies only show that the use of social media can change individual's neural pathways or brain response patterns (and little is known about whether changes in the physiological structure of executive function have an impact on the cognitive level of social media users. Future research should combine behavioral and cognitive neurological methods to examine the brain regions of social media users with different cognitive levels in performing specific tasks. The difference in activation makes the neural mechanism of social media use affecting executive function more precise and comprehensive.

Assessment of the Relationship Between Executive Function and Cardiorespiratory Fitness in Healthy Older Adults.

Associations between cardiorespiratory fitness and brain health in healthy older adults have been reported using a variety of cardiorespiratory fitness estimates (CRFe). Using commonly used methods to determine CRF, we assessed the relationship between CRFe and executive function performance. Healthy older adults (n = 60, mean age 68 years, 77% women), underwent three CRF tests: a Maximal Graded Exercise Test performed on a cycle ergometer, the Rockport Fitness Walking Test, and a Non-Exercise Prediction Equation. Executive function was assessed by a computerized cognitive assessment using an N-Back task (updating cost) and a Stroop task (interference cost, global and local switch cost). Multiple hierarchical regression analyses were conducted to assess the relationship between different CRFe and executive function performance. Regardless of age and education, cardiorespiratory fitness estimated from the Maximal Graded Exercise Test and the Rockport Fitness Walking Test was significantly associated with the global switch cost. All CRFe were associated with the interference cost. No association was observed between CRFe and local switching costs or the updating costs. In the present study, not all subcomponents of executive function were related to CRFe. Interestingly, the executive functions that were associated with CRFe are those that are known to be the most affected by aging.

Bilingual language experience and the neural underpinnings of working memory

A longstanding question in cognitive neuroscience and in the bilingualism literature is how early language experience influences brain development and cognitive outcomes, and whether these effects are global or specific to language-related processes. The current investigation examined the effect of the timing of language learning on the performance and neural correlates of phonological and non-verbal working memory, subcomponents of executive function. Three groups of bilinguals, who varied in terms of the timing of second language learning (i.e., simultaneous bilinguals learned their two languages from birth; early and late bilinguals who learned their second language before or after 5 years of age, respectively), performed phonological and non-verbal working memory tasks in the magnetic resonance imaging scanner. Results showed that there were no group differences in performance on either of the tasks, or in the neural correlates of performance of the non-verbal task. However, critically, we showed that despite similar behavioural performance, the groups differed in the patterns of neural recruitment during performance of the phonological working memory task. The pattern of group differences was non-linear, demonstrating similar neural recruitment for simultaneous and late bilinguals that differed from early bilinguals. Findings from the current study suggest a dynamic mapping between the brain and cognition, contributing to our current understanding of the effect of the timing of language learning on cognitive processes and demonstrating a specific effect on language-related executive function.

Comparing the Executive Function Ability of Autistic and Non-autistic Adolescents with a Manualised Battery of Neuropsychological Tasks.

Performance on a single executive function (EF) task (e.g., a card sorting task) is often taken to represent ability on the underlying subcomponent of EF (e.g., set shifting) without accounting for the non-specific and non-executive skills employed to complete the task. This study used a manualised battery of EF tasks to derive individual task scores and latent EF scores. Seventy-nine adolescents aged between 11 and 19years, including 37 autistic and 42 non-autistic participants, matched on cognitive ability, completed the battery. Autistic adolescents had moderate global EF difficulties and had significantly more difficulties on some individual tasks. However, the samples did not differ on any of the specific individual subcomponents of EF (fluency, cognitive control and working memory).

Functional connectivity evidence for state-independent executive function deficits in patients with major depressive disorder

BackgroundPersistent neurocognitive deficits are often associated with poor outcomes of major depressive disorder (MDD). Executive dysfunction is the most common cognitive deficit in MDD. However, it remains unclear which subcomponent of executive dysfunction is state-independent with distinct neural substrates. MethodsA comprehensive neurocognitive test battery was used to assess four subcomponents of executive function (working memory, inhibition, shifting, and verbal fluency) in 95 MDD patients and 111 matched healthy controls (HCs). After 6 months of paroxetine treatment, 56 patients achieved clinical remission (rMDD) and completed the second-time neurocognitive test. Network-based statistics analysis was utilized to explore the changes in functional connectivity (FC). ResultsCompared with the HCs, all the four subcomponents of MDD patients were significantly impaired. After treatment, there was a significant improvement in working memory, inhibition, and verbal fluency in the rMDD group. And shifting and verbal fluency of the rMDD group remained impaired compared with the HCs. Fifteen functional connections were interrupted in the MDD group, and 11 connections remained in a disrupted state after treatment. Importantly, verbal fluency was negatively correlated with the disrupted FC between the right dorsal prefrontal cortex and the left inferior parietal lobule in patients with MDD and remitted MDD. LimitationsThe correlation analysis of the association between cognitive impairment and connectivity alterations precluded us from making causal inferences. ConclusionsVerbal fluency is the potential state-independent cognitive deficit with distinct neural basis in patients with MDD.

Training executive functions using an adaptive procedure over 21 days (10 training sessions) and an active control group.

The degree to which executive function (EF) abilities (including working memory [WM], inhibitory control [IC], and cognitive flexibility [CF]) can be enhanced through training is an important question; however, research in this area is inconsistent. Previous cognitive training studies largely agree that training leads to improvements in the trained task, but the generalisability of this improvement to other related tasks remains controversial. In this article, we present a pre-registered experiment that used an adaptive training procedure to examine whether EFs can be enhanced through cognitive training, and directly compared the efficacy and generalisability across sub-components of EF using training programmes that target WM, IC, or CF versus an active control group. Participants (n = 160) first completed a battery of tasks that assessed EFs, then were randomly assigned to one of the four training groups, and completed an adaptive procedure over 21 days (10 training sessions) that targeted a specific sub-component of EF (or was comparatively engaging and challenging, but did not train a specific EF). At post-test, participants returned to the lab to repeat the battery of EF tasks. Results revealed robust direct training effects (i.e., on trained task), but limited evidence to support near (i.e., same EF, different task) and far (i.e., different EF and task) transfer effects. Where indirect training benefits emerged, the effects were more readily attributable to the overlapping training/assessment task routines, rather than more general enhancements to the underlying cognitive processes or neural circuits.

Psychosocial perceptions and executive functioning: Hope and school belonging predict students' executive functioning

AbstractIn a sample of 216 high school students, we explored the relationship between hope and school belonging to executive functioning (EF). This examination was carried out to better understand how these, and potentially other psychosocial factors, relate to the neurocognitive decision‐making process of adolescent students. This study had several findings. First, after controlling for demographics and previous achievement, hope and school belonging were found to account for about 26%–39% of EF's variance, a large effect size. Second, after the same controls, hope and school belonging accounted for about 13%–25% of all five subcomponents of EF, an effect size range of medium to large. Finally, in general, the pathways subcomponent of hope was a better predictor of EF than the agency subcomponent. These results provide insight into how EF interacts with school‐based perceptions as well as have implications for psychosocial intervention research within schools.

Self-regulation in Preschool Children: Factor Structure of Different Measures of Effortful Control and Executive Functions

ABSTRACT Temperamental effortful control (EC) and executive functions (EF) are two frameworks for studying self-regulation in children. Despite stemming from different research traditions, they show many conceptual and theoretical similarities and their corresponding tasks are often used interchangeably. However, little is known about how and whether the two constructs can be distinguished empirically. The present study aimed to contribute to the investigation of this issue. A sample of 230 preschool children aged 4–6 years were tested with two common behavioral EC tasks and an EC questionnaire. Furthermore, the assessment included common measures of the three subcomponents of EF, namely inhibition, working memory, and shifting. Data were analyzed using correlational and confirmatory factor analyses. In accordance with our hypotheses, we found significant positive correlations between most EC and EF measures, and a single factor model, in which all EC and EF tasks loaded significantly on the underlying factor, was supported by our results. Moreover, this latent construct generalized across gender and age. These findings show that the variety of common EC and EF tasks used in this study all seem to tap similar aspects of self-regulation and therefore support an integrated model of self-regulation encompassing EC and EF. Our results are further considered to be informative for future research using different EC and EF tasks.

On the (lack of) association between theory of mind and executive functions: a study in a non-clinical adult sample

We investigated in a sample of non-clinical adults the association between Theory of Mind (ToM) and Executive Functions (EFs), that is the set of skills that allow people to control and modulate lower-level cognitive processes in order to produce appropriate behaviour. To this aim, we assessed both affective (i.e., understanding other people’s emotions and feelings) and cognitive (i.e., understanding others’ beliefs and intentions) ToM, as well four subcomponents of EFs, that is Updating, Shifting, Inhibition, and Access. The association between ToM and non-verbal fluid intelligence, verbal reasoning, and cognitive estimation abilities was also investigated. Eighty-one healthy participants were recruited, and a set of psychometrically validated tests was administered. Multiple regression analyses were run to assess significant predictors of ToM performance when potentially confounding predictors (sociodemographic variables) were controlled for. Results showed a lack of association between affective/cognitive ToM and EFs, whereas non-verbal fluid intelligence for cognitive ToM and verbal reasoning for affective ToM were found to be significant predictors of ToM performance. These results represent a contribution toward a deeper understanding of the ToM-EFs relationships and highlight the importance of broadening the analysis of these relationships to the role played by other domain-general functions in both affective and cognitive ToM.

Nature and Correlates of Executive Dysfunction in Schizophrenia: An Exploratory Study.

Background:Executive function (EF) impairment has been demonstrated in patients with schizophrenia. This study attempted to examine the clinical and demographic correlates associated with the different components of EF in these patients using a comprehensive battery of neuropsychological tests.Materials and Methods:Consecutive inpatients with schizophrenia in remission were recruited. The following instruments were administered: (a) Positive and Negative Syndrome Scale (PANSS), (b)World Health Organization Disability Assessment Schedule 2.0, (c) Tower of London, (d) Stroop Test, (e) Controlled Oral Word Association Test, (f) Animal Names Test, and (g) Verbal N-Back Test. Sociodemographic and clinical details were also recorded. Data was analyzed using standard bivariate and multivariate statistics.Results:A total of 50 patients were recruited. The mean age of the population was 30 years (standard deviation [SD]: 7.74). The majority were male, literate, single, from a rural background, from a middle socioeconomic background, and unemployed. The mean dose of antipsychotic medication was 618.57 mg (SD: 282.08) of chlorpromazine equivalents per day. Impairment was found in the different sub-components of EF. On multivariate analysis, factors significantly associated with executive dysfunction were lower education, unemployment, lower income, positive PANSS score, higher antipsychotic dose, and history of treatment with electroconvulsive therapy.Conclusion:EFs encompass a wide range of cognitive processes that influence an individual’s ability to adapt and function in the society. These are often impaired in patients with schizophrenia. Clinicians need to be aware of these deficits and factors associated with them, to plan appropriate and effective remedial measures.

Metacognition and behavioral regulation predict distinct aspects of social functioning in autism spectrum disorder

ABSTRACT Executive function (EF) deficits are common in autism spectrum disorder (ASD), and previous studies suggest that EF may influence or predict social functioning. Thus, EF is a potential treatment target in this population. However, the nature of how specific metacognition and behavioral regulation components of EF may differentially impact social function remains unclear. The goal of the current study was to examine the relationships between sub-components of EF (e.g., working memory, shifting, inhibition, etc.) and social functioning as measured by parent ratings on the Behavior Rating Inventory of Executive Functioning (BRIEF) and the Social Responsiveness Scale (SRS), while controlling for the influence of age, sex, and IQ. A second goal was to examine whether BRIEF scores were predictive of clinician-rated measures of ASD symptoms. Behavioral data were acquired from the Autism Brain Imaging Data Exchange-II database and included 106 children with ASD (ages 5–13). Based on analysis of parent ratings, self-monitoring skills predicted social awareness; shifting ability predicted social cognition; working memory and monitoring skills predicted social communication; initiation predicted social motivation; and shifting ability predicted restrictive and repetitive behaviors among children with ASD. Parent ratings on the BRIEF did not predict clinician-rated measures of ASD symptoms; this requires further study. Overall, the current findings indicate that metacognition and behavioral regulation both contribute to social functioning in ASD, although they each have distinct patterns of influence on different aspects of social functioning. These findings have promising implications for tailoring social interventions for ASD that target specific EF skills.

Age Differences in the Subcomponents of Executive Functioning.

Across the life span, deficits in executive functioning (EF) are associated with poor behavioral control and failure to achieve goals. Though EF is often discussed as one broad construct, a prominent model of EF suggests that it is composed of three subdomains: inhibition, set shifting, and updating. These subdomains are seen in both younger (YA) and older adults (OA), with performance deficits across subdomains in OA. Therefore, our goal was to investigate whether subdomains of EF might be differentially affected by age, and how these differences may relate to broader global age differences in EF. To assess these age differences, we conducted a meta-analysis at multiple levels, including task level, subdomain level, and of global EF. Based on previous work, we hypothesized that there would be overall differences in EF in OA. Using 1,268 effect sizes from 401 articles, we found overall differences in EF with age. Results suggested that differences in performance are not uniform, such that variability in age effects emerged at the task level, and updating was not as affected by age as other subdomains. These findings advance our understanding of age differences in EF, and stand to inform early detection of EF decline.

Executive functions moderated the influence of physical cues on children’s empathy for pain: an eye tracking study

ABSTRACT Empathy for pain in daily life is more complex than in lab settings and involved higher cognitive abilities. In order to investigate the role of executive function in preschoolers’ empathy for pain, we investigated the role of three subcomponents of executive function (inhibitory control, working memory and cognitive flexibility) in children’s empathy for pain, and recorded the attentional process with eye tracking (N = 46). Results showed that inhibitory control (IC) and working memory (WM) were associated with preschool children’s empathy for pain and moderated the effect of physical cue on empathy for pain. With higher IC and WM, there was a higher difference in empathy caused by cue type. Eye-tracking results showed that attention partially mediated the roles of inhibitory control and working memory. These results suggested that both executive function and attention were important for children to make accurate empathic responses for pain.

A meta-analysis of the relationship between empathy and executive function.

The current meta-analysis was designed to determine the relationship between executive function (EF) and empathy, as well as to identify any moderators. A search of Chinese and English databases yielded 18 studies and 67 effect sizes involving a total of 6006 participants. Results with the random effects model showed that EF was significantly positively correlated with empathy (r = .14, p < .001). Subgroup analysis showed that EF was more strongly related to cognitive empathy (r = .20, p < .001) than to affective empathy (r = .09, p = .03). Looking at the two dimensions of empathy, we further found that cognitive empathy is closely related to subcomponents of EF, including inhibitory control (r = .23, p < .001), working memory (r = .20, p < .001), and cognitive flexibility (r = .15, p = .036), while only affective empathy was closely related to inhibitory control (r = .12, p < .001). Results suggested that future research should consider that the relationship between empathy and EF varies depending on the division of specific subcomponents. This finding may help in explaining possible mechanisms of how EF affects empathy.

Altered association between executive functions and reading and math fluency tasks in children with reading difficulties compared with typical readers.

Fluent reading in children relies on executive functions (EF). Recent research suggests that EF skills also affect arithmetic abilities. Children with reading difficulties (RD) experience deficits in EF. It is still unknown to what extent these EF deficits are the basis for both reading and arithmetic skills in children with RD compared with typical readers. To define the role of EF in reading and arithmetic in children with RD and typical readers, EF measures and reading and arithmetic fluency and non-fluency measures were assessed in 8 to 12-year-old children with RD and age-matched typical readers. Comparison and correlation analyses were performed within and between the two groups. Children with RD scored lower on reading and arithmetic fluency and non-fluency tasks compared with typical readers. For both groups, fluency measures were lower than non-fluency measures. Strong correlations were found within the entire study population between fluency measures and EF, as well as between non-fluency measures and EF compared with mixed correlations observed for the groups separately. Fluency was related to subcomponents of EF expressed in both reading and arithmetic domains for the two groups. The role of each domain and comparison with non-fluency results for each group are discussed.

Acute and Long-term Effects of Resistance Training on Executive Function

The current body of evidence suggests that both acute and chronic exercise have a positive impact on executive function (i.e., top-down mental processes for achieving internal goals). Previous reviews have mainly focused on the effects of aerobic exercise, whereas possible benefits following resistance training have received far less attention. Therefore, the present review examines both the acute and long-term effects of resistance training on the three core facets of executive function (inhibitory control, working memory, and cognitive flexibility). Comparing the effects of resistance training on different subcomponents, benefits were most pronounced for inhibitory control in both the acute and long-term exercise paradigms. Although some studies also reported positive effects of resistance training on working memory and cognitive flexibility, the interpretation of these improvements is limited due to heterogeneous findings and a small number of studies. Thus, it is premature to conclude that resistance training selectively benefits the inhibitory aspect of executive function. Further, it remains unclear how frequency, duration, and intensity of resistance training influence such cognitive enhancements. Consequently, future studies are encouraged to address possible influences of exercise characteristics on the subcomponents of executive function, and to further examine the effects of resistance training across all age groups.

Impaired theory of mind in Chinese children and adolescents with idiopathic generalized epilepsy: Association with behavioral manifestations of executive dysfunction

BackgroundEpilepsy is a common neurological disorder with a core feature of cognitive impairments. Previous studies showed that patients with focal epilepsy have deficits in both theory of mind (ToM) and executive function (EF). However, there are few studies of ToM in patients with idiopathic generalized epilepsy (IGE), especially in populations with pediatric epilepsy. The aim of this study was to examine the characteristics of ToM and EF, including some of their subcomponents, and explore the relationship between them in Chinese children with IGE. Materials and methodsWe recruited 54 children and adolescents with IGE as the experimental subjects and 37 typically developing children and adolescents as control subjects. Both groups completed ToM tests, namely, second-order false belief tasks (FBTs) and faux pas tasks (FPTs). Their caregivers completed the Behavior Rating Inventory of Executive Function (BRIEF) at the same time. ResultsChildren and adolescents with IGE displayed worse performance on some of the FBTs and FPTs than healthy controls (p<0.01). They also exhibited widespread EF deficits, comprising eight subcomponents (p<0.05). Pearson's correlation analysis revealed that several subcomponents of EF (inhibition, emotional control, initiation, working memory, and monitoring) were unequally correlated with FBT and FPT. Regression analysis showed that ToM had associations with inhibition, working memory, and duration of seizures. Analysis of variance (ANOVA) indicated that children with newly diagnosed epilepsy displayed significant deficits in FBT, FPT, and distinct subscales of EF. ConclusionsOur results revealed significant impairments in ToM and EF in children and adolescents with IGE compared with healthy controls. We found significant correlations between ToM and two subcomponents of EF (inhibition and working memory) in children with IGE. Additionally, the duration of seizures affected ToM in patients but was a less powerful predictor than the two subcomponents of EF. Even for children with new-onset seizures and without medication, the deficits in ToM and some distinct subscales of EF were apparent. This result has clinical implications for both nonpharmaceutical therapies and cognitive rehabilitation.

4.18 Specificity of the Associations Between Psychopathology and Executive Function Impairment in Youth

Deficits in executive function (EF) are a hallmark of many clinical disorders. However, it is unclear whether the type and degree of EF dysfunction is common across neuropsychiatric disorders, indicative of a general psychopathology marker, or whether disorder-specific EF impairments exist. To address this gap, the current study assessed multiple subcomponents of EF and clinical domains in a large sample group of youth (N = 8,856).