A German Research Program on the Psychosocial Adaptation to Age-Related Vision Impairment

2003 ◽  
Vol 8 (3) ◽  
pp. 168-177 ◽  
Author(s):  
Hans-Werner Wahl ◽  
Oliver Schilling ◽  
Stefanie Becker ◽  
David Burmedi

The present paper argues that psychosocial adaptation in visually impaired older adults is substantially mediated by the use of control strategies. Our first research question against this general conceptual background is whether there are differences between visually impaired older adults and unimpaired older adults in control strategies or variables considered as major adaptational outcome variables in the behavioral and emotional domain. Our second research question addresses the kind of relations between control strategies and outcomes in visually impaired older adults. The findings are based on a sample of N = 90 visually impaired older adults (mean age: 79.5; 64 women, 26 men; all suffering from age-related macular degeneration; visual acuity less than 20/70) as well as a reference group of N = 35 unimpaired older adults. All participants underwent a standardized psychological assessment program based on internationally well-established measures. Findings support the notion that differences between the visually impaired and the unimpaired are most pronounced in behavioral indicators such as activities of daily living and leisure activity level, while control strategies were different in only one instance, pointing to a stronger tendency in visually impaired persons toward compensatory control efforts. Furthermore, selective control, which is investing time and effort to change one's environment, covaries most strongly with behavioral outcomes, while selective control aimed to strengthen the motivational commitment to important life goals covaries most strongly with emotional adaptation. The results generally illustrate the heuristic fruitfulness of psychological control theory in understanding adaptation in visually impaired older adults.

2014 ◽  
Vol 30 (1) ◽  
pp. 12-20 ◽  
Author(s):  
Thomas Korff ◽  
Ann H. Newstead ◽  
Renate van Zandwijk ◽  
Jody L. Jensen

The purpose of this study was to examine the interactions between aging, activity levels and maximal power production during cycling. Participants were divided into younger adults (YA), older active adults (OA,) and older sedentary adults (OS). Absolute maximum power was significantly greater in YA compared with OS and OA; no differences were found between OA and OS. The age-related difference in maximum power was accompanied by greater absolute peak knee extension and knee flexion powers. Relative joint power contributions revealed both age- and activity-related differences. YA produced less relative hip extension power than older adults, regardless of activity level. The OS participants produced less relative knee flexion power than active adults, regardless of age. The results show the age-related decline in muscular power production is joint specific and that activity level can be a modifier of intersegmental coordination, which has implications for designing interventions for the aging population.


1986 ◽  
Vol 80 (7) ◽  
pp. 849-854
Author(s):  
E. Pell ◽  
L. E. Arend ◽  
G. T. Timberlake

Patients with age-related visual loss suffer reduced ability to recognize faces and other scenes in photographs and on television. Recently, progress has been made in image enhancement, using controlled distortion of digitally stored images that increases their usefulness in particular applications. Described are two approaches to image enhancement for the visually impaired. In one approach, the visual losses that characterize individual patients and disease classes are described using detailed measurements of visual degradation transfer functions, which are profiles of loss of image information at various spatial scales. The particular distortion used for image enhancement is then adjusted to the impairment of the individual patient or disease class. A second approach takes advantage of the resemblance between the visual losses of many patients and the degradation of picture information in other applications due to external limitations (e.g., fog and haze) on photography. Several enhancement algorithms have been found useful with such images and may also improve picture recognition by the visually impaired.


Author(s):  
Marissa A. Gogniat ◽  
Catherine M. Mewborn ◽  
Talia L. Robinson ◽  
Kharine R. Jean ◽  
L. Stephen Miller

The population of older adults is increasing, indicating a need to examine factors that may prevent or mitigate age-related cognitive decline. The current study examined whether microstructural white matter characteristics mediated the relation between physical activity and executive function in older adults without any self-reported psychiatric and neurological disorders or cognitive impairment (N = 43, mean age = 73 y). Physical activity was measured by average intensity and number of steps via accelerometry. Diffusion tensor imaging was used to examine microstructural white matter characteristics, and neuropsychological testing was used to examine executive functioning. Parallel mediation models were analyzed using microstructural white matter regions of interest as mediators of the association between physical activity and executive function. Results indicated that average steps was significantly related to executive function (β = 0.0003, t = 2.829, P = .007), while moderate to vigorous physical activity was not (β = 0.0007, t = 1.772, P = .08). White matter metrics did not mediate any associations. This suggests that microstructural white matter characteristics alone may not be the mechanism by which physical activity impacts executive function in aging.


2013 ◽  
Vol 155 (4) ◽  
pp. 688-696.e2 ◽  
Author(s):  
Joshua D. Stein ◽  
Brian W. Hanrahan ◽  
Grant M. Comer ◽  
Frank A. Sloan

2015 ◽  
Vol 7 (3) ◽  
pp. 78-92 ◽  
Author(s):  
Lilit Hakobyan ◽  
Jo Lumsden ◽  
Dympna O'Sullivan

Ongoing advances in mobile technologies have the potential to improve independence and quality of life of older adults by supporting the delivery of personalised and ubiquitous healthcare solutions. The authors are actively engaged in participatory, user-focused research to create a mobile assistive healthcare-related intervention for persons with age-related macular degeneration (AMD): the authors report here on our participatory research in which participatory design (PD) has been positively adopted and adapted for the design of our mobile assistive technology. The authors discuss their work as a case study in order to outline the practicalities and highlight the benefits of participatory research for the design of technology for (and importantly with) older adults. The authors argue it is largely impossible to achieve informed and effective design and development of healthcare-related technologies without employing participatory approaches, and outline recommendations for engaging in participatory design with older adults (with impairments) based on practical experience.


2017 ◽  
Vol 88 (1) ◽  
pp. 60-81
Author(s):  
Mimi Mehlsen ◽  
Mai Bjørnskov Mikkelsen ◽  
Christina Maar Andersen ◽  
Chaitali Ollars

Social and temporal comparisons may help the individual anchor his or her self-image in a social and temporal context. In the Life-Span Theory of Control, comparisons are included in the repertoire of secondary control strategies individuals may apply when primary control strategies are obstructed, for example, by age-related losses or physical decline. The aim of this study was to explore differences in prevalence and effects of social and temporal comparisons in younger and older adults and healthy and diseased individuals ( n = 34). Semistructured interviews were conducted and analyzed using a mixed-methods approach combining qualitative and quantitative data analysis. The results revealed that older adults engaged in more comparisons than younger adults and that the outcomes of comparisons were more positive for older adults, particularly older cancer patients. The results indicate that comparisons may be applied more often by older and diseased individuals in the service of maintaining well-being.


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