AppReminders - a pilot feasibility randomized controlled trial of a memory aid app for people with acquired brain injury

Mobile phone reminding apps can be used by people with acquired brain injury (ABI) to compensate for memory impairments. This pilot feasibility trial aimed to establish the feasibility of a randomized controlled trial comparing reminder apps in an ABI community treatment setting. Adults with ABI and memory difficulty who completed the three-week baseline were randomized (n = 29) and allocated to Google Calendar or ApplTree app. Those who attended an intervention session (n = 21) watched a 30-minute video tutorial of the app then completed reminder setting assignments to ensure they could use the app. Guidance was given if needed from a clinician or researcher. Those who passed the app assignments (n = 19) completed a three-week follow up. Recruitment was lower than target (n = 50), retention rate was 65.5%, adherence rate was 73.7%. Qualitative feedback highlighted issues that may impact usability of reminding apps introduced within community brain injury rehabilitation. Feasibility results indicate a full trial would require 72 participants to demonstrate the minimally clinically important efficacy difference between apps, should a difference exist. Most participants (19 of 21) given an app could learn to use it with the short tutorial. Design features implemented in ApplTree have potential to improve the uptake and utility of reminding apps.

VR for Cognition and Memory

This chapter will provide a review of research into human cognition through the lens of VR-based paradigms for studying memory. Emphasis is placed on why VR increases the ecological validity of memory research and the implications of such enhancements.

Memory rehabilitation: restorative, specific knowledge acquisition, compensatory, and holistic approaches

Memory impairment following an acquired brain injury can negatively impact daily living and quality of life—but can be reduced by memory rehabilitation. Here, we review the literature on four approaches for memory rehabilitation and their associated strategies: (1) the restorative approach, aimed at a return to pre-morbid functioning, (2) the knowledge acquisition approach, involving training on specific information relevant to daily life, (3) the compensatory approach, targeted at improving daily functioning, and (4) the holistic approach, in which social, emotional, and behavioral deficits are addressed alongside cognitive consequences of acquired brain injury. Each memory rehabilitation approach includes specific strategies such as drill and practice (restorative), spaced retrieval (knowledge acquisition), memory aids (compensatory), or a combination of psychotherapy and cognitive strategies (holistic). Past research has demonstrated mixed support for the use of restorative strategies to improve memory function, whereas knowledge acquisition strategies show promising results on trained tasks but little generalization to untrained tasks and activities of daily living. Compensatory strategies remain widely used but require intensive training to be effectively employed. Finally, the holistic approach is becoming more widespread due to improvements in psychosocial wellbeing, yet there are considerable resource and cost requirements. Several factors can influence rehabilitation outcomes including metacognition and emotional disturbances. Considerations for future research to improve the applicability of strategies for memory rehabilitation include assessing memory impairment severity, examining memory needs in daily life, and exploring the long-term effects of memory rehabilitation.

A Brief Period of Wakeful Rest after Learning Enhances Verbal Memory in Stroke Survivors

OBJECTIVE

Accumulating evidence suggests that wakeful rest (a period of minimal cognitive stimulation) enhances memory in clinical populations with memory impairment. However, no study has previously examined the efficacy of this technique in stroke survivors, despite the high prevalence of post-stroke memory difficulties. We aimed to investigate whether wakeful rest enhances verbal memory in stroke survivors and healthy controls.

METHOD

Twenty-four stroke survivors and 24 healthy controls were presented with two short stories; one story was followed by a 10-minute period of wakeful rest and the other was followed by a 10-minute visual interference task. A mixed factorial analysis of variance (ANOVA) with pairwise comparisons was used to compare participants' story retention at two time points.

RESULTS

After 15-30 minutes, stroke survivors (p = .002, d = .73), and healthy controls (p = .001, d = .76) retained more information from the story followed by wakeful rest, compared with the story followed by an interference task. While wakeful rest remained the superior condition in healthy controls after 7 days (p = .01, d = .58), the beneficial effect was not maintained in stroke survivors (p = .35, d = .19).

CONCLUSIONS

Wakeful rest is a promising technique, which significantly enhanced verbal memory after 15-30 minutes in both groups; however, no significant benefit of wakeful rest was observed after 7 days in stroke survivors. Preliminary findings suggest that wakeful rest enhances early memory consolidation processes by protecting against the effects of interference after learning in stroke survivors.

Cuing Prospective Memory With Smartphone-Based Calendars in Alzheimer's Disease

OBJECTIVES

We investigated the effect of using smartphone-based calendars (Google and Outlook Calendar) on prospective memory in Alzheimer's disease (AD).

METHODS

we recruited two groups of participants with mild AD. In one group, prospective memory was cued by a paper-and-pencil calendar, whereas in the second group prospective memory was cued by a smartphone calendar application. After 2 weeks of training to familiarize the participants with calendar use, we invited participants to perform three prospective events per week (e.g., remembering to go to the grocery store) during a 3-week period. Events were cued either by the paper- or smartphone-based calendar.

RESULTS

we observed fewer omissions of prospective events in the smartphone-based calendar group than in the paper-based calendar group.

CONCLUSIONS

our study suggests positive effects of smartphone calendar applications on prospective memory in AD.

The experience and acceptability of smartphone reminder app training for people with acquired brain injury: a mixed methods study

Smartphones are useful compensatory memory aids, yet training on how to use them is seldom offered as part of rehabilitation for acquired brain injuries (ABIs). We aimed to explore the experience and acceptability of a smartphone training intervention in 26 people with ABI who participated in a pilot randomized controlled trial comparing three skills training approaches. Participants completed questionnaire ratings and a semi-structured interview, six weeks post-training. Most participants rated the training as enjoyable (80.8%) and reasonable in duration (88.5%). Others reported that more than one training session was needed to learn the app (34.6%). Five themes were identified from qualitative data through thematic analysis: (1) Attitudes and pre-existing factors, (2) Experiencing the intervention, (3) Tailoring the intervention to the individual, (4) Facilitators and barriers to implementation and (5) Enhancing smartphone use in everyday life. These themes were juxtaposed with a theoretical framework of acceptability, which indicated that some elements (e.g., having a structured session and a supportive trainer) contributed to the acceptability of the intervention by minimizing training burden and increasing self-efficacy. Tailoring the training to the individual's technological skills and lifestyle, providing post-training resources and involving family members were identified as factors that could improve intervention acceptability.

Real world implementation of a group-based memory rehabilitation program into stroke services: A knowledge translation evaluation

BACKGROUND

Support for memory difficulties remains a significant unmet need for survivors of stroke. Memory skills group training of compensatory strategies can be effective for improving everyday memory function. However, access to these services remains limited.

OBJECTIVES

We aimed to evaluate the fidelity, acceptability, and effectiveness of implementing an evidence-based memory group in real-world clinical settings, to establish a potentially scalable implementation model.

METHODS

The program was facilitated at one acute and one community-based rehabilitation health service. Three clinical neuropsychologists received comprehensive training in facilitating the program. Implementation followed the Knowledge to Action framework, and implementation outcome measures included fidelity monitoring of adherence and competence, as well as clinician and participant reports of acceptability. The clinical effectiveness outcome was attainment of memory-specific goals using Goal Attainment Scaling at post-intervention and six-week follow-up.

RESULTS

The training process resulted in full adherence to the program content and demonstration of all essential clinical competencies. The program was acceptable and enjoyable for the clinicians and participants (n= 19, 63% male, 73% ischemic stroke). Participants demonstrated high levels of goal attainment (>80% at follow-up), comparable in magnitude to previous controlled trials.

CONCLUSIONS

The stroke memory skills program has the potential to be implemented successfully in real-world clinical settings using the Knowledge to Action framework, incorporating comprehensive clinician training.

Memory Compensation Strategies in Older People with Mild Cognitive Impairment

OBJECTIVES

With the rapid growth of the older population worldwide, understanding how older adults with mild cognitive impairment (MCI) use memory strategies to mitigate cognitive decline is important. This study investigates differences between amnestic and nonamnestic MCI subtypes in memory strategy use in daily life, and how factors associated with cognition, general health, and psychological well-being might relate to strategy use.

METHODS

One hundred forty-eight participants with MCI (mean age = 67.9 years, SD = 8.9) completed comprehensive neuropsychological, medical, and psychological assessments, and the self-report 'Memory Compensation Questionnaire'. Correlational and linear regression analyses were used to explore relationships between memory strategy use and cognition, general health, and psychological well-being.

RESULTS

Memory strategy use does not differ between MCI subtypes (p > .007) despite higher subjective everyday memory complaints in those with amnestic MCI (p = .03). The most marked finding showed that increased reliance-type strategy use was significantly correlated with more subjective memory complaints and poorer verbal learning and memory (p < .01) in individuals with MCI. Moreover, fewer subjective memory complaints and better working memory significantly predicted (p < .05) less reliance strategy use, respectively, accounting for 10.6% and 5.3% of the variance in the model.

CONCLUSIONS

In general, the type of strategy use in older adults with MCI is related to cognitive functioning. By examining an individual's profile of cognitive dysfunction, a clinician can provide more personalized clinical recommendations regarding strategy use to individuals with MCI, with the aim of maintaining their day-to-day functioning and self-efficacy in daily life.

Brain activation patterns associated with paragraph learning in persons with multiple sclerosis: The MEMREHAB trial

The modified Story Memory Technique (mSMT) is a memory rehabilitation program that combines training in visualization and context formation to improve learning and memory. Previous studies have shown improvement in learning and memory in individuals with multiple sclerosis (MS) after undergoing the mSMT, including changes in brain activity related to working memory and word encoding. The current study examined changes in brain activity in 16 individuals diagnosed with MS (n _treatment = 6; n _{placebo control} = 10) when they were presented with to-be-remembered information within a meaningful context (i.e. a paragraph) from before to after mSMT treatment. We expected treatment-related changes in brain activation in the language network (LAN), default mode network (DMN), and executive control network (ECN). Consistent with this prediction, fMRI results revealed reduced brain activation in the LAN, DMN and ECN after completing the mSMT treatment in the context of paragraph learning. While no significant behavioral changes were observed, a marginally significant improvement with a large effect size was noted between baseline and follow-up performance on the Rivermead Behavioral Memory Test in persons who completed treatment. Results are discussed in terms of the impact of imagery training on patterns of cerebral activation when learning words presented within a context.

Understanding the experience of compensatory and restorative memory rehabilitation: A qualitative study of stroke survivors

Memory impairment is common following stroke. Memory skills groups (MSGs) utilising compensatory strategies and computerised cognitive training (CCT) are two rehabilitation approaches available to improve memory function; however, there is no consensus as to which is more effective following stroke. This study aimed to explore and contrast the qualitative experiences of 20 stroke survivors (M_age = 61.90, SD = 10.48, range: 34-77 years) who received six weeks' training in MSG (manualised memory skills group, n = 10) or individual-CCT (Lumosity^TM, n = 10). Using semi-structured interviews, data were collected and analysed thematically, adopting a critical realist approach. Six themes were identified: (1) Facilitators and barriers to intervention engagement, (2) Improving knowledge and understanding, (3) Connecting with others, (4) Perception of the intervention, (5) Impact on everyday memory and (6) Impact on emotions and sense of purpose. Encouragingly, most participants valued and enjoyed participating in the memory interventions, irrespective of rehabilitation approach. MSG participants reported learning and sharing with similar others as important to the experience and described everyday memory improvements. CCT participants described enjoyment of its game-like nature, yet reported frustration associated with game-specific characteristics, and did not report everyday memory improvements.

Qualitative exploration of the benefits of group-based memory rehabilitation for people with neurological disabilities: implications for rehabilitation delivery and evaluation

OBJECTIVE

To identify patient-perceived benefits of memory rehabilitation and draw transferrable lessons for the delivery and evaluation of similar interventions for people with neurological disabilities.

METHODS

A qualitative study was conducted as part of a pragmatic randomised controlled trial comparing 2 memory rehabilitation approaches with a self-help control group. Postintervention interviews were conducted with 20 participants with a diagnosis of traumatic brain injury, multiple sclerosis or stroke. Data were analysed using a qualitative content analysis approach.

RESULTS

Participants receiving memory rehabilitation reported that the sessions responded to previously unmet needs for information on brain injury and memory function and developed their insight along with a sense of self-efficacy and control over the management of their memory problems. Although they did not experience major improvements in their memory function per se, they reported that rehabilitation gave them the skills to effectively cope with the residual deficits. Respondents in the control groups did not report similar benefits. The opportunities for interaction offered by the group setting were greatly valued by all respondents. Mixed aetiology groups were received positively; however, marked differences in cognitive performance were frustrating for some participants.

CONCLUSIONS

The study highlighted important patient-perceived outcomes that should be considered by researchers and rehabilitation professionals when evaluating the effects of memory rehabilitation. The use of domain-specific outcome measures which reflect these areas is recommended. Qualitative changes in the use of memory aids may be achieved which cannot be captured by frequency indices alone. The benefits of the group-based rehabilitation approach were stressed by participants, suggesting that a combination of group and individual sessions might be a good practice.

TRIAL REGISTRATION NUMBER

ISRCTN92582254; Results.

An evaluation of treatment integrity in a randomised controlled trial of memory rehabilitation for people with multiple sclerosis

OBJECTIVE

To assess the treatment integrity of a memory rehabilitation programme for people with multiple sclerosis.

SUBJECTS

Data were drawn from the intervention group of a randomised controlled trial of memory rehabilitation. This comprised 24 participants with multiple sclerosis.

MEASURES

Four core session components were identified from the treatment manual: recap, activities, take-home activity and other. One video-recording of each of ten intervention sessions was transcribed and amount of time spent on components recorded.

RESULTS

There were no significant differences between early and late stages of the programme in time spent on the core components (recap Z= -0.87, P=0.49; activities Z = -0.29, P=0.89; take-home activity Z = -0.59, P=0.69; other Z = -0.58, P=0.69). Thus, adherence to the manual was good with no evidence of programme drift.

CONCLUSIONS

Good adherence indicates the intervention was delivered as described in the manual and strengthens confidence in the findings of the randomised controlled trial.