Dementia beyond 2025: Knowledge and uncertainties

Controversial Past, Splendid Present, Unpredictable Future: A Brief Review of Alzheimer Disease History

Background: The concept of Alzheimer disease (AD)-since its histological discovery by Alzheimer to the present day-has undergone substantial modifications. Methods: We conducted a classical narrative review of this field with a bibliography selection (giving preference to Medline best match). Results: The following subjects are reviewed and discussed: Alzheimer's discovery, Kraepelin's creation of a new disease that was a rare condition until the 1970's, the growing interest and investment in AD as a major killer in a society with a large elderly population in the second half of the 20th century, the consolidation of the AD clinicopathological model, and the modern AD nosology based on the dominant amyloid hypothesis among many others. In the 21st century, the development of AD biomarkers has supported a novel biological definition of AD, although the proposed therapies have failed to cure this disease. The incidence of dementia/AD has shown a decrease in affluent countries (possibly due to control of risk factors), and mixed dementia has been established as the most frequent etiology in the oldest old. Conclusions: The current concept of AD lacks unanimity. Many hypotheses attempt to explain its complex physiopathology entwined with aging, and the dominant amyloid cascade has yielded poor therapeutic results. The reduction in the incidence of dementia/AD appears promising but it should be confirmed in the future. A reevaluation of the AD concept is also necessary.

Effects of cognitive stimulation therapy on patients with dementia: An umbrella review of systematic reviews and meta-analyses

BACKGROUND

Dementia is characterized by significant cognitive decline that results in disturbance of daily activities. Increasing number of meta-analyses has examined the efficacy of cognitive stimulation therapy (CST) for dementia. However, there is a lack of comprehensive reports that specifically discuss the strength of evidence to support CST for dementia.

PURPOSE

This study aimed to summarize evidence regarding the efficacy of CST on people with dementia.

DESIGN

Umbrella review of systematic reviews and meta-analyses.

METHODS

We searched Cochrane Library, PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang Data, China Biology Medicine disc (CBMdisc), and VIP databases from inception to December 31, 2022. The methodological quality of the identified studies was assessed using A Measurement Tool to Assess Systematic Reviews 2 (AMSTAR 2). Studies scoring 9-12 (moderate quality) points or higher were further analyzed using Grades of Recommendations Assessment, Development and Evaluation (GRADE) principles.

RESULTS

A total of 14 systematic reviews and meta-analyses were included in the umbrella review. The methodological quality of most included reviews was rated as moderate according to AMSTAR 2 rating system. In these studies, we summarized the characteristics of the content, providers, frequency, period and setting of CST, and examined eight health outcomes related to CST, including cognition, depression, behavioral symptoms, quality of life (QoL), activities of daily living (ADL), language and communication, anxiety, and memory. Eleven studies with low to high rating of overall confidence (OC) consistently reported that CST could significantly improve cognition of people with dementia, including high-quality supporting evidence. However, the effect of CST on other health outcomes for people with dementia (e.g., depression, behavioral symptoms, QoL, ADL) is inconsistent, with low- to moderate-quality evidence ratings. Compared with the above results, few studies have reported the effects of CST on communication, anxiety, and memory for people with dementia.

CONCLUSIONS

In the future, the design and reporting of systematic reviews and meta-analyses should incorporate high-quality research metrics in accordance with AMSTAR 2 criteria. The current review supports CST as an effective treatment for improving cognitive function in patients with dementia. Multi-component interventions are more effective than single-component interventions and need to be delivered regularly.

REGISTRATION

The protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO) database (CRD42022364259).

Application of machine learning techniques for dementia severity prediction from psychometric tests in the elderly population

Previous research has shown the benefits of early detection and treatment of dementia. This detection is usually performed manually by one or more clinicians based on reports and psychometric testing. Machine learning algorithms provide an alternative method of prediction that may contribute, with an automated process and insights, to the diagnosis and classification of the severity level of dementia. The aim of this study is to explore the use of neuropsychological data from a reduced version of the Addenbrooke's Cognitive Examination III (ACE-III) to predict absence or different levels of dementia severity using the Global Deterioration Scale (GDS) scores through the implementation of the kNN machine learning algorithm. A sample of 1164 elderly people over sixty years old were evaluated using a reduced version of the ACE-III and the GDS. The kNN classifier provided good accuracies using 15 items from the ACE-III and adequately differentiating people with absence and mild impairment, from those with more severe levels of impairment according to the GDS rating. Our results suggest that the kNN algorithm may be used to automate aspects of clinical cognitive impairment classification in the elderly population.

High-fat diet exacerbates cognitive and metabolic abnormalities in neuronal BACE1 knock-in mice - partial prevention by Fenretinide

Objective: The β-site APP-cleaving enzyme 1 (BACE1) is a rate-limiting step in β-amyloid (Aβ) production in Alzheimer's disease (AD) brains, but recent evidence suggests that BACE1 is also involved in metabolic regulation. Here, we aimed to assess the effects of highfat diet (HFD) on metabolic and cognitive phenotypes in the diabetic BACE1 knock-in mice (PLB4) and WT controls; we additionally examined whether these phenotypes can be normalized with a synthetic retinoid (Fenretinide, Fen) targeting weight loss.Methods: Five-month old male WT and PLB4 mice were fed either (1) control chow diet, (2) 45%-saturated fat diet (HFD), (3) HFD with 0.04% Fen (HFD + Fen) or (4) control chow diet with 0.04% Fen (Fen) for 10 weeks. We assessed basic metabolic parameters, circadian rhythmicity, spatial habituation (Phenotyper) and working memory (Y-maze). Hypothalami, forebrain and liver tissues were assessed using Western blots, qPCR and ELISAs.Results: HFD feeding drastically worsened metabolism and induced early mortality (-40%) in otherwise viable PLB4 mice. This was ameliorated by Fen, despite no effects on glucose intolerance. In HFD-fed WT mice, Fen reduced weight gain, glucose intolerance and hepatic steatosis. The physiological changes induced in WT and PLB4 mice by HFD (+/-Fen) were accompanied by enhanced cerebral astrogliosis, elevated PTP1B, phopsho-eIF2α and altered hypothalamic transcription of Bace1, Pomc and Mc4r. Behaviourally, HFD feeding exacerbated spatial memory deficits in PLB4 mice, which was prevented by Fen and linked with increased full-length APP, normalized brain Aβ*56 oligomerization and astrogliosis.Conclusions: HFD induces early mortality and worsened cognition in the Alzheimer's-like BACE1 mice- partial prevention was achieved with Fenretinide, without improvements in glucose homeostasis.

The (in)accuracies of floating leaves: How people with varying experiences of dementia differently position the same visual metaphor

Metaphors help shape the social world. Yet, with research and language guidelines focusing primarily on the stigmatising potential of verbal representations, much greater attention is needed regarding visual metaphors' role in perpetuating and challenging particular views of dementia. Through semi-structured interviews and focus groups, this paper explores how people with dementia and their carers and/or loved ones evaluate one prevalent visual metaphor for dementia that maps autumnal trees losing leaves onto the brain/head. Analysis considers three main responses to the metaphor, that: (1) it does not depict dementia; (2) it meaningfully explains a biomedical account of progressive brain deterioration; and (3) it reinforces inaccurate and/or 'hopeless' discourses of what having dementia involves, with individuals suggesting creative alterations to better fit their counter discourses. These findings foreground the importance of attending to subjectivity, nuance and multi-layered discourses within visual metaphors, which can indirectly convey stigmatising representations.

Sociodemographic factors associated with public knowledge of dementia in a Cuban population

International organizations estimate that a new dementia is diagnosed every 3 s.

Gamification in E-Learning and Sustainability: A Theoretical Framework

Progress in communication technologies and social isolation caused by the COVID-19 pandemic have supported the acceptance of e-learning. In the e-learning context, gamification has been identified as one of the most promising trends. Many researchers believe in the game elements’ capacity to drive learning, skills acquisition, and changes for more sustainable behavior. However, the literature on the subject is dispersed, addressing behavioral attitudes and elements in an isolated and fragmented way. This study aims to present a framework relating game elements to behavioral attitudes to promote sustainability and ensure quality of learning. The methodology is based on a systematic literature review using the PRISMA protocol, covering the content analysis of 130 articles indexed in the Web of Science database. For the framework construction, the following were identified: behavioral attitudes stimulated by gamification; main game elements and how they relate to each other. Based on this, a framework called 7GOALS (Gamification-Oriented Active Learning Steps) associated with the PDCA (Plan, Do, Check, Act) was established. The proposed structure is multidisciplinary and can be used in any knowledge field that uses gamification. With this, themes such as sustainability can be widely disseminated and leverage changes towards more sustainable behaviors that adhere to the real world.

Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach

The Addenbrooke's Cognitive Examination III is one of the most widely used tests to assess cognitive impairment. Although previous studies have shown adequate levels of diagnostic utility to detect severe impairment, it has not shown sensitivity to detect mild decline. The aim of this study was to evaluate the psychometric properties of Addenbrooke's Cognitive Examination III in a large sample of elderly people through Item Response Theory, due to the lack of studies using this approach. A cross-sectional study was conducted with 1164 people from the age of 60 upwards, of which 63 had a prior diagnosis of Alzheimer dementia. The results showed that, globally, the Addenbrooke's Cognitive Examination III possesses adequate psychometrics properties. Furthermore, the information function test shows that the subscales have different sensitivity to different levels of impairment. These results can contribute to determining patterns of cognitive deterioration for the adequate detection of different levels of dementia. An optimized version is suggested which may be an economic alternative in the applied field.

Balance Impairments as Differential Markers of Dementia Disease Subtype

Background

Accurately differentiating dementia subtypes, such as Alzheimer’s disease (AD) and Lewy body disease [including dementia with Lewy bodies (DLB) and Parkinson’s disease dementia (PDD)] is important to ensure appropriate management and treatment of the disease. Similarities in clinical presentation create difficulties for differential diagnosis. Simple supportive markers, such as balance assessments, may be useful to the diagnostic toolkit. This study aimed to identify differences in balance impairments between different dementia disease subtypes and normal aging using a single triaxial accelerometer.

Methods

Ninety-seven participants were recruited, forming four groups: cognitive impairment due to Alzheimer’s disease (AD group; n = 31), dementia with Lewy bodies (DLB group; n = 26), Parkinson’s disease dementia (PDD group; n = 13), and normal aging controls (n = 27). Participants were asked to stand still for 2 minutes in a standardized position with their eyes open while wearing a single triaxial accelerometer on their lower back. Seven balance characteristics were derived, including jerk (combined, mediolateral, and anterior–posterior), root mean square (RMS; combined, mediolateral, and anterior–posterior), and ellipsis. Mann–Whitney U tests identified the balance differences between groups. Receiver operating characteristics and area under the curve (AUC) determined the overall accuracy of the selected balance characteristics.

Results

The PDD group demonstrated higher RMS [combined (p = 0.001), mediolateral (p = 0.005), and anterior–posterior (p = 0.001)] and ellipsis scores (p < 0.002) than the AD group (AUC = 0.71–0.82). The PDD group also demonstrated significantly impaired balance across all characteristics (p ≤ 0.001) compared to the controls (AUC = 0.79–0.83). Balance differences were not significant between PDD and DLB (AUC = 0.69–0.74), DLB and AD (AUC = 0.50–0.65), DLB and controls (AUC = 0.62–0.68), or AD and controls (AUC = 0.55–0.67) following Bonferroni correction.

Discussion

Although feasible and quick to conduct, key findings suggest that an accelerometer-based balance during quiet standing does not differentiate dementia disease subtypes accurately. Assessments that challenge balance more, such as gait or standing with eyes closed, may prove more effective to support differential diagnosis.

Instrumental Activities of Daily Living Scales to Detect Cognitive Impairment and Dementia in Low- and Middle-Income Countries: A Systematic Review

BACKGROUND

The largest proportion of people with dementia worldwide live in low- and middle- income countries (LMICs), with dementia prevalence continuing to rise. Assessment and diagnosis of dementia involves identifying the impact of cognitive decline on function, usually measured by instrumental activities of daily living (IADLs).

OBJECTIVE

This review aimed to identify IADL measures which are specifically developed, validated, or adapted for use in LMICs to guide selection of such tools.

METHODS

A systematic search was conducted (fourteen databases) up to April 2020. Only studies reporting on development, validation, or adaptation of IADL measures for dementia or cognitive impairment among older adults (aged over 50) in LMICs were included. The QUADAS 2 was used to assess quality of diagnostic accuracy studies.

RESULTS

22 papers met inclusion criteria; identifying 19 discrete IADL tools across 11 LMICs. These were either translated from IADL measures used in high-income countries (n = 6), translated and adapted for cultural differences (n = 6), or newly developed for target LMIC populations (n = 7). Seven measures were investigated in multiple studies; overall quality of diagnostic accuracy was moderate to good.

CONCLUSION

Reliability, validity, and accuracy of IADL measures for supporting dementia diagnosis within LMICs was reported. Key components to consider when selecting an IADL tool for such settings were highlighted, including choosing culturally appropriate, time-efficient tools that account for gender- and literacy-bias, and can be conducted by any volunteer with appropriate training. There is a need for greater technical and external validation of IADL tools across different regions, countries, populations, and cultures.

The Alzheimer case: perceptions, knowledge and the acquisition of information about Alzheimer's disease by middle-aged and older adults in Flanders

Alzheimer's disease (AD) is a major health concern as the world population ages. Yet, few studies have examined what the public over the age of 50 knows about AD. This qualitative study, based on 40 in-depth interviews, examines the knowledge of AD by Flemish people between 50 and 80 years old and their cross-source engagement with information sources. Building on AD media representations and theories on media complementarity and health information behaviour, we find that respondents mostly encounter AD information non-purposively via traditional mass media and interpersonal communication, while the internet is occasionally used to purposefully seek information. Novels, personal experiences/social proximity, public figures and particularly film stand out as channels and sources of AD information, suggesting that fictional narratives, personal experiences and being able to identify with others leave lasting impressions and help to communicate and disperse AD information. However, common misconceptions and gaps in knowledge persist, including AD being considered part of the normal ageing process and old age as well as confusing AD with Parkinson's disease. The biomedical perspective and the tragedy discourse prevail among the majority of respondents, who describe AD in terms of decline, loss and death and as ‘the beginning of the end’. Only a few, typically female respondents, appear aware of the role of individual health behaviour and lifestyle choices to prevent dementia or delay its onset. The misconceptions of AD and gaps in knowledge, as well as the fact that a third of all cases of dementia might be delayed or prevented by managing lifestyle and other risk factors, stress the importance of public educational programmes and the need to emphasise and raise awareness of preventative behaviour. Overall, the findings from this study can be of help to public health communicators and dementia-awareness campaigns, as well as AD training programmes for health-care professionals and family care-givers.

Attitudes of at-risk older adults about prevention of cardiovascular disease and dementia using eHealth: a qualitative study in a European context

OBJECTIVES

Prevention of cardiovascular disease (CVD) and dementia is a key health priority among older adults. Understanding individuals' attitudes to, the prevention of these conditions, particularly when delivered through novel eHealth tools, could help in designing effective prevention programmes. The aim of the study was to explore the attitudes of older adults at increased risk of CVD and dementia regarding engagement in eHealth self-management prevention programmes, and to describe the facilitators and barriers.

DESIGN

A qualitative research approach was used. Data were collected through eight focus groups in Finland, France and the Netherlands. Data were analysed following the principles of grounded theory.

SETTING AND PARTICIPANTS

Forty-four community-dwellers aged 65+ at risk of CVD were recruited from a previous trial cohort in Finland, and through general practices in France and the Netherlands.

RESULTS

The study identified three categories: access to reliable information, trust in the healthcare providers and burden and stigma of dementia. A core category was also identified: the interactive process of the three categories influencing engagement in self-management prevention programme. The categories were interconnected through an interactive process and influenced by the local healthcare culture and context which shaped them differently, becoming either facilitators or barriers to engage in eHealth self-management prevention programmes.

CONCLUSIONS

The study emphasises the importance of considering the interactions between the identified categories in this study, grounded in the local healthcare culture and context in further developments of eHealth self-management interventions that aim to prevent CVD and dementia.

TRIAL REGISTRATION NUMBER

ISRCTN48151589.

Histological and Behavioral Phenotypes of a Novel Mutated APP Knock-In Mouse

Gene mutations within amyloid precursor protein (APP or AβPP) and/or presenilin 1 (PS1) genes are determinants of familial Alzheimer's disease (fAD) and remain fundamental for experimental models. Here, we generated a neuronal knock-in mouse (PLB2APP) with mutated human APPSwe/Lon and investigated histopathology and behavioral phenotypes. Additionally, PLB2APP mice were cross-bred with a presenilin (PS1A246E) line to assess the impact of this gene combination. Immunohistochemistry determined amyloid-β (Aβ) pathology, astrogliosis (via GFAP labelling), and neuronal densities in hippocampal and cortical brain regions. One-year old PLB2APP mice showed higher levels of intracellular Aβ in CA1, dentate gyrus, and cortical regions compared to PLBWT controls. Co-expression of PS1 reduced hippocampal but elevated cortical Aβ build-up. Amyloid plaques were sparse in aged PLB2APP mice, and co-expression of PS1 promoted plaque formation. Heightened GFAP expression followed the region-specific pattern of Aβ in PLB2APP and PLB2APP/PS1 mice. Behaviorally, habituation to a novel environment was delayed in 6-month-old PLB2APP mice, and overall home-cage activity was reduced in both lines at 6 and 12 months, particularly during the dark phase. Spatial learning in the water maze was impaired in PLB2APP mice independent of PS1 expression and associated with reduced spatial navigation strategies. Memory retrieval was compromised in PLB2APP mice only. Our data demonstrate that low expression of APP is sufficient to drive histopathological and cognitive changes in mice without overexpression or excessive plaque deposition. AD-like phenotypes were altered by co-expression of PS1, including a shift from hippocampal to cortical Aβ pathology, alongside reduced deficits in spatial learning.

Exploring public perceptions and understanding of dementia: Analysing narratives from the Mass Observation Project

Over 850,000 people living in the United Kingdom have been diagnosed with dementia, yet knowledge about this condition amongst the general population remains relatively poor. Many studies have evaluated the level of public knowledge and understanding about dementia from a research and professional service perspective; however, none have considered this condition from the perspective of the wider public. In this preliminary overview, we analyse and describe high-level narratives collected from 143 respondents to a Dementia Directive commissioned to the Mass Observation Project. These narratives present a perspective on the public knowledge and understanding about dementia not previously considered, where respondents have written openly about their own experiences, and reflected on their perception of the wider public's knowledge and understanding about dementia. This unique perspective importantly enhances our knowledge about the public's understanding and awareness of dementia, and informs the main areas of public concern found in the analysis: care responsibilities, impact on relationships, and fears about developing dementia.

Moving beyond 'safety' versus 'autonomy': a qualitative exploration of the ethics of using monitoring technologies in long-term dementia care

Background

Use of monitoring technologies (e.g. wearable or environmental sensors) in long-term care generates extensive ethical debate, primarily about their potential to enhance resident safety weighed against concerns about their impacts upon resident autonomy. There are a number of other ethical aspects which are far less debated, including questions about the monitoring of the workforce, and equality of access to technologies. In this paper, we explore the extent to which remote monitoring of the workforce, and equality of access to technologies, were seen to influence the implementation of monitoring technologies within long-term care facilities.

Methods

An embedded multiple-case study design was used with three dementia-specialist care facilities in England that had experience using a range of monitoring technologies. Data were collected through 175 h’ observation of daily practice, semi-structured interviews with 36 staff, residents and relatives, and examination of organisational documentation and technology manufacturer literature. Data were analysed using Framework Analysis.

Results

Use of technologies for workforce monitoring was understood in relation to the ethical obligations to fulfil a duty of care to residents. There was little recognition of any negative implications for the workforce, but staff were susceptible to rumours that technologies were being used for performance management even when this was not the case. There were questions about how far data collected by monitoring technologies could constitute ‘evidence’ of appropriate care delivery. Equality and access to technologies involved a need to compromise between generic designs that were not universally suitable, but were more affordable than bespoke designs. Contracts with suppliers imposed limitations on product choice.

Conclusions

There is an urgent need for greater consideration of the ethical and legal implications that remote technological monitoring might have upon workforce morale, recruitment and retention. Ensuring variety of technological design to facilitate equitable access for residents is financially extremely challenging. It is possible that considerations of equitable access are not deemed a priority due to the current generation of residents’ low levels of technological familiarity and expectation. It might be overstated and unrealistic to view expensive technologies as the pinnacle of innovative practice in care homes.

Electronic supplementary material

The online version of this article (10.1186/s12877-019-1155-6) contains supplementary material, which is available to authorized users.

Workshops on diagnosis and management of dementia for general practitioners: a pre-post intervention study of dementia knowledge

OBJECTIVES

To assess improvements in dementia knowledge among general practitioner (GP) registrars and supervisors following their participation in dementia workshops.

DESIGN

Pre-post intervention study.

SETTING

General practice education in Australia.

PARTICIPANTS

296 GP registrars and 91 GP supervisors.

INTERVENTIONS

Registrars participated in a 3-hour face-to-face workshop on diagnosing and managing dementia. Supervisors participated in a 2-hour modified version of the workshop designed to support them in teaching registrars.

MAIN OUTCOME MEASURES

The Dementia Knowledge Assessment Scale (DKAS) was used to assess overall dementia knowledge as well as knowledge on four subscales (causes and characteristics; communication and behaviour; care considerations; risks and health promotion). Changes in mean scores and the proportion of participants obtaining a threshold score (90th percentile score preworkshop) were used as measures of improvement.

RESULTS

Few registrars and supervisors identified previous experience of formal dementia education. At baseline, mean dementia knowledge scores were 36 for registrars and 37 for supervisors of a total score of 50. Both groups had significantly improved overall dementia knowledge following the workshop with a mean score of 43. Improvements in knowledge were observed for all four DKAS subscales. Between preworkshop and postworkshop periods, there was an increase in the proportion of registrars and supervisors obtaining the threshold score for total DKAS as well as the four subscales. A significantly higher proportion of registrars compared with supervisors obtained the threshold score postworkshop in the areas of causes and characteristics and risks and health promotion.

CONCLUSIONS

Prior to the workshop, no differences in overall dementia knowledge were observed between registrars and supervisors. While knowledge improved in all areas for both groups postworkshop, findings from this study suggest the need to include foundational content such as the causes and characteristics of dementia in educational workshops for both trainee and experienced GPs.

Exploring the ‘active mechanisms’ for engaging rural-dwelling older men with dementia in a community technological initiative

Research has suggested ecopsychosocial initiatives can promote a sense of wellbeing and inclusion in people with dementia. However, few studies have elucidated the ‘active mechanisms’ whereby such initiatives can achieve these outcomes, so hindering their generalisability. This is particularly pertinent when seeking to support community-dwelling older men with dementia who are reluctant to engage with traditional health and social care initiatives. This paper reports on a study that drew from the principles of Participatory Action Research to explore the ‘active mechanisms’ of a technological initiative for older men (65+ years) with dementia in rural England. An individually tailored, male-only initiative, using off-the-shelf computer game technology (e.g. iPad, Nintendo Wii and Microsoft Kinect) was delivered over a nine-week period. Multiple qualitative methods were employed, including: focus groups, open interviews and extensive reflective field notes, to gather data from the perspective of 22 men, 15 care partners and five community volunteers. The data were analysed thematically and interpreted using a masculinity lens. Three mechanisms contributed to the initiative's success: the use of the technology, the male-only environment and the empowering approach adopted. The paper argues that initiatives aimed at community-dwelling older men with dementia would be advised to consider these gendered experiences and ensure participants can maximise their masculine capital when participating in them, by providing enabling activities, non-threatening environments and empowering approaches of delivery.

Usability and acceptability of technology for community-dwelling older adults with mild cognitive impairment and dementia: a systematic literature review

Background

The objective of this review was to obtain an overview of the technologies that have been explored with older adults with mild cognitive impairment and dementia (MCI/D), current knowledge on the usability and acceptability of such technologies, and how people with MCI/D and their family carers (FCs) were involved in these studies.

Materials and methods

Primary studies published between 2007 and 2017 that explored the use of technologies for community-dwelling people with MCI/D were identified through five databases: MEDLINE, PsycINFO, Embase, AMED, and CINAHL. Twenty-nine out of 359 papers met the criteria for eligibility. We used the Mixed Methods Appraisal Tool for quality assessment.

Results

A wide range of technologies was presented in the 29 studies, sorted into four domains: 1) safe walking indoors and outdoors; 2) safe living; 3) independent living; and 4) entertainment and social communication. The current state of knowledge regarding usability and acceptability reveals that even if researchers are aware of these concepts and intend to measure usability and acceptability, they seem difficult to assess. Terms such as “user friendliness” and “acceptance” were used frequently. User participation in the 29 studies was high. Persons with MCI/D, FCs, and staff/other older adults were involved in focus groups, workshops, and interviews as part of the preimplementation process.

Conclusion

Research regarding technologies to support people with MCI/D seems optimistic, and a wide range of technologies has been evaluated in homes with people with MCI/D and their FCs. A major finding was the importance of including people with MCI/D and their FCs in research, in order to learn about required design features to enhance usability and acceptability. Surprisingly, very few studies reported on the consequences of technology use with regard to quality of life, occupational performance, or human dignity.

The experience of lived space in persons with dementia: a systematic meta-synthesis

BACKGROUND

Identifying how persons with dementia experience lived space is important for enabling supportive living environments and creating communities that compensate for the fading capabilities of these persons. Several single studies have explored this topic; however, few studies have attempted to explicitly review and synthesize this research literature. The aim of this systematic meta-synthesis was therefore to interpret and synthesize knowledge regarding persons with dementia's experience of space.

METHODS

A systematic, computerized search of AgeLine, CINAHL Complete, Embase, Medline and PsycINFO was conducted using a search strategy that combined MeSH terms and text words for different types of dementia with different descriptions of experience. Studies with 1) a sample of persons with dementia, 2) qualitative interviews as a research method and 3) a description of experiences of lived space were included. The search resulted in 1386 articles, of which 136 were identified as eligible and were read and assessed using the CASP criteria. The analysis was inspired by qualitative content analyses.

RESULTS

This interpretative qualitative meta-synthesis included 45 articles encompassing interviews with 672 persons with dementia. The analysis showed that living in one's own home and living in long-term care established different settings and posed diverse challenges for the experience of lived space in persons with dementia. The material revealed four main categories that described the experience of lived space: (1) belonging; (2) meaningfulness; (3) safety and security; and (4) autonomy. It showed how persons with dementia experienced a reduction in their lived space due to the progression of dementia. A comprehensive understanding of the categories led to the latent theme: "Living with dementia is like living in a space where the walls keep closing in".

CONCLUSION

This meta-synthesis reveals a process whereby lived space gradually becomes smaller for persons with dementia. This underscores the importance of being aware of the experiences of persons with dementia and the spatial dimensions of their life-world. To sustain person-centred care and support the preservation of continuity and identity, one must acknowledge not only the physical and social environment but also space as an existential experience for persons with dementia.

Exploring assistive technology as a potential beneficial intervention tool for people with Alzheimer's disease - a systematic review

Nowadays, due to the increase in the number of aging population groups, there is also a growth of aging diseases such as Alzheimer's disease (AD), which is a progressive brain disorder that eventually results in death. At the moment, it cannot be cured, only its symptoms can be alleviated both by using pharmacological and non-pharmacological approaches in order to maintain and in some cases even enhance quality of life of people living with AD, as well as their caregivers. One of such non-pharmacological approaches is the use of assistive technology (AT), which can contribute to the improvement and maintenance of the quality of life of both patients and their caregivers. The purpose of this study was to explore what types of AT are mostly used by patients with AD and how these devices can help their caregivers. This was done by conducting a literature review of available sources found in the Web of Science, Scopus, and PubMed. The findings, apart from one study, reveal that AT may have the potential to maintain the quality of life of people with AD, especially in the early stages of the disease, as well as to mitigate the mental and physical burden of their caregivers. The most common types of AT for patients with AD are devices of daily living and safety devices. The less frequent are still telecare devices and devices to support engagement, social participation, and leisure. Future research should focus on the effectiveness of AT on the improvement of patients' symptoms, as well as on the development and use of AT for social interactions, which can be used in patients with AD of different degree of severity and have a positive impact on their behavioral and psychological symptoms.

La influencia del apoyo social en cuidadores de personas con deterioro cognitivo o demencia

El apoyo social se define como un conjunto de transacciones que implican ayuda, afecto y afirmación. El objetivo de la investigación ha sido desarrollar un modelo que explique como la frecuencia de cuidados influye en la satisfacción de los cuidadores de personas con deterioro cognitivo o demencia a través de variables como el apoyo social o la sobrecarga. Los resultados obtenidos confirman que la frecuencia de cuidados predice la satisfacción. Asimismo, se demuestra que están mediados por el apoyo social y la sobrecarga, conllevando el primero  a una mayor satisfacción y la sobrecarga a una disminución de la misma. 

Alzheimer's disease and the law: positive and negative consequences of structural stigma and labeling in the legal system

OBJECTIVE

To explore the meaning and consequences of labeling on structural stigma in the context of Alzheimer's disease (AD) in the legal system.

METHOD

This qualitative study was made up of three focus groups including social workers and lawyers (n = 26). Participants were asked to report their experience in circumstances in which persons with AD and their family members engage with the legal system. Thematic analysis using the constant comparative method was used.

RESULTS

The discussions in the focus groups raised two overall themes. (1) The significance of the medical diagnostic labeling of AD in the legal system and (2) the consequences of labeling of AD within the legal system. This last theme included four sub-themes: (a) negative consequences of labeling; (b) reasons associated with negative consequences of labeling; (c) positive consequences of labeling; and (d) reasons associated with positive consequences of labeling.

CONCLUSION

Findings of the study provide a first foundation for future research on the meaning and consequences of labeling in legal cases involving persons with AD. They suggest that increasing judges' knowledge about AD and reforming the existing 'status-based' legal capacity legislation might benefit by limiting the legal weight given today to the medical diagnosis.

Notes from the hospital bedside: reflections on researcher roles and responsibilities at the end of life in dementia

Purpose

The purpose of this paper is to explore some of the ethical and practical dilemmas faced by an experienced researcher in undertaking research with a person with dementia (whom we have called Amy). Amy died shortly after a period of observation had ended and the family subsequently consented to the data being shared.

Design/methodology/approach

This individual case study presentation was nested within a larger study conducted in England and Scotland between 2013 and 2014. The overall aim of the main study was to investigate how healthcare professionals and informal carers recognised, assessed and managed pain in patients living with dementia in a range of acute settings.

Findings

The presented case study of Amy raises three critical reflection points: (i) Researcher providing care, i.e. the place and positioning of compassion in research observation; (ii) What do the stories mean? i.e. the reframing of Amy's words, gestures and behaviours as (end of) life review, potentially highlights unresolved personal conflicts and reflections on loss; and (iii) Communication is embodied, i.e. the need to move beyond the recording of words to represent lived experience and into more multi-sensory methods of data capture.

Originality/value

Researcher guidance and training about end of life observations in dementia is presently absent in the literature and this case study stimulates debate in a much overlooked area, including the role of ethics committees.

[Organization of out-patient psychiatric care in dementia and cognitive impairment in aged. Part II: Clinical and economic efficacy of memory clinics and Alzheimer's disease centers]

The part II of the review is focused on a history of developing of memory clinics and Alzheimer's disease centers as well as on the indices of their activity in various countries and in Russia. Approaches to the evaluation of clinical and economic efficacy of new technologies of organization of care and a role of the national programs in solving of the problem of old age dementias were considered.

Designing Serious Computer Games for People With Moderate and Advanced Dementia: Interdisciplinary Theory-Driven Pilot Study

Background

The field of serious games for people with dementia (PwD) is mostly driven by game-design principals typically applied to games created by and for younger individuals. Little has been done developing serious games to help PwD maintain cognition and to support functionality.

Objectives

We aimed to create a theory-based serious game for PwD, with input from a multi-disciplinary team familiar with aging, dementia, and gaming theory, as well as direct input from end users (the iterative process). Targeting enhanced self-efficacy in daily activities, the goal was to generate a game that is acceptable, accessible and engaging for PwD.

Methods

The theory-driven game development was based on the following learning theories: learning in context, errorless learning, building on capacities, and acknowledging biological changes—all with the aim to boost self-efficacy. The iterative participatory process was used for game screen development with input of 34 PwD and 14 healthy community dwelling older adults, aged over 65 years. Development of game screens was informed by the bio-psychological aging related disabilities (ie, motor, visual, and perception) as well as remaining neuropsychological capacities (ie, implicit memory) of PwD. At the conclusion of the iterative development process, a prototype game with 39 screens was used for a pilot study with 24 PwD and 14 healthy community dwelling older adults. The game was played twice weekly for 10 weeks.

Results

Quantitative analysis showed that the average speed of successful screen completion was significantly longer for PwD compared with healthy older adults. Both PwD and controls showed an equivalent linear increase in the speed for task completion with practice by the third session (P<.02). Most important, the rate of improved processing speed with practice was not statistically different between PwD and controls. This may imply that some form of learning occurred for PwD at a nonsignificantly different rate than for controls. Qualitative results indicate that PwD found the game engaging and fun. Healthy older adults found the game too easy. Increase in self-reported self-efficacy was documented with PwD only.

Conclusions

Our study demonstrated that PwD’s speed improved with practice at the same rate as healthy older adults. This implies that when tasks are designed to match PwD’s abilities, learning ensues. In addition, this pilot study of a serious game, designed for PwD, was accessible, acceptable, and enjoyable for end users. Games designed based on learning theories and input of end users and a multi-disciplinary team familiar with dementia and aging may have the potential of maintaining capacity and improving functionality of PwD. A larger longer study is needed to confirm our findings and evaluate the use of these games in assessing cognitive status and functionality.

Alzheimer's disease prevention: A way forward

This review proposes a more optimistic view of Alzheimer's disease (AD), in contrast to that contributed by the ageing of the population and the failure of potentially curative therapies (vaccines and others). Treatment failure is likely due to the fact that AD gestates in the brain for decades but manifests in old age. This review updates the concept of AD and presents the results of recent studies that show that primary prevention can reduce the incidence and delay the onset of the disease. Half of all cases of AD are potentially preventable through education, the control of cardiovascular risk factors, the promotion of healthy lifestyles and specific drug treatments. These approaches could substantially reduce the future incidence rate of this disease.

Finding a place to connect: A qualitative study exploring the influences of the physical and social environments on spouses' opportunities to maintain relationships when visiting a partner with dementia living in long-term care

The purpose of this qualitative study was to explore how physical and social environments influence spouses' opportunities to maintain relationships when visiting a partner with dementia living in long-term care. Interviews with 15 spouses whose partners lived in long-term care facilities for persons with dementia, observations of physical environments and participant observations were conducted. The results showed how finding a place for spouses to connect in the long-term care facility was important in maintaining relationships. Access to individual rooms was an important feature that enabled connections throughout the phases of dementia, whereas common areas appeared more difficult to use because small spaces limited private interactions. Health personnel were important in sustaining spouses' abilities to maintain their relationships in long-term care facilities for persons with dementia.

Exploring psychosocial interventions for people with dementia that enhance personhood and relate to legacy- an integrative review

BACKGROUND

Epidemiological predictions suggest that dementia will continue to rise and that this will have social and economic ramifications. Effective interventions, beyond pharmacological management are needed. Psychosocial interventions have largely been investigated in relation to carers of people with dementia, or with regards to their ability to manage dementia symptoms, improve cognition, and reduce challenging behaviour. However, since dementia is a life-limiting illness and people with dementia are at risk of having their personhood compromised, psychosocial interventions should seek to enhance personhood, and offer the potential for the person to leave a legacy.

METHODS

An integrative review was carried out to identify, assess, appraise and synthesise studies featuring interventions, which relate to both personhood and legacy. Search strategies were developed in key databases: MEDLINE; PsycINFO; Embase; Joanna Briggs Institute; CINAHL; Cochrane Database of Systematic Reviews; ASSIA. Grey literature was also identified through free-text searches.

RESULTS

Thirty six articles were included in the final review, these were tabulated and were assessed based on how the intervention related to personhood and legacy. Classification resulted in three themes being identified: Offering aspects of legacy; Acknowledging the person behind the patient; Facilitating meaningful engagement. Generally, personhood aspects of interventions were well reported, but further research is required to explore legacy potential of psychosocial interventions for people with dementia.

CONCLUSION

The integrative review provides an overview and exploration of an under-researched area, and provides directions for future research, which will help expand the evidence base and ultimately help improve patient care for people with dementia and their families.