Cognitive rehabilitation in patients with mild cognitive impairment

HEPPI: a randomized controlled trial of the efficacy of a cognitive-emotional intervention for homebound older adults

OBJECTIVES

This randomized controlled trial aimed to assess the efficacy of the Homebound Elderly People Psychotherapeutic Intervention (HEPPI), a home-delivered cognitive-emotional intervention, among the homebound older population presenting with mild cognitive impairment and depressive or anxiety symptoms.

METHODS

Participants were randomly assigned either to the intervention group or the treatment-as-usual group and completed baseline, post-intervention, and three-month follow-up assessments. Changes in episodic memory and symptoms of depression and anxiety were the primary outcomes. Secondary outcomes included changes in global cognition, attentional control, subjective memory complaints, functional status, and quality of life. Data were analyzed on an intention-to-treat basis employing a linear mixed models approach. ClinicalTrials.gov identifier: NCT05499767.

RESULTS

Compared with the treatment-as-usual group, the HEPPI group reported significant immediate improvement in cognition, mood, and daily functional performance. Positive effects of HEPPI were maintained over the follow-up phase only in depressive symptomatology, perceived incapacity to perform advanced instrumental activities of daily living, and self-reported emotional ability. A significant impact of the intervention on the subjective memory complaints level was observed only three months after the intervention.

CONCLUSIONS

This study suggests that HEPPI may be a promising home-delivered cognitive-emotional intervention to help homebound older adults improve their mental health.

Real-world compensatory strategy use in community-dwelling mid-life and older adults: An evaluation of quality

Objective: Older adults often spontaneously engage in compensatory strategies (CS) to support everyday task completion, but factors that influence success of chosen CS remain unclear. This study examines whether real-world prospective memory (PM) task completion is better predicted by CS count or a CS quality rating. Method: Seventy mid-life and older adult participants were presented four novel, real-world PM tasks via remote assessment and encouraged to use their typical CS. The examiner captured detailed information about planned CS at task presentation (T1) and utilized CS at follow-up testing (T2). From this information, count (CS Count; quantity of CS) and quality (CS Quality; rating of CS thoroughness and utility) scores were coded separately for the planned and utilized CS. PM task performance accuracy was also coded (PM Accuracy). Results: Hierarchical regressions revealed planned CS Count and Quality did not predict PM Accuracy. In contrast, the utilized CS Quality predicted a significant amount of PM Accuracy variance over and above CS Count, global cognition, and age (R2 = .47, ΔR2 = .24, ΔF = 29.36, p < .001, f2 = .45). Furthermore, utilized CS Quality accounted for a similar amount of variance in PM Accuracy when utilized CS Count was removed from the model. Conclusions: This study's CS coding system can capture and quantify the quality of strategies, which uniquely predicts real-world PM performance. This coding system may provide researchers with a nuanced CS measure and lead to improved CS interventions designed to support everyday PM performance, such as targeted CS trainings.

Delivery of Neuropsychological Interventions for Adult and Older Adult Clinical Populations: An Australian Expert Working Group Clinical Guidance Paper

Delivery of neuropsychological interventions addressing the cognitive, psychological, and behavioural consequences of brain conditions is increasingly recognised as an important, if not essential, skill set for clinical neuropsychologists. It has the potential to add substantial value and impact to our role across clinical settings. However, there are numerous approaches to neuropsychological intervention, requiring different sets of skills, and with varying levels of supporting evidence across different diagnostic groups. This clinical guidance paper provides an overview of considerations and recommendations to help guide selection, delivery, and implementation of neuropsychological interventions for adults and older adults. We aimed to provide a useful source of information and guidance for clinicians, health service managers, policy-makers, educators, and researchers regarding the value and impact of such interventions. Considerations and recommendations were developed by an expert working group of neuropsychologists in Australia, based on relevant evidence and consensus opinion in consultation with members of a national clinical neuropsychology body. While the considerations and recommendations sit within the Australian context, many have international relevance. We include (i) principles important for neuropsychological intervention delivery (e.g. being based on biopsychosocial case formulation and person-centred goals); (ii) a description of clinical competencies important for effective intervention delivery; (iii) a summary of relevant evidence in three key cohorts: acquired brain injury, psychiatric disorders, and older adults, focusing on interventions with sound evidence for improving activity and participation outcomes; (iv) an overview of considerations for sustainable implementation of neuropsychological interventions as 'core business'; and finally, (v) a call to action.

Dysexecutive Behaviors Mediate the Relationship Between Functional Impairment and Caregiver Burden in Mild Cognitive Impairment

Mild cognitive impairment (MCI) is often accompanied by executive dysfunction (ED), dysexecutive behaviors (DB), and functional impairment (FI). The respective contributions of ED, DB, and FI to caregiver burden in MCI are not well understood. The present study hypothesized that while all factors would predict caregiver burden in MCI, ED and family-reported DB would account for greater variance in caregiver burden and mediate the relationship between FI and caregiver burden. In our sample (n = 94), linear regression revealed that FI and DB predicted caregiver burden, but that DB predicted caregiver burden above and beyond the contribution of FI. DB mediated the relationship between FI and caregiver burden. These results add to a body of work demonstrating that presence of DB and FI are distressing to family members, even in mild disease stages. Because DB may account for the relationship between FI and caregiver burden, early identification of family members reporting DB in the person with MCI is imperative so that supports can be made available.

Efficacy of cognitive remediation on activities of daily living in individuals with mild cognitive impairment or early-stage dementia: a systematic review and meta-analysis

INTRODUCTION

Instrumental activities of daily living are essential for ageing well and independent living. Little is known about the effectiveness of cognitive remediation on instrumental activities of daily living performance for individuals with mild cognitive impairment or early-stage dementia. The objective of this study was to evaluate the immediate and long-term carryover effects of cognitive remediation on improving or maintaining instrumental activities of daily living performance in older adults with mild cognitive impairment and early-stage dementia.

METHODS

Randomized controlled trials published from 2009 to 2022 were identified in OvidSP versions of MEDLINE and Embase, EBSCO versions of CINAHL and PsycINFO, and the Cochrane Central Register of Controlled Trials. A narrative synthesis of the findings was reported on the outcomes of the included studies. Relevant data was extracted and analysed using R software's 'metafor' package with a random effect model with 95% CI.

RESULTS

Thirteen studies, totalling 1414 participants, were identified in the narrative analysis. The results of meta-analysis, inclusive of 11 studies, showed that cognitive remediation elicited a significant improvement in the instrumental activities of daily living performance (SMD: 0.17, 95% CI 0.03-0.31). There was insufficient evidence of any lasting effect.

DISCUSSION

Cognitive remediation is effective in improving instrumental activities of daily living performance immediately post-intervention in older adults with mild cognitive impairment and early-stage dementia. It appears that individualized interventions with a short duration, such as 10 hours, might be beneficial.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42016042364.

Feasibility, Acceptability, and Preliminary Efficacy of A Cognitive-Emotional Intervention Program in Homebound Older Adults: A Pilot Randomized Controlled Trial

OBJECTIVES

To conduct a pilot randomized controlled trial to assess the feasibility, acceptability, and preliminary efficacy of the Homebound Elderly People Psychotherapeutic Intervention (HEPPI) among homebound older adults with mild cognitive impairment and depressive or anxious symptomatology.

METHODS

Fifty-one participants were randomly assigned to the intervention group or to the wait-list control group and completed baseline and post-intervention assessments. Feasibility and acceptability were the primary outcomes. Secondary outcomes included changes in cognitive function, depressive and anxiety symptoms, subjective memory complaints, functional status, and quality of life. Intervention effects were assessed both at a group level (two-way mixed ANOVA) and at an individual level (Reliable Change Index).

RESULTS

The HEPPI was a feasible and acceptable non-pharmacological intervention. Compared to the wait-list control group, the intervention group showed significant improvement in cognitive, emotional, and functional domains at post-intervention. Differences between groups in the distributions by clinical change categories were observed.

CONCLUSIONS

Results provide evidence of the HEPPI's feasibility, acceptability, and preliminary efficacy in increasing the cognitive and functional performance of homebound older adults and reducing their psychological symptomatology.

CLINICAL IMPLICATIONS

Home-delivered cognitive-emotional interventions may be a promising and acceptable mental health approach for homebound older adults, improving their cognitive and emotional functioning.

Episodic memory training in elderly: A systematic review

Introduction:

Episodic memory is a cognitive process that allows the recall of experiences, learning, and the pursuit of future goals. During the aging process, episodic memory declines negatively, impacting social and psychological aspects in the elderly. Such intervention strategies as cognitive training are non-pharmacological ways of reducing these losses.

Objective

We systematically reviewed studies of the cognitive training of episodic memory in healthy elderly individuals and elderly individuals with clinical conditions.

Method

We systematically searched the PubMed, PsycNET, Web of Science, and SciELO databases using the descriptors “Episodic Memory” AND “Training” AND “Elderly” OR “Aging” OR “Dementia” in English and translated into Portuguese.

Results

Of the 572 articles that were identified by the search, 23 were included in the final analysis. The main variables that comprised the intervention protocols (i.e., characteristics of the sample, type of control group, mode of episodic memory training, and duration of training) were investigated, as well as the outcome variables, efficacy, and risk of bias. The main results indicated effectiveness with regard to different forms of the cognitive training of episodic memory.

Conclusion

Episodic memory training among the elderly can mitigate the negative effects of cognitive decline in dementia and healthy subjects promoting impacts at social, psychological, and economic levels. Although it is a widely studied topic, further empirical studies on the utility of episodic memory training in healthy elderly individuals and elderly individuals with clinical conditions are still needed.

Kognitive Interventionen bei der Alzheimer-Krankheit

Cognitive interventions (CI) are an important part in the treatment of Alzheimer's disease (AD). These non-pharamcological treatment options are manifold and can be matched to a patient's particular symptoms and needs. This article gives an overview of CIs and their theoretical background, as well as empirical evidence concerning their efficacy at different stages of the disease. Specific determinants of their effectiveness and possible clinical applications are discussed, while also recent developments, such as computer-based CIs, are considered.

Keeping Your Glass Half Full: Cognitive Strategy Intervention for Older Adults

When older adults experience memory dysfunction it often compromises their confidence. Older adults’ confidence in their memory can be improved through interventions designed to teach strategies for improving everyday memory functioning. The present study examines the efficacy of a five-session cognitive strategy program designed to be optimistic and inclusive for older adults living in a residential community. The memory self-efficacy of participants in the intervention group improved significantly relative to a control group. Additionally, participants’ knowledge of memory strategies improved overall after completion of this program. Such findings highlight the benefits of practical cognitive-behavioral interventions for bolstering older adults’ confidence and knowledge of memory strategies.

A Conceptual View of Cognitive Intervention in Older Adults With and Without Cognitive Decline-A Systemic Review

Background: Dementia is the one of the most common and prominent disease in the elderly person that results in the Cognitive interventions. In this study, we aim to conceptualize the cognitive intervention for older adults with and without cognitive dysfunction and to clarify the heterogeneity existing in this literature field by determining the main variables implicated. Methods: We conducted a study analysis using previous literature highlighting the significant data reporting empirical results from cognitive intervention for healthy older adults and other seniors with different types of dementia. Each paper was reviewed in terms of compensatory cognitive training, cognitive remediation, enrichment, cognitive activation, brain training, cognitive stimulation, cognitive training, and cognitive rehabilitation. The research analysis was performed following rigorous inclusion and exclusion criteria with the purpose of collecting relevant answers to our research questions. Results: We included a total of 168 studies in our review. Our findings indicated heterogeneity regarding methods, concepts, and procedures. Additionally, the values were integrated using different information existing in this field. Conclusion: In conclusion, we highlighted that this is the first review that clarify the discrepancy of various existing definitions, methods, and procedures, as well as the overlapping information in the cognitive interventions.

Slowing dementia symptoms - a qualitative study on attitudes and experiences of general practitioners in Germany

BACKGROUND

There is currently no cure for dementia but general practitioners (GPs) have therapeutic options available to counteract the progression of mild cognitive impairment, including drug and non-drug treatment. So far, few studies have investigated treatment strategies preferred by GPs.

OBJECTIVES

This study aimed to gain an overview of GPs' attitudes towards influencing the progression of dementia, their involvement regarding dementia prevention and perceived effective approaches. It also elucidated the challenges experienced by GPs and desired optimisation measures towards reinforcing secondary prevention.

METHODS

Between June 2020 and March 2021, 64 semi-standardised interviews amongst GPs were conducted in all federal states of Germany. Thirty interviews were carried out in person and 34 by phone. The data were analysed according to qualitative content analysis.

RESULTS

Many interviewees see great importance in secondary dementia prevention and believe they could make an effective contribution, some of them using non-drug approaches. GPs play a role in guiding patients and relatives towards support services. Some doctors consider drug treatment as the only option towards influencing the progression of dementia, showing low expectations on self-efficacy. Interdisciplinary collaboration is a frequent challenge, which often conflicts with a coherent treatment strategy.

CONCLUSION

Many GPs feel confident about influencing the progression of dementia and believe they can intervene effectively, using various (non-drug) treatment measures and referrals to support services. GPs perceive challenges, including obstacles in interdisciplinary collaboration and negative impacts after drug administration. To improve the conditions for GP intervention, it depends on expanding interdisciplinary collaboration and care strategies.

Non-Pharmacological Treatments of Neuropsychiatric Symptoms in Mild Cognitive Impairment (MCI)

Mild cognitive impairment (MCI) is a syndrome defined by objective cognitive deficits that do not impact functional independence. Individuals with MCI develop dementia at an annual rate of 10 to 15%. Neuropsychiatric symptoms (NPS) are common non-cognitive features of neurocognitive disorders and have a major impact on the wellbeing and quality of life of affected individuals and their families. Non-pharmacological interventions for NPS are considered the first-line treatment because of the limited efficacy and side-effect potential of current pharmacological agents. This article summarizes the literature on non-pharmacological treatments for NPS in MCI. The limited number of studies specific to individuals with MCI and its various etiologies, as well as the overall heterogeneity of research design and methodologies, make the evidence base inconclusive. Nevertheless, some studies support psychosocial interventions aimed at individuals with MCI and their caregivers.

Effectiveness of psychosocial interventions among older adults with mild cognitive impairment: a systematic review and meta-analysis

OBJECTIVES

This review aimed to examine available evidence concerning the effectiveness of psychosocial interventions in improving memory, executive function, depression and activities of daily living (ADL) in older adults with MCI.

METHODS

Eight electronic databases were used to conduct a comprehensive literature search for published and unpublished studies. A primary outcome was cognitive function, including memory and executive function. Secondary outcomes were depression and ADL. Two researchers independently appraised quality of included studies and extracted data. Meta-analysis, heterogeneity test, subgroup analysis and sensitivity analyses were performed.

RESULTS

Ten studies (out of 1,265 records) were included in this review. Psychosocial interventions contributed to a significant improvement in memory, not executive function, depression and ADL. Subgroup analyses suggested that interventions with a longer duration, more therapeutic sessions, and individual format had larger effect sizes. Strategies found to enhance memory entailed behavior modification and activation, memory training, visual imagery, storytelling, memory aids, journaling, and exercise.

CONCLUSION

Healthcare providers may offer psychosocial interventions to client with MCI in clinical settings. Higher quality trials should be conducted to increase solid evidence in this domain.

Interventions to support recovery following an episode of delirium: A realist synthesis

OBJECTIVES

Persistent delirium is associated with poor outcomes in older adults but little is known about how to support longer-term recovery from delirium. The aim of this review was to identify and synthesise literature to understand mechanisms of recovery from delirium as a basis for designing an intervention that enables more effective recovery.

METHODS

A systematic search of literature relevant to the research question was conducted in two phases. Phase one focused on studies evaluating the efficacy of interventions to support recovery from delirium, and stage two used a wider search strategy to identify other relevant literature including similar patient groups and wider methodologies. Synthesis of the literature followed realist principles.

RESULTS

Phase one identified four relevant studies and stage two identified a further forty-six studies. Three interdependent recovery domains and four recovery facilitators were identified. Recovery domains were 1) support for physical recovery through structured exercise programmes; 2) support for cognitive recovery through reality orientation and cognitive stimulation; 3) support for emotional recovery through talking with skilled helpers. Recovery facilitators were 1) involvement and support of carers; 2) tailoring intervention to individual needs, preferences and abilities; 3) interpersonal connectivity and continuity in relationships and; 4) facilitating positive expressions of self.

CONCLUSIONS

Multicomponent interventions with elements that address all recovery domains and facilitators may have the most promise. Future research should build on this review and explore patients', carers', and professionals' tacit theories about the persistence of delirium or recovery from delirium in order to inform an effective intervention.

Effects of Different Finger Grips and Arm Positions on the Performance of Manipulating the Chinese Brush in Chinese Adolescents

This study aimed to investigate the effects of finger grip and wrist position on Chinese calligraphy handwriting (CCH). Thirty participants were recruited in the study and asked to manipulate the Chinese brush using two finger grip methods (three-finger grip and five-finger grip) and two wrist positions (suspended wrist and raised wrist). Three experimental writing tasks were applied to investigate writing stability, agility, and hand–eye coordination, and to evaluate the completion time (s), area of error (cm²), and error times. Subjective responses (arm aching level, ease of grip, exertion level, and comfort) regarding the four combinations of Chinese brush manipulation were measured. The results indicated significantly better performance with the three-finger grip for the stability and agility tests, and with the five-finger grip for the hand–eye coordination task. Using the suspended wrist position for CCH allowed better agility and hand–eye coordination than the raised wrist position. In consideration of the results of the four operational combinations, the three-finger grip with a suspended wrist position demonstrated the best performance in both objective and subjective measurements. It is recommended for application in the early learning stage. These findings can be considered when teaching Chinese brushes for beginners of CCH in schools.

Effects of Cognitive Sensory Motor Training on Lower Extremity Muscle Strength and Balance in Post Stroke Patients: A Randomized Controlled Study

BACKGROUND

Sensory motor impairment, the most common neuromuscular condition in stroke patients, often contributes to muscle weakness and imbalance.

OBJECTIVE

The purpose of this research was to investigate the effects of cognitive sensory-motor training (CSMT) on the muscle strength and balance ability in post-stroke patients.

METHODS

Thirty-five participants after stroke were randomly assigned to the CSMT (n = 17) or control group (n = 18). All participants received 30 min of training each time, five times per week, for six weeks. Lower extremity muscle strength of tibialis anterior (LEMTA) was evaluated using a digital muscular dynamometer. The Medical Research Council (MRC) scale was used to evaluate muscle strengths of the hip joint, knee joint, and ankle joint. For balance ability test, the center of pressure (COP) movement distance and limited of stability (LOS) were measured using BioRescue.

RESULTS

LEMTA, MRC scale, balance ability were significantly more improved in the CSMT group than in the control group (p < 0.05).

CONCLUSIONS

Our findings indicate that CSMT is beneficial and effective for improving muscle strength of the lower extremity and balance ability of post-stroke patients.

Psychotherapeutic Interventions for Dementia: a Systematic Review

Background and Objectives

While a range of psychotherapeutic interventions is available to support individuals with dementia, comprehensive reviews of interventions are limited, particularly with regard to outcomes related to adjustment and acceptance. The current review assesses studies that evaluated the impact of various forms of psychotherapeutic interventions on acceptance and adjustment to changing life circumstances for older adults with cognitive impairment.

Research Design and Methods

A systematic search of PubMed, PsycINFO, and CINAHL databases was conducted, restricted to articles published in English within the last 16 years (from 2003 to 2019). Twenty-four articles were identified that examined the effects of psychotherapeutic interventions on outcomes related to acceptance and adjustment which included internalizing symptoms, quality of life, self-esteem, and well-being. Fifteen studies examined interventions targeted towards individuals with cognitive impairment, while nine studies also targeted their caregivers.

Results

Interventions that impacted outcomes related to acceptance and adjustment (e.g., adaptation, depressive symptoms, helplessness, self-esteem, and quality of life) varied in their theoretical approach, which incorporated elements of cognitive behavioural therapy (CBT), problem-solving therapy, psychotherapy, reminiscence therapy, interpersonal therapy, mindfulness-based therapy, and meaning-based, compassion-focused therapy. Among all interventions, reductions in depression were the most commonly reported treatment outcome particularly among interventions that incorporated problem-focused and meaning-based therapies. Mixed findings were reported with regard to outcomes related to helplessness, quality of life, self-esteem, and life satisfaction indices for individuals with cognitive impairment.

Discussion and Implications

There is some support for the effectiveness of psychotherapeutic interventions on improving acceptance and adjustment in older adults with cognitive impairment, particularly with regard to reducing depressive symptoms.

Daily Activities: The Impact of COPD and Cognitive Dysfunction

OBJECTIVE

Chronic obstructive pulmonary disease (COPD) is characterized by airflow limitation; however, pulmonary function does not fully account for patients' functional difficulties. The primary aim of the study was to determine the association between several domains of cognition and daily activity among those with COPD.

METHOD

Eighty-nine former smokers completed a neuropsychological battery including measures across multiple domains of cognition, pulmonary function measures, and daily activity questionnaires. Using a cross-sectional design, we compared daily activity between former smokers with and without COPD using two measures (St. George's Respiratory Questionnaire [SGRQ] Activity Subscale and Lawton Instrumental Activities of Daily Living [IADL] Scale) and examined the association between cognition and daily activity among those with COPD.

RESULTS

As expected, former smokers with COPD reported more difficulty than those without COPD on both activity measures (SGRQ Activity Subscale p < .001; Lawton IADL Scale p = .040). Among former smokers with COPD, poorer delayed recall was associated with more difficulty with daily activities (SGRQ Activity Subscale) (p = .038) while adjusting for severity of airflow limitation, exercise tolerance, oxygen use, dyspnea, and symptoms of anxiety and depression.

CONCLUSION

The findings suggest that cognition is associated with daily activity in patients with COPD. Future research should examine whether cognitive interventions may help to maximize patients' engagement in daily activities.

Incorporating a Usual Care Comparator into a Study of Meditation and Music Listening for Older Adults with Subjective Cognitive Decline: A Randomized Feasibility Trial

BACKGROUND

Recent studies suggest meditation and music listening (ML) may improve cognitive and psychosocial outcomes in adults with subjective cognitive decline (SCD). However, lack of a usual care group has limited conclusions.

OBJECTIVE

To assess the: 1) feasibility of incorporating an enhanced usual care (EUC) comparator in a trial of Kirtan Kriya meditation (KK) and ML for adults experiencing SCD; and 2) preliminary effects of active treatment (KK/ML) versus an EUC program.

METHODS

Forty participants with SCD were randomized 1:1:2 to a 12-week KK, ML, or EUC program. KK and ML participants were asked to practice 12 minutes/day; EUC participants were given a comprehensive educational packet regarding healthy aging and strategies for improving/maintaining brain health and asked to record any activities or strategies used. Feasibility was assessed using measures of retention, adherence, treatment expectancies, and participant satisfaction, as well as information from exit questionnaires and daily practice/activity logs. Cognitive functioning, stress, mood, sleep-quality, and health-related quality of life (QOL) were measured pre- and post-intervention using well-validated instruments.

RESULTS

Thirty-two participants (80%) completed the 3-month study, with retention highest in the EUC group (p < 0.05). Active treatment participants averaged 6.0±0.4 practice sessions/week, and EUC participants, 7.5±0.6 brain health activities/week. Treatment expectancies were similar across groups. EUC participants indicated high satisfaction with the program and study. Despite limited study power, the active treatment group showed significantly greater gains in subjective memory functioning (ps≤0.025) and nonsignificant improvements in cognitive performance (TMT-B), perceived stress, QOL, and mood (ps≤0.08) compared to the EUC group.

CONCLUSION

Findings of this pilot feasibility trial suggest incorporation of an EUC program is feasible, and that participation in a simple 12-week relaxation program may be helpful for adults with SCD versus engagement in an EUC program.

Managing depressive symptoms in people with mild cognitive impairment and mild dementia with a multicomponent psychotherapy intervention: a randomized controlled trial

OBJECTIVE

To evaluate the feasibility and effectiveness of the CORDIAL program, a psychosocial intervention consisting of cognitive behavioral therapy (CBT), cognitive rehabilitation, and reminiscence to manage depressive symptoms for people with mild cognitive impairment (MCI) or dementia.

DESIGN

We conducted a randomized controlled trial, based on a two-group (intervention and control), pre-/post-intervention design.

SETTING

Participants were recruited from five different old age psychiatry and memory clinics at outpatients' hospitals.

PARTICIPANTS

Hundred and ninety-eight people with MCI or early-stage dementia were included.

INTERVENTION

The intervention group (n = 100) received 11 individual weekly sessions of the CORDIAL program. This intervention includes elements from CBT, cognitive rehabilitation, and reminiscence therapy. The control group (n = 98) received treatment-as-usual.

MEASUREMENTS

We assessed Montgomery-Åsberg Depression Rating Scale (MADRS) (main outcome), Neuropsychiatric Inventory Questionnaire, and Quality of Life in Alzheimer's disease (secondary outcomes) over the course of 4 months and at a 10-month follow-up visit.

RESULTS

A linear mixed model demonstrated that the depressive symptoms assessed by MADRS were significantly more reduced in the intervention groups as compared to the control group (p < 0.001). The effect persisted for 6 months after the intervention. No significant differences between groups were found in neuropsychiatric symptoms or quality of life.

CONCLUSION

Our multicomponent intervention, which comprised 11 individual sessions of CBT, cognitive rehabilitation, and reminiscence therapy, reduced depressive symptoms in people with MCI and dementia.

Preventing dementia? Interventional approaches in mild cognitive impairment

Mild cognitive impairment (MCI) is defined as an intermediate state between normal cognitive aging and dementia. It describes a status of the subjective impression of cognitive decline and objectively detectible memory impairment beyond normal age-related changes. Activities of daily living are not affected. As the population ages, there is a growing need for early, proactive programs that can delay the consequences of dementia and improve the well-being of people with MCI and their caregivers. Various forms and approaches of intervention for older people with MCI have been suggested to delay cognitive decline. Pharmacological as well as non-pharmacological approaches (cognitive, physiological, nutritional supplementation, electric stimulation, psychosocial therapeutic) and multicomponent interventions have been proposed. Interventional approaches in MCI from 2009 to April 2019 concerning the cognitive performance are presented in this review.

The Impact of a Twelve-Month Comprehensive Program of Cognitive Training for Alzheimer Patients: A Pilot Study

Research has shown that non-pharmacological therapies can be useful in the treatment of Alzheimer’s disease (AD), significantly delaying cognitive decay. However, most AD interventions did not last beyond six months. Hence, little is known about the effect of these programs in the AD patients after six months of treatment. The purpose of this study was to evaluate the efficacy of the twelve-month Comprehensive Program of Cognitive Training (CPCT) for a sample of AD patients and to compare the results with the average annual rate of change. Thirty-nine AD patients participated in the study. The CPCT consists of a set of cognitive stimulations, intervention in activities of daily life (ADL), and motor training for 12 months. All patients were evaluated at baseline and in three-month intervals via the Mini Mental State Examination (MMSE), the Cambridge Cognitive Examination (CAMCOG), the Lawton Instrumental Activities of Daily Living Scale (IADL), and the Global Deterioration Scale (GDS). After CPCT implementation, there were no significant differences in the MMSE, IADL, and GDS evaluations between baseline and twelve months. Concerning the CAMCOG evaluation, there was no significant difference between the baseline and sixth-month assessments. Overall, the participants’ cognitive functioning did not decline when compared to the average annual rate of change. The CPCT extends the benefit of non-pharmacological interventions for AD patients to twelve months. Its implementation might provide the patients’ relatives with some guarantee concerning the delay of the disease. Future research may investigate the efficacy of the CPCT in comparison with a control group and over a more extended period.

A group memory rehabilitation programme for people with traumatic brain injuries: the ReMemBrIn RCT

BACKGROUND

People with traumatic brain injuries (TBIs) commonly report memory impairments. These are persistent, debilitating and reduce quality of life, but patients do not routinely receive memory rehabilitation after discharge from hospital.

OBJECTIVE

To assess the clinical effectiveness and cost-effectiveness of a group memory rehabilitation programme for people with TBI.

DESIGN

Multicentre, pragmatic, cluster randomised controlled trial. Qualitative and health economic evaluations were also undertaken.

SETTING

Community settings in nine sites in England.

PARTICIPANTS

Participants were aged 18-69 years, had undergone a TBI > 3 months prior to recruitment, reported memory problems, were able to travel to a site to attend group sessions, could communicate in English and gave informed consent.

RANDOMISATION AND BLINDING

Clusters of four to six participants were randomised to the memory rehabilitation arm or the usual-care arm on a 1 : 1 ratio. Randomisation was based on a computer-generated pseudo-random code using random permuted blocks of randomly varying size, stratified by study site. Participants and therapists were aware of the treatment allocation whereas outcome assessors were blinded.

INTERVENTIONS

In the memory rehabilitation arm 10 weekly sessions of a manualised memory rehabilitation programme were provided in addition to usual care. Participants were taught restitution strategies to retrain impaired memory functions and compensation strategies to enable them to cope with memory problems. The usual-care arm received usual care only.

MAIN OUTCOME MEASURES

Outcomes were assessed at 6 and 12 months after randomisation. Primary outcome: patient-completed Everyday Memory Questionnaire - patient version (EMQ-p) at 6 months' follow-up. Secondary outcomes: Rivermead Behavioural Memory Test - third edition (RBMT-3), General Health Questionnaire 30-item version, European Brain Injury Questionnaire, Everyday Memory Questionnaire - relative version and individual goal attainment. Costs (based on a UK NHS and Personal Social Services perspective) were collected using a service use questionnaire, with the EuroQol-5 Dimensions, five-level version, used to derive quality-adjusted life-years (QALYs). A Markov model was developed to explore cost-effectiveness at 5 and 10 years, with a 3.5% discount applied.

RESULTS

We randomised 328 participants (memory rehabilitation, n = 171; usual care, n = 157), with 129 in the memory rehabilitation arm and 122 in the usual-care arm included in the primary analysis. We found no clinically important difference on the EMQ-p between the two arms at 6 months' follow-up (adjusted difference in mean scores -2.1, 95% confidence interval -6.7 to 2.5; p = 0.37). For secondary outcomes, differences favouring the memory rehabilitation arm were observed at 6 months' follow-up for the RBMT-3 and goal attainment, but remained only for goal attainment at 12 months' follow-up. There were no differences between arms in mood or quality of life. The qualitative results suggested positive experiences of participating in the trial and of attending the groups. Participants reported that memory rehabilitation was not routinely accessible in usual care. The primary health economics outcome at 12 months found memory rehabilitation to be £26.89 cheaper than usual care but less effective, with an incremental QALY loss of 0.007. Differences in costs and effects were not statistically significant and non-parametric bootstrapping demonstrated considerable uncertainty in these findings. No safety concerns were raised and no deaths were reported.

LIMITATIONS

As a pragmatic trial, we had broad inclusion criteria and, therefore, there was considerable heterogeneity within the sample. The study was not powered to perform further subgroup analyses. Participants and therapists could not be blinded to treatment allocation.

CONCLUSIONS

The group memory rehabilitation delivered in this trial is very unlikely to lead to clinical benefits or to be a cost-effective treatment for people with TBI in the community. Future studies should examine the selection of participants who may benefit most from memory rehabilitation.

TRIAL REGISTRATION

Current Controlled Trials ISRCTN65792154.

FUNDING

This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 23, No. 16. See the NIHR Journals Library website for further project information.

Adaptive conjunctive cognitive training (ACCT) in virtual reality for chronic stroke patients: a randomized controlled pilot trial

BACKGROUND

Current evidence for the effectiveness of post-stroke cognitive rehabilitation is weak, possibly due to two reasons. First, patients typically express cognitive deficits in several domains. Therapies focusing on specific cognitive deficits might not address their interrelated neurological nature. Second, co-occurring psychological problems are often neglected or not diagnosed, although post-stroke depression is common and related to cognitive deficits. This pilot trial aims to test a rehabilitation program in virtual reality that trains various cognitive domains in conjunction, by adapting to the patient's disability and while investigating the influence of comorbidities.

METHODS

Thirty community-dwelling stroke patients at the chronic stage and suffering from cognitive impairment performed 30 min of daily training for 6 weeks. The experimental group followed, so called, adaptive conjunctive cognitive training (ACCT) using RGS, whereas the control group solved standard cognitive tasks at home for an equivalent amount of time. A comprehensive test battery covering executive function, spatial awareness, attention, and memory as well as independence, depression, and motor impairment was applied at baseline, at 6 weeks and 18-weeks follow-up.

RESULTS

At baseline, 75% of our sample had an impairment in more than one cognitive domain. The experimental group showed improvements in attention ([Formula: see text] (2) = 9.57, p < .01), spatial awareness ([Formula: see text] (2) = 11.23, p < .01) and generalized cognitive functioning ([Formula: see text] (2) = 15.5, p < .001). No significant change was seen in the executive function and memory domain. For the control group, no significant change over time was found. Further, they worsened in their depression level after treatment (T = 45, r = .72, p < .01) but returned to baseline at follow-up. The experimental group displayed a lower level of depression than the control group after treatment (Ws = 81.5, z = - 2.76, r = - .60, p < .01) and (Ws = 92, z = - 2.03, r = - .44, p < .05).

CONCLUSIONS

ACCT positively influences attention and spatial awareness, as well as depressive mood in chronic stroke patients.

TRIAL REGISTRATION

The trial was registered prospectively at ClinicalTrials.gov (NCT02816008) on June 21, 2016.

Differential effects of cognitive training modules in healthy aging and mild cognitive impairment: A comprehensive meta-analysis of randomized controlled trials

This meta-analysis was designed to compare the effectiveness of 2 cognitive training modules, single-component training, which targets 1 specific cognitive ability, versus multicomponent training, which trains multiple cognitive abilities, on both trained abilities (near transfer) and untrained abilities (far transfer) in older adults. The meta-analysis also assessed whether individual differences in mental status interacted with the extent of transfer. Eligible randomized controlled trials (215 training studies) examined the immediate effects of cognitive training in either healthy aging (HA) or mild cognitive impairment (MCI). Results yielded an overall net-gain effect size (g) for the cognitive training of 0.28 (p < .001). These effects were similar across mental status and training modules, and were significant for both near (g = 0.37) and far (g = 0.22) transfer. Although all training modules yielded significant near transfer, only a few yielded significant far transfer. Single-component training of executive functions was most effective on near and far transfer, with processing speed training improving everyday functioning. All modules of multicomponent training (specific and nonspecific) yielded significant near and far transfer, including everyday functioning. Training effects on cognition were moderated by educational attainment and number of cognitive outcomes, but only in HA. These findings suggest that, in older adults, all modules of multicomponent training are more effective in engendering near and far transfer, including everyday functioning, when compared with single-component training modules. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

Effect of Self-Efficacy on Quality of Life in People With Mild Cognitive Impairment and Mild Dementia: The Mediating Roles of Depression and Anxiety

OBJECTIVES

To examine the mediating effects of depression and anxiety in the relationship between self-efficacy and quality of life among people with mild cognitive impairment (MCI) or mild dementia.

METHOD

A total of 196 patients diagnosed with MCI or dementia due to Alzheimer disease completed structured measures of self-efficacy, quality of life, and depressive and anxiety symptoms. We examined direct and mediated effects by fitting structural equation models to data.

RESULTS

Our analyses supported that the effects of self-efficacy on quality of life may be partially mediated by depression and anxiety. Both anxiety and depression had significant mediating effects, with depression showing a stronger effect.

CONCLUSION

These results suggest that increased self-efficacy may have a positive effect on quality of life in people with MCI or dementia-partly by reducing depression and anxiety. These findings may have important practical implications for tailoring therapeutic interventions.

Role of physical activity in ameliorating neuropsychiatric symptoms in Alzheimer disease: A narrative review

OBJECTIVE

Neuropsychiatric symptoms (NPs) affect almost all patients with Alzheimer disease (AD). Because of the complications associated with the pharmacological treatment, nonpharmacological treatment (such as physical activity) can be considered as an additional complementary treatment option for NPs. The aim of this review is to evaluate the impact of physical activity on NPs in patients with AD.

METHODS

We searched Pubmed and Google Scholar for potential eligible articles until March 1, 2018.

RESULTS

Although there are contradictory results showing the impact of physical exercise on NPs, most of them reported that it had a significant effect on depression and sleep disturbances in patients with AD. The beneficial effects could be explained through several mechanisms, including modulated production of neurotransmitters; increasing neurotrophins, such as brain-derived neurotrophic factor; reduction of oxidative stress and inflammation; elevation of cerebral blood flow; hypothalamic pituitary adrenal axis regulation; and support of neurogenesis and synaptogenesis. Physical activity can also improve cardiovascular risk factors, which may exaggerate NPs. There is limited evidence for other NPs such as agitation, disinhibition, apathy, hallucinations, and anxiety.

CONCLUSION

Physical activity may ameliorate depression and sleep disturbances in patients with AD. Therefore, physical activity can be a "potential" add-on treatment to drugs to reduce or prevent these symptoms onset and recurrence in patients with AD. However, further studies are needed to focus on relationship between physical activity and other NPs.

The optimal treatment for improving cognitive function in elder people with mild cognitive impairment incorporating Bayesian network meta-analysis and systematic review

It's widely acknowledged that, as a neurodegenerative aging disease representing an intermediate stage between cognitive intactness and Alzheimer's disease (AD), Mild cognitive impairment (MCI) poses an excessive burden on patients' well-being, family members, health-care providers as well as the whole society. This study focuses on three cognitive interventions proposed by Clare and Woods, which are, Cognitive stimulation (CS), Cognitive training (CT) and Cognitive rehabilitation (CR). Our Network meta-analysis (NMA) aims to compar them with one another to determine the optimal cognitive intervention for elderly adults with MCI in improving their cognitive function. We applied extensive strategies to preliminary literature retrieval to identify relevant randomized controlled trials (RCTs) which scrupulously compared any two of the three cognitive interventions with one another or any one of the three with a control group as the placebo or non-active group in treating elder patients with MCI in accordance with Petersen's criteria. Our NMA of cognitive interventions for patients diagnosed with MCI appraised the relative effectiveness of cognitive interventions across trials simultaneously. Our study attempts to summarize available data to suggest that CS (Mean difference [MD] = 0.95, 95% confidence interval [CI]:0.27, 1.70) and CT (MD = 0.70, [CI]:0.11,1.30) were significantly beneficial to MCI patients for improving their cognition status while CR (MD = 0.59, [CI]:-0.30,1.50) scored lowest. Our study suggested CS was most likely to be the best intervention for improving the cognitive function of MCI patients.

Beneficial effect of 6 weeks lasting handling of adult rats on spatial memory in experimental model of neurodegeneration

Handling is a form of experience which can result in physiological changes depending on the period of postnatal age when performed. There is a lot of evidence about the positive effect of neonatal handling, but a lack dealing with handling of adult rats. Behavioral changes and memory deficits are present in dementia-like disorders. In the present work, we tested whether 6 weeks lasting handling of young adult rats could revert memory impairment induced by trimethyltin (TMT) (7.5 mg/kg, intraperitoneally). Testing rats in Morris water maze revealed significant effect of TMT as well significant effect of handling. We observed improvement of spatial memory also between healthy, non-degenerated rats as well as degenerated rats, represented by shorter latency onto the platform. In our paper, we report beneficial effect of handling on spatial memory that is in compliance with published works about beneficial effect of cognitive therapy and training in patients with early stage of Alzheimer΄s disease and dementia.

Evaluating the impact of a home-based rehabilitation service on older people and their caregivers: a matched-control quasi-experimental study

Introduction

Previous studies evaluating home-based rehabilitation service (HBRS) merely focused on the period immediately after the patients’ discharge from hospitals. The present study focuses on HBRS that covers clients who have not been recently hospitalized. HBRS aims to meet older clients’ rehabilitation needs and support their caregivers in the community. This study intended to evaluate the impact of HBRS on the older clients’ health outcomes and hospital services utilization, and caregivers’ strain in providing care for clients.

Methods

This study used a matched-control quasi-experimental design with a 3-month follow-up to evaluate HBRS. The health outcome measures used for the older clients included Elderly Mobility Scale, Timed Up and Go test, Modified Barthel Index, Lawton’s Instrumental Activities of Daily Living Scale, Mini-Mental State Examination, and World Health Organization Quality of Life Scale, Short Form, Hong Kong version (WHOQOL-BREF [HK]). Meanwhile, the Caregiver Strain Index was used to measure the caregivers’ caregiving strain. Data on clients’ hospital services utilization 3 and 6 months before and after the study were also collected and evaluated.

Results

The final sample consisted of 122 pairs of older clients and caregivers who live in a community in Hong Kong. In the follow-up after 3 months, the intervention group showed immensely substantial improvements across all the health outcome measures compared with the control group. The intervention group also demonstrated substantial reduction in the clients’ hospital services utilization compared with the control group. However, no significant differences in the clients’ hospital services utilization exist between the two groups in the follow-up after 6 months.

Conclusion

HBRS of this study is an effective intervention service to improve health outcomes and reduce hospital services utilization among older people living in the community. Moreover, HBRS of this study was effective in reducing the caregivers’ caregiving strain.

Training Rehabilitation as an Effective Treatment for Patients With Vascular Cognitive Impairment With No Dementia

PURPOSE

The aim of this study was to investigate the possible therapeutic effect of cognitive training on the cognitive function of patients with vascular cognitive impairment with no dementia (VCIND).

DESIGN

A randomized controlled trial.

METHOD

Seventy-three cases of VCIND patients were used as subjects, of which 36 patients were subjected to routine care with systemic cognitive training and classified as the intervention group, whereas the other 37 patients were subjected to a routine care only and classified as the control group. Multidimensional neuropsychological assessments were performed 3 months before and after the intervention.

FINDINGS

The patients' performance on functional tests was significantly improved after intervention (p < .05) except from Stroop Color-Word Test (p ≥ .05).

CONCLUSIONS

After systemic cognitive training, VCIND patients showed a significant improvement in visuospatial function, memory function, language function, and attention function, whereas their execution function was partially improved.

CLINICAL RELEVANCE

Despite the promising results, there is still a need to improve the support for patients affected by VCIND requiring rehabilitation.

Exercise Intervention Associated with Cognitive Improvement in Alzheimer's Disease

Alzheimer's disease (AD) is a progressive neurodegenerative disease with the syndrome of cognitive and functional decline. Pharmacotherapy has always been in a dominant position for the treatment of AD. However, in most cases, drug therapy is accompanied with clinical delays when older adults have suffered from cognitive decline in episodic memory, working memory, and executive function. On the other hand, accumulating evidence suggests that exercise intervention may ameliorate the progression of cognitive impairment in aging ones while the standard strategy is lacking based on different levels of cognitive decline especially in mild cognitive impairment (MCI) and AD. MCI is the preclinical stage of AD in which neurodegeneration may be reversed via neuroplasticity. Therefore, taking exercise intervention in the early stage of MCI and healthy aging at the risk of AD could slow down the process of cognitive impairment and provide a promising cost-effective nonpharmacological therapy to dementia.

A step-by-step translation of evidence into a psychosocial intervention for everyday activities in dementia: a focus group study

OBJECTIVE

In order to increase the efficacy of psychosocial interventions in dementia, a step-by-step process translating evidence and public engagement should be adhered to. This paper describes such a process by involving a two-stage focus group with people with dementia (PwD), informal carers, and staff.

METHODS

Based on previous evidence, general aspects of effective interventions were drawn out. These were tested in the first stage of focus groups, one with informal carers and PwD and one with staff. Findings from this stage helped shape the intervention further specifying its content. In the second stage, participants were consulted about the detailed components.

FINDINGS

The extant evidence base and focus groups helped to identify six practical and situation-specific elements worthy of consideration in planning such an intervention, including underlying theory and personal motivations for participation. Carers, PwD, and staff highlighted the importance of rapport between practitioners and PwD prior to commencing the intervention. It was also considered important that the intervention would be personalised to each individual.

CONCLUSIONS

This paper shows how valuable public involvement can be to intervention development, and outlines a process of public involvement for future intervention development. The next step would be to formally test the intervention.

MEMO+: Efficacy, Durability and Effect of Cognitive Training and Psychosocial Intervention in Individuals with Mild Cognitive Impairment

BACKGROUND/OBJECTIVES

There is no consensus on the efficacy of cognitive training in persons with mild cognitive impairment (MCI) because of the paucity of well-designed randomized controlled trials. The objective was to assess the effect of memory training on the cognitive functioning of persons with MCI and its durability and to evaluate whether this effect generalizes to daily life and whether positive effects could be obtained from psychosocial intervention.

DESIGN

Single-blind randomized controlled trial.

SETTING

Research centers of the Institut Universitaire de Gériatrie de Montréal and Institut Universitaire en Santé Mentale de Québec.

PARTICIPANTS

Older adults meeting criteria for amnestic MCI (N = 145).

INTERVENTION

Participants were randomized to cognitive training, a psychosocial intervention, or a no-contact control condition. Interventions were provided in small groups in eight 2-hour sessions.

MEASUREMENT

Outcome measures were immediate and delayed composite performance memory scores, psychological health (depression, anxiety, well-being), and generalization effects of the intervention (strategy use in everyday life, difficulties in complex activities of daily living, memory complaints). Testing was administered before training and immediately, 3 months, and 6 months after training.

RESULTS

Participants in the cognitive training condition improved on the delayed composite memory score and on strategy use in everyday life. Improvement was maintained at the 3- and 6-month follow-up assessments. Participants in the psychosocial and no-contact conditions did not show any significant improvement.

CONCLUSION

Cognitive training improves the memory of persons with amnestic MCI. The effect persists over a 6-month period, and learned strategies are used in everyday life. Cognitive training is a valid way to promote cognition in MCI.

The effects of holistic health group interventions on improving the cognitive ability of persons with mild cognitive impairment: a randomized controlled trial

PURPOSE

Persons with mild cognitive impairment (PwMCI) are at a higher risk of developing dementia than those without cognitive impairment. This research study aims to evaluate the effectiveness of a holistic health group intervention, which is based on the holistic brain health approach as well as an Eastern approach to health care, on improving the cognitive ability of Chinese PwMCI.

RESEARCH METHODS

In a randomized controlled trial (RCT), 38 Chinese PwMCI were randomly assigned to either a 10-session holistic health intervention group or the control group. The holistic health treatment group attempted to promote the acceptance of their illness, enhance memory and coping skills, develop a positive lifestyle, maintain positive emotions, and facilitate emotional support among participants. The 10-session holistic health group intervention was structured, with each session conducted once per week and ~90 minutes in length. Control group patients and their family caregivers received standardized basic educational materials that provided basic information on cognitive decline for them to read at home. The Montreal Cognitive Assessment (MoCA) test was used to assess the cognitive ability of PwMCI in the pre- and posttreatment periods by a research assistant who was blind to the group assignment of the participants.

RESULTS

The paired-samples t-test indicated that the treatment group (n=18) showed significant improvement in the MoCA score, whereas the control group (n=20) did not. Moreover, 2×2 (group × time) repeated-measures analysis of covariance (ANCOVA) demonstrated that the holistic health group treatment was significantly more effective than the control intervention in improving the MoCA score, with a moderate effect size, and improving the delayed recall (ie, short-term memory), with a strong effect size, after controlling for age, sex, education, and marital status.

CONCLUSION

This present RCT provides evidence to support the feasibility and effectiveness of the holistic health group intervention in improving the cognitive and short-term memory abilities of PwMCI.

Feasibility and first results of a group program to increase the frequency of cognitively stimulating leisure activities in people with mild cognitive impairment (AKTIVA-MCI)

AKTIVA-MCI is a program for patients with mild cognitive impairment (MCI) that aims to enhance participation in cognitively stimulating leisure activities. Participation in cognitively stimulating activities seems to be a potential strategy for people with MCI delaying cognitive decline for a while. In total, 35 MCI patients were enrolled in the pilot study of whom 29 completed the whole program (16 female, 71.1±7.5 years; Mini Mental Status Examination score: 28±2.2). Daily activity protocols were used to measure the frequency of participation in cognitively stimulating activities during the program (12 sessions). Additional standardized psychometric tests and questionnaires were used to assess cognition, mood, and subjective memory decline. Analyses of the daily activity protocols showed that during the intervention participants increased the frequency of several cognitively stimulating leisure activities. Comparison of pre-post data indicates no changes in cognitive status, mood, and subjective memory decline. These findings indicate that the program is suitable for patients with MCI.

The role of cognitive activity in cognition protection: from Bedside to Bench

BACKGROUND

Cognitive decline poses a great concern to elderly people and their families. In addition to pharmacological therapies, several varieties of nonpharmacological intervention have been developed. Most training trials proved that a well-organized task is clinically effective in cognition improvement.

MAIN BODY

We will first review clinical trials of cognitive training for healthy elders, MCI and AD patients, respectively. Besides, potential neuroprotective and compensatory mechanisms in animal models of AD are discussed. Despite controversy, cognitive training has promising effect on cognitive ability. In animal model of AD, environmental enrichment showed beneficial effect for cognitive ability, as well as neuronal plasticity. Neurotrophin, neurotransmitter and neuromodulator signaling pathway were also involved in the process. Well-designed cognitive activity could benefit cognitive function, and thus life quality of patients and their families.

CONCLUSION

The positive effects of cognitive activity is closely related with neural plasticity, neurotrophin, neurotransmitter and neuromodulator signaling pathway changes.

Collaborative Management of Neurocognitive Disorders in Primary Care: Explorations of an Attempt at Culture Change

INTRODUCTION

Minor neurocognitive disorder (MiND; previously mild cognitive impairment) is a transitional zone between normal cognitive function and early stages of major neurocognitive disorder (previously called dementia). Of people with MiND, 5% to 10% progress to major neurocognitive disorder. Simple interventions such as memory activities, balance exercises, and anti-inflammatory diets have been shown to improve cognitive ability. Also, education and support in group settings have proved beneficial for patients with MiND.

DESIGN

Survey evaluation of outcomes of geriatric consultation and prospective educational study.

MAIN OUTCOME MEASURES

We collaborated with an academic training program to introduce into primary care the ideas of educational activities and participation in group medical care for people with MiND. Educational programs were developed and presented to family medicine residents and practicing physicians, and their knowledge was assessed before and after education.

RESULTS

Two group programs were implemented: one at our hospital and one at a local skilled nursing facility. These were initially envisioned as time-limited, but participants insisted on their continuance. Thirty-two different patients attended the groups for at least six sessions. Participants enthusiastically reported positive change on qualitative interviews and showed improvement in cognition, balance, and self-esteem. Family medicine residents and practicing physicians both shifted toward lifestyle medicine and significantly changed their views on the efficacy of treatments. Despite these activities, community physicians making referrals for geriatric consultations did not change their discussions with patients and families about exercise, diet, cognitive enhancement, and socialization for MiND.

CONCLUSION

Group visits that emphasized support for increased exercise, improved diet, more movement and balance, and cognitive enhancement appear to please and benefit patients with MiND. Physicians are more open to these approaches with training after initial skepticism. A struggle exists to convince the profession that lifestyle change may be beneficial in MiND.

The newly revised interview for deteriorations in daily living activities in dementia (R-IDDD2): distinguishing initiative from performance at assessment

BACKGROUND

Minimal evidence exists on the detailed deficits in complex instrumental activities of daily living (IADLs) in mild dementia. The aim of this study was twofold, to validate a revised questionnaire focusing measuring the initiative and performance of IADLs in mild dementia and to explore the relationship between individual IADLs and patient and carer well-being.

METHODS

A total of 183 carers of people with mild dementia completed a further modified Revised Interview for Deterioration in Daily Living Activities 2 (R-IDDD2), which comprised new activities such as computer use, as well as sub-activities on the performance scale. Carers also completed questionnaires assessing patient quality of life (QoL-AD), carer quality of life (AC-QoL), and burden (GHQ-12).

RESULTS

Persons with dementia were significantly poorer initiating than performing cleaning, doing repair work, and preparing a hot or cold meal, whereas being poorer at performing dressing and following current affairs. Using the computer, preparing a hot meal, finance, and medication management were most impaired, whereas more basic activities of dressing, washing oneself, brushing hair or teeth, and preparing a hot drink were most preserved. Poor initiative and performance on nearly all activities were significantly related to reduced carer and patient well-being.

CONCLUSIONS

The R-IDDD2 offers a platform to comprehensively assess everyday functioning. Deteriorations in initiative and performance need to be targeted separately in interventions, as the former requires effective triggering and the latter structured training and support. Most activities were significantly associated with well-being, particularly patient quality of life so that improving any activity should improve well-being.

Cognitive Training Program to Improve Working Memory in Older Adults with MCI

OBJECTIVES

Deficits in working memory (WM) are associated with age-related decline. We report findings from a clinical trial that examined the effectiveness of Cogmed, a computerized program that trains WM. We compare this program to a Sham condition in older adults with Mild Cognitive Impairment (MCI).

METHODS

Older adults (N = 68) living in the community were assessed. Participants reported memory impairment and met criteria for MCI, either by poor delayed memory or poor performance in other cognitive areas. The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS, Delayed Memory Index) and the Clinical Dementia Rating scale (CDR) were utilized. All presented with normal Mini Mental State Exams (MMSE) and activities of daily living (ADLs). Participants were randomized to Cogmed or a Sham computer program. Twenty-five sessions were completed over five to seven weeks. Pre, post, and follow-up measures included a battery of cognitive measures (three WM tests), a subjective memory scale, and a functional measure.

RESULTS

Both intervention groups improved over time. Cogmed significantly outperformed Sham on Span Board and exceeded in subjective memory reports at follow-up as assessed by the Cognitive Failures Questionnaire (CFQ). The Cogmed group demonstrated better performance on the Functional Activities Questionnaire (FAQ), a measure of adjustment and far transfer, at follow-up. Both groups, especially Cogmed, enjoyed the intervention.

CONCLUSIONS

Results suggest that WM was enhanced in both groups of older adults with MCI. Cogmed was better on one core WM measure and had higher ratings of satisfaction. The Sham condition declined on adjustment.

Everyday Impact of Cognitive Interventions in Mild Cognitive Impairment: a Systematic Review and Meta-Analysis

Cognitive interventions in Mild Cognitive Impairment (MCI) seek to ameliorate cognitive symptoms in the condition. Cognitive interventions may or may not generalize beyond cognitive outcomes to everyday life. This systematic review and meta-analysis sought to assess the effect of cognitive interventions compared to a control group in MCI on generalizability outcome measures [activities of daily living (ADLs), mood, quality of life (QOL), and metacognition] rather than cognitive outcomes alone. PRISMA guidelines were followed. MEDLINE and PsychInfo were utilized as data sources to locate references related to cognitive interventions in individuals with MCI. The cognitive intervention study was required to have a control or alternative treatment comparison group to be included. Thirty articles met criteria, including six computerized cognitive interventions, 14 therapist-based interventions, and 10 multimodal (i.e., cognitive intervention plus an additional intervention) studies. Small, but significant overall median effects were seen for ADLs (d = 0.23), mood (d = 0.16), and metacognitive outcomes (d = 0.30), but not for QOL (d = 0.10). Computerized studies appeared to benefit mood (depression, anxiety, and apathy) compared to controls, while therapist-based interventions and multimodal interventions had more impact on ADLs and metacognitive outcomes than control conditions. The results are encouraging that cognitive interventions in MCI may impact everyday life, but considerably more research is needed. The current review and meta-analysis is limited by our use of only PsychInfo and MEDLINE databases, our inability to read full text non-English articles, and our reliance on only published data to complete effect sizes.