环境因素与成人认知关系的研究

本研究旨在考察环境因素与认知发展的关系.采用问卷和心理测量的方法对121名21～80岁成人被试的基本认知能力和环境影响变量进行测量.结果发现,在基本认知能力上存在显著的年龄差异;在环境测量的环境维度因素方面仅出现年龄差异,而环境测量的休闲维度因素方面却存在显著的年龄和性别双重差异;多项环境因素与基本认知能力存在显著相关.结论老年人基本认知能力低于年轻被试,且环境因素对认知发展有一定影响.     

Metabolic Syndrome and Cognitive Function in Healthy Middle-Aged and Older Adults without Diabetes

ABSTRACT

Objective: Few studies have addressed whether the metabolic syndrome (MetS) and its individual components are associated with cognitive function in middle-aged and older populations, as well as whether specific areas of cognition are more affected than others. We examined the cross-sectional association between MetS and six areas of cognitive function in healthy cognitively intact adults without diabetes (n?=?853, mean age 61 years) randomized in two intervention trials. Methods: The National Cholesterol Education Program (NCEP) criteria were used to identify subjects with MetS. Cognitive function was assessed with a neuropsychological battery. A principal components analysis was used to extract five uncorrelated factors interpreted to represent five areas of cognition, and a measure of global cognition was calculated. Results: MetS was weakly but non-significantly associated with lower verbal learning (β?=??.14 [SE(β)?=?0.09], p?=?.15). As the number of MetS criteria increased, scores on global cognition (p trend?=?.01), verbal learning (p trend?=?.06) and semantic memory (p trend?=?.04) decreased. Hypertension was the only MetS risk factor that was independently correlated with lower verbal learning (β?=??.17 [SE(β) =?0.08], p?=?.04), semantic memory (β?=??.26 [SE(β)?=?0.08], p?=?.001) and global cognition (β?=??.15 [SE(β)?=?0.07], p?=?.04). Conclusion: This study adds to the evidence of an association between MetS and lower cognitive function among healthy middle-aged and older adults without CVD and diabetes, as well as confirms the correlation between hypertension and lower cognition.     

Lifespan Differences in a Self Determination Theory Model of Eudaimonia: A Cross-Sectional Survey of Younger,Middle-Aged,and Older Adults

Despite the myriad physical, cognitive, and social losses that are increasingly common as we age, a growing body of evidence suggests that aging is positively associated with mental health and well-being. The majority of this evidence is in the form of mental health, personality, and subjective/hedonic well-being outcomes; far less is known about lifespan differences in eudaimonic well-being. The objective of this study was to examine differences across three age groups in a relatively recent model of eudaimonia informed by self-determination theory that focuses on the process of living well, but also acknowledges outcomes of that process. In comparison to young (n = 66) and middle-aged adults (n = 66), older adults (n = 66) were especially likely to be living eudaimonically (i.e., to have intrinsic aspirations, goal autonomy, mindfulness, and basic psychological need fulfillment). The effect of age on well-being outcomes was mixed; the oldest group reported the highest levels of life satisfaction (hedonic well-being) but the lowest levels of purpose and growth (eudaimonic well-being) in comparison to their younger counterparts. As predicted by the model, basic psychological need fulfillment mediated the relationship between motivational constructs and well-being outcomes. Furthermore, the model applied equally well to younger, middle-aged, and older adults. Our results are consistent with recent theoretical models emphasizing the socioemotional benefits of aging, as well as potential challenges to well-being that exist in later life.     

Distilling Heterogeneity among Children with Disruptive Behavior: Associations between Symptom Patterns and Social Functioning

Children with disruptive behavior (DB) are a heterogeneous group who exhibit several characteristics that may contribute to poor social functioning. The present study identified profiles of reactive aggression, proactive aggression, callous-unemotional (CU) traits, and prosocial behavior in a sample of children with DB. Associations with social functioning (social interaction, social status) were then examined, along with sex differences in profile membership. Parent ratings of 304 clinic-referred children ages 6–12 years with DB were analyzed using latent profile analysis. Five profiles were identified: 1) Moderate prosocial behavior, reactive aggression, and CU, and low proactive aggression (labelled Moderate); 2) Relatively high prosocial behavior and low reactive and proactive aggression and CU traits (Prosocial); 3) High prosocial behavior and reactive aggression, moderate proactive aggression, and low-moderate CU (Reactive-Prosocial); 4) Low prosocial behavior, high CU, high-moderate reactive aggression, and low-moderate proactive aggression (Reactive-CU); and 5) Low prosocial behavior and high reactive and proactive aggression and CU (Aggressive-CU). Profiles characterized by CU traits, reactive aggression, and low prosocial behavior were associated with the most problematic parent-rated social interaction and social status. The results highlight the need to differentiate profiles of psychopathology in children with DB to better address factors most associated with social functioning.     

Cross-Sectional and Longitudinal Associations between Leisure Time Physical Activity,Mental Well-Being and Subjective Health in Middle Adulthood

Previous studies have shown that participation in leisure time physical activity is related to better mental well-being and subjective health. However, the associations between different types of leisure time physical activities and different dimensions of mental well-being have rarely been studied. In addition, longitudinal research, analyzing possible causal relations between these variables, is lacking. To investigate these research questions, data gathered at ages 42 and 50 (present N = 303) for the Finnish Jyväskylä Longitudinal Study of Personality and Social Development were used. Physical activity was assessed as frequency of participation at ages 42 and 50, and at age 50 also as frequency of participation in different types of physical activities. Mental well-being was captured by emotional, psychological and social well-being and subjective health by self-rated health and symptoms. Cross-sectionally, different types of physical activities were related to different dimensions of well-being. Walking had positive associations with psychological and social well-being, rambling in nature with emotional and social well-being, and endurance training with subjective health. Rambling in nature was also positively related to subjective health but only among men. Longitudinally, mental well-being predicted later participation in leisure-time physical activity, whereas no longitudinal associations between subjective health and physical activity were found. The results suggest that leisure time physical activities are related to current mental well-being and subjective health in midlife. Across time, good mental well-being seems to be a resource promoting engagement in physical activity.

     

Behavioral and Psychological Symptoms that Predict Cognitive Decline or Impairment in Cognitively Normal Middle-Aged or Older Adults: a Meta-Analysis

Neuropsychology Review - Epidemiological studies have revealed that behavioral and psychological (or non-cognitive) symptoms are risk factors for cognitive decline in older adults. This study aimed...     

Variations in Expected Affect in Young and Middle-Aged Adults

Expected positive and negative affects were measured in three samples of college students and in three samples of middle-aged adults. For each of the samples, negative affect decreased with age. The pattern of the effect was the same for the three samples and for the Expected Balance Scale (Staats, 1987, 1989) and the PANAS (Watson, Clark, & Tellegen, 1988). The higher negative affect in college students, in comparison to that in their middle-aged friends or parents, is contrary to popular stereotypes. This specific and differential decrease in negative affect is not consistent with theories proposing only a general decrement in emotionality with increasing age. An explanation in terms of stress appraisal, coping, and management is suggested.     

Enhancing Cognitive Functioning in Healthly Older Adults: a Systematic Review of the Clinical Significance of Commercially Available Computerized Cognitive Training in Preventing Cognitive Decline

Successfully assisting older adults to maintain or improve cognitive function, particularly when they are dealing with neurodegenerative disorders such as Alzheimer’s disease (AD), remains a major challenge. Cognitive training may stimulate neuroplasticity thereby increasing cognitive and brain reserve. Commercial brain training programs are computerized, readily-available, easy-to-administer and adaptive but often lack supportive data and their clinical validation literature has not been previously reviewed. Therefore, in this review, we report the characteristics of commercially available brain training programs, critically assess the number and quality of studies evaluating the empirical evidence of these programs for promoting brain health in healthy older adults, and discuss underlying causal mechanisms. We searched PubMed, Google Scholar and each program’s website for relevant studies reporting the effects of computerized cognitive training on cognitively healthy older adults. The evidence for each program was assessed via the number and quality (PEDro score) of studies, including Randomized Control Trials (RCTs). Programs with clinical studies were subsequently classified as possessing Level I, II or III evidence. Out of 18 identified programs, 7 programs were investigated in 26 studies including follow-ups. Two programs were identified as possessing Level I evidence, three programs demonstrated Level II evidence and an additional two programs demonstrated Level III evidence. Overall, studies showed generally high methodological quality (average PEDro score?=?7.05). Although caution must be taken regarding any potential bias due to selective reporting, current evidence supports that at least some commercially available computerized brain training products can assist in promoting healthy brain aging.     

MicroCog: Assessment of Cognitive Functioning

MicroCog: Assessment of Cognitive Functioning version 2.1 (Powell, D. H., Kaplan, E. F., Whitla, D., Catlin, R., and Funkenstein, H. H. (1993). The Psychological corporation, San Antonio, TX.) is one of the first computerized assessment batteries commercially developed to detect early signs of cognitive impairment. This paper reviews its psychometric characteristics and relates them to its clinical utility. It concludes that MicroCog provides an accurate, cost-effective screen for early dementia among elderly subjects living in the community and that it can distinguish dementia from depression. Its ability to detect cognitive decline at other ages or to discriminate dementia from other mental disorders has not been established. MicroCog measures different constructs than do traditional neuropsychological tests, making it difficult to relate test performance to current models of cognitive functioning. The review recommends further development of MicroCog and discusses its implications for the future of computer-based neuropsychological assessment.     

Forgiveness in Younger,Middle-Aged and Older Adults: Age and Gender Matters

The present study investigated age and gender differences in forgiveness of real-life transgressions. Emerging and young, middle-aged, and older adults recalled the most recent and serious interpersonal transgression and then completed the Transgression-Related Interpersonal Motivations Inventory (TRIM-18), which measured their avoidance, revenge, and benevolence motivation toward an offender and indicated to what extent they are generally concerned with the subject of forgiveness. The results revealed a trend among middle-aged adults to express more avoidance than younger adults. Moreover, young men had a greater motivation to seek revenge than middle-aged and older men. No such age differences were apparent for women. Additionally, forgiveness was a more manifest subject in everyday life for middle-aged adults and women. These findings emphasize the importance of age and gender when investigating forgiveness.     

A Cross-Sectional and Longitudinal Investigation of the External Correlates of Sluggish Cognitive Tempo and ADHD-Inattention Symptoms Dimensions

The objective was to determine if the external correlates of sluggish cognitive tempo (SCT) and ADHD-inattention (IN) dimensions were the same in cross-sectional and longitudinal analyses. Teachers and aides rated SCT, ADHD-IN, ADHD-hyperactivity/impulsivity (HI), oppositional defiant disorder (ODD), and depression along with academic impairment in 758 Spanish children (55 % boys) on three occasions (twice at the end of the first grade year [6-week separation] and then again 12-months later at the end of the second grade year). Three of eight SCT symptoms showed substantial loadings on the SCT factor and substantially higher loadings on the SCT factor than the ADHD-IN factor for teachers and aides at each assessment (seems drowsy, thinking is slow, and slow moving). Cross-sectional and longitudinal analyses yielded similar results with SCT and ADHD-IN factors having different and unique external correlates (higher scores on SCT predicted lower scores on ADHD-HI and ODD while higher scores on ADHD-IN predicted higher scores on ADHD-HI and ODD with SCT and ADHD-IN both uniquely predicting academic impairment and depression). Developmental and methodological reasons are discussed for the failure to find an inconsistent alertness SCT factor (daydreams, alertness fluctuates, absent-minded, loses train of though, and confused).     

Bidirectional Relationships Between Posttraumatic Stress Disorder and Social Functioning During Cognitive Processing Therapy

This study investigated temporal relationships between posttraumatic stress symptoms and two indicators of social functioning during cognitive processing therapy. Participants were 176 patients (51.5% female, M age = 39.46 [SD = 11.51], 89.1% White, 42.6% active duty military/veteran) who participated in at least two assessment time points during a trial of cognitive processing therapy. Posttraumatic stress disorder (PTSD) symptoms (PTSD Checklist for DSM-IV) and interpersonal relationship and social role functioning problems (Outcome Questionnaire–45) were assessed prior to each of 12 sessions. Multivariate multilevel lagged analyses indicated that interpersonal relationship problems predicted subsequent PTSD symptoms (b = .22, SE = 0.09, cr = 2.53, p = .01, pr = .46) and vice versa (b = .05, SE = 0.02, cr = 2.11, p = .04, pr = .16); and social role functioning problems predicted subsequent PTSD symptoms (b = .21, SE = 0.10, cr = 2.18, p = .03, pr = .16) and vice versa (b = .06, SE = 0.02, cr = 3.08, p < .001, pr = .23). Military status moderated the cross-lag from social role functioning problems to PTSD symptoms (b = –.35, t = –2.00, p = .045, pr = .16). Results suggest a robust association between PTSD symptoms and social functioning during cognitive processing therapy with a reciprocal relationship between PTSD symptoms and social functioning over time. Additionally, higher social role functioning problems for patients with military status indicate smaller reductions in PTSD symptoms from session to session.     

Childhood Trauma Predicts Positive Expressive Suppression During Social Affiliation in Adults With Anxiety and/or Depression: Implications for Social Functioning

Experiencing childhood trauma (CT) can create barriers for developing relationships and is a risk factor for anxiety and depression. Expressive suppression (ES; i.e., reducing expression associated with experiencing emotions) might explain the link between CT and relationship formation difficulties. We examined the association between (1) CT and ES during a dyadic paradigm intended to facilitate connectedness between unacquainted partners and (2) ES and desire for future interaction (DFI). Individuals with an anxiety or depressive disorder diagnosis (N = 77) interacted with a trained confederate; partners answered a series of increasingly intimate questions about themselves. Participant ES for positive and negative emotions, and participant and confederate DFI were collected during the task. Participants completed global anxiety, depression, and CT measures. CT correlated with positive (r = .35, p = .002), but not negative, ES (r = .13, p = .273). In a multiple linear regression model, CT predicted positive ES beyond symptom variables and gender, β = .318, t = 2.59, p = .012. Positive ES correlated with participant (r = ?.38, p = .001) and confederate DFI (r = ?.40, p<.01); and predicted participant DFI beyond symptom variables and ethnicity, β = ?.358, t = ?3.18, p = .002, and confederate DFI, β = ?.390, t = ?3.51, p = .001, beyond symptom variables. Mediation analyses suggested positive ES accounted for the relationship between greater CT severity and less desire for future interaction from participants, 95%CI [?0.26, ?0.02], and confederates, [?0.38, ?0.01]. Positive ES may be an important factor in the reduced capacity to form new social relationships for individuals with a history of CT, anxiety, and depression.     

Cognitive Functioning in Aging and Dementia: The Kungsholmen Project

The Kungsholmen Project (KP) is a community-based longitudinal study of aging and dementia targeting the 75+ population. In this article, we review empirical studies with a cognitive focus from the KP. The main findings indicate that (a) there is an age-related decline for some cognitive domains (e.g., episodic memory, verbal fluency, visuoconstructive skill, psychomotor speed), but not for others (e.g., primary memory, visuoperceptive skill, motor-hand coordination), (b) multiple individual-difference variables within demographic (e.g., sex, education) life-style (e.g., activity levels), genetic (e.g., apolipoprotein E genotype), and health-related (e.g., vitamin B deficiency, depression, diabetes) domains are related to late-life cognitive functioning, (c) a potential for improving cognitive performance – a reserve capacity – is present also among very old adults, (d) the 2 most common dementia diseases, Alzheimer’s disease (AD) and vascular dementia (VaD), affect cognition in a strikingly similar manner, (e) the role of individual-difference variables in cognitive functioning is markedly reduced in dementia – the pathogenesis itself may overshadow the influence of other variables, and (f) there is a long preclinical period in dementia during which cognitive deficits are detectable. As is true with the other projects represented in this issue, the KP portrays a rather diversified picture of cognitive aging, although systematic patterns are evident with regard to the variability of late-life cognitive functioning.     

Comparison of Cognitive Empathy,Emotional Empathy,and Social Functioning in Different Age Groups

Empathic responses and optimum social functioning are associated with psychological and physical health benefits. The aim of this study was to compare emotional empathy, cognitive empathy, and social functioning among different age groups, including adolescence, young adulthood, middle adulthood, and late adulthood. One hundred and ninety‐six people (92 males, 104 females) with the age range of 14 to 85 assigned to four age groups (adolescents, young adults, middle adults, and older adults) participated in this study. Participants were asked to complete the Empathy Quotient, the Revised Eyes Test, and Social Functioning Scale. The results showed that there were significant differences between older adults and other groups. Emotional empathy increased in older people, but there were deficits in some aspects of cognitive empathy. Also, the findings showed an age‐related decline in social functioning. Due to deficits in cognitive empathy affected by ageing, older adults showed some impairment in their ability to interpret emotional cues. This age‐related decline in cognitive empathy might be a reason for weak social functioning in older adults. Therefore, considering these elements would be helpful to provide healthcare strategies for elderly people.     

中年Ⅱ型糖尿病人记忆损伤特点

本研究主要探讨中年Ⅱ型糖尿病人的记忆损伤特征。研究选取病人和对照各30人,控制年龄(65岁以下。病人组平均53岁,正常组52岁)、教育水平和相关疾病等因素。测试数字符号、数字工作记忆广度、动作记忆和无意义图形再认4项认知任务。结果发现：(1)病人组数字符号测试显著低于正常组;(2)在支持性条件记忆自由回忆中,病人组在有动作演练的高语义关联和无动作演练的低语义关联项目上显著低于对照组。出现分离现象;(3)在线索回忆中,病人组与对照组差异不显著;(4)两组数字工作记忆广度、无意义图形再认的成绩无差异。根据SPT(subject—performed task)研究理论对结果进行了分析,得出结论：中年Ⅱ型糖尿病人记忆的一般性信息加工能力未表现出受损,但特异信息加工受到损伤,并可能预测随年龄及病程进行而表现出一般性信息加工能力受损。     

Sluggish Cognitive Tempo and Neuropsychological Functioning

Research on Child and Adolescent Psychopathology - Sluggish cognitive tempo (SCT) is marked by impairments across social, emotional, and academic functioning, but few studies have examined the...     

Executive Functioning in Older Adults with Mild Cognitive Impairment: MCI Has Effects on Planning,But Not on Inhibition

ABSTRACT

In this study, we compared executive functioning in 32 mild cognitive impairment (MCI) individuals with that of normally aging controls. Cognitive planning tests (Trail Making, Porteus Maze Test, verbal fluency tests) show a group difference favoring the normal controls, but tests for inhibition of prepotent responses (no-go accuracy, two measures of the Stroop effect, and negative priming) failed to uncover a significant group difference. The results indicate that there is no general executive control function impairment in MCI; rather, the deficits found are compatible with the hypothesis that MCI is an accelerated form of normal aging.     

Perceived Changes in Well-Being Following Polysaccharide Intake in Middle-Aged Adults

There is increased scientific interest in the effects of nutrition on cognition and well-being. Plant sourced polysaccharides play multiple roles in the biological processes required for health and well-being. This study explored the subjective experiential reports of well-being following intake of a plant derived polysaccharide supplement. The study used a 12 week double-blind, placebo controlled polysaccharide supplementation design. 109 middle-aged adults (45–60 years) took a standardised teaspoon of a combination of plant polysaccharides or a placebo twice daily for 12 weeks (3.6 g per day), and completed three, open-ended interviews at weeks 4, 8 and 12. Participants who took the polysaccharide supplement reported significantly more perceived beneficial changes in both physical and psychological well-being, specifically at week 12, compared to those who received the placebo. This study provides a starting point for understanding the perceived beneficial impact of polysaccharide interventions on aspects of well-being. Importantly, as a health-related application of polysaccharide science, this research supports the relationship that is emerging between the properties and function of polysaccharides. It is essential that future research assesses the effects of polysaccharide intake on a range of physical and psychological well-being outcomes to further the understanding of structure-function relationships with the aim of enhancing the functional health and well-being of individuals.     

Specifying Links Between Executive Functioning and Theory of Mind during Middle Childhood: Cognitive Flexibility Predicts Social Understanding

The purpose of this study was to specify the development of and links between executive functioning and theory of mind during middle childhood. One hundred four 7- to 12-year-old children completed a battery of age-appropriate tasks measuring working memory, inhibition, flexibility, theory of mind, and vocabulary. As expected, spatial working memory and flexibility increased significantly with age, especially after 7 years. Moreover, flexibility predicted social understanding over and above the effects of age, vocabulary, working memory, and inhibition. Together, these findings highlight improvements in and tight relations between complex aspects of executive functioning and theory of mind during middle childhood and suggest that executive functioning and theory of mind are linked beyond their emergence in early childhood.