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191.
The objective of this study was to investigate the importance of impaired physical health and age in normal cognitive aging. In our cross-sectional, clinical and explorative study, medical and neuropsychological data from 118 voluntary healthy controls aged 26-91 years were collected from five recruitment occasions. Health was assessed according to a criterion reflecting clinical and subclinical severity. The examinations included a clinical investigation, brain neuroimaging, and a comprehensive neuropsychological assessment. Regression analyses showed a significant incidence of clinical and subclinical medical disorders that explained 10.8% of the variation in cognitive performance, while age-related impairment explained 5.6%. Findings of the central nervous system were important but various other medical findings explained about half of the health-related variation. Cognitively demanding tasks were more susceptible to impaired physical health while tasks comprising salient motor- and visual spatial elements were more prone to be impaired by age. Our findings suggest (1) that impaired physical health is more important than chronological age in accounting for cognitive impairment across the adult lifespan, (2) that age and health dissociate with regard to cognitive functions affected, and (3) that selection for so-called "super healthy" elderly people might be justified in cognitive research. Because the prevalent diseases in normal aging are potentially preventable, the present findings promise good prospect for prevention of future cognitive disability among elderly people. 相似文献
192.
成年个体的心理理论与执行功能 总被引:2,自引:0,他引:2
为了说明成年个体心理理论与执行功能的发展及两者的关系,在匹配了智商和教育水平条件下,采用心理理论故事理解任务、失言理解任务和威斯康星卡片分类任务分别探察了30名62~77岁的老年人和30名19~25岁青年人的心理理论和执行功能。结果表明,老年人和青年人在2种心理理论任务上的得分与卡片分类任务的得分都不存在显著相关,老年人在失言任务上的得分显著低于青年人,在心理理论故事理解任务上和威斯康星卡片分类任务上,老年人的表现与青年人没有显著差异。结合已有的研究结果提示:心理理论与执行功能的相关模式在成年和学前阶段是不同的。 相似文献
193.
This study examined time-based prospective memory performance in relation to individual and developmental differences in executive functioning. School-age children and young adults completed six experimental tasks that tapped three basic components of executive functioning: inhibition, updating, and mental shifting. Monitoring performance was examined in a time-based prospective memory task in which participants indicated the passing of time every 5min while watching a movie. Separate analyses of the executive functioning data yielded a two-factor solution for both age groups, with the updating and inhibition tasks constituting a common factor and the shifting tasks constituting a separate factor. Both children and adults showed accelerating monitoring functions with low rates of clock checking during the early phase of each 5-min interval. However, compared with adults, children needed more clock checks for obtaining the same level of response accuracy. Executive functioning had selective effects on time-based prospective memory performance. In both children and adults, monitoring performance was related to the inhibition and updating components, but not to the shifting component, of executive functioning. We conclude that difficulties in temporary maintenance and updating of working memory contents may create discontinuities in sense of time, leading to an increased reliance on external cues for time keeping. 相似文献
194.
Dymond S Roche B Forsyth JP Whelan R Rhoden J 《Journal of the experimental analysis of behavior》2007,88(2):249-262
Research on the emergence of human avoidance behavior in the absence of direct contact with an aversive event is somewhat limited. Consistent with work on derived relational responding, the present study sought to investigate the transformation of avoidance response functions in accordance with the relational frames of Same and Opposite. Participants were first exposed to nonarbitrary and arbitrary relational training and testing in order to establish Same and Opposite relations among arbitrary stimuli. The training tasks were; Same-A1-B1, Same-A1-C1, Opposite-A1-B2, Opposite-A1-C2. Next, all possible combinatorially entailed (i.e., B-C and C-B) relations were tested. During the avoidance-conditioning phase, one stimulus (B1) from the relational network signaled a simple avoidance response that cancelled a scheduled presentation of an aversive image and sound. All but one of the participants who met the criteria for conditioned avoidance also demonstrated derived avoidance by emitting the avoidance response in the presence of C1 and the nonavoidance response in the presence of C2. Control participants who were not exposed to relational training and testing did not show derived avoidance. Implications of the findings for understanding clinically significant avoidance behavior are discussed. 相似文献
195.
This article addresses the challenges of defining and accurately identifying elder self‐neglect and explores an interdisciplinary team model, including counselors and mental health professionals, designed to implement prevention and intervention strategies. The challenge of striking a balance between the need to respect the individual elders' autonomy and the need to attend to their health care needs is underscored. 相似文献
196.
Ronald R. Holden Rui C. Campos Ana Simões Sara Costa Ana Sofia Pio Christine E. Lambert 《International journal of psychology》2020,55(6):926-935
Across two countries and two languages, this research examined the multidimensional associations between suicidality (e.g., past ideation/attempts, communication of intent) and empirically important psychological risk factors (e.g., mental pain, perceived burdensomeness, thwarted belongingness). For samples of 228 Canadian and 331 Portuguese university undergraduates, four dimensions emerged in each sample with two of these, intrapersonal and interpersonal, demonstrating strong replicability across countries and languages. It was concluded that suicidality is a phenomenon that demonstrates some multidimensional similarities across cultures. 相似文献
197.
Stuart Leske Ross McD Young Katherine Marie White Anna L Hawkes 《Australian psychologist》2014,49(4):253-270
Informed broadly by the theory of planned behaviour, this study used qualitative methodology to understand Australian adults' sun‐protective decisions. Forty‐two adults participated in focus groups where they discussed behavioural (advantages and disadvantages), normative (important referents), and control (barriers and facilitators) beliefs, as well as potential social influences and images of tanned and non‐tanned people. Responses were analysed using the consensual qualitative research approach to determine the dominant themes. Themes of fashion and comfort were prominent, the important role of friends and family in sun safe decision‐making was highlighted, as was the availability of sun‐protective measures (e.g., in an accessible place or in the environment). Additional themes included the need to model sound sun‐protective behaviours to (current and future) children, the emphasis on personal choice and personal responsibility to be sun safe, and the influence of Australian identity and culture on tanning and socially acceptable forms of sun protection. These beliefs can be used to inform interventions and public health campaigns targeting sun safety among Australians, a population with the highest skin cancer incidence in the world. 相似文献
198.
Mary Jane Haemig 《Dialog》2014,53(4):312-318
Much of theological education and church life has been based on the assumption that people will come to church. Instead, the church needs to look at how it can go out to those who do not come. Careful consideration needs to be given to the traits of leaders needed for this task and the ethos of the education best suited to helping them move out. The past provides some models that may be useful for Lutherans today. 相似文献
199.
Physical activity has been shown to benefit brain and cognition in late adulthood. However, this effect is still unexplored in terms of brain signal complexity, which reflects the level of neural adaptability and efficiency during cognitive processing that cannot be acquired via averaged neuroelectric signals. Here we employed multiscale entropy analysis (MSE) of electroencephalography (EEG), a new approach that conveys important information related to the temporal dynamics of brain signal complexity across multiple time scales, to reveal the association of physical activity with neural adaptability and efficiency in elderly adults. A between-subjects design that included 24 participants (aged 66.63 ± 1.31 years; female = 12) with high physical activity and 24 age- and gender-matched low physical activity participants (aged 67.29 ± 1.20 years) was conducted to examine differences related to physical activity in performance and MSE of EEG signals during a visuo-spatial cognition task. We observed that physically active elderly adults had better accuracy on both visuo-spatial attention and working memory conditions relative to their sedentary counterparts. Additionally, these physically active elderly adults displayed greater MSE values at larger time scales at the Fz electrode in both attention and memory conditions. The results suggest that physical activity may be beneficial for adaptability of brain systems in tasks involving visuo-spatial information. MSE thus might be a promising approach to test the effects of the benefits of exercise on cognition. 相似文献
200.
Beyond Skills and Structure: Justice Dispositions as Antecedents of Young Citizens' Volunteering and Political Participation 下载免费PDF全文
Max Neufeind Patrick Jiranek Theo Wehner 《Journal of community & applied social psychology》2014,24(4):278-295
Community involvement is usually attributed to opportunity structures and individuals' ability to be involved. Building on psychological justice research, this paper proposes that justice dispositions add to explaining why young citizens become active in their communities or not. Furthermore, it is argued that justice dispositions help to understand why most studies find only moderate relationships between youth volunteering and forms of political involvement. In a sample of 321 young Swiss volunteers, this study shows justice centrality and belief in a just world to predict the extent of volunteering and political participation, even after controlling for civic skills and opportunity structures. However, scrutinising the motivations to volunteer, self‐oriented motivations (enhancement, social, career and understanding) more strongly affected the level of volunteering than motivations related to justice dispositions (political responsibility and social responsibility). These findings have implications for the attraction and retention of volunteers as well as for the politics of volunteering and community development in general. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献