Psychological Symptoms Of Dementia Research Articles

Assessment of Behavioral and Psychological Symptoms in Dementia, Associated Risk Factors and Clinical Correlates

Background: The presence of behavioral and psychological symptoms in dementia (BPSD) are associated with hospitalization, rapid cognitive decline, poor quality of life and higher caregiver burden. Thus, we aim to characterize the BPSD symptoms, its relationship to dementia-related risk factors and their predictive value, if any.Methodology: In 48 adults (mean age: 70.27 ± 10.08) with major neurocognitive disorder (MNCD) as per diagnostic and statistical manual of mental disorders, 5th edition and with Hindi mental status examination scores less than or equal to 23 were recruited. Patients were assessed for cognition by hindi Montreal cognitive assessment (HMOCA) and the clinical dementia rating scale (CDR). BPSD and caregiver burden were assessed using the neuropsychiatric inventory (NPI) and burden assessment schedule (BAS). The correlation of NPI scores with socio-demographic variables and clinical variables was assessed. A forward stepwise linear regression (using p-value < .05) was used to identify possible predictors of the NPI scores.Results: The majority of participants were predominantly males, 25 (52.1%), from urban regions, belonged to middle-class socio-economic status and had severe grading (HMOCA (< 10) of MNCD (25 (52.2%) but had moderate caregiver burden (25 (52.2%)). The most common MNCD type was due to Alzheimer’s disease (22 (45.8%)). Cortical atrophy and ischemic infarcts were the most common neuroimaging abnormalities reported (7 (14.9%)). Mean HMOCA, clinical dementia rating scale (CDR), NPI and BAS scores were 9.13 ± 6.96, 1.50 ± 1.05, 41.79 ± 27.06 and 68.65 ± 22.84, respectively. The most common BPSD domains were sleep disturbance (60.4%) and hallucinations (56.25%). Among the established risk factors, hypertension was present in the highest proportion (21 (43.8%)). As per the stepwise logistic regression model CDR scores, smoking status and HTN were predicted risk factors (R²: 0.452; p = 0.045).Conclusion: Irritability/agitation is most prevalent BPSD. The severity of MNCD, smoking and hypertension may help in the prediction of BPSD and their role may have to be explored in further studies.

PROTOCOL: Factors influencing the implementation of non-pharmacological interventions for behaviours and psychological symptoms of dementia in residential aged care homes: Asystematic review and qualitative evidence synthesis.

This is a protocol for a Cochrane Review. The objectives are as follows.This paper aims to describe a protocol for a systematic review that will synthesise the qualitative evidence regarding factors influencing the implementation of non-pharmacological interventions (NPIs) for behavioural and psychological symptoms of dementia (BPSD) management in residential aged care homes (RACHs). The planned systematic review aims to answer the research question: 'What are the factors influencing the implementation of NPIs in the management of BPSD at RACHs?'. Additionally, the planned systematic review also aims to generate recommendations to guide stakeholders (e.g., clinicians and aged care staff) and policymakers in the implementation of NPIs for managing BPSD at RACHs.

Effects of tooth loss on behavioral and psychological symptoms of dementia in app knock-in mice

ObjectivesMany patients with Alzheimer's disease (AD) experience behavioral and psychological symptoms of dementia (BPSD), which significantly affect their quality of life. It is known that 5-Hydroxytryptamine (5-HT) plays a crucial role in the development of BPSD. While the relationship between tooth loss and AD symptoms has been acknowledged, the aspect of aggression has not been focused on until now. Despite the established importance of 5-HT in BPSD, how tooth loss is related to the exacerbation of AD symptoms, especially in terms of aggression, remains largely unexplored. Although nutritional status is known to influence the progression of dementia, the specific effect of tooth loss on peripheral symptoms, notably aggression, is not well understood. MethodsIn our study, we conducted maxillary molar extractions in aged C57BL/6J and AppNL-G-F mice and observed their condition over a 3-month period. During this time, we documented significant behavioral and genetic differences between mice in the control groups and mice that underwent tooth extraction. Notably, mice that underwent tooth extraction exhibited a considerable decline in cognitive function and increased in aggression 3 months after tooth extraction compared with the control groups (C57BL/6J and AppNL-G-Fmice). ResultsOur findings suggest that molar loss may lead to reduced 5-HT levels in the hippocampus, possibly mediated by the trigeminal nerve, contributing to the development of aggression and BPSD in AD. ConclusionThis study sheds light on the intricate relationships between oral health, 5-HT, and AD symptoms, offering valuable insights into potential therapeutic avenues for managing BPSD in patients with dementia.

Wrist-worn actigraphy in agitated late-stage dementia patients: A feasibility study on digital inclusion.

Wrist-worn actigraphy can be an objective tool to assess sleep and other behavioral and psychological symptoms in dementia (BPSD). We investigated the feasibility of using wearable actigraphy in agitated late-stage dementia patients. Agitated, late-stage Alzheimer's dementia care home residents in Greater London area (n=29; 14 females, mean age±SD: 80.8±8.2; 93.1% White) were recruited to wear an actigraphy watch for 4weeks. Wearing time was extracted to evaluate compliance, and factors influencing compliance were explored. A high watch-acceptance (96.6%) and compliance rate (88.0%) was noted. Non-compliance was not associated with age or BPSD symptomatology. However, participants with "better" cognitive function (R=0.42, p=0.022) and during nightshift (F1.240, 33.475=8.075, p=0.005) were less compliant. Female participants were also marginally less compliant (F1, 26=3.790, p=0.062). Wrist-worn actigraphy appears acceptable and feasible in late-stage agitated dementia patients. Accommodating the needs of both the patients and their carers may further improve compliance.

Factors associated with COVID-19 infection in patients with behavioural and psychological symptoms of dementia.

Factors associated with COVID-19 infection in patients with behavioural and psychological symptoms of dementia.

Shared Activities as a Protective Factor Against Behavioral and Psychological Symptoms of Dementia and Caregiver Stress.

Most persons with dementia experience behavioral and psychological symptoms (BPSD). While there is evidence that structured activity programs can be beneficial for persons with dementia and their caregivers, it is not well understood how joint engagement in shared activities affects BPSD and caregiver stress. The purpose of this study was to examine the moderating effect of doing a shared activity on the BPSD and caregiver stress. This study used an intensive longitudinal observational design in which caregivers completed baseline and once-a-day diary surveys for 21 days. Caregivers were asked whether they did a pleasant noncare activity with their relative, the presence of 8 BPSD, and their stress level. A moderation model in a structural equation model examined the relationship between these variables. Our sample consisted of 453 caregivers (87.4% female, 51.4% non-Hispanic White, mean age 53 years [standard deviation {SD}: 14]) and person living with dementia whose mean age was 79 years (SD: 9). On days when the caregivers engaged in a shared activity together with person living with dementia, there was a significant decrease in the BPSD (estimate -0.038, standard error [SE] = 0.016, 95% confidence interval [CI]: -0.069, -0.007, p value = 0.018). The effects of engaging in a shared activity decreased the impact of caregiver stress by 0.052 (estimate -0.052, SE = 0.018, 95% CI: -0.087, -0.017, p value = 0.004). At the between-person level, no differences were found in BPSD across caregivers who engaged or did not engage in shared activities. The results of our study indicate that doing a shared activity is associated with reduced BPSD among persons with dementia and may buffer the impact of caregiver stress on BPSD. Shared activities should be considered a key intervention component for dementia caregivers.

Cumulative Anticholinergic Burden and its Predictors among Older Adults with Alzheimer's Disease Initiating Cholinesterase Inhibitors.

Cumulative anticholinergic burden refers to the cumulative effect of multiple medications with anticholinergic properties. However, concomitant use of cholinesterase inhibitors (ChEIs) and anticholinergic burden can nullify the benefit of the treatment and worsen Alzheimer's disease (AD). A literature gap exists regarding the extent of the cumulative anticholinergic burden and associated risk factors in AD. Therefore, this study evaluated the prevalence and predictors of cumulative anticholinergic burden among patients with AD initiating ChEIs. A retrospective longitudinal cohort study was conducted using the Medicare claims data involving parts A, B, and D from 2013 to 2017. The study sample included older adults (65 years and older) diagnosed with AD and initiating ChEIs (donepezil, rivastigmine, or galantamine). The cumulative anticholinergic burden was calculated based on the Anticholinergic Cognitive Burden scale and patient-specific dosing using the defined daily dose over the 1 year follow-up period after ChEI initiation. Incremental anticholinergic burden levels were dichotomized into moderate-high (sum of standardized daily anticholinergic exposure over a year (TSDD) score ≥ 90) versus low-no (score 0-89). The Andersen Behavioral Model was used as the conceptual framework for selecting the predictors under the predisposing, enabling, and need categories. A multivariable logistic regression model was used to evaluate the predictors of high-moderate versus low-no cumulative anticholinergic burden. A multinomial logistic regression model was also used to determine the factors associated with patients having moderate and high burdens compared to low/no burdens. The study included 222,064 older adults with AD with incident ChEI use (mean age 82.24 ± 7.29, 68.9% females, 83.6% White). Overall, 80.48% had some anticholinergic burdenduring the follow-up, with 36.26% patients with moderate (TSDD scores 90-499), followed by 24.76% high (TSDD score > 500), and 19.46% with low (TSDD score 1-89) burden categories. Predisposing factors such as age; African American, Asian, or Hispanic race; and need factors included comorbidities such as dyslipidemia, syncope, delirium, fracture, pneumonia, epilepsy, and claims-based frailty index were less likely to be associated with the moderate-high anticholinergic burden. The factors that increased the odds of moderate-high burden were predisposing factors such as female sex; enabling factors such as dual eligibility and diagnosis year; and need factors such as baseline burden, behavioral and psychological symptoms of dementia, depression, insomnia, urinary incontinence, irritable bowel syndrome, anxiety, muscle spasm, gastroesophageal reflux disease, heart failure, and dysrhythmia.Most of these findings remained consistent with multinomial logistic regression. CONCLUSION: Four out of five older adults with AD had some level of anticholinergic burden, with over 60% having moderate-high anticholinergic burden. Several predisposing, enabling, and need factors were associated with the cumulative anticholinergic burden. The study findings suggest a critical need to minimize the cumulative anticholinergic burden to improve AD care.

Modeling and mobile home monitoring of behavioral and psychological symptoms of dementia (BPSD)

With the increasing global aging population, dementia care has rapidly become a major social problem. Current diagnosis of Behavior and Psychological Symptoms of Dementia (BPSD) relies on clinical interviews, and behavioral rating scales based on a period of behavior observation, but these methods are not suitable for identification of occurrence of BPSD in the daily living, which is necessary for providing appropriate interventions for dementia, though, has been studied by few research groups in the literature. To address these issues, in this study developed a BPSD monitoring system consisting of a Psycho-Cognitive (PsyCo) BPSD model, a Behavior-Physio-Environment (BePhyEn) BPSD model, and an implementation platform. The PsyCo BPSD model provides BPSD assessment support to caregivers and care providers, while the BePhyEn BPSD model provides instantaneous alerts for BPSD enabled by a 24-hour home monitoring platform for early intervention, and thereby alleviation of burden to patients and caregivers. Data for acquiring the models were generated through extensive literature review and regularity determined. A mobile robot was utilized as the implementation platform for improving sensitivity of sensors for home monitoring, and elderly individual following algorithms were investigated. Experiments in a virtual home environment showed that, a virtual BPSD elderly individual can be followed safely by the robot, and BPSD occurrence could be identified accurately, demonstrating the possibility of modeling and identification of BPSD in home environment.

The Health Outcomes of a Telegeriatrics Follow-Up Model on Dementia Patients and Their Caregivers in Cairo.

Background/Purpose: Older patients living with dementia and their caregivers are ideal beneficiaries of telemedicine, cost-effectiveness, caregiver satisfaction, and physician acceptance. The aim is to study the effect of a telemedicine dementia enabled program on the health outcome of dementia patients and their caregivers, as regard the patient outcome, caregiver stress, and caregiver satisfaction. Methods: Ninety-seven (n = 97) elderly subjects were recruited from the outpatient clinics and inpatient ward of Geriatrics Hospital, Ain Shams University Hospitals. Seventy subjects completed 6 months of follow-up using a telegeriatrics model. Patient outcomes (delirium, behavioral and psychological symptoms of dementia [BPSD], and need for home consultations, emergency room [ER] visits, clinic visits, and hospital admissions) were assessed and followed. Caregiver stress was evaluated and monitored using the abridged Arabic version of the Zarit Burden Interview ZBI-A. Caregiver satisfaction was assessed using dedicated satisfaction questionnaire designed by Ain Shams Virtual Hospital. Results: elirium episodes, BPSD episodes, and the need for home consultations, clinic visits, ER visits, and hospital admissions. This was statistically significant after the second, fourth, and sixth months of follow-up (p-value <0.001). In addition, the telegeriatrics follow-up model had a positive effect on both caregiver stress and caregiver satisfaction. Conclusions: The telegeriatrics follow-up model is a useful tool in the improvement of health outcomes of dementia patients, reduction of caregiver stress, and achievement of caregiver satisfaction.

Implementation of STAR-VA for behavioral symptoms of dementia in acute care: Lessons learned

As the population grows, the incidence of dementia will increase. A common occurrence in people with dementia is behavioral and psychological symptoms of dementia (BPSD). BPSD can include apathy, aggression, resistance to care, and agitation. BPSD can start or worsen during an acute hospitalization, but these units are not well-equipped to handle BPSD, often relying on pharmacological interventions to address distress behaviors. One known behavioral intervention for BPSD is STAR-VA, an interdisciplinary approach to managing these behaviors. However, this intervention has not been utilized in acute care. Our team implemented STAR-VA in acute care at a Veterans Affairs hospital in the northeastern United States. Using the VA's Quality Enhancement Research Initiative (QUERI) implementation roadmap to guide our work, we first outlined the problem, completed a needs assessment with staff, and began implementation. Results from this quality improvement project demonstrated the feasibility and efficacy of STAR-VA in an acute care setting.

Cannabinoids for Behavioral Symptoms in Dementia: An Overview.

Dementia, with loss of memory, cognitive abilities, and independent daily functioning, is increasing worldwide, related to an aging population. Currently, there is no curative treatment for dementia. Treatment of the frequently occurring behavioral and psychological symptoms of dementia (BPSD) is partially effective and associated with significant side effects. Cannabinoids are lipophilic molecules acting on the CB1 end CB2 receptors, essential for main biological processes such as sleep, appetite, memory, and pain. Cannabinoids might have a positive impact on amyloid formation in Alzheimer's disease, the main form of dementia, and on BPSD symptoms. Most knowledge currently concerns delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). In the context of dementia and BPSD, THC might be beneficial for associated spasticity and possible pain or lack of appetite and CBD probably works better on sleep, agitation, and anxiety. This overview of prospective clinical studies and randomized clinical trials, published between 2005 and April 2023, using cannabinoids for BPSD suggests that older studies using low-dose oral synthetic THC showed no positive results. Still, more recent studies using THC/CBD-based oral medication at higher doses show promising results and are feasible and safe in this elderly polymedicated population. Several RCTs are ongoing and planned worldwide, and we hope other trials will follow to establish clinical efficiency and optimal dosing, as well as other outcomes such as deprescribing other medications and facilitation of care. We suggest that researchers also address the more sociological aspects of prescribing cannabinoids for dementia and BPSD in their specific context.

Impact of digital assistive technologies on the quality of life for people with dementia: a scoping review

BackgroundDigital assistive technologies (DATs) have emerged as promising tools to support the daily life of people with dementia (PWD). Current research tends to concentrate either on specific categories of DATs...

In patients with behavioral and psychological symptoms of dementia, does deprescribing antipsychotic medication result in worsening symptoms?

In patients with behavioral and psychological symptoms of dementia, does deprescribing antipsychotic medication result in worsening symptoms?

1852 The effectiveness of structured physical activity on agitation for people living with dementia: a rapid review

Abstract Background Managing agitation and other behavioural and psychological symptoms of dementia (BPSD) is a significant challenge and impacts on quality of life for people living with dementia. The priority is to find effective non-pharmacological interventions as drug treatments can have significant side effects. Objectives This review evaluates the effectiveness of structured physical activity on agitation in people living with dementia Methods A rapid review of the literature was carried out following PRISMA guidelines. Four electronic databases were searched (Cochrane CENTRAL, MEDLINE, CINAHL and Embase) looking for interventional studies that used a structured physical activity programme in people with a diagnosis of dementia, studied the effects of this activity on BPSD and compared this with a control group that did not follow an exercise programme. Results From 112 identified articles, 13 were included in this review, involving a total of 1546 participants. The results were analysed and synthesised according to the type of exercise intervention (aerobic, multicomponent or strength training) and by the frequency and intensity of the intervention. Quality assessment using CAPS guidelines indicated four studies as higher quality with seven being of moderate quality. The results showed that aerobic exercise in particular appears to be effective in reducing agitation and those studies with higher adherence to exercise tended to demonstrate more positive effects on agitation and BPSD. Conclusions There is evidence that physical activity can be effective in the reduction of agitation in older adults with a dementia diagnosis. Further research is needed to clarify the type of intervention that is most beneficial and strategies to make physical activity more acceptable and available to older people with dementia need to be es established.

2048 Antipsychotic medication prescription in elderly patients in Royal Gwent Hospital, Wales

Abstract Introduction he use of anti-psychotics is higher in older people than their younger adult counterparts due to high prevalence of dementia/delirium. Anti-psychotic drugs cause side effects which include cardiovascular, metabolic, extra pyramidal and risk of falls. So, we set out to do a QIP on antipsychotic medication prescription on our Geriatric wards comparing it with NICE guidelines. Method We had 2 approaches to use. Firstly, we prepared a check list for anti-psychotic medication monitoring according to NICE guidelines 2021 and we applied this retrospectively to our patients who had been initiated on anti-psychotics within the last year, the aim being to compare our practice with best practice. Secondly, we prepared a questionnaire for doctors to assess their knowledge about anti-psychotic NICE guidelines and distributed this to our junior doctors in RGH. Results • Main Indication for prescription was Behavioural and psychological symptoms of dementia (BPSD) - 94% of the time • Risperidone was the most commonly prescribed (64%) antipsychotic. • 83% of them had non-pharmacological methods tried before considering antipsychotic medications. • 82% had their baseline ECGs checked and falls risk assessments done • 35% had their lipids checked and 47% had their HbA1c checked • 52% of the doctors were aware about NICE guidelines on prescribing anti-psychotic medications • 70% of the doctors had knowledge about the side effects. Conclusions Our study showed the most commonly used antipsychotic drug was risperidone. We were good at documenting the indication, trying non-pharmacological methods and discussing side effects with patients/family. Hba1c, lipids and prolactin were not often checked, showing room to develop best practice. We are in the process of finalising stickers as a checklist when starting antipsychotics. To improve knowledge, we have presented the findings and aim to put up posters on wards and to do regular teachings.

Aberrant Cortical Activity in 5xFAD Mice in Response to Social and Non-Social Olfactory Stimuli.

Neuroimaging studies investigating the behavioral and psychological symptoms of dementia (BPSD)- such as apathy, anxiety, and depression- have linked some of these symptoms with altered neural activity. However, inconsistencies in operational definitions and rating scales, limited scope of assessments, and poor temporal resolution of imaging techniques have hampered human studies. Many transgenic (Tg) mouse models of Alzheimer's disease (AD) exhibit BPSD-like behaviors concomitant with AD-related neuropathology, allowing examination of how neural activity may relate to BPSD-like behaviors with high temporal and spatial resolution. To examine task-dependent neural activity in the medial prefrontal cortex (mPFC) of AD-model mice in response to social and non-social olfactory stimuli. We previously demonstrated age-related decreases in social investigation in Tg 5xFAD females, and this reduced social investigation is evident in Tg 5xFAD females and males by 6 months of age. In the present study, we examine local field potential (LFP) in the mPFC of awake, behaving 5xFAD females and males at 6 months of age during exposure to social and non-social odor stimuli in a novel olfactometer. Our results indicate that Tg 5xFAD mice exhibit aberrant baseline and task-dependent LFP activity in the mPFC- including higher relative delta (1-4 Hz) band power and lower relative power in higher bands, and overall stronger phase-amplitude coupling- compared to wild-type controls. These results are consistent with previous human and animal studies examining emotional processing, anxiety, fear behaviors, and stress responses, and suggest that Tg 5xFAD mice may exhibit altered arousal or anxiety.

Behavioral and psychological symptoms of dementia and adverse patient outcomes post-hospitalization

Objectives The occurrence of behavioral and psychological symptoms of dementia (BPSD) are associated with adverse outcomes but have largely been studied in populations outside of acute care. The current study examines (1) the prevalence of BPSD during acute hospitalization and (2) if BPSD are predictive of adverse patient outcomes. Methods A secondary analysis of Family-centered Function-focused Care (Fam-FFC) data including 461 patients with dementia/care partner dyads assessed at hospital admission, discharge, 2 months, and 6 months post-discharge, was conducted. Prevalence of BPSD (Neuropsychiatric Inventory-Questionnaire total and Frontal, Hyperactivity, Mood, and Psychosis sub-categories), associations with patient and care partner characteristics, and prediction of adverse events (falls, emergency room [ER] visits, hospitalizations, injury) were examined. Results BPSD were highly prevalent (93.9% admission, 86.7% discharge). The most common symptom cluster at admission was Hyperactivity (76.7%) followed by Mood (72.3%) and Psychosis (71.9%), and Frontal (25.9%). Higher admission Hyperactivity was associated with ER admissions at 2 months, higher discharge Hyperactivity was associated with ER admissions and hospitalizations at 2 months, and change in Psychosis was associated with ER admissions at 2 months. Conclusions These findings highlight BPSD during hospitalization as potentially modifiable risk factors of adverse outcomes.

Profile of BPSD in Elderly People with Dementia at UPTD Griya Werdha Jambangan Surabaya

Background: One of the many factors that can complicate providing care for a person with dementia is BPSD, which affects 90% of those with the disease and appears to put more stress on caregivers. It is considerably harder to manage some BPSD types than others. When BPSD therapy is insufficient, people with dementia—especially those living in care facilities—frequently have a worse quality of life. Objective: To understand the profile of BPSD in elderly people with dementia at UPTD Griya Werdha Jambangan Surabaya. Method: The research was conducted through interviews with elderly people and their caregivers at UPTD Griya Werdha Jambangan Surabaya in May–June 2023, using the MoCA-Ina and NPI-NH questionnaire. Descriptive analysis was performed to outline the distribution of presentation and frequency for each research variable. Results: The number of elderly people who met the criteria was 27, while the number of elderly caregivers interviewed was 4. The most common BPSD experienced by most elderly people with dementia was irritability/lability. BPSD with the highest occupational disruptiveness was agitation. Anxiety was the domain with the highest average scores. BPSD was more commonly found in women, while irritability/lability was the most common symptoms in both genders. Furthermore, irritability/lability is the most prevalent BPSD across all age groups. Conclusion: Out of 27 elderly people with dementia, the most common BSPD was irritability/lability. In order to improve dementia treatments and to enable dementia elderly caregivers provide the best care possible for the elderly, it is suggested that more data and research—especially qualitative research—relating to dementia and BPSD in Indonesia need to be collected. Keywords: Dementia, Behavioral and Psychological Symptoms of Dementia (BPSD), Neuropsychiatric Inventory (NPI), elderly, caregivers, nursing home, mental disorder

The usability of virtual reality to train individuals in responding to behaviors related to dementia.

Dementia is associated with several behavioral changes globally referred to as Behavioral and Psychological Symptoms of Dementia (BPSD) of which many are recognized to be the expression of unmet needs triggered by environmental factors. BPSD are an extreme source of stress for family care partners and health care providers alike and can be the reason why people living with dementia (PLWD) are placed in long-term care homes (LTCH). The overall goal of this project was to examine whether a virtual environment that includes a virtual LTCH resident with dementia in a lifelike situation could be useful and usable for health care providers and care partners to identify potential triggers to BPSDs while being engaged emotionally with the scenario. Twenty-three health care professionals working with PLWD, 25 care partners to PLWD, 27 students in a health-related field, and 11 university/community college faculty members teaching courses relevant to gerontology tested the application which depicted a meal-time scenario. In addition to being asked about the behavioral triggers in the scene, participants were asked about the usefulness and usability of the tool for training. Presence and simulator sickness were also measured. Results suggest that participants generally felt present and emotionally engaged. They could identify the potential triggers for the observed behaviors in the virtual human with dementia as well as suggest some solutions. The majority (87% of participants) found the tool easy to use. Many participants identified the inability to interact with the virtual humans as a shortfall, and few reported mild to moderate levels of simulator sickness. As the behavioral changes associated with dementia can cause extreme stress for those interacting with PLWD, developing an effective and efficient training tool could significantly improve well-being for all involved. The investigators see the development and testing of an interactive version of this virtual environment as a next step in making this a clinically relevant training tool.

A mobile app to predict and manage behavioral and psychological symptoms of dementia: Development, usability, and users' acceptability.

Objective: Non-pharmacological interventions are considered the first-line treatment for behavioral and psychological symptoms of dementia (BPSD); however, traditional approaches have shown only small effect sizes. Mobile technology offers an opportunity to improve BPSD assessment and management in people living with dementia (PLWD). We aimed (1) to develop a mobile application (app) featuring a real-time BPSD diary, machine-learning-based BPSD prediction, and individualized non-pharmacological care programs, including therapeutic use of music and reminiscent content, and (2) to test its usability, acceptability, and preliminary efficacy among PLWD and caregivers. Methods: An Android-based app was developed through the following three phases: (1) needs assessment, (2) software development and initial testing with experts, and (3) beta-testing with end users who were dyads of PLWD and caregivers. The preliminary efficacy, usability, and acceptability of the app were assessed using validated BPSD questionnaires and face-to-face interviews with the dyads. Logs of the dyads' program participation (i.e., types, time, and duration), BPSD diaries, and engagement levels of PLWD were also collected through the app. Results: Five dyads created BPSD diaries (range: 22-48) over 3 weeks. Overall, the BPSD symptoms decreased after the beta-testing period. Each dyad participated in the care programs for 106-204 min, during which music alone was most frequently used. Engagement levels ranged from 3.38 to 4.94 (out of 5). Conclusions: The app was deemed usable, acceptable, and feasible for PLWD and caregivers. The upgraded app will be further tested and can be easily implemented at home or in the community.