Brain structure variation and individual differences in theory of mind among older adults.

The theory of mind (ToM) is not substantially influenced by aging, suggesting the emergence of various compensatory mechanisms. To identify brain regions subserving ToM in older adults, we investigated the associations of individual differences in brain structure with performance on the Reading the Mind in the Eyes Test (RMET), a widely used measure of ToM, using voxel-based morphometry (VBM) and tract-based spatial statistics (TBSS). In contrast to findings obtained from young adults, where multiple cortical regions are implicated in ToM, VBM analysis revealed a significant positive correlation between RMET score and gray matter (GM) volume only in the right middle temporal gyrus, a region implicated in social cognition. Alternatively, TBSS revealed significant positive correlations between RMET score and the fractional anisotropy (FA) values in widespread white matter (WM) tracts, including the bilateral uncinate fasciculus, a region previously linked to RMET performance in young adults. We speculate that individual differences in WM integrity are strong influences on ToM among older adults, whereas the impact of individual differences in GM volumes is relatively limited.

The role of executive functions in older adults' affective theory of mind.

PURPOSE: Executive function (EF) has three subsystems: inhibition, updating, and shifting. Of these three, only inhibition is considered to be involved in affective theory of mind (ToM). This study investigated whether inhibition remains the sole driver for affective ToM in the three EF subsystems in older adults as well as in young people without functional reorganization via aging within EF. MATERIALS AND METHODS: Through hierarchical multiple regression analysis, we examined how these three subsystems affect older participants' performance in the Reading the Mind in the Eyes Test (RMET), a measure of affective ToM, after determining the effect of domain-specific cognitive (nonverbal and verbal) abilities. RESULTS: We found that only inhibition influenced the participants' performance in the RMET, with effects from nonverbal (fluid) ability but not from verbal ability. CONCLUSIONS: Results showed that inhibition continues to be essential for affective ToM after aging decline, and functional reorganization via aging is less likely to occur within EF.

What lifestyles are risk factors for low well-being of healthy elderlies dwelled in a local city in super-aging Japan? -Kizugawa cohort study.

The purpose of this cohort study is to clarify the risk factors of low well-being of elderly people who residing in a local city of a super-aging country, Japan. Subjects are people, who have selected randomly from healthy elderly people resided in Kizugawa City, Kyoto Prefecture, in 2010, followed until 2015. Question survey was conducted in both year, and questionnaire consisted of items such as basic attributes, lifestyles (health practices, consultation behaviors, social activities and so on) and well-being (WHO-5). In analysis we made multi-logistic regression analysis using lifestyle variables as an independent variable and well-being as a dependent variable. The results were as follows. 1. Risk factors were not to exercise, knowledge of appropriate diet, subjective feeling of stress for at least a month, not to participate in voluntary activities, age and bad subjective feeling of health. 2. Risk factors in regard to changes of lifestyles using good-good lifestyles as a reference were sustainment of having no time for hobby or relaxation, sustainment or deterioration of subject feeling of stress for at least a month, sustainment or deterioration of having no time for relaxation and deterioration of having no activities with pleasure or aim. A factor promoting well-being is to have more frequencies for going out home. This study shows that in a longevity society it is important for community-dwelling elderly Japanese to have good health practices, appropriate consultation behaviors and good social activities for the purpose of keeping good well-being, and that these results are contributed to health promotion policy for community-dwelling elderly people.

The relationship between the houseboundedness and frailty of community-dwelling elderly persons.

This study aimed to verify whether the incidence of frailty in elderly individuals is higher among those who are housebound than those who are not. This study found no correlation between elderly people's houseboundedeness and physical, mental, social, and overall frailty. However, the Tilburg Frailty Indicator (TFI) frailty score and grip strength value were higher in non-housebound elderly persons than in housebound elderly ones. This suggests that being housebound may lead to frailty. On the other hand, it is thought that individual interaction with family and friends, and lack of anxiety about falls correlates with the prevention of frailty in housebound elderly persons. The results of the study also suggest that the basic checklist may be effective for ascertaining the actual situation of housebound elderly people who may be manifesting frailty.

[Factors related to eating behaviors in early childhood: Relationships between autistic tendency, sensory characteristics, and childcare environment].

Objective　The objective of this study was to examine the influence of environmental factors on eating behaviors of children.Method　The participants were the caregivers of 1,678 children attending nursery schools or kindergartens in two different cities of a prefecture. We distributed several self-administered questionnaires to the caregivers in conjunction with collaborating organizations. The participants returned the questionnaires either to collection boxes placed at the collaborating organizations facilities or by mailing them. The questionnaires included assessment of the child's basic attributes, caregiver assessments of eating behaviors, the Social Responsiveness Scale (SRS) measure of autistic traits, the Japanese Sensory Inventory-Revised (JSI-R), and the Index of Child Care Environment (ICCE). We conducted a chi-square (χ2) test, Fisher's exact test, and a multiple regression analysis.Results　We received responses from 843 participants (response rate=50.4%), and of those, 583 were considered valid (34.7%). The mean number of problematic eating behaviors for each child as perceived by the caregivers was 2.43±2.26. In general, caregivers thought that about 40% of the children had an unbalanced diet and about 30% had a problem of "not being able to sit still." The multiple regression analysis showed that the number of problematic eating behaviors was significantly and positively affected by the SRS T-score total (ß=0.188, P<0.001), sense of taste (ß=0.319, P<0.001) and auditory sense (ß=0.168, P<0.001) in JSI-R. A positive relationship was found between the environmental factors of human stimulation (ß=0.096, P=0.010) and social support (ß=0.085, P=0.022). A negative relationship was found between sense of smell (ß=-0.108, P=0.013), number of siblings (ß=-0.100, P=0.005), age (ß=-0.077, P=0.029), and sex (ß=-0.091, P=0.010).Conclusion　Our study results showed that having an unbalanced diet and "not being able to sit still" were typical features of eating behaviors. The number of problematic eating behaviors was associated with personal factors such as autistic tendency and sensory characteristics, and also with environmental factors, such as human stimulation and social support. Our findings show the importance of evaluating all relevant factors when dietary guidance is provided in the treatment of problematic eating behaviors.

A cohort study on elderly individuals newly certified as requiring long-term care: comparison of rates of care-needs certifications between basic checklist respondents/specific health examinees and non-respondents/non-examinees of 37,000 elderlies in a city.

Objective: The rates of care-needs certification were mainly compared between two cohorts: 7,820 specific health checkup examinees/basic checklist respondents and 29,234 non-examinees/non-respondents. Subjects and Methods: Among approximately 37,000 elderly citizens of X City, the number of individuals newly certified as requiring long-term care were observed from the date of the first specific health checkup in 2008 to March 31, 2013. The aggregated totals of these individuals and associated factors were evaluated. Results: 1. Support Required 1, Support Required 2, and Long-term Care Required (level 1) certified individuals accounted for approximately 80% of newly certified individuals aged 65-74 years. Newly certified individuals aged 75 years and over had similar results with 37.2% of them being certified Support Required 1, 19.4% certified Support Required 2, and 22.9% certified Long-term Care Required (level 1). 2. The primary factors for care-needs certification in individuals aged 65-74 years were arthritic disorder in 27.6%, falls and bone fractures in 11.3%, and malignant neoplasm and cerebrovascular disease, among others. This was similar for individuals aged 75 years or over. 3. Of the 7,820 specific health checkup examinees/basic checklist respondents, 1,280 were newly certified as requiring long-term care (16.4%) compared to 7,878 (26.9%) of the 29,234 non-examinees/non-respondents. Therefore, the latter cohort had a significantly higher rate of individuals who were newly certified as requiring long-term care. Conclusion: Both specific health checkups and basic checklists are effective health policies to protect frailty in community elderlies.

A retrospective cohort study on the risk assessment of newly certificated long-term care need of elderly individuals in a community: Basic checklist and specific health checkup.

Objective: This study aimed to examine the factors influencing the requirement of a certificate of long-term care using a basic checklist and items listed in the Special Health Checkup. Method: This study included 7,820 individuals living in Uji city, who were selected from among 8,000 elderly individuals who, in 2008, underwent a specific health checkup (hereafter referred to as the 'specific health checkup for the old-old elderly individuals') for those aged 75 years and above. They answered questions from basic checklists at the time, and 180 individuals were excluded as they had already qualified for requiring the certificate of long-term care at the time of the checkup. The follow-up period extended from the day of the specific health checkup for the old-old elderly individuals to March 31, 2013. The data were analyzed using the certificate of needing long-term care as the response variable. The explanatory variables were the basic attributes, items listed in the specific health checkup for the old-old elderly individuals, interview sheets, and basic checklists. Cox proportional hazards regression analysis was conducted. Results: In total, 1,280 elderly individuals qualified for requiring the certificate of needing long-term care. The risk factors for the young-old elderly individuals aged 65 to 74 years were as follows: hepatic dysfunction (hazard ratio {HR}=1.69), the presence of subjective symptoms (HR=1.41), an above-normal abdominal circumference (HR=1.36), old age (HR=1.13), a reduced frequency of going out since the previous year (HR=1.87), the use of support for standing up after being seated on a chair (HR=1.86), no deposit or withdrawals made (HR=1.84), the anxiety of falling down (HR=1.50), an inability to climb stairs without holding a railing or wall (HR=1.49), as well as an increased difficulty in eating tough food items compared with 6 months prior (HR=1.44). The risk factors for the old-old elderly individuals were as follows: a positive reaction on proteinuria (HR=1.27), anemia (HR=1.18), old age (HR=1.10), inability to travel on a bus or train by themselves (HR=1.53), the inability to climb stairs without holding a railing or wall (HR=1.48), weight loss (HR=1.36), a reduced sense of appreciation of the activities they had previously participated in, over a span of 2 weeks (HR=1.30), the use of support for standing up after being seated on a chair (HR=1.23), and the anxiety of falling down (HR=1.20). Conclusion: The items listed in the specific medical checkup as well as the basic checklists were found to be risk factors for both the young-old elderly individuals and the old-old elderly individuals, indicating the need to utilize these lists for the prevention of nursing even in the late stages of life. Moreover, these results suggest the importance of screening elderly individuals suffering from hyperkinesis using the basic checklist and conducting preventive interventions in order to maintain and improve their physical functions.

Relations of mother's sense of coherence and childrearing style with child's social skills in preschoolers.

BACKGROUND: We examined the relationships between mothers' sense of coherence (SOC) and their child's social skills development among preschool children, and how this relationship is mediated by mother's childrearing style. METHODS: Mothers of 1341 Japanese children, aged 4-5 years, completed a self-report questionnaire on their SOC and childrearing style. The children's teachers evaluated their social skills using the social skills scale (SSS), which comprises three factors: cooperation, self-control, and assertion. RESULTS: Path analyses revealed that the mother's childrearing mediated the positive relationship between mother's SOC and the cooperation, self-control, and assertiveness aspects of children's social skills. Additionally, there was a significant direct path from mother's SOC to the self-control component of social skills. CONCLUSIONS: These findings suggest that mother's SOC may directly as well as indirectly influence children's social skills development through the mediating effect of childrearing. The results offer preliminary evidence that focusing on support to improve mothers' SOC may be an efficient and effective strategy for improving children's social skills development.