Reduced contextual information during future thinking in Alzheimer’s Disease

2021 ◽  
Vol 19 ◽  
Author(s):  
Mohamad El Haj ◽  
Pascal Antoine
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Time Perspective ◽  
Contextual Information ◽  
Well Being ◽  
Limited Time ◽  
General Cognitive Ability ◽  
Future Thinking ◽  
Related Information ◽  
And Control

Objective: This study assessed the ability of patients with Alzheimer’s Disease (AD) to produce “when, where, and who” information during future thinking. Methods: AD patients and control participants were invited to imagine future scenarios. Future thinking was analyzed with respect to the number of “when, where, and who” details. Analysis showed fewer “when, where, and who” details in AD participants than in control participants. Fewer “when” than “where” details and fewer “where” than “who” details were observed in AD and control participants. Results: Production of temporal information in participants with AD was found to be associated with general cognitive functioning, as assessed with the Mini Mental State Exam. Future thinking in AD is mainly associated with reduced contextual information. Conclusion : The diminished ability to construct time-related details during future thinking in AD can be mainly associated with the diminished general cognitive ability in AD, and probably with hippocampal compromise in the disease. We also propose a socio-emotional account according to which, confronted with a limited-time perspective during future thinking, AD patients may tend to maximize their emotional well-being by avoiding time-related information and thinking about friends, family and beloved ones.

scholarly journals Effects of Olfactory Stimulation on Past and Future Thinking in Alzheimer’s Disease

2020 ◽  
Vol 45 (4) ◽  
pp. 313-320 ◽  
Author(s):  
Ophélie Glachet ◽  
Mohamad El Haj
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Empirical Research ◽  
Future Thinking ◽  
Retrieval Time ◽  
Positive Effects ◽  
Future Events ◽  
Odor Analysis ◽  
Odor Exposure ◽  
And Control

Abstract Several studies have demonstrated that Alzheimer’s disease (AD) is associated not only with difficulty in remembering past events but also with a compromised ability to imagine future ones. Recent empirical research has also demonstrated that odor is an effective cue to alleviate difficulty in remembering past events in AD. We investigated whether odor exposure would help AD patients to imagine future events. To this end, we invited AD patients and control participants to evoke past and future events after odor exposure or without odor. Analysis showed that AD patients and control participants produced more specific and more emotional past and future events after odor exposure than without odor. However, odor exposure did not improve the retrieval time for future thinking in AD participants. This study is the first to demonstrate positive effects of odor exposure on the ability of AD patients to project themselves into the future.

Aspects of awareness in patients with Alzheimer's disease

2013 ◽  
Vol 25 (7) ◽  
pp. 1167-1179 ◽  
Author(s):  
Selina Mårdh ◽  
Thomas Karlsson ◽  
Jan Marcusson
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Everyday Life ◽  
Well Being ◽  
Semistructured Interview ◽  
Disease Awareness ◽  
Control Subjects ◽  
Healthy Control ◽  
And Control

ABSTRACTBackground: The purpose of the present study was to gain insight into Alzheimer's disease (AD) patients’ perception of the world through the study of a few aspects of awareness. The aspects in focus of the study were disease awareness, metacognition, managing of everyday life, and as a complement, the agreement (calibration) between patients and their spouses on the studied aspects was considered.Method: A mixed-method evaluation design was used involving 15 AD patients, their spouses, and 15 elderly healthy control subjects. The study comprised both a semistructured interview (AD patients and spouse) and a neuropsychological assessment (AD patients and control subjects).Results: The patients were aware of their disease and able to report on their illness. Despite this awareness, they were unable to realize and manage the practical and cognitive implications of their impairment. The results also indicate that patients and spouses were not well calibrated regarding thoughts about the disease and problems in handling the cognitive deterioration.Conclusions: The findings of our study have relevance to patients’ well being and how they manage everyday life. An open dialogue on these issues between spouses and in the care for AD patients would hopefully enhance quality of life for all parties involved.

SPECIFIC PROPERTIES OF TUBULIN IN THE PREFRONTAL CORTEX IN CONTROL, SCHIZOPHRENIA AND VASCULAR DEMENTIA

2020 ◽  
pp. 65-71
Author(s):  
Burbaeva G.Sh. ◽  
Androsova L.V. ◽  
Vorobyeva E.A. ◽  
Savushkina O.K.
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Prefrontal Cortex ◽  
Vascular Dementia ◽  
Binding Activity ◽  
Nephelometric Method ◽  
Rate Of Polymerization ◽  
Mental Diseases ◽  
And Control ◽  
The Brain

The aim of the study was to evaluate the rate of polymerization of tubulin into microtubules and determine the level of colchicine binding (colchicine-binding activity of tubulin) in the prefrontal cortex in schizophrenia, vascular dementia (VD) and control. Colchicine-binding activity of tubulin was determined by Sherlinе in tubulin-enriched extracts of proteins from the samples. Measurement of light scattering during the polymerization of the tubulin was carried out using the nephelometric method at a wavelength of 450-550 nm. There was a significant decrease in colchicine-binding activity and the rate of tubulin polymerization in the prefrontal cortex in both diseases, and in VD to a greater extent than in schizophrenia. The obtained results suggest that not only in Alzheimer's disease, but also in other mental diseases such as schizophrenia and VD, there is a decrease in the level of tubulin in the prefrontal cortex of the brain, although to a lesser extent than in Alzheimer's disease, and consequently the amount of microtubules.

Lighting and Alzheimer’s disease and related dementias: Spotlight on sleep and depression

2021 ◽  
Vol 53 (5) ◽  
pp. 405-422
Author(s):  
MG Figueiro ◽  
HC Kales
Keyword(s):  
Alzheimer’S Disease ◽  
Older Adults ◽  
Alzheimer's Disease ◽  
Neurodegenerative Disease ◽  
Sleep Disturbances ◽  
Well Being ◽  
Pharmacological Intervention ◽  
Negative Effects ◽  
Health And Well Being ◽  
Positive Results

Alzheimer’s disease and related dementias is the collective term for a progressive neurodegenerative disease for which there is presently no cure. This paper focuses on two symptoms of the disease, sleep disturbances and depression, and discusses how light can be used as a non-pharmacological intervention to mitigate their negative effects. Bright days and dark nights are needed for health and well-being, but the present components of the built environment, especially those places where older adults spend most of their days, are too dimly illuminated during the day and too bright at night. To be effective light needs to be correctly specified, implemented and measured. Yet, without the appropriate specification and measurement of the stimulus, researchers will not be able to successfully demonstrate positive results in the field, nor will lighting designers and specifiers have the confidence to implement lighting solutions for promoting better sleep and mood in this population.

scholarly journals Distinct network topology in Alzheimer’s disease and behavioral variant frontotemporal dementia

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Adeline Su Lyn Ng ◽  
Juan Wang ◽  
Kwun Kei Ng ◽  
Joanna Su Xian Chong ◽  
Xing Qian ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Frontotemporal Dementia ◽  
Network Topology ◽  
Neuropsychiatric Symptoms ◽  
Brain Network ◽  
Salience Network ◽  
Behavioral Variant Frontotemporal Dementia ◽  
Control Networks ◽  
And Control

Abstract Background Alzheimer’s disease (AD) and behavioral variant frontotemporal dementia (bvFTD) cause distinct atrophy and functional disruptions within two major intrinsic brain networks, namely the default network and the salience network, respectively. It remains unclear if inter-network relationships and whole-brain network topology are also altered and underpin cognitive and social–emotional functional deficits. Methods In total, 111 participants (50 AD, 14 bvFTD, and 47 age- and gender-matched healthy controls) underwent resting-state functional magnetic resonance imaging (fMRI) and neuropsychological assessments. Functional connectivity was derived among 144 brain regions of interest. Graph theoretical analysis was applied to characterize network integration, segregation, and module distinctiveness (degree centrality, nodal efficiency, within-module degree, and participation coefficient) in AD, bvFTD, and healthy participants. Group differences in graph theoretical measures and empirically derived network community structures, as well as the associations between these indices and cognitive performance and neuropsychiatric symptoms, were subject to general linear models, with age, gender, education, motion, and scanner type controlled. Results Our results suggested that AD had lower integration in the default and control networks, while bvFTD exhibited disrupted integration in the salience network. Interestingly, AD and bvFTD had the highest and lowest degree of integration in the thalamus, respectively. Such divergence in topological aberration was recapitulated in network segregation and module distinctiveness loss, with AD showing poorer modular structure between the default and control networks, and bvFTD having more fragmented modules in the salience network and subcortical regions. Importantly, aberrations in network topology were related to worse attention deficits and greater severity in neuropsychiatric symptoms across syndromes. Conclusions Our findings underscore the reciprocal relationships between the default, control, and salience networks that may account for the cognitive decline and neuropsychiatric symptoms in dementia.

scholarly journals The Financial Presentation of Alzheimer’s Disease and Related Dementias

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 685-686
Author(s):  
Lauren Nicholas
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Financial Stability ◽  
Well Being ◽  
Chronic Illnesses ◽  
Older Americans ◽  
Economics Of Aging ◽  
Financial Events ◽  
Credit Data ◽  
Medicare Claims Data

Abstract Dementia, a currently incurable degenerative cognitive disease, represents a major threat to financial stability. Early signs of dementia can include difficulties managing money and forgetting to pay bills, raising concerns about the implications of pre-clinical disease for financial well-being. We linked Medicare claims data to 20 years of consumer credit data for more than 80,000 older Americans living in single households to study the financial presentation of Alzheimer’s Disease and Related Dementias. Using non-parametric regression models, we find elevated rates of payment delinquency, subprime credit, and withdrawal from use of credit products up to 6 years before dementia is clinically diagnosed. Similar patterns did not appear with a number of placebo acute and chronic health conditions, suggesting that the adverse financial events are unique to dementia and do not occur with other acute or chronic illnesses. Part of a symposium sponsored by the Economics of Aging Interest Group.

scholarly journals Brief psychotherapy in Alzheimer's disease

2005 ◽  
Vol 187 (2) ◽  
pp. 143-147 ◽  
Author(s):  
Alistair Burns ◽  
Else Guthrie ◽  
Federica Marino-Francis ◽  
Charlotte Busby ◽  
Julie Morris ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cognitive Function ◽  
Controlled Trial ◽  
Well Being ◽  
Good Evidence ◽  
Psychotherapeutic Intervention ◽  
Interpersonal Therapy ◽  
Treatment As Usual ◽  
Affective Symptoms

BackgroundAlthough there is good evidence that interventions for carers of people with Alzheimer's disease can reduce stress, no systematic studies have investigated psychotherapeutic intervention for patients themselves. This may be important in the earlier stages of Alzheimer's disease, where insight is often preserved.AimsThe aim was to assess, in a randomised controlled trial, whether psychotherapeutic intervention could benefit cognitive function, affective symptoms and global well-being.MethodIndividuals were randomised to receive six sessions of psychodynamic interpersonal therapy or treatment as usual; cognitive function, activities of daily living, a global measure of change, and carer stress and coping were assessed prior to and after the intervention.ResultsNo improvement was found on the majority of outcome measures. There was a suggestion that therapy had improved the carers' reactions to some of the symptoms.ConclusionsThere is no evidence to support the widespread introduction of brief psychotherapeutic approaches for those with Alzheimer's disease. However, the technique was acceptable and helpful individually.

Managing Financial Well-Being in the Shadow of Alzheimer’s Disease

2016 ◽  
Vol 26 (1) ◽  
pp. 36-38 ◽  
Author(s):  
Olivia DaDalt ◽  
Joseph F. Coughlin
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Well Being

scholarly journals Spiritual Fitness: A New Dimension in Alzheimer’s Disease Prevention

2021 ◽  
Vol 80 (2) ◽  
pp. 505-519
Author(s):  
Dharma Singh Khalsa ◽  
Andrew B. Newberg
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Disease Prevention ◽  
Chronic Stress ◽  
Disease Risk ◽  
Memory Loss ◽  
Well Being ◽  
Cognitive Disability ◽  
Spiritual Wellbeing ◽  
Spiritual Fitness

Background: Religious and spiritual interventions may have an effect on Alzheimer’s disease prevention. Kirtan Kriya meditation has been shown to mitigate the deleterious effects of chronic stress on cognition, reverse memory loss, and create psychological and spiritual wellbeing, which may reduce multiple drivers of Alzheimer’s disease risk. Objective: To detail a new concept in medicine called Spiritual Fitness, a merging of stress reduction, basic wellbeing, and psycho/spiritual wellbeing to prevent Alzheimer’s disease. Methods: The literature on the topics mentioned above is described, including an in-depth discussion on why and how each are critical to advancing the future of Alzheimer’s disease prevention. The many negative effects of chronic stress, and the benefits of Kirtan Kriya, are reviewed. The four pillars of basic wellbeing, six practical aspects of psychological wellbeing, and the four new non-sectarian features of spiritual fitness are then disclosed. Moreover, instructions on practicing Kirtan Kriya are offered in the Supplementary Material. Conclusion: Religious and spiritual practices, including Kirtan Kriya, are crucial components in the development of enhanced cognition and well-being, which may help prevent and, in some cases, reverse cognitive decline. The key point of this review is that making a commitment to live a brain longevity lifestyle including spiritual fitness is a critically important way for aging Alzheimer’s disease free. We hope that this article will inspire scientists, clinicians, and patients to embrace this new concept of spiritual fitness and make it a part of every multidomain program for the prevention of cognitive disability.

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