Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences (2021)

Chapter: Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions

Previous Chapter: Appendix B: The Paid Health Care Workforce
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Cotelli et al., 2019Systematic review2005–2016Persons living with mild cognitive impairment, Alzheimer’s disease, or frontotemporal dementia5Randomized controlled trial
Tay et al., 2019Systematic review1998–2017Persons living with dementia11
  • Quasi-experimental
  • Randomized controlled trial
Lim et al., 2019Systematic review2009–2017Persons in the early stages of dementia or mild cognitive impairment9
  • Nonrandomized controlled trial
  • Nonrandomized prospective study
  • Randomized controlled trial
Bahar-Fuchs et al., 2019Systematic review and meta-analysis1988–2018Persons living with mild to moderate dementia33 (32 included in meta-analysis)Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Cognitive telerehabilitationCognitive ability
  • Overall, studies were of low quality.
  • Telerehabilitation may be comparable to face-to-face cognitive rehabilitation.
Cognitive-behavioral therapy
  • Anxiety
  • Depression
  • Preliminary evidence indicates cognitive-behavioral therapy is effective at reducing anxiety and depressive symptoms among persons with dementia.
  • More rigorous trials are need.
Tai chi
  • Short-term cognitive function
  • Global cognitive functions
  • Working memory and executive function
  • Verbal learning and memory
  • Self-perception of memory
  • Attention and concentration
  • Semantic memory
  • Visuospatial skills
Tai chi has the potential to improve short-term cognitive function in the early stages of dementia.
Cognitive training
  • Global cognition
  • Clinical disease severity
  • Delayed memory ability
  • Capacity to perform activities of daily living
  • Mood and well-being of participant
  • Mood and well-being of informant/caregiver
  • Participant/treatment burden (retention rates)
  • Moderate-quality evidence indicates cognitive training relative to control, but not alternative treatment, is associated with small to moderate effects on global cognition and verbal semantic fluency.
  • Medium- to long-term follow-up evidence of cognitive training is low.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Yen and Lin, 2018Systematic review2004–2010Older adults living with and without dementia16
  • Nonexperimental studies
  • Qualitative studies
  • Randomized controlled trial
van der Steen et al., 2018Systematic review and meta-analysis1993–2016Persons living with dementia22 (21 included in meta-analysis)Randomized controlled trial
van den Berg et al., 2018Systematic review1991–2017Persons living with dementia17
  • Case reports
  • Chart review
  • Prospective cohort
Spencer et al., 2018Systematic review2009Persons living with dementia1Cluster randomized controlled study
Russell-Williams et al., 2018Review2010–2016Persons living with dementia, mild cognitive impairment, or subjective cognitive decline10
  • Randomized controlled trial
  • Quasi-experimental
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Reminiscence therapy
  • Daily functioning
  • Cognition
  • Depression
  • Mood status
  • Self-esteem
  • Life satisfaction
  • Findings were not separated for populations with and without dementia.
  • Reminiscence therapy is associated with improved quality of life and depressive symptoms among older adults.
Music therapy
  • Emotional well-being (quality of life and positive affect)
  • Mood and affect
  • Behaviors
  • Cognition
  • Low-quality evidence indicates music-based interventions may improve emotional well-being and quality of life and reduce anxiety.
  • Moderate-quality evidence indicates music-based interventions reduce depressive symptoms and overall behaviors, but there is no effect on agitation/aggression.
  • Low-quality evidence indicates music-based interventions have no effect on cognition.
  • Conclusions could not be drawn regarding the effect of music-based interventions on social behavior or outcomes at long-term follow-up.
Electroconvulsive therapyAgitation and aggressionClinical improvements were observed in most of the studies, but the lack of randomized controlled trials limits inference.
De-escalation techniques for managing aggression
  • Aggression
  • Behaviors
A single study with high risk of bias found no difference in change in overall behavior.
Meditation:
  • Mindfulness
  • Kirtan kriya meditation
  • Mindfulness-based Alzheimer’s stimulation
  • Stress
  • Cognition
  • Quality of life
  • Medication may result in improvements in stress, cognition, and quality of life.
  • More rigorous studies are needed.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Peluso et al., 2018Review1995–2016Persons living with dementia and/or psychiatric disorders16
  • Nonrandomized clinical trial
  • Randomized controlled trial
Oltra-Cucarella et al., 2018Systematic review and meta-analysis1993–2016Persons living with Alzheimer’s disease or mixed dementias33
  • Nonrandomized clinical trial
  • Randomized controlled trial
Mohler et al., 2018Systematic review and meta-analysis2000–2015Persons living with dementia8 (7 included in meta-analysis)
  • Controlled clinical trial
  • Randomized controlled trial
Lorusso and Bosch, 2018Systematic review2001–2014Persons living with dementia12
  • Quasi-experimental
  • Randomized controlled trial
Liang et al., 2018Systematic review and network meta-analysis2004–2016Persons living with Alzheimer’s disease or mild cognitive impairment17Randomized controlled trial
Hu et al., 2018Systematic review and meta-analysis1999–2016Persons living with cognitive impairment, including dementia and mild cognitive impairment10
  • Quasi-experimental
  • Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Animal-assisted therapy
  • Cognition
  • Behavior
  • Depression
  • Physical function
  • Quality of life
  • Social function
Preliminary evidence from studies of low quality indicates that in persons with dementia, animal-assisted therapy may decrease problem behaviors and improve quality of life and social skills.
Cognition-focused interventions:
  • Cognitive rehabilitation
  • Cognitive training
  • Cognitive stimulation
  • Cognition
  • Attention
  • Memory
  • Naming
  • Executive functioning
  • Physical functioning
Cognition-focused interventions have limited effects on cognition or function compared with non–cognition focused interventions.
Tailored activities
  • Behavior
  • Quality of life
  • Affect
  • Mood
  • Cost
  • For persons with dementia living in long-term care facilities, low-quality evidence indicates tailored activities may marginally improve behaviors.
  • Evidence was inconclusive for quality of life, affect, and mood-related outcomes.
Multisensory environments
  • Behavior
  • Mood
  • Multisensory interventions may reduce behaviors and have a positive impact on mood.
  • Long-term effects are mixed, and rigorous studies are needed.
  • Physical exercise
  • Music therapy
  • Computerized cognitive training
  • Nutrition therapy
  • Cognitive functioning
  • Behavior
  • For persons with mild to moderate dementia, physical exercise may improve cognition.
  • For persons with mild to moderate dementia, computerized cognitive training may improve behavior.
Animal-assisted intervention
  • Behaviors
  • Daily living activities
  • Cognition
  • Quality of life
  • For persons with cognitive impairment, animal-assisted interventions may reduce problem behaviors.
  • For persons with cognitive impairment, animal-assisted interventions may have no effect on daily activities, cognition, or quality of life.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Herke et al., 2018Systematic review1986–2015Persons living with dementia9Randomized controlled trial
Fusar-Poli et al., 2018Systematic review and meta-analysis2009–2014Persons living with dementia6Randomized controlled trial
Frederiksen et al., 2018Systematic review2006–2017Persons living with no cognitive impairment (6 studies) Individuals with subjective memory complaints, mild cognitive impairment, or Alzheimer’s disease (2 studies)8Randomized controlled trial
Duan et al., 2018Systematic review and network meta-analysis2006–2016Persons living with dementia10Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Environmental or behavior modifications for food and fluid intake
  • Food and fluid intake
  • Nutritional status
  • Secondary outcomes: mealtime behavior, global and specific cognitive function, daily function, quality of life
Conclusions could not be made due to heterogeneity in interventions and poor study design.
Music therapy
  • Cognition
  • Attention
  • Executive function
  • Learning and memory
  • Language
  • Motor skills
  • Overall music therapy had no effect on all outcomes.
  • A secondary analysis found that active music therapy had a positive effect on global cognition.
Physical exercise
  • Hippocampal volume
  • Biomarkers: cerebrospinal fluid, amyloid-B, tau
For persons with dementia, two small studies found physical exercise had no effect on biomarker outcomes.
  • Home-based exercise
  • Group exercise
  • Walking program
  • Reminiscence therapy
  • Art therapy
  • Psychosocial interventions + acetylcholinesterase inhibitor
  • Cognitive stimulation + acetylcholinesterase inhibitor
  • Cognition
  • Compliance
  • Psychosocial interventions including walking, home/group exercise, reminiscence therapy, and art therapy are more effective than usual care on measures of cognition.
  • Nonpharmacologic intervention + acetylcholinesterase inhibitor is more effective than acetylcholinesterase inhibitor alone on measures of cognition.
  • Compliance was greater for persons in walking and home-based exercise interventions compared with those in group exercise and art therapy interventions.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs

Deshmukh et al., 2018Systematic review2006–2011Persons living with dementia2Randomized controlled trial
Theleritis et al., 2018Systematic review1998–2016Persons living with dementia43
  • Quasi-experimental study
  • Randomized controlled trial
Wu et al., 2017Systematic review and meta-analysis2005–2015Persons living with dementia11
  • Quasi-experimental studies
  • Randomized controlled trial
Wood et al., 2017Systematic mapping review2001–2015Persons living with dementia10
  • Quasi-experimental studies
  • Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
  • Mindfulness-based Alzheimer’s stimulation + acetylcholinesterase inhibitor
  • Progressive muscle relaxation + acetylcholinesterase inhibitor
  • Cognitive training + acetylcholinesterase inhibitor
Art therapy
  • Cognition
  • Depression
  • Quality of life
Evidence is insufficient to draw conclusions regarding the effect of art therapy on outcomes.
Nonpharmacologic:
  • Staff training
  • Multisensory
  • Walking
  • Emotion-oriented care
  • Individualized activity
  • Reminiscence therapy
  • Music
  • Art therapy
  • Cognitive therapy
Apathy
  • Most studies do not include apathy as a primary outcome measure.
  • Nonpharmacologic treatment for apathy is safe and may be effective, but overall, more rigorous studies are needed.
  • Massage
  • Touch therapy
BehaviorsLow-quality evidence is insufficient to draw conclusions.
Animal-assisted therapies incorporating dogsQuality of life
  • For persons with dementia residing in long-term care facilities, animal-assisted therapy may improve quality of life.
  • More rigorous studies are needed.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Theleritis et al., 2017Systematic review and meta-analysis2004–2016Persons living with Alzheimer’s disease22
  • Quasi-experimental studies
  • Randomized controlled trial
Streater et al., 2017Systematic and scoping review1982–2013Persons living with dementia7
  • Quasi-experimental studies
  • Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Nonpharmacologic:
  • Cognitive training (group sessions)
  • Reminiscence therapy (group sessions)
  • Individualized cognitive rehabilitation program (individual sessions)
  • Biography-orientated mobilization
  • Music and art therapy
  • Nursing home staff education program
  • Multisensory
  • Cognitive stimulation, physical activity, and socialization
  • Activities
Apathy
  • Most studies do not include apathy as a primary outcome measure.
  • Heterogeneity of studies and poor study designs limit inferences, but several nonpharmacologic interventions are effective in reducing apathy.
Crisis management:
  • Psychiatry service
  • Outreach support
  • Crisis resolution home treatment team
  • Mental and behavioral health
  • Individualized care plan
  • Hospitalizations
  • Institutionalization
  • Quality of life
  • Cognition
  • Activities of daily living
  • Mortality
  • Use of medication
  • Patient/caregiver satisfaction
  • The overall effectiveness of crisis management on key outcomes is inconclusive.
  • More rigorous studies are needed.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Smallfield and Heckenlaible, 2017Systematic review2006–2014Persons living with Alzheimer’s disease and related neurocognitive disorders52
  • Quasi-experimental studies
  • Randomized controlled trial
Lewis et al., 2017Systematic review2008–2015Persons living with cognitive impairment7 (6 included in meta-analysis)Randomized controlled trial
Karssemeijer et al., 2017Systematic review and meta-analysis2008–2017Persons living with mild cognitive impairment or dementia10Randomized controlled trial
Karkou and Meekums, 2017Systematic reviewN/APersons living with dementia0Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Interventions to maintain self-care and leisure:
  • Occupation-based
  • Sleep
  • Cognitive
  • Physical exercise
  • Multicomponent interventions
  • Physical functioning
  • Sleep
  • Leisure
  • Social engagement
  • For persons with dementia, evidence is strong for the effect of occupation-based interventions and cognitive interventions on maintaining functional performance.
  • Evidence is strong for physical exercise for improving sleep and physical function.
Supervised home- or community-based exercise programs longer than 3 months
  • Function (basic and instrumental activities of daily living)
  • Falls
  • Hospital readmission
  • For older adults with cognitive impairment, long-term exercise programs improved functional independence compared with usual care.
  • Two randomized trials suggest long-term exercise programs may reduce falls.
Combined cognitive-physical interventions
  • Cognitive function
  • Activities of daily living
  • Mood
  • For persons with dementia, there is a small to medium positive effect of combined cognitive–physical interventions on global cognitive function compared with usual care.
  • There is a moderate to large positive effect of combined cognitive–physical interventions on activities of daily living.
  • There is a small to medium positive effect of combined cognitive–physical interventions on mood.
Dance movement therapy
  • Behavior
  • Social interaction
No studies met the inclusion criteria.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Ijaopo, 2017Systematic review2008–2017Persons living with dementia10
  • Randomized controlled trial (7)
  • Reviews (3)
Garrido et al., 2017Critical synthesis2006–2016Persons living with dementia28
  • Nonrandomized clinical trial
  • Randomized controlled trial
Dimitriou and Tsolaki, 2017Systematic review1998–2013Persons living with dementia11Randomized controlled trial
Anderson et al., 2017Systematic review2008–2015Persons living with dementia7Randomized controlled trial
Abraha et al., 2017Systematic review1997–2007Persons living with dementia3
  • Quasi-randomized controlled trial
  • Randomized controlled trial
Charry-Sanchez et al., 2018Systematic review2000–2017Persons living with dementia, depression, and other conditions23 (8 on dementia)
  • Quasi-experimental
  • Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
  • Therapeutic touch
  • Tailored activity program
  • Lavender oil
  • Music therapy
  • Electroconvulsive therapy
  • Acupressure
  • Reviews of various nonpharmacologic strategies
  • Agitation
  • Behavior
Evidence is limited on the effect of nonpharmacologic interventions on reducing severe agitation.
Prerecorded music alone or in combination with other musical activitiesBehaviorsFor persons with dementia, prerecorded music can be effective in reducing behavioral symptoms, including agitation.
Sensory stimulation interventions:
  • Massage
  • Acupuncture
  • Bright light
Sleep disturbancesBright light therapy may help reduce sleeping problems compared with usual care.
Complementary and alternative medicine:
  • Reflexology
  • Aromatherapy
  • Therapeutic touch
  • Foot massage
  • Aromatherapy and hand massage
  • Aromatherapy with donepezil
  • Behavior
  • Pain
Complementary and alternative medicine may reduce behavioral symptoms compared with control conditions.
Simulated presence therapy (audio or video recording)
  • Behaviors
  • Quality of life
Low quality evidence indicates the effects of simulated presence on behavioral outcomes is uncertain.
Animal-assisted therapies
  • Cognition
  • Behavior
  • Mood
  • Physical function
For persons living with dementia, animal–assisted therapy shows promise in short-term management of behaviors, but study designs limit inferences.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Chiu et al., 2018Systematic review and meta-analysis1981–2016Persons living with dementia11Randomized controlled trial
Creighton et al., 2013Systematic review1989–2012Persons living with dementia34
  • Quasi-experimental
  • Randomized controlled trial
Fakhoury et al., 2017Literature review2000–2015Persons living with dementia6Randomized controlled trial
Fleiner et al., 2017Systematic review1994–2009Persons living with dementia5
  • Quasi-experiential
  • Randomized controlled trial
Folkerts et al., 2017Systematic review and meta-analysis1981–2016Persons living with dementia27 (15 included in meta-analysis)
  • Quasi-experiential
  • Randomized controlled trial
Garcia-Casal et al., 2017Systematic review and meta-analysis2003–2014Persons living with dementia12
  • Quasi-experiential
  • Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Reality orientation therapy alone or combined with reminiscence therapy or cognitive training
  • Cognition
  • Behavior
  • Depressive symptoms
  • Reality orientation is associated with a moderate effect on cognitive function.
  • Intervention has no effect on behavior or depressive symptoms.
Spaced retrieval:
  • Name–face associations
  • Object–name associations
  • Cue–behavior associations
  • Mixed goals/other
  • Recall
  • Behavior
Spaced-retrieval interventions are viable and may be effective in improving recall and reducing problem behaviors, but more rigorous study designs are needed.
Music therapyBehaviorFindings across studies are mixed.
Short-term structured exerciseBehaviorStructured exercise may reduce problem behaviors. Larger and more rigorous study designs are needed.
Cognitive intervention:
  • Reminiscence therapy
  • Cognitive training
  • Cognitive rehabilitation
  • Cognitive stimulation
  • Multimodal interventions
  • Cognition
  • Global scales for dementia symptoms
  • Quality of life
  • Behavior
  • Mood
  • Physical function
  • Cognitive interventions moderately improve global cognition, autobiographical memory, and behaviors.
  • Cognitive interventions are associated with small improvements in quality of life.
Computer-based cognitive training:
  • Cognitive recreation
  • Cognitive rehabilitation
  • Cognitive stimulation
  • Cognitive training
Cognition
  • Computer-based cognitive training is associated with moderate improvements in cognition and anxiety.
  • Computer-based cognitive training is associated with a small reduction in depression.
  • Computer-based cognitive training is associated with no effect on activities of daily living.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Jutkowitz et al., 2016Systematic review and meta-analysis1999–2014Persons living with dementia19Randomized controlled trial
Klimova et al., 2017Literature review2010–2014Persons living with dementia6
  • Quasi-experiential
  • Randomized controlled trial
Woods et al., 2018Systematic review and meta-analysis1987–2016Persons with dementia22 (16 included in meta-analysis)Randomized controlled trial
Levy et al., 2017Systematic review1995–2015Older adults40 (39 on dementia)
  • Quasi-experiential
  • Randomized controlled trial
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Care-delivery interventions:
  • Dementia care mapping
  • Person centered care
  • Clinical protocols
  • Emotion-oriented care
  • Staff education
  • Agitation
  • Aggression
  • Behaviors
  • Psychotropic use
  • Depression
Evidence was insufficient to draw conclusions on the effect of care-delivery interventions on agitation/aggression or problem behaviors.
Dancing therapyAny outcomesLimited data suggest dancing therapy may positively impact cognition, physical function, and mood.
Reminiscence therapy
  • Quality of life
  • Communication
  • Depression
  • Cognition
Heterogeneity of study designs makes inferences challenging, but overall, effects are small and inconsistent.
Complementary and alternative medicine:
  • Acupressure
  • Aromatherapy
  • Massage
  • Therapeutic touch
  • Reflexology
  • Natural products
  • Japanese medicine
  • Osteopathy
  • Healing touch
  • Agitation
  • Delirium
  • Complementary and alternative medicine had a small effect on reducing agitation.
  • Conclusions could not be drawn regarding the effect of complementary and alternative medicine on delirium.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
AuthorMethodDates of Studies ReviewedPopulationNo. of Studies IncludedIncluded Study Designs
Morrin et al., 2018Systematic review1995–2017Persons living with Lewy body dementia15Quasi-experiential
Nyman et al., 2018Systematic review2003–2015Persons living with dementia9 (reported in 19 articles)Randomized controlled trial
O’Caoimh et al., 2019Systematic review and meta-analysis1992–2018Persons living with mild cognitive impairment or dementia48
  • Quasi-experiential
  • Randomized controlled trial
Zhang et al., 2017Systematic review and meta-analysis1987–2016Persons living with dementia34
  • Controlled clinical trial
  • Randomized controlled trial

SOURCE: Adapted from Gaugler et al., 2020. [commissioned paper]

Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
Types of InterventionsOutcomes Examined for Persons Living with DementiaKey Findings
Nonpharmacologic interventions:
  • Deep brain stimulation
  • Transcranial direct current stimulation
  • Exercise
  • Electroconvulsive therapy
  • Repetitive transcranial magnetic stimulation
  • Cognition
  • Physical function
  • Quality of life
  • Behavior
  • Mood
  • Evidence for the effect of nonpharmacologic interventions for persons with Lewy body dementia is inconclusive.
  • More rigorous study designs are needed.
Behavior change (e.g., goal setting, social support, credible source) to promote physical activity
  • Participation in physical activity
  • Physical activity
  • Adherence
  • Some behavior change strategies are associated with increased participation in physical activity.
  • More rigorous study designs are needed.
Nonpharmacologic interventions:
  • Light therapy
  • Multimodal
  • Transcutaneous electrical nerve stimulation
  • Exercise
  • Acupressure/acupuncture
  • Cognitive-behavioral therapy
  • Sleep
  • Cognition
  • Mood
  • Behavior
  • Quality of life
  • Nonpharmacologic interventions may significantly improve sleep efficiency outcomes compared with control conditions, but overall, evidence is insufficient.
  • More rigorous study designs are needed.
Music therapy
  • Behavior
  • Cognitive function
  • Depression
  • Anxiety
  • Quality of life
  • Music therapy compared with inactive control condition associated with reductions in behaviors and anxiety.
  • The effect of music therapy on cognitive function, depression, and quality of life is unclear.
Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.

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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.

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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.

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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.

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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.

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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Suggested Citation: "Appendix C: Synthesis of Reviews of Nonpharmacologic Interventions." National Academies of Sciences, Engineering, and Medicine. 2021. Reducing the Impact of Dementia in America: A Decadal Survey of the Behavioral and Social Sciences. Washington, DC: The National Academies Press. doi: 10.17226/26175.
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Next Chapter: Appendix D: Complete Research Agenda
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