INCOG Recommendations for Management of Cognition Following Traumatic Brain Injury, Part V: Memory

Memory for Conversation in Traumatic Brain Injury: A Feasibility Study and Preliminary Findings

PURPOSE

Despite common clinical complaints about memory for conversation after traumatic brain injury (TBI), the nature and severity of this deficit are unknown. In this research note, we report feasibility and preliminary data from a new conversation memory study protocol.

METHOD

Participants in this feasibility study were 10 pairs, each including an adult with chronic, moderate-to-severe TBI and their chosen familiar conversation partner. The experiment began with a naturalistic conversation between participants with TBI and their conversation partners. After a filled delay, participants next completed verbal recall for the conversation, which we transcribed and coded for their accuracy relative to the original conversation. Participants also read chosen statements from their original conversation and predicted what each partner would remember in a week. One week later, participants completed a posttest about who said each of the chosen statements, allowing direct comparison to their predictions.

RESULTS

We successfully collected conversation memory data from all 10 pairs, suggesting that this protocol is feasible for future study. In this preliminary sample, people with TBI and their conversation partners did not differ in the accuracy of their recall for the conversation about 20 min after it occurred. When asked to predict their partner's delayed memory, conversation partners were less accurate than participants with TBI because they underestimated how much their partners with TBI would remember.

CONCLUSION

Measuring memory for conversation in TBI is feasible and may advance the characterization of cognitive-communication impairment in TBI, and its heterogeneity, in everyday contexts.

SUPPLEMENTAL MATERIAL

https://doi.org/10.23641/asha.25927513.

Measurement of Sleep in Chronic Traumatic Brain Injury: Relationship Between Self-report and Actigraphy

OBJECTIVE

To examine the relationship between self-report and actigraphy measurement of sleep in people with and without traumatic brain injury (TBI) by addressing 2 aims: (1) to assess the relationship between self-report and actigraphy for sleep quantity in people with and without TBI; and (2) to explore how self-report and actigraphy capture sleep quality in TBI.

SETTING

Participants completed the study over 2 weeks in their own homes. They wore activity monitors, day and night, throughout the experiment and completed morning sleep diaries while interacting with an experimenter on videoconference.

PARTICIPANTS

This project was embedded in a larger study on sleep and word learning in 100 adults: 50 with chronic, moderate-severe TBI and 50 demographically matched noninjured peers. Of the 100 participants who completed the larger study, 92 participants (45 with TBI and 47 noninjured peers) had sufficient actigraphy data for inclusion in the current study.

DESIGN

We used multilevel linear regression models and correlation analyses to assess how well participants' self-report corresponded to actigraphy measurement of sleep.

MAIN MEASURES

Actigraphy measures included nightly sleep duration and nighttime wakeups. Sleep diary measures included self-reported nightly sleep duration, nighttime wakeups, sleep quality, and morning fatigue.

RESULTS

People with and without TBI did not differ in the relationship between self-reported and actigraphy measurement of sleep quantity. Performance on a neuropsychological memory assessment did not correlate with the difference in self-reported and actigraphy-measured sleep in the TBI group. Sleep characteristics that were measured by actigraphy did not predict subjective experiences of sleep quality or fatigue.

CONCLUSIONS

Short-term self-report diaries capture accurate information about sleep quantity in individuals with TBI and may support self-report of other daily habits. Future research is needed to identify reliable metrics of sleep quality, and how they relate to other domains such as memory and mood, in the chronic phase of TBI.

Perceptions of communication recovery following traumatic brain injury: A qualitative investigation across 2 years

BACKGROUND

Exploring the perceptions of individuals with traumatic brain injury (TBI) towards their brain injury recovery across the continuum of care may offer insights to support engagement with rehabilitation services. Illness narratives are a potentially valuable avenue for examining perceptions of recovery that may influence engagement.

AIMS

The aim of this study is to explore the perspective of individuals with severe TBI towards their communication, brain injury and recovery experiences at 6 months, 1 year and 2 years post-injury.

METHODS & PROCEDURES

Discourse samples were obtained from 12 participants with severe TBI at 6 months, 1 year and 2 years following injury. A standardised protocol was used to elicit responses relating to perceptions of communication, the brain injury narrative, and perceptions of recovery facilitators. A thematic analysis of the discourse samples was completed.

OUTCOMES & RESULTS

Three overarching themes were identified: experiences of communication recovery are diverse (Theme 1), varied experiences of recovery and rehabilitation (Theme 2), and continuous and lifelong journey of recovery (Theme 3). Primary communication concerns included presence of anomia, dysarthria, conversational topic difficulties, impacts of fatigue and memory difficulties. Illness narratives revealed the importance of re-establishing a sense of self and the perceived importance of a strong social network post-injury.

CONCLUSIONS & IMPLICATIONS

The varied nature of communication challenges and recovery after TBI highlights the need for holistic, multidisciplinary support as well as inclusion of family and friends in the recovery process. Social communication intervention is a perceived priority area for individuals with TBI. Illness narratives may also play a valuable role in therapy and help to shape post-injury identity. Managing the impacts of fatigue on communication and encouraging individuals to take ownership over their recovery and treatment may also help to improve patient outcomes. Supporting individuals to construct positive brain injury narratives that reaffirm a sense of self and include perspectives of family and friends may offer a potential future avenue for rehabilitation. Tailored but flexible, team-based service delivery models for individuals with TBI that span from acute to long-term care are warranted. WHAT THIS STUDY ADDS?: What is already known on this subject Communication recovery from traumatic brain injury (TBI) is complex and multifaceted. The perceptions of individuals with TBI toward their communication recovery is largely unknown. To establish rehabilitation services that meet the needs of these individuals, we need to understand how they experience communication recovery. What this paper adds to existing knowledge Social communication interventions were perceived as a priority for intervention by individuals with TBI. Fatigue was identified as perceived barrier to communication recovery. Taking ownership over one's recovery process was revealed as a facilitator of recovery. Illness narratives were found to strengthen post-injury identity over time. What are the potential or actual clinical implications of this work? Speech pathologists should prioritise social communication interventions and fatigue management for communication. Facilitating ownership of the recovery process and offering long-term supports are key aspects of treatment. Supporting positive illness narratives as part of treatment may facilitate post-injury identity construction.

Adaptation of an evidence-based, fall-prevention, Tai Ji Quan exercise program for adults with traumatic brain injury: focus group results

INTRODUCTION

Fall risk is increased in people with traumatic brain injury (TBI).

PURPOSE

This study adapted an evidence-based fall-prevention program Tai Ji Quan: Moving for Better Balance (TJQMBB) for adults with TBI and convened an online focus group with the target population for input on its delivery, content/safety, and potential benefits.

METHODS

Fall prevention and TBI experts adapted TJQMBB. Eight adults with TBI were recruited. Participants watched demonstrations of the adapted TJQMBB exercises online over ZOOM©. Themes, subthemes, and participant quotes were extracted.

RESULTS

Five women (71%) and 2 men (29%) participated with a mean age of 45 years. Nine themes and 5 subthemes were identified. Participants recommended a learning sequence of exercise demonstration with verbal directions and visual cues, followed by simple written instructions. Participants identified physical and cognitive barriers to participation and recognized that possible balance loss during exercise was a safety issue. Potential benefits included improved balance, navigation of challenging terrain, quality of life, and social inclusion.

CONCLUSION

Participants viewed the adapted program as safe and appropriate, given modifications for physical (e.g. balance) and cognitive impairments. The TJQMBB program may be underutilized in this population due to the complexity of the exercises, but is possible with modifications.

Ethical issues in clinical neuropsychology: International diversity perspectives

OBJECTIVE

Much of the information about the ethical practice of clinical neuropsychology has focused on North America. Additionally, of the scholarly publications on the intersection of ethical issues and cultural diversity practices in neuropsychology, most have focused on North America. The extent to which practitioners in other parts of the world are aware of, and find useful, such information is largely unknown. Similarly, the extent to which North American neuropsychologists are familiar with ethical issues and challenges encountered around the world is unknown. The purpose of this article is to advance the discussion of ethical issues in clinical neuropsychology from an international diversity perspective.

METHOD

The article presents, via a panel interview format, the thoughts and experiences of a small sample of neuropsychologists who represent all continents except North America (and Antarctica).

RESULTS

Neuropsychologists across continents share an ethical commitment to providing services that are beneficial, and not harmful, to the recipients of the services. Professional competence is at the heart of such services.

CONCLUSIONS

Through continued and expanded dialogue about ethical issues with neuropsychology colleagues around the world, the potential exists for improvement in the provision of effective and compassionate care in our own towns.

Speech pathologists' perspectives when managing adults following traumatic brain injury in community-based rehabilitation settings: A qualitative investigation

Purpose: Across Australia and New Zealand, speech-language pathologists (SLPs) routinely assess and treat adults with cognitive-communication disorders following traumatic brain injury (TBI). Despite their regular involvement, little is known about how clinicians provide management to this client group, particularly in community-based contexts. Therefore the aim of this study is to explore the clinical practices of SLPs who have experience working in community-based rehabilitation services with adults with cognitive-communication disorders following TBI.Method: A qualitative descriptive study using one-on-one semi-structured interviews was conducted as part of an explanatory sequential mixed-methods design. Fourteen SLPs with experience working with individuals with TBI completed an interview with content analysis used to explore the data.Result: The overarching theme identified was that a "Client-centred and inclusive approach to community-based rehabilitation services" is required. The three subthemes to emerge from the data included the importance of utilising a (1) "flexible service delivery approach", with (2) "meaningful therapy focus", and (3) "collaboration" with multidisciplinary team members and significant others when managing this client group.Conclusion: SLPs play a crucial role in client-centred inclusive rehabilitation for community-dwelling adults with cognitive-communication disorders following TBI. The complexity of working with this population requires current and future models of care to incorporate an interdisciplinary approach that is flexible in its delivery and meaningful in focus.

Electronic Assistive Technology to Support Memory Function After Traumatic Brain Injury: A Systematic Review of Efficacy and User Perspectives

Abstract Rapid technology advances have led to diverse assistive technology (AT) options for use in memory rehabilitation after traumatic brain injury (TBI). This systematic review aimed to evaluate the efficacy of electronic AT for supporting phases of memory in daily life after TBI. A secondary aim was to examine user perspectives on the utility of AT and factors influencing uptake or use. A systematic search of PsycINFO, MEDLINE, Cumulative Index of Nursing and Allied Health Literature (CINAHL), Excerpta Medica database (Embase), Scopus, and Cochrane Library was conducted from database inception to June 13, 2022, to identify eligible studies. Methodological quality was assessed by two independent reviewers. Nineteen eligible articles involving a total of 311 participants included four randomized controlled trials (RCTs; Class I), five single-case experimental designs (Class II), and 10 pre-post group (n > 10) or single-case studies without experimental control (Class III). Three Class I studies, two Class II studies and eight Class III studies supported the efficacy of AT for supporting memory functioning. Treatment fidelity was not examined in any study. There was the most empirical support for the efficacy of AT for facilitating retrieval and execution phases of memory (i.e., supported by 6/9 studies) with external support to encode memory intentions or pre-programmed reminders. Further controlled studies are needed to determine whether outcomes vary according to individuals' level of independence with use (e.g., self-initiated vs. pre-programmed reminders) and to examine user characteristics and design features influencing uptake and effectiveness. Greater involvement of end-users with brain injury in the design and evaluation of AT features is also recommended to enhance usability and uptake in daily life.

The growing gap: A study of sleep, encoding, and consolidation of new words in chronic traumatic brain injury

Word learning is an iterative and dynamic process supported by multiple neural and cognitive systems. Converging evidence from behavioral, cellular, and systems neuroscience highlights sleep as an important support for memory and word learning over time. In many lab-based word learning experiments, participants encode and subsequently retrieve newly learned words in a single session. These designs are inadequate to capture the full dynamic word learning process, making them less ecologically valid. Single timepoint studies also limit investigation of the role of behavioral and lifestyle factors, like sleep, in supporting word learning over time. Adults with a history of traumatic brain injury (TBI), who commonly exhibit deficits in the memory systems that support word learning and report concomitant sleep disturbance, provide a unique opportunity to examine the link between memory, sleep, and word learning. Here we examined word learning over time and the influence of sleep on short- and long-term word recall in 50 adults with chronic moderate-severe TBI and 50 demographically matched neurotypical peers. We used a randomized within-participant crossover design to assess immediate encoding of new words and the consolidation of those words over time across intervals that did or did not involve sleep. Participants completed this study over the course of two weeks in their own homes to capture the iterative, dynamic process of real-world word learning. We also measured sleep in free living conditions using actigraphy throughout the experiment. Participants with TBI exhibited a word learning deficit that began at encoding and persisted across time. Critically, this deficit grew over the course of the week. The performance gap between groups was larger at the 1-week post-test than the immediate post-test, suggesting deficits in both encoding and consolidation of new words in individuals with TBI. Participants with and without TBI remembered more words when they slept after learning. Ecologically valid research designs that examine the relationship between memory, sleep, and word learning over time promise to advance mechanistic accounts of word learning and improve the long-term retention of new words in individuals with and without brain injury.

Word Learning as a Window to Memory and Rehabilitation Outcomes in Traumatic Brain Injury

PURPOSE

The purpose of this viewpoint is to advocate for increased study of word learning abilities and word learning interventions in traumatic brain injury (TBI).

METHOD

We describe the word learning process and the unique opportunities afforded by studying each component and stage. Building on discussions at the 2022 International Cognitive-Communication Disorders Conference, we describe how word learning may underlie a variety of functional outcomes after TBI, making it a promising target for rehabilitation. Finally, we discuss principles that may guide study in this critical area to advance outcomes after TBI for children and adults.

RESULTS

Word learning is a dynamic and iterative process taking place over time and in multiple stages. Thus, studying word learning affords the opportunity to parse the relative contributions of multiple memory systems to different phases and components of the process. However, single-timepoint designs are insufficient to capture the full word learning process, which occurs over time and across contexts. Word learning also presents an opportunity to assess the contributions of behavioral and lifestyle factors (e.g., sleep and exercise) to different memory phases. Understanding these interactions could drive clinical interventions aimed at improving memory through manipulable external behaviors.

CONCLUSIONS

Word learning is key to success in functional spheres across the life span. The importance of words to daily life remains after TBI, even as the memory systems that support word learning are disrupted. The empirical study of word learning and rehabilitation of word learning deficits in TBI presents a promising new direction in understanding the breadth of neurogenic cognitive-communication disorders and an opportunity to explore a potential driver of functional outcome and impactful rehabilitation target.

The Power of Perception: Beliefs About Memory Ability Uniquely Contribute to Memory Performance and Quality of Life in Adults Aging with Traumatic Brain Injury

OBJECTIVE

Personal beliefs about memory ability, which comprise memory self-efficacy (MSE), can influence memory performance in healthy older adults. Self-efficacy theory also predicts that MSE biases self-perceptions of functioning more globally, potentially impacting daily activity beyond cognitive performance. People with traumatic brain injury (PwTBI) frequently report debilitating memory problems long after acute recovery, but little is known about how MSE affects health outcomes in this population. We examined demographic and clinical correlates of MSE, as well as its relationship to memory test performance and health-related quality of life (QOL), in older adults with chronic moderate-to-severe TBI (msTBI).

METHOD

One hundred fourteen adults, aged 50+ and at least 1 year post-msTBI, underwent neuropsychological testing to assess their memory functioning. Participants also self-reported levels of psychological distress, MSE (Cognitive Confidence subscale of the Metacognitions Questionnaire), and health-related QOL (Quality of Life after Brain Injury questionnaire).

RESULTS

Demographic and injury-related predictors showed weak correlations with MSE. Although the relationship between MSE and general psychological distress was robust, only the former significantly predicted memory performance. Bivariate analyses revealed significant relationships between MSE and five out of the six QOL domains assessed. Multivariate linear regression revealed a significant impact of MSE on overall QOL independent of demographic and clinical variables.

CONCLUSIONS

Our findings support a unique role for MSE in both the objective cognitive performance and subjective health of PwTBI. Increased focus on self-perceptions of ability and their impact on measured outcomes is an important step towards personalized rehabilitation for adults with chronic msTBI.

Update on the Efficacy of Cognitive Rehabilitation After Moderate to Severe Traumatic Brain Injury: A Scoping Review

OBJECTIVES

To identify, categorize, and analyze the methodological issues of cognitive rehabilitation of patients with moderate to severe traumatic brain injury and its efficacy.

DATA SOURCES

Pubmed and PsycINFO were searched for studies published between 2015 and 2021 using keywords for cognitive intervention and traumatic brain injury.

STUDY SELECTION

Two independent reviewers selected articles concerning cognitive rehabilitation for adults with traumatic brain injury. Of 458 studies, 97 full-text articles were assessed and 46 met the inclusion criteria.

DATA EXTRACTION

Data were analyzed by 1 reviewer according to criteria concerning the methodological quality of studies.

DATA SYNTHESIS

Results showed a large scope of 7 cognitive domains targeted by interventions, delivered mostly in individual sessions (83%) with an integrative cognitive approach (48%). Neuroimaging tools as a measure of outcome remained scarce, featuring in only 20% of studies. Forty-three studies reported significant effects of cognitive rehabilitation, among which 7 fulfilled a high methodological level of evidence.

CONCLUSIONS

Advances and shortcomings in cognitive rehabilitation have both been highlighted and led us to develop methodological key points for future studies. The choice of outcome measures, the selection of control interventions, and the use of combined rehabilitation should be investigated in further studies.

INCOG 2.0 Guidelines for Cognitive Rehabilitation Following Traumatic Brain Injury, Part V: Memory

INTRODUCTION

Memory impairments affecting encoding, acquisition, and retrieval of information after moderate-to-severe traumatic brain injury (TBI) have debilitating and enduring functional consequences. The interventional research reviewed primarily focused on mild to severe memory impairments in episodic and prospective memory. As memory is a common focus of cognitive rehabilitation, clinicians should understand and use the latest evidence. Therefore, the INCOG ("International Cognitive") 2014 clinical practice guidelines were updated.

METHODS

An expert panel of clinicians/researchers reviewed evidence published since 2014 and developed updated recommendations for intervention for memory impairments post-TBI, a decision-making algorithm, and an audit tool for review of clinical practice.

RESULTS

The interventional research approaches for episodic and prospective memory from 2014 are synthesized into 8 recommendations (6 updated and 2 new). Six recommendations are based on level A evidence and 2 on level B. In summary, they include the efficacy of choosing individual or multiple internal compensatory strategies, which can be delivered in a structured or individualized program. Of the external compensatory strategies, which should be the primary strategy for severe memory impairment, electronic reminder systems such as smartphone technology are preferred, with technological advances increasing their viability over traditional systems. Furthermore, microprompting personal digital assistant technology is recommended to cue completion of complex tasks. Memory strategies should be taught using instruction that considers the individual's functional and contextual needs while constraining errors. Memory rehabilitation programs can be delivered in an individualized or mixed format using group instruction. Computer cognitive training should be conducted with therapist guidance. Limited evidence exists to suggest that acetylcholinesterase inhibitors improve memory, so trials should include measures to assess impact. The use of transcranial direct current stimulation (tDCS) is not recommended for memory rehabilitation.

CONCLUSION

These recommendations for memory rehabilitation post-TBI reflect the current evidence and highlight the limitations of group instruction with heterogeneous populations of TBI. Further research is needed on the role of medications and tDCS to enhance memory.

INCOG 2.0 Guidelines for Cognitive Rehabilitation Following Traumatic Brain Injury: Methods, Overview, and Principles

INTRODUCTION

Moderate to severe traumatic brain injury (TBI) results in complex cognitive sequelae. Despite hundreds of clinical trials in cognitive rehabilitation, the translation of these findings into clinical practice remains a challenge. Clinical practice guidelines are one solution. The objective of this initiative was to reconvene the international group of cognitive researchers and clinicians (known as INCOG) to develop INCOG 2.0: Guidelines for Cognitive Rehabilitation Following TBI.

METHODS

The guidelines adaptation and development cycle was used to update the recommendations and derive new ones. The team met virtually and reviewed the literature published since the original INCOG (2014) to update the recommendations and decision algorithms. The team then prioritized the recommendations for implementation and modified the audit tool accordingly to allow for the evaluation of adherence to best practices.

RESULTS

In total, the INCOG update contains 80 recommendations (25 level A, 15 level B, and 40 level C) of which 27 are new. Recommendations developed for posttraumatic amnesia, attention, memory, executive function and cognitive-communication are outlined in other articles, whereas this article focuses on the overarching principles of care for which there are 38 recommendations pertaining to: assessment (10 recommendations), principles of cognitive rehabilitation (6 recommendations), medications to enhance cognition (10 recommendations), teleassessment (5 recommendations), and telerehabilitation intervention (7 recommendations). One recommendation was supported by level A evidence, 7 by level B evidence, and all remaining recommendations were level C evidence. New to INCOG are recommendations for telehealth-delivered cognitive assessment and rehabilitation. Evidence-based clinical algorithms and audit tools for evaluating the state of current practice are also provided.

CONCLUSIONS

Evidence-based cognitive rehabilitation guided by these recommendations should be offered to individuals with TBI. Despite the advancements in TBI rehabilitation research, further high-quality studies are needed to better understand the role of cognitive rehabilitation in improving patient outcomes after TBI.

Navigating the impact of workplace distractions for persons with TBI: a qualitative descriptive study

Persons with traumatic brain injuries (TBIs) who return to work often struggle with managing environmental distractions due to residual cognitive impairments. Previous literature has established that environmental distractions impact persons with TBI, yet, the extent to which distractions impact workplace performance is unknown. This qualitative descriptive study using phenomenology methods, explored the experiences of seven individuals with TBIs and how they perceived workplace distractions to impact their productivity. Data was collected using semi-structured interviews with seven participants who were diagnosed with mild, moderate, and severe TBIs. Interviews were transcribed and analyzed using thematic analysis. Main findings centered around what environmental distractions impacted work performance, the farther-reaching consequences of distractibility, strong emotional feelings and worry about perceived work performance associated with distractibility, mitigating distractibility through “gaming the attentional system”, and utilizing music as a distraction masker to enhance task performance. In light of this study’s findings, researchers, and clinicians are encouraged to consider the wider impact of distractions on persons with TBI. The real-life accounts documented in this study will assist researchers and clinicians to account for the impact of environmental distractions in rehabilitation and support employment for persons with TBI.

Computer-assisted training of executive functions in adult patients with non-progressive acquired brain damage - a pilot study on efficacy of a new therapeutic application

Executive dysfunction is most often caused by post-traumatic or post-stroke damage to the prefrontal regions of the brain. The aim of this study was to compare the efficacy of two computer-assisted therapy programs for executive dysfunctions in patients with acquired brain injury. Patients were trained using either a newly developed application ExeSystem (designed to help improve the ability to manage and control one's own behavior by performing tasks imitating natural, everyday situations) or a combination of two commercial applications RehaCom and CogniPlus. Data collected after a three-week period of therapy conducted in two 15-person groups of participants indicated comparable efficacy of both therapy programs in improving quality of daily functioning, executive attention, as well as planning and problem-solving but not memory. The improvement in social competence (p = .028) was the only advantage of therapy with the ExeSystem. Therapeutic interactions using computer programs were shown to be positively evaluated by patients (p < .01). This study confirmed at least equal efficacy of computer-based executive function therapy using ExeSystem compared to RehaCom and CogniPlus. However, despite the implementation of a more ecological and comprehensive approach to the content of a new application, the benefits of this approach were limited.

N-methyl-D-aspartate receptor antagonists in improving cognitive deficits following traumatic brain injury: a systematic review

OBJECTIVE

To review the role of N-methyl-D-aspartate receptor (NMDAR) antagonists in managing post-TBI cognitive deficits.

METHODS

A search of PubMed, Embase, and Cochrane was conducted on Jan 12, 2021 without publication date or language restriction.

RESULTS

Forty-seven studies were included, involving 20 (42.6%) randomized controlled trials. Four (8.5%) studies had a low risk of bias (RoB), while 34 (72.3%) had unclear and nine (19.2%) had high RoB. Six NMDAR antagonists had been investigated: amantadine (n = 32), memantine (n = 4), magnesium (n = 4), traxoprodil (n = 3), selfotel (n = 2), and dextromethorphan (n = 2).

CONCLUSION

Although some benefits were observed, there are still some concerns regarding the efficacy and safety of NMDAR antagonists in improving post-TBI cognitive deficits. Further research is required to examine whether (i) these agents, notably amantadine, could accelerate cognitive improvement and shorten the hospital stay, (ii) these agents affect different cognitive domains/subdomains in the same direction, (iii) an optimal therapeutic time window exists, (iv) a member of this drug class can be proved to be effective without interfering in non-excitotoxic actions of glutamate, (v) they can be more effective as part of combination therapies or in particular subgroups of patients with TBI.

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.

Errorless learning and assistive technology did not improve the negative prognosis for severe dressing impairment after stroke if persisting for two weeks: A randomized controlled trial

Following severe cerebrovascular accidents, patients are often unable to dress themselves. Little is known about the persistence and treatment of this impairment. Study 1 followed 23 patients who were (1) completely dependent on others for help with dressing (2) for two weeks continually until their discharge from the rehabilitation unit. Study 2, a randomized controlled trial of 24 patients, examined the effects of errorless learning and RehaGoal App-based dressing practice on recovery in dressing ability-impaired patients who also experienced visuospatial neglect and/or apraxia. The control and intervention groups both underwent a standard therapy in the rehab unit; the intervention group additionally received dressing training (seven sessions of 45 min). The primary outcome measure was the score on an adapted version of the Nottingham Stroke Dressing Assessment; secondary outcome measures were the Barthel Index and Functional Independence Measure. Less than one-third of the patients in Study1, showed improvement. In Study 2, the intervention produced no specific effect on patients' dressing ability. However, apraxia and neglect predicted improvement for both groups. If patients depend completely on assistance for dressing for two weeks, prospects for recovery are limited. Future studies should include additional intervention sessions and incorporate treatments for neglect or apraxia.

Perceptions About Writing by Adults With Moderate or Severe Traumatic Brain Injury

PURPOSE

Writing challenges can cause ongoing distress and limit resumption of pre-injury activities following traumatic brain injury (TBI); however, little TBI research or clinical practice addresses written communication. Understanding the writing perceptions and experiences of adults engaged in intensive, inpatient rehabilitation following hospital discharge for TBI is an initial step in addressing this situation.

METHOD

Transcendental phenomenology served to structure this qualitative research. Six adults between 2 and 6 months post-TBI participated in a common experience of writing about a personal memorable event. Standardized test scores and symptom ratings provided descriptive information about participants. Additionally, participants completed the Neurobehavioral Symptom Inventory and NASA Task Load Index and engaged in semistructured interviews to describe writing perceptions and experiences.

RESULTS

Data analysis revealed themes and subthemes about writing perceptions, challenges, and support strategies. Participants varied in their perceptions of post-injury writing changes. Test results revealed areas of challenge for all participants, but only half reported awareness of writing changes. Those aware of changes differed from other participants regarding word retrieval, memory, and concentration as well as overall effort expended, frustration, and performance quality. Although all participants relied on writing supports, only one had adjusted multiple writing strategies following injury.

CONCLUSIONS

Some adults with TBI are aware of writing changes while receiving posthospital, inpatient rehabilitation services, but others deny such changes. This differs from reports concerning later recovery stages, perhaps because few functional writing opportunities arise during rehabilitation. Application of compensatory strategies specific to post-injury writing challenges is unlikely while awareness remains limited.

Does Integrating Cognitive and Psychological Interventions Enhance Wellbeing After Acquired Brain Injury? Study Protocol for a Phase II Randomized Controlled Trial of the VaLiANT (Valued Living After Neurological Trauma) Group Program

Background and Objectives

Cognitive and emotional changes affect the majority of individuals with acquired brain injury (ABI) and are associated with poorer outcomes. The evidence for “siloed” rehabilitation approaches targeting cognition and mood separately remains mixed. Valued living (i.e., acting consistently with personal values) is associated with better psychological functioning and participation in work and other productive activities. Rehabilitation interventions that concurrently address cognitive and emotional barriers to valued living may therefore result in improved outcomes. VaLiANT (Valued Living After Neurological Trauma) is an 8-week group intervention developed by our team, which uniquely combines cognitive rehabilitation and psychological therapy to improve wellbeing and meaningful participation (i.e., valued living) following ABI.

Method

This protocol describes the design and implementation of a Phase II parallel-group randomized controlled trial with blinded outcome assessors, to evaluate the potential efficacy of VaLiANT and the feasibility of a Phase III trial. Participants are adults with a history of ABI at least 3 months prior to study entry, who experience cognitive and/or emotional difficulties and associated reduced participation in valued activities. Random allocation to the treatment condition (8-week VaLiANT group program) or a usual care waitlist control condition occurs at a 2:1 treatment: control ratio. The primary outcome is wellbeing, measured by the Warwick-Edinburgh Mental Wellbeing Scale. Secondary outcomes include measures of valued living, mood, cognitive complaints, quality of life, community participation, post-traumatic growth, and self-efficacy. All measures are collected across three time points by blinded assessors (baseline, 8-week follow-up, 16-week follow-up). Trial feasibility will be evaluated against recruitment rates, drop-out rates, intervention acceptability, and treatment fidelity (manual adherence and therapist competence).

Discussion

This trial will extend current knowledge on how to improve long-term outcomes following ABI by evaluating an innovative integrated, multi-domain approach to rehabilitation concurrently addressing cognitive and emotional barriers to participation in meaningful life roles.

A single-case experimental evaluation of a new group-based intervention to enhance adjustment to life with acquired brain injury: VaLiANT (valued living after neurological trauma)

Adjustment to life with acquired brain injury (ABI) requires self-identity and behaviour to be updated, incorporating injury-related changes. Identifying and enabling new values-consistent behaviours could facilitate this process. We evaluated the feasibility, acceptability, and preliminary efficacy of VaLiANT, a new group intervention that aims to enhance "valued living" following ABI. We used a non-concurrent multiple baseline single-case experimental design (SCED) with an 8-week follow-up phase and randomization to multiple baseline lengths (5-7 weeks). Eight participants (50% women, aged 26-65; 4 Stroke, 3 Traumatic Brain Injury, 1 Epilepsy) attended eight group sessions with assessments before, during, and after the group. Target behaviour was valued living, assessed weekly by the Valued Living Questionnaire. Secondary outcomes included measures of wellbeing, mood, psychological acceptance, self-efficacy regarding ABI consequences, cognitive complaints, and intervention acceptability. Target behaviour was analysed through visual and statistical analysis while secondary outcome data were analysed via reliable change indices and descriptive statistics. Target behaviour data displayed no convincing patterns of improvement. Reliable improvements were found for most participants on secondary outcomes, particularly subjective wellbeing and anxiety. Intervention delivery was feasible with high acceptability ratings. Further investigation of VaLiANT is warranted, based on the feasibility and acceptability of intervention delivery and signals of efficacy identified across adjustment-related secondary outcomes.

Recommendations for the Design and Implementation of Virtual Reality for Acquired Brain Injury Rehabilitation: Systematic Review

BACKGROUND

Virtual reality (VR) is increasingly being used for the assessment and treatment of impairments arising from acquired brain injuries (ABIs) due to perceived benefits over traditional methods. However, no tailored options exist for the design and implementation of VR for ABI rehabilitation and, more specifically, traumatic brain injury (TBI) rehabilitation. In addition, the evidence base lacks systematic reviews of immersive VR use for TBI rehabilitation. Recommendations for this population are important because of the many complex and diverse impairments that individuals can experience.

OBJECTIVE

This study aims to conduct a two-part systematic review to identify and synthesize existing recommendations for designing and implementing therapeutic VR for ABI rehabilitation, including TBI, and to identify current evidence for using immersive VR for TBI assessment and treatment and to map the degree to which this literature includes recommendations for VR design and implementation.

METHODS

This review was guided by PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). A comprehensive search of 11 databases and gray literature was conducted in August 2019 and repeated in June 2020. Studies were included if they met relevant search terms, were peer-reviewed, were written in English, and were published between 2009 and 2020. Studies were reviewed to determine the level of evidence and methodological quality. For the first part, qualitative data were synthesized and categorized via meta-synthesis. For the second part, findings were analyzed and synthesized descriptively owing to the heterogeneity of data extracted from the included studies.

RESULTS

In the first part, a total of 14 papers met the inclusion criteria. Recommendations for VR design and implementation were not specific to TBI but rather to stroke or ABI rehabilitation more broadly. The synthesis and analysis of data resulted in three key phases and nine categories of recommendations for designing and implementing VR for ABI rehabilitation. In the second part, 5 studies met the inclusion criteria. A total of 2 studies reported on VR for assessment and three for treatment. Studies were varied in terms of therapeutic targets, VR tasks, and outcome measures. VR was used to assess or treat impairments in cognition, balance, and anxiety, with positive outcomes. However, the levels of evidence, methodological quality, and inclusion of recommendations for VR design and implementation were poor.

CONCLUSIONS

There is limited research on the use of immersive VR for TBI rehabilitation. Few studies have been conducted, and there is limited inclusion of recommendations for therapeutic VR design and implementation. Future research in ABI rehabilitation should consider a stepwise approach to VR development, from early co-design studies with end users to larger controlled trials. A list of recommendations is offered to provide guidance and a more consistent model to advance clinical research in this area.

Building a theoretical foundation for cognitive rehabilitation

This scientific commentary refers to ‘A randomized clinical trial of plasticity-based cognitive training in mild traumatic brain injury’ by Mahncke et al. (doi:10.1093/brain/awab202).

The effectiveness of memory remediation strategies after traumatic brain injury: Systematic review and meta-analysis

BACKGROUND

Traumatic brain injury (TBI) is a steadily rising health concern associated with significant risk of emotional, behavioral and cognitive impairments. Cognitive memory impairment is one of the most concerning outcomes after TBI, affecting a wide range of everyday activities, social interactions and employment. Several comparative and comprehensive reviews on the effects of cognitive interventions in individuals with TBI have been conducted but usually with a qualitative rather than quantitative approach. Thus, evidence synthesis of the effects of TBI interventions on memory difficulties is limited.

OBJECTIVE

In this meta-analysis, we examined the memory-remediating effects of internal and external interventions, injury severity and the interaction of both factors for patients with TBI.

METHODS

Data were extracted from studies published between 1980 and 2020 that used objective memory measures (computerized or pencil-and-paper), and multiple meta-analyses were conducted to compare effectiveness across these interventions. Publication bias was assessed, as was quality of evidence using the Cochrane Risk of Bias tool for randomized controlled studies. Our final meta-analysis included 16 studies of 17 interventions classified into 3 categories: internal, external and mixed.

RESULTS

Mixed interventions demonstrated the highest average effect size for memory difficulties (Morris d=0.79). An evaluation of injury severity yielded 2 categories: mild-moderate and moderate-severe. Analyses demonstrated a homogenous medium effect size of improvement across injury severity, with moderate-severe injury with the largest average effect size (Morris d=0.65). Further evaluation of injury severity interaction with intervention type revealed a mediating effect for both factors, demonstrating the largest effect size for mixed interventions with moderate-severe injury (Morris d=0.81).

CONCLUSION

This study highlights the effectiveness of memory remediation interventions on memory impairment after TBI. A wide range of interventions are more effective because they address individual variability for severity and memory deficits. The study further supports and expands existing intervention standards and guidelines.

Narrative review of clinical practice guidelines for treating people with moderate or severe traumatic brain injury

BACKGROUND:

Practice guidelines (CPGs) provide informed treatment recommendations from systematic reviews and assessment of the benefits and harms that are intended to optimize patient care. Review of CPGs addressing rehabilitation for people with moderate/severe traumatic brain injury (TBI), has not been fully investigated.

OBJECTIVE:

Identify published, vetted, clinical practice guidelines that address rehabilitation for people with moderate/severe TBI.

METHODS:

Six data bases were accessed using key word search terms: “Traumatic Brain Injury” and “Clinical Practice Guidelines” and “Rehabilitation”. Further inclusions included “adult” and “moderate or severe”. Exclusions included: “mild” and “concussive injury”. Three reviewers read abstracts and manuscripts for final inclusion. The AGREE II template was applied for additional appraisal.

RESULTS:

There were 767 articles retrieved using the search terms, 520 were eliminated because of content irrelevance; and 157 did not specify rehabilitation treatment or did not follow a process for CPGs. A total of 17 CPGs met all criteria and only 4 of these met all AGREE II criteria.

CONCLUSION:

There are few CPGs addressing rehabilitation for people with moderate/severe TBI. More interventional trials are needed to determine treatment effectiveness. Timely and methodologically sound vetting of studies are needed to ensure CPG reliability and facilitate access to quality, effective treatment for people with moderate/severe TBI.

Interprofessional Collaborative Management of Postconcussion Cognitive Symptoms

Purpose The purpose of this clinical focus article is to illustrate an interprofessional cognitive rehabilitation approach. Invited experts representing physical medicine and rehabilitation, clinical neuropsychology/rehabilitation psychology, registered nurse care coordination, and speech-language pathology share viewpoints from their discipline to engage in collaborative interventions with the goal of enhancing treatment outcomes. Conclusions Treating the multifactorial symptoms of concussion requires expertise from an interdisciplinary team (IDT) of professionals, contributing unique perspectives and providing integrative services to optimize rehabilitation outcomes for patients. Speech-language pathologists serve an important role on IDTs to deliver personalized, targeted therapies for prolonged or persistent postconcussion cognitive impairment.

Combined Memory Training: An Approach for Episodic Memory Deficits in Traumatic Brain Injury

Purpose The study aimed to test a combination of semantic memory and traditional episodic memory therapies on episodic memory deficits in adults with traumatic brain injury. Method Twenty-five participants who had been diagnosed with traumatic brain injury and had episodic memory deficits were randomly assigned either to a combined memory treatment group (n = 16) or to a wait-list control group (n = 9). Before and after treatment, they completed standardized neuropsychological testing for episodic memory and related cognitive domains, including the California Verbal Learning Test-Second Edition, the Controlled Oral Word Association Test, the University of Southern California Repeatable Episodic Memory Test, the Wechsler Abbreviated Scale of Intelligence-Second Edition Matrices, the Test of Everyday Attention, the Memory Assessment Clinics Self-Rating Scale, the Expressive Vocabulary Test-Second Edition, and the Story Recall subtest from the Rivermead Behavioural Memory Test. In addition to a traditional episodic memory therapy, the treatment group received a novel semantic memory-focused therapy, which involved participants finding meaningful connections between diverse concepts represented by sets of two or three words. Results The treatment group demonstrated statistically significant improvement in memory for list learning tasks, and there was a significant difference from pretest to posttest between the treatment group and the wait-list control group. Clinical significance was demonstrated for the treatment group using minimally important difference calculations. Conclusion Combined memory therapy resulted in significant improvements in episodic memory, semantic memory, and attention, in comparison to no treatment. Supplemental Material https://doi.org/10.23641/asha.14049968.

Working memory training: Taking a step back to retool and create a bridge between clinical and neuroimaging research methods

Improvements in patient outcomes and mortality after brain injury alongside increasing ageing population have resulted in an increasing need to develop cognitive interventions for individuals experiencing changes in their cognitive function. One topic of increasing research interest is whether cognitive functions such as attention, memory and executive functioning can be improved through the use of working memory training interventions. Both clinical and neuroimaging researchers are working to evidence this, but their efforts rarely come together. We discuss here several issues that may be hindering progress in this area, including the tools researchers utilize to measure cognition, the choice between employing active or passive control groups, the focus on transfer effects at the expense of well-characterized training effects, and the overall lack of neuroimaging studies in individuals with neurological disorders. We argue that the only way to advance the field is to build bridges between the disciplines of clinical neuropsychology and cognitive neuroscience. We suggest a multi-level framework to validate the efficacy of working memory interventions and other forms of cognitive training that combine both clinical and neuroimaging approaches. We conclude that in order to move forward we need to form multidisciplinary teams, employ interdisciplinary methods, brain imaging quality rating tools and build national and international collaborations based on open science principles.

Cognitive Training for Mild Traumatic Brain Injury and Posttraumatic Stress Disorder

Although there is evidence of mild cognitive impairments for many individuals with mild traumatic brain injury (mTBI) and posttraumatic stress disorder (PTSD), little research evaluating the effectiveness of cognitive training interventions has been conducted. This randomized controlled trial examined the effectiveness of a 9-h group cognitive training targeting higher-order functions, Strategic Memory Advanced Reasoning Training (SMART), compared to a 9-h psychoeducational control group in improving neurocognitive functioning in adults with mTBI and PTSD. A sample of 124 adults with histories of mild TBI (n = 117) and/or current diagnoses of PTSD (n = 84) were randomized into SMART (n = 66) or Brain Health Workshop (BHW; n = 58) and assessed at three time points: baseline, following training, and 6 months later. Participants completed a battery of neurocognitive tests, including a test of gist reasoning (a function directly targeted by SMART) as well as tests of verbal, visual, and working memory and executive functioning, functions commonly found to be mildly impaired in mTBI and PTSD. The two groups were compared on trajectories of change over time using linear mixed-effects models with restricted maximum likelihood (LMM). Contrary to our hypothesis that SMART would result in superior improvements compared to BHW, both groups displayed statistically and clinically significant improvements on measures of memory, executive functioning, and gist reasoning. Over 60% of the sample showed clinically significant improvements, indicating that gains can be found through psychoeducation alone. A longer SMART protocol may be warranted for clinical samples in order to observe gains over the comparison group.

Speech-Language Pathologists' Practices for Addressing Cognitive Deficits in College Students With Traumatic Brain Injury

Purpose Traumatic brain injury (TBI) accounts for a large percentage of death and disability in the United States. Survivors of TBI and their families often face impaired cognition (e.g., memory or attention). Currently, evidence supports the use of individualized cognitive therapy for individuals who experience TBI. Therefore, we conducted a modified narrative literature review of speech-language pathologists' practices relative to college students with TBI. Method We conducted a search across three platforms. Nine hundred sixty-three articles were reviewed by title. From this, 178 articles were selected to be reviewed by abstract and 36 articles were read in full. Of these, 13 articles were included in the review. Articles were selected for inclusion or exclusion based on specific criteria related to population and diagnosis. Results Overall, little evidence exists to guide clinicians regarding specific assessment and treatment practices for college students postinjury. The findings of this review article span four major areas: (a) general service delivery efforts, (b) education, (c) assessment, and (d) treatment. Conclusion Results of the literature search indicate that evidence is lacking to support specific practices for use by speech-language pathologists with this population and highlight future research needs to inform clinical practice.

The StrokeCog study: development and description of a cognition-focused psychological intervention to address cognitive impairment following stroke

OBJECTIVE

To describe the process of developing a cognitive rehabilitation intervention for patients with post-stroke cognitive impairment (PSCI) and to describe the intervention prior to evaluation in a pilot randomised controlled trial (RCT). Method: The Medical Research Council framework, 'Developing and evaluating complex interventions', was used to develop the cognitive rehabilitation intervention. We conducted a combined analysis of the existing evidence base for PSCI rehabilitation alongside qualitative exploration of the perspectives of stroke survivors, their families, and healthcare professionals providing stroke care, on the necessary components for a cognitive rehabilitation intervention for PSCI. The Template for Intervention Description and Replication checklist was used as a structural framework for the description of the intervention. Results: The intervention comprises a five-week intervention integrating group-based activities, supported by a clinical neuropsychologist, with home-based activities to encourage self-efficacy through the practice of adjustment and compensatory strategies learned in the group format to achieve the patients' identified goals in managing their PSCI. Conclusion: A cognitive rehabilitation intervention for patients with PSCI has been developed and described. We are in the process of developing a structured intervention manual to standardise the content and delivery of the intervention for further testing in a pilot RCT.

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.

Attention and Communication Following TBI: Making the Connection through a Meta-Narrative Systematic Review

BACKGROUND AND AIM

Communication difficulties are one of the hallmark characteristics of adults following traumatic brain injury (TBI), a difficulty that incorporates multiple aspects of cognition and language. One aspect of cognition that impacts communication is attention. This review explores both attention and communication following moderate to severe TBI and aims to connect them through a narrative analysis of the discourse surrounding the terms and how they have evolved over time. This includes exploring and reviewing theories and specific constructs of these two aspects of cognition.

METHOD

A meta-narrative systematic literature review was completed according to RAMESES methodology.

RESULTS

A total of 37 articles were included in the review. The disciplines that populated the articles included, but were not limited to, speech language pathology (SLP) 36.5%, psychology 23.8%, and a collaboration of neuropsychology and SLP 7.9%. Of the papers that were included, 10% explored and supported theories of attention related to executive function affecting communication. Specific levels of attention were mapped onto specific communication skills with the corresponding year and authors to create a timeline and narrative of these concepts.

CONCLUSIONS

The main communication behaviours that are related to attention in the context of post-TBI cognition include discourse, tangential communication, social communication, auditory comprehension, verbal reasoning, topic maintenance, interpretation of social cues and emotions, verbal expression, reading comprehension, verbal response speed, and subvocal rehearsal.

Compensatory Interventions for Cognitive Impairments in Psychosis: A Systematic Review and Meta-Analysis

OBJECTIVE

Cognitive compensatory interventions aim to alleviate psychosocial disability by targeting functioning directly using aids and strategies, thereby minimizing the impact of cognitive impairment. The aim was to conduct a systematic review and meta-analysis of cognitive compensatory interventions for psychosis by examining the effects on functioning and symptoms, and exploring whether intervention factors, study design, and age influenced effect sizes.

METHODS

Electronic databases (Ovid Medline, PsychINFO) were searched up to October 2018. Records obtained through electronic and manual searches were screened independently by two reviewers according to selection criteria. Data were extracted to calculate estimated effects (Hedge's g) of treatment on functioning and symptoms at post-intervention and follow-up. Study quality was assessed using Cochrane Collaboration's risk of bias tool.

RESULTS

Twenty-six studies, from 25 independent randomized controlled trials (RCTs) were included in the meta-analysis (1654 participants, mean age = 38.9 years, 64% male). Meta-analysis revealed a medium effect of compensatory interventions on functioning compared to control conditions (Hedge's g = 0.46, 95% CI = 0.33, 0.60, P < .001), with evidence of relative durability at follow-up (Hedge's g = 0.36, 95% CI = 0.19, 0.54, P < .001). Analysis also revealed small significant effects of cognitive compensatory treatment on negative, positive, and general psychiatric symptoms, but not depressive symptoms. Estimated effects did not significantly vary according to treatment factors (ie, compensatory approach, dosage), delivery method (ie, individual/group), age, or risk of bias. Longer treatment length was associated with larger effect sizes for functioning outcomes. No evidence of publication bias was identified.

CONCLUSION

Cognitive compensatory interventions are associated with robust, durable improvements in functioning in people with psychotic illnesses.

Traumatic brain injury-needs and treatment options in the chronic phase: Study protocol for a randomized controlled community-based intervention

BACKGROUND

Traumatic brain injury (TBI) is often associated with life-long medical, cognitive, emotional, and behavioral changes. Although long-lasting disabilities are expected, research on effective treatment options in the chronic phase of TBI is scarce.

METHODS/DESIGN

This study protocol describes a randomized controlled trial (RCT) aimed at evaluating the effectiveness of a goal-oriented and community-based intervention for increasing community integration, quality of life, and functional independence in the chronic phase of complicated mild to severe TBI. Participants will be recruited from Oslo University Hospital, Norway. Patients aged 18-72 years living at home with MRI/CT-verified intracranial abnormalities, a TBI diagnosis, a time since injury of ≥ 2 years, and who experience either current TBI-related problems or restrictions in community integration will be included. The 120 participants will be randomized 1:1 to either (a) an intervention group, which will receive an in-home intervention program over 4 months, or (b) a control group receiving standard care in the municipalities. The intervention will consist of six home visits and two telephone contacts with a rehabilitation professional. A SMART-goal approach will be adopted to target the individual's self-reported TBI difficulties in everyday life. Primary outcomes will be self-reported quality of life and participation. Secondary outcomes include symptom burden, emotional functioning, and clinician-assessed global outcome and need for rehabilitation services. Outcomes will be evaluated at baseline and 4-5 and 12 months after baseline. Caregiver burden and general health will be assessed in participating family members. Goal attainment and acceptability will be evaluated in the intervention group. A process evaluation will be carried out to evaluate protocol adherence, and a cost-effectiveness analysis will be applied if the intervention is found to be effective.

DISCUSSION

The current study provides an innovative approach to rehabilitation in the chronic phase of TBI evaluated using an RCT design that may inform treatment planning, health policies, and coordination of patient care. Further, the study may demonstrate new modes of establishing collaboration and knowledge transition between specialized rehabilitation facilities and local rehabilitation services that may improve patient outcomes.

TRIAL REGISTRATION

ClinicalTrials.gov, NCT03545594. Registered on June 4th, 2018.

Cognitive interventions for children with acquired brain injury: A systematic review

This systematic review identified empirically supported evidence of effective cognitive intervention for children with Acquired Brain Injury (ABI) and included clinical practice guidelines and recommendations for intervention of attention, memory and executive functioning. Databases included: PsycARTICLES; MEDLINE; PubMed; PsycINFO; PSYCHextra; Ovid; PsychBite; CINAHL and EMBASE. Abstracts and full text articles were reviewed by two independent authors. Articles reporting on a cognitive intervention for children aged 4-19 years with a primary diagnosis of ABI were included. 25 articles were identified by both reviewers (1 00% inter-rater agreement), with the last search conducted in June 201 9. Articles were assigned to one of four categories of primary intervention: (1) Attention and Memory; (2) Executive Functioning; (3) Attention, Memory, and Executive Functioning or (4) Multi-Model Comprehensive Combined Approaches. Articles were critically appraised and level of evidence was determined according to established quality methodology criteria. Of the 25 articles evaluated, nine articles were rated Class 1, eight Class 11, and nine Class 111. One practice standard and one practice option was provided. Key suggestions included using more homogeneous samples in terms of age and injury characteristics (e.g., nature and severity of ABI, age at ABI) and incorporating long-term monitoring of outcome. Interventionalists must consider the dynamic nature of brain and cognitive development and the changing environmental needs of children.

Evidence based practice and knowledge translation: A survey of Australian occupational therapy practice with clients experiencing neurocognitive impairments

INTRODUCTION

The clinical practice patterns and use of research evidence by Australian occupational therapists working with clients experiencing neurocognitive impairments has not been surveyed for nearly 10 years. This survey aimed to evaluate the current status of occupational therapy practice and evidence use and provide recommendations for ongoing evidence translation.

METHODS

An online survey of occupational therapists working in Australia was conducted over four months targeting registered clinicians working with adults experiencing neurocognitive impairments.

RESULTS

191 occupational therapists from a wide range of clinical practice areas, with a significant level of experience completed the survey. Functional retraining (n = 180, 94%), compensatory training (n = 173, 91%) and task/environmental modifications (n = 161, 84%) were the most commonly reported intervention techniques, while more targeted interventions such as context-sensitive training (n = 54, 28%), positive behaviour supports (n = 42, 22%) and metacognitive strategy training (n = 37, 19%) were used less frequently. Half the respondents were aware of current research evidence and suggested a wide range of strategies supporting evidence translation. Traditional barriers of limited time, access and skills to interpret research were also reported.

CONCLUSION

Consistent with earlier surveys most occupational therapists continue to use a functional/compensatory approach to cognitive rehabilitation, with an increasing number of therapists using specialist cognitive interventions. The current challenge for occupational therapists is embedding specialist techniques into occupation-based intervention. Knowledge translation and implementation strategies will be a critical component to achieving this.

Unique Features of the INESSS-ONF Rehabilitation Guidelines for Moderate to Severe Traumatic Brain Injury: Responding to Users' Needs

OBJECTIVE

Traumatic brain injury (TBI) clinical practice guidelines are a potential solution to rapidly expanding literature. The project objective was to convene experts to develop a unique set of TBI rehabilitation recommendations incorporating users' priorities for format and implementation tools including indicators of adherence.

METHODS

The Guidelines Adaptation & Development Cycle informed recommendation development. Published TBI recommendations were identified and tabulated. Experts convened to adapt or, where appropriate, develop new evidence-based recommendations. These draft recommendations were validated by systematically reviewing relevant literature. Surveys of experts and target users were triangulated with strength of evidence to identify priority topics.

RESULTS

The final recommendation set included a rationale, implementation tools (algorithms/adherence indicators), key process indicators, and evidence summaries, and were divided in 2 sections: Section I: Components of the Optimal TBI Rehabilitation System (71 recommendations) and Section II: Assessment and Rehabilitation of Brain Injury Sequelae (195 recommendations). The recommendations address top priorities for the TBI rehabilitation system: (1) intensity/frequency of interventions; (2) rehabilitation models; (3) duration of interventions; and (4) continuity-of-care mechanisms. Key sequelae addressed (1) behavioral disorders; (2) cognitive dysfunction; (3) fatigue and sleep disturbances; and (4) mental health.

CONCLUSION

This TBI rehabilitation guideline used a robust development process to address users' priorities.

The Speech-Language Pathologists' Role in Mild Traumatic Brain Injury for Middle and High School-Age Children: Viewpoints on Guidelines From the Centers for Disease Control and Prevention

Purpose The Centers for Disease Control and Prevention (CDC) recently released guidelines for rehabilitation professionals regarding the care of children with mild traumatic brain injury (mTBI). Given that mTBI impacts millions of children each year and can be particularly detrimental to children in middle and high school age groups, access to universal recommendations for management of postinjury symptoms is ideal. Method This viewpoint article examines the CDC guidelines and applies these recommendations directly to speech-language pathology practices. In particular, education, assessment, treatment, team management, and ongoing monitoring are discussed. In addition, suggested timelines regarding implementation of services by speech-language pathologists (SLPs) are provided. Specific focus is placed on adolescents (i.e., middle and high school-age children). Results SLPs are critical members of the rehabilitation team working with children with mTBI and should be involved in education, symptom monitoring, and assessment early in the recovery process. SLPs can also provide unique insight into the cognitive and linguistic challenges of these students and can serve to bridge the gap among rehabilitation and school-based professionals, the adolescent with brain injury, and their parents. Conclusion The guidelines provided by the CDC, along with evidence from the field of speech pathology, can guide SLPs to advocate for involvement in the care of adolescents with mTBI. More research is needed to enhance the evidence base for direct assessment and treatment with this population; however, SLPs can use their extensive knowledge and experience working with individuals with traumatic brain injury as a starting point for post-mTBI care.

Clinical and cost effectiveness of memory rehabilitation following traumatic brain injury: a pragmatic cluster randomized controlled trial

OBJECTIVE

To evaluate the clinical and cost effectiveness of a group-based memory rehabilitation programme for people with traumatic brain injury.

DESIGN

Multicentre, pragmatic, observer-blinded, randomized controlled trial in England.

SETTING

Community.

PARTICIPANTS

People with memory problems following traumatic brain injury, aged 18-69 years, able to travel to group sessions, communicate in English, and give consent.

INTERVENTIONS

A total of 10 weekly group sessions of manualized memory rehabilitation plus usual care (intervention) vs. usual care alone (control).

MAIN MEASURES

The primary outcome was the patient-reported Everyday Memory Questionnaire (EMQ-p) at six months post randomization. Secondary outcomes were assessed at 6 and 12 months post randomization.

RESULTS

We randomized 328 participants. There were no clinically important differences in the primary outcome between arms at six-month follow-up (mean EMQ-p score: 38.8 (SD 26.1) in intervention and 44.1 (SD 24.6) in control arms, adjusted difference in means: -2.1, 95% confidence interval (CI): -6.7 to 2.5, p = 0.37) or 12-month follow-up. Objectively assessed memory ability favoured the memory rehabilitation arm at the 6-month, but not at the 12-month outcome. There were no between-arm differences in mood, experience of brain injury, or relative/friend assessment of patient's everyday memory outcomes, but goal attainment scores favoured the memory rehabilitation arm at both outcome time points. Health economic analyses suggested that the intervention was unlikely to be cost effective. No safety concerns were raised.

CONCLUSION

This memory rehabilitation programme did not lead to reduced forgetting in daily life for a heterogeneous sample of people with traumatic brain injury. Further research will need to examine who benefits most from such interventions.

Current practice of cognitive rehabilitation following traumatic brain injury: An international survey

Traumatic brain injury (TBI) is a global public health issue, frequently resulting in impairments in the cognitive domains of attention, information processing speed, memory, executive function, and communication. Despite the importance of rehabilitating cognitive difficulties, and the release of clinical practice guidelines (CPGs) for cognitive rehabilitation, little is known about current clinician practice. This study aimed to explore current international clinician practice of cognitive rehabilitation. One hundred and fifteen English-speaking allied health professionals, including neuropsychologists and occupational therapists, from 29 countries outside Australia, were surveyed online about their current practice and reflections on cognitive rehabilitation. Both cognitive retraining and functional compensation approaches to cognitive rehabilitation were commonly utilized. Clinicians mostly targeted deficits in attention and executive functioning with retraining interventions, whilst memory deficits were mostly targeted with compensatory interventions. Clinicians were aware of and utilized various resources for cognitive rehabilitation, including CPGs. Clinicians considered the client's social support network, client engagement and motivation in rehabilitation, multidisciplinary team collaboration, and goal setting and implementation as highly impactful factors on the success of cognitive rehabilitation interventions. Whilst practice is broadly consistent with current CPG recommendations, addressing facilitating factors can further optimize client outcomes and quality of life following TBI.

Detection of text-based social cues in adults with traumatic brain injury

OBJECTIVES

Written text contains verbal immediacy cues-word form or grammatical cues that indicate positive attitude or liking towards an object, action, or person. We asked if adults with moderate-severe traumatic brain injury (TBI) would respond to these cues, given evidence of TBI-related social communication impairments.

METHODS

Sixty-nine adults with TBI and 74 healthy comparison (HC) peers read pairs of sentences containing different types of immediacy cues (e.g., speaker A said "these Canadians" vs. B said "those Canadians.") and identified which speaker (A or B) had a more positive attitude towards the underlined entity (Task 1); and pairs of sentences comprised of a context sentence (e.g., Fred is asked, "Did you visit Joan and Sue?") and a statement sentence (Fred says, "I visited Sue and Joan.") and were asked to indicate how much Fred liked or disliked the underlined words (Task 2).

RESULTS

HC group scores were significantly higher on Task 1, indicating more sensitivity to cues. On Task 2, TBI and HC group ratings differed across cue types and immediacy types, and the TBI group appeared to have less sensitivity to these cues.

CONCLUSIONS

Findings suggest that TBI-related impairments may reduce sensitivity to subtle social cues in text.

Social communication following traumatic brain injury part 2: Identifying effective treatment ingredients

PURPOSE

Social communication deficits are a severely debilitating aspect of traumatic brain injury (TBI), and there is strong clinical and research interest in how social communication interventions work for this population. Informed by a companion paper targeting assessment of social communication impairments post-TBI, this paper reviews relevant treatment theories and provides an inventory of social communication treatment components.

METHOD

We completed a mapping review examining 17 articles from recent literature reviews and 4 updated articles from a literature search to identify treatment targets and ingredients using the Rehabilitation Treatment Specification System (RTSS).

RESULT

Social communication interventions are primarily based on behavioural and cognitive treatment theories. Common social communication treatment targets include changing skilled behaviours and cognitive or affective representations. We offer a menu of therapeutic ingredients and treatment considerations which represent the current state of social communication interventions.

CONCLUSION

By reviewing the social communication intervention literature through a theoretical lens, we identify which treatment targets are missing, which targets are being addressed, and which therapeutic ingredients (i.e. clinician activities) are recommended. A hypothetical case study is provided as a supplement to demonstrate how speech-language pathologists may integrate treatment theory, ingredients, and targets into clinical practice.

Comprehensive cognitive training improves attention and memory in patients with severe or moderate traumatic brain injury

Traumatic brain injury (TBI) leads to cognitive disorders, the most frequently affected functions being attention and memory. The present study aimed to investigate the effects of a cognitive rehabilitation program, consisting of individual and group interventions, on attention and memory in patients with TBI. Fifteen patients-in the postacute phase of recovery from moderate-to-severe TBI and subsequent cognitive disorders-were enrolled on a three-week waiting list and then underwent a three-week cognitive rehabilitation program. The patients were assessed using a set of five neuropsychological attention and memory tests. The patients and their caregivers were questioned to assess subjective changes in the everyday functioning of the former. The introduction of cognitive training was associated with improvement in one memory test and in two measures of attention. Mean effect size across all tests was higher over the period with treatment compared to the period without (d = 0.36 vs. 0.03). Both patients and caregivers reported significant improvements in everyday functioning (p < .05). There were no further improvements at the four-month follow-up assessment. A comprehensive program of cognitive rehabilitation may improve attention and memory, as well as everyday cognitive functioning, in patients with severe or moderate TBI.

Cognitive Rehabilitation Following Traumatic Brain Injury: A Survey of Current Practice in Australia

Background and Objective: As cognitive impairments represent the greatest impediment to participation following moderate–severe traumatic brain injury (TBI), cognitive rehabilitation is vital. Several sets of guidelines for cognitive rehabilitation have been published, including INCOG in 2014. However, little is known about current practice by therapists working with individuals with TBI. This study aimed to characterise current cognitive rehabilitation practices via an online survey of therapists engaged in rehabilitation in individuals with TBI.

Method: The survey documented demographic information, current cognitive rehabilitation practice, resources used to inform cognitive rehabilitation, and reflections on cognitive rehabilitation provided.

Results: The 221 Australian respondents were predominantly occupational therapists, neuropsychologists, and speech pathologists with an average 9 years of clinical experience in cognitive rehabilitation and TBI. Cognitive retraining and compensatory strategies were the most commonly identified approaches used in cognitive rehabilitation. Executive functioning was mostly targeted for retraining, whereas memory was targeted with compensatory strategies. Attentional problems were less frequently addressed. Client self-awareness, family involvement, team collaboration, and goal-setting were seen as important ingredients for success.

Conclusion: Clinical practice of cognitive rehabilitation in Australia is broadly consistent with guidelines. However, addressing the impediments to its delivery is important to enhance the quality of life for individuals with TBI.

Neurocognitive and Self-efficacy Benefits of Cognitive Remediation in Schizophrenia: A Randomized Controlled Trial

OBJECTIVES

The aim of this study was to evaluate the impact of computer-assisted "drill-and-strategy" cognitive remediation (CR) for community-dwelling individuals with schizophrenia on cognition, everyday self-efficacy, and independent living skills.

METHODS

Fifty-six people with schizophrenia or schizoaffective disorder were randomized into CR or computer game (CG) playing (control), and offered twenty 1-hr individual sessions in a group setting over 10 weeks. Measures of cognition, psychopathology, self-efficacy, quality of life, and independent living skills were conducted at baseline, end-group and 3 months following intervention completion.

RESULTS

Forty-three participants completed at least 10 sessions and the end-group assessment. Linear mixed-effect analyses among completers demonstrated a significant interaction effect for global cognition favoring CR (p=.028). CR-related cognitive improvement was sustained at 3-months follow-up. At end-group, 17 (77%) CR completers showed a reliable improvement in at least one cognitive domain. A significant time effect was evident for self-efficacy (p=.028) with both groups improving over time, but no significant interaction effect was observed. No significant effects were found for other study outcomes, including the functional measure.

CONCLUSIONS

Computer-assisted drill-and-strategy CR in schizophrenia improved cognitive test performance, while participation in both CR and CG playing promoted enhancements in everyday self-efficacy. Changes in independent living skills did not appear to result from CR, however. Adjunctive psychosocial rehabilitation is likely necessary for improvements in real-world community functioning to be achieved. (JINS, 2018, 24, 549-562).

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.