Does higher peer socio-economic status predict children's language and executive function skills gains in prekindergarten?

Because most public preschool programs are means tested, children enrolled in these programs accordingly have peers from predominantly low-income families who present lower cognitive skills and more behavioral problems, on average. The present study examined the role of having a higher percentage of peers from higher-SES families on gains in children's receptive vocabulary and executive function skills at the end of prekindergarten. Participants included 417 children attending a prekindergarten program that is not means tested. Findings indicated that having a higher percentage of peers from higher-SES families showed small, positive associations with greater gains in end-of-prekindergarten receptive vocabulary and executive function skills. Results are discussed in the context of current proposals to increase access to publicly funded preschool for higher-income families.     

Siblings’ appearance-related commentary,body dissatisfaction,and risky eating behaviors in young women

IntroductionNegative feedback on appearance is a risk factor for the development of problems related to one's body image.ObjectiveThe present research aimed to analyze the relationship among siblings’ positive and negative appearance-related feedback, dissatisfaction with one's body and risky eating behaviors among young women. The mediational role of body-related social comparison has been investigated.MethodTwo hundred and eight young women living in Italy, with a mean age of 23.15 years, filled in a questionnaire containing the Italian version of the Verbal Commentary on Physical Appearance Scale – Siblings, the Physical Appearance Comparison Scale, the Body Shape Questionnaire-14, and the Eating Disorder Examination-Questionnaire.ResultsDissatisfaction with one's body shows a significant link with risky eating behaviors. Weight and shape-related positive comments made by siblings were significantly and negatively related to social comparison, which in turn was associated with women's dissatisfaction with their body image. Negative comments were directly linked to body dissatisfaction; the mediation role of social comparison with respect to negative comments was not confirmed.ConclusionsThese findings underline the significant role of siblings in the development of females’ body image. Programs aimed to prevent or reduce body dissatisfaction and risky eating behavior could be implemented; these programs should be concerned with not only negative feedback on appearance but also positive comments because of their relevant role.     

How do alternative ways of responding influence 3- and 4-year-olds’ performance on tests of executive function and theory of mind?

A total of 69 preschool children were tested on measures of false belief understanding (the Unexpected Transfer task), inhibitory control (the Grass/Snow task), and strategic reasoning (the Windows task). For each task, children indicated their response either by pointing with their index finger or by using a nonstandard response mode (pointing with a rotating arrow). The means of responding had no effect on children's performance on the Grass/Snow task or on the Unexpected Transfer task, although children performed better on the Unexpected Transfer task when the key object in the story was removed. In contrast, performance on the Windows task was significantly better when children pointed with the rotating arrow. A follow-up experiment with 79 preschoolers found that this improved performance on the Windows task was sustained even after the nonstandard response mode was removed and children again pointed with their finger. These findings together suggest that nonstandard response modes do not help children to inhibit prepotent pointing responses but may help them to formulate response strategies on reasoning tasks by discouraging unreflective impulsive responding.     

Safety of micro-mobility: Riders’ psychological factors and risky behaviors of cargo TTWs in China

Cargo two- or three-wheeled vehicles (TTWs), as a new form of micro-mobility, have become a popular mode of urban cargo transportation in China. Cargo TTW riders’ psychological factors and risky behaviors lead to a number of accidents. A questionnaire is designed by comprehensively considering these factors and behaviors of cargo TTW riders that includes eleven risk factors to quantitatively analyze the risky behaviors based on structural equation modeling (SEM). One thousand three hundred nineteen participants reported using cargo TTWs on a questionnaire distributed across the country. The characteristics of riding behavior data are analyzed to verify the three-layer risk theoretical framework of “Psychological factors (Personality traits/specific factors) - Psychological acceptability of risks (confidence/perception/attitude) - Risky behaviors”. The results show that anger has a strong direct effect on riding violations, while normlessness and altruism have a direct effect on riding errors. Workload has a weak but direct effect on risky behaviors, and riding feedback has a weak and mixed effect. In addition, high-risk groups are identified by analysis of variance (ANOVA) with rider population attributes. These quantitative analyses can help guide safety countermeasures to mitigate accidents involving cargo TTWs.     

Preschoolers’ distress and regulatory behaviors vary as a function of infant–mother attachment security

Children (N = 98) with higher attachment security scores, and lower resistance and avoidance scores during the Strange Situation at 16 months demonstrated somewhat more adaptive observed and mother-reported emotion regulation as preschoolers independent of maternal behavior.     

Family socio-economic status and children’s executive function: The moderating effects of parental subjective socio-economic status and children’s subjective social mobility

Family socio-economic status (SES) is significantly related to disparities in children’s executive function. Children from economically disadvantaged backgrounds perform worse on executive function tasks than their peers from high-SES families. The protective factors in the relationship between SES and executive function have not been sufficiently investigated, especially from the perspective of parents’ and children’s perceptions and expectations regarding SES. Therefore, this study aimed to examine whether parental subjective SES and children’s subjective social mobility separately moderated the relationship between family SES and children’s executive function among 885 participants aged 9–13 years. The results showed that family SES was positively related to the three components of executive function (cognitive flexibility, inhibitory control, and working memory). Moreover, the relationship between SES and cognitive flexibility was weak among the children with a high level of subjective social mobility or those whose parents had high levels of subjective SES. Among children from families with economic hardship, subjective social mobility is a potential protective factor mitigating the negative effects of low family SES on their cognitive flexibility.     

Time’s up! Involvement of metamemory knowledge,executive functions,and time monitoring in children’s prospective memory performance

This study examined time-based prospective memory (PM) in children and explored the possible involvement of metamemory knowledge and executive functions in the use of an appropriate time-monitoring strategy depending on the ongoing task’s difficulty. Specifically, a sample of 72 typically developing children aged 4, 6, and 9 years old were given an original PM paradigm composed of both an ongoing procedural activity and a PM task. Half of the participants (expert group) were trained in the ongoing activity before the prospective test. As expected, results show that time monitoring had a positive effect on children’s PM performance. Furthermore, mediation analyses reveal that strategic time monitoring was predicted by metamemory knowledge in the expert group but only by executive functions in the novice group. Overall, these findings provide interesting avenues to explain how metamemory knowledge, strategy use, and executive functions interact to improve PM performance during childhood.     

A comprehensive model of women’s social cognition and responsiveness to infant crying: Integrating personality,emotion, executive function,and sleep

Disparate lines of research suggest that women’s (a) emotion regulation and personality, (b) executive function and (c) sleep may be important predictors of mothers’ cry responding in part through their effects on social cognition. However, the extent to which each contributes to cry responding independently remains unknown. We examined this question in a convenience sample of 109 nulliparous undergraduate women. Women completed online surveys to assess personality and emotion dysregulation traits, then visited the lab for a testing session during which they reported on sleep the night before and reactions to videotapes of crying infants and completed computerized working memory and inhibitory control tasks under challenging noise conditions (exposure to traffic and cry sounds). Results indicate that women’s positive personality and higher working memory were associated with higher levels of infant-oriented cry processing (i.e., accurate distress detection, empathy and situational/emotional attributions about distress), which in turn was associated with higher intended responsiveness to infant crying. Emotion dysregulation and deficits in inhibitory control were associated with higher levels of self-oriented cry processing (i.e., anger, anxiety, negative and emotion minimizing attributions in response to infant distress), which in turn was associated with lower cry responsiveness. Short-term sleep deprivation was associated with lower intended responsiveness via the above path from poorer inhibitory control to heightened self-oriented cry processing. Findings suggest that sleep, emotional and cognitive factors are associated with cry processing and subsequent responsiveness independent of one another.     

Does adolescent risk taking imply weak executive function? A prospective study of relations between working memory performance,impulsivity, and risk taking in early adolescence

Studies of brain development suggest that the increase in risk taking observed during adolescence may be due to insufficient prefrontal executive function compared to a more rapidly developing subcortical motivation system. We examined executive function as assessed by working memory ability in a community sample of youth (n = 387, ages 10 to 12 at baseline) in three annual assessments to determine its relation to two forms of impulsivity (sensation seeking and acting without thinking) and a wide range of risk and externalizing behavior. Using structural equation modeling, we tested a model in which differential activation of the dorsal and ventral striatum produces imbalance in the function of these brain regions. For youth high in sensation seeking, both regions were predicted to develop with age. However, for youth high in the tendency to act without thinking, the ventral striatum was expected to dominate. The model predicted that working memory ability would exhibit (1) early weakness in youth high in acting without thinking but (2) growing strength in those high in sensation seeking. In addition, it predicted that (3) acting without thinking would be more strongly related to risk and externalizing behavior than sensation seeking. Finally, it predicted that (4) controlling for acting without thinking, sensation seeking would predict later increases in risky and externalizing behavior. All four of these predictions were confirmed. The results indicate that the rise in sensation seeking that occurs during adolescence is not accompanied by a deficit in executive function and therefore requires different intervention strategies from those for youth whose impulsivity is characterized by early signs of acting without thinking.     

The relationship between habitual physical activity status and executive function in individuals with Alzheimer’s disease: a longitudinal,cross-lagged panel analysis

To determine whether habitual physical activity status specifically influences executive function change in Alzheimer’s disease (AD) over 1 year. In this longitudinal cohort study, 45 participants with AD were recruited and provided follow-up data approximately 1 year later. Executive function measures (map search task, digit symbol substitution task, controlled oral word association task, verbal fluency task) and habitual physical activity measures (Physical Activity Scale for the Elderly (PASE) and handgrip strength) were taken at baseline and follow-up. Individual composites were subsequently created. Additional demographic, lifestyle, and neuropsychiatric measures were also taken. In a structural equation model (χ²(26) = 9.84, p = .998, comparative fit index = 1.00, root mean square error of approximation = .00), a significant association was found between habitual physical activity and executive function change (β = .27, p = .04). In a cross-lagged panel analysis, a significant path was found between the PASE score and executive change (β = .22, p = .01). As higher habitual physical activity levels were associated with reduced executive function change, the promotion of low-intensity habitual physical activities in individuals with a diagnosis of AD may be warranted. Further research is needed, however, to explore the impact of habitual physical activity on the trajectory of change across cognitive domains, and how this relates to the progression of the underlying pathology associated with this disease.