Needs and preferences for psychological interventions of people with motor neuron disease

Background: There is a lack of knowledge about what factors may impede or facilitate engagement in psychological interventions in people with motor neuron disease (pwMND) and how such interventions can be adapted to best meet the needs of this population. Objectives: To explore the needs and preferences of pwMND with respect to psychological interventions, and how best to adapt such interventions for pwMND. Methods: A series of semi-structured interviews ( n ¼ 22) and workshops ( n ¼ 3) were conducted with pwMND ( n ¼ 15), informal caregivers of pwMND ( n ¼ 10), and MND healthcare professionals ( n ¼ 12). These explored preferences and concerns that would need to be considered when delivering a psychological intervention for pwMND. Three areas were explored: (i) perceived factors that may hinder or facilitate pwMND engaging with psy- chological interventions; (ii) ways in which such interventions could be adapted to meet the individual needs of pwMND; and (iii) views regarding the main psychological issues that would need to be addressed. Workshops and interviews were audio recorded and transcribed and thematic analysis was used to inductively derive themes. Findings: Data could be classified within four overarching themes: unfamiliar territory; a series of losses; variability and difficulty meeting individual needs; and informal support. Conclusions : Flexibility, tailoring interventions to the individual needs of pwMND, and encouraging auton- omy are key attributes for psychological interventions with pwMND. Psychological interventions such as Acceptance and Commitment Therapy (ACT) could be acceptable for pwMND if adapted to their specific needs.


Introduction
Average life expectancy for people with motor neuron disease (pwMND) is 3-4 years after symptom onset and the disease progression is variable (1). As the onset of symptoms associated with motor neuron disease (MND) and its speed of progression are unpredictable, it can be difficult to anticipate future support needs. With no known treatment to stop or reverse disease progression, those diagnosed are required to continually adjust to new losses (2). This can have a negative effect on emotional wellbeing and self-esteem, as indicated by high prevalence rates of depression and anxiety (44 and 30%, respectively (3,4)) and greater risks of suicide in pwMND than in the general population (5,6).
Psychological interventions may be of benefit for those psychological distresses; however, there is insufficient evidence to support their effectiveness at present (7). Numerous barriers may interfere with engagement in psychological interventions, including: rate of deterioration in symptoms; hostile reactions from families and caregivers; belief that the diagnosis is incorrect; and perceptions that the therapeutic approach is not appropriate (8). Furthermore, those with communication difficulties may require the support of a communication device (e.g. light writer or Eye Gaze). Though these have great potential to improve the lives of those who experience communication difficulties, they can also present technical barriers if faulty, incorrectly set up or running low on battery (9) and could potentially interfere with therapeutic delivery. Additionally, cognitive and behavioral changes present in up to 30-50% of pwMND (10)(11)(12) may impede engagement in psychological interventions. For example, executive dysfunction could reduce the ability to follow therapeutic discussions that involve abstract thinking such as thinking about the future.
Research on attitudes and preferences of pwMND toward treatment have primarily focused on decision making with respect to medical interventions, such as noninvasive ventilation and percutaneous endoscopic gastrostomy (13), as well as assistive technology and home adaptations (14). Perceptions of control, reassurance, and trust have been found to be important in the ability of pwMND to engage with healthcare services (15). Nevertheless, how or why pwMND choose to accept and engage with psychological interventions has not been reported. Consequently, there have been calls for further research to understand how healthcare services can meet the psychological needs of pwMND (13).
At present, there is a lack of knowledge about individual preferences for psychological interventions among pwMND, what factors may impede or facilitate engagement in such interventions, and how psychological interventions can be adapted to best meet the needs of pwMND. Consequently, the aim of this study was to explore the needs and preferences of pwMND with respect to psychological interventions, and how such interventions can be adapted for this population.

Inclusion/exclusion criteria
Participants were aged 18 and over and had a diagnosis of definite, probable or laboratory-supported probable familial or sporadic amyotrophic lateral sclerosis (ALS) using the World Federation of Neurology's El Escorial criteria (16), or variants of MND including Primary Lateral Sclerosis and Progressive Bulbar Palsy. Those with a self-or informant-reported diagnosis of dementia or lacking capacity to consent to participate in the study (as assessed by a member of the research team using standard research procedures) were excluded. Caregivers were required to be a current or former informal caregiver of a person with MND. Lastly, healthcare professionals were required to have current or previous experience of working with pwMND. All participants who took part provided fully informed written consent.

Recruitment of participants
Potential participants, who met the inclusion/exclusion criteria, were identified and approached by clinicians through the UK Motor Neuron Disease Clinical Studies Group (a network of MND clinicians involved in research studies in the UK; http:// www.mndcsg.org.uk), or responded to leaflets, posters or online advertisements via the Motor Neurone Disease Association, local community support groups and the Sheffield MND Research Advisory Group (a Patient and Public Involvement group). Purposive sampling was conducted as much as possible to select participants with a range of characteristics that might be expected to influence attitudes toward psychological interventions for pwMND (sex, time since diagnosis, caregiver relationship, and clinical profession). Recruitment continued until data saturation was achieved and new data were easily accommodated within the themes.

Data collection
Demographic data were collected at screening (see Table 1). In-depth semi-structured interviews and workshops (i.e. a discussion group facilitated by a member of the research team) were conducted with pwMND (n ¼ 15), informal caregivers of pwMND (n ¼ 10), and healthcare professionals who work with this population (n ¼ 12). The number of participants was deemed appropriate in order to address the research question and achieve saturation (17). Interviews (n ¼ 22) and workshops (n ¼ 3) were either conducted face-to-face (in participants' homes or in a meeting room at University College London [UCL]), or via telephone, individually or in a group, and verbally or via written responses, depending on each participant's preferences, communication needs, and geographical location.
Interviews and workshops were conducted by KW (n ¼ 21) and RG (n ¼ 4). The interviewers used a semi-structured topic guide for the interviews and workshops which were used flexibly, following the concerns of participants as they arose (see Supplementary Table 1). Topics explored included (i) facilitators/barriers to engagement in talking therapy for pwMND; (ii) general adaptations to talking therapy for pwMND; (iii) psychological or emotional issues for pwMND; and (iv) promoting talking therapy to pwMND. Each observed 1-2 of the other's interviews and workshops to ensure consistency. The interviewer encouraged participants to identify priorities for discussion and to use examples to illustrate their concerns. Interviews lasted approximately 45 mins (range 22-94 min), while workshops lasted approximately 65 min (range 56-72 min). All participants received a £10 voucher upon completion.

Data analysis
Interviews and workshops were audio recorded, transcribed verbatim, and anonymized to maintain confidentiality. Interview notes, including impressions of key topics and how participants found the interviews and workshops, were used to contextualize the analysis. Using NVivo version 11 to help manage the data, inductive thematic analysis (18) was conducted to develop a theoretical framework around the needs and preferences of pwMND with respect to psychological aA former carer of a person with MND also had a recent diagnosis of progressive muscular atrophy, but preferred to answer the questions from the perspective of a carer as they considered themselves to be too early in the disease course to comment from the perspective of a person with MND.
interventions. Constant comparison (19) was used to delineate similarities and differences between lower level codes and grouped into themes. The themes were then verified and refined as the data collection and analysis progressed. KW and JL read and coded all transcripts, which was then checked by VL. Data are presented across the participant groups, and similarities and discrepancies are highlighted where relevant.

Ethical considerations
The study was approved by the UCL Research Ethics Committee (ref. 12213/001).

Study findings
Data were organized into four overarching themes: (i) unfamiliar territory; (ii) a series of losses; (iii) disease variability and difficulty meeting individual needs; and (iv) informal support. Table 2 presents these themes and sub-themes with example quotes from participants. Each of the themes has implications for engagement in psychological interventions, which are presented in Table 3.

Unfamiliar territory
All participants across the sample felt that there is a lack of understanding and knowledge about the disease among the general population and particularly non-MND healthcare professionals, often explaining this by describing MND as a "rare disease". Societal awareness of MND was strongly considered to be lower than for other life limiting conditions, with cancer a common reference point. PwMND reported a tendency for comparisons to be made with Stephen Hawking, while others were acutely consciously of the stigma associated with MND, noting that friends and family were often reluctant to discuss the condition. The perceived lack of understanding about the disease was felt to compound feelings of isolation. Individuals indicated that they would value the opportunity to speak openly about living with MND with healthcare professionals who have sufficient knowledge of the illness. A common view among pwMND and caregivers was that MND healthcare professionals did not provide adequate information regarding the condition or sources of support at diagnosis. However, others explained that they had received adequate literature, but actively avoided it as they did not feel ready to accept the diagnosis at that time. Participants across the sample acknowledged that healthcare professionals may struggle to find the right time to approach pwMND about engaging in psychological interventions due to the prevalence of denial and avoidance of the prognosis. Some pwMND and caregivers felt they would be more likely to engage in psychological services which were recommended by people with the same condition.
A number of female caregivers and healthcare professionals felt there may be additional difficulties engaging men in psychological interventions, suggesting that men in particular can struggle due to losses in status and threat to their role of "breadwinner". Equally, it was acknowledged that this only increased the need for psychological support in this group.
A recurring theme across participant groups was the challenge of forging a new identity as someone with MND, especially in the absence of clear information or advice about the condition.

A series of losses
A recurring theme was the sense of loss experienced by pwMND, which was evident in multiple domains, including physical functioning, mobility, independence, future hopes and dreams, social relationships and identify (see Table 2). It was noted that people experience different losses at different time points due to the variability of symptoms experienced in MND. Yet the losses experienced across these domains were commonly considered to reflect a loss of control over their lives and the pwMND felt they had no choice but to accept them. Some of the participants discussed living a life within the constraints of what is possible and adapting to their diagnosis. Nevertheless, it was apparent that growing fears and anxieties regarding the prognosis made it difficult for many pwMND to live in the present moment.
Anger, frustration, uncertainty, and hopelessness were strongly associated with the sense of loss in MND. Feelings of embarrassment were commonly reported and were most prevalent amount those with speech and communication difficulties. " … they get angry and they find it hard to discuss, but they do when you get to know them, they get angry because they see people who have, they would say, frankly, abused their health, and, and they're not getting MND". (Healthcare professional, 046, F, 60 years) "They find it embarrassing even if it's only in front of family. I mean, there are very few of us, as much as we love our nearest and dearest, would want them to be wiping our, you know, spit off our chins". (Healthcare professional, 040, F, 64 years) (2c) Coping strategies (denial & avoidance) "MND patients, I find a lot of them have problems with accepting it. We see them right from the beginning, they're quite in denial. They'll be, like, oh, at least they're not as bad as so-and-so, trust me.  isn't it, if you meet people with the same illness who are further on, and you think, I wish I hadn't seen that". (Healthcare professional, 020, F, 45 years) "Some people absolutely love it, for everything to be online and everything to be under their control and their time frame as well so they can choose when to dip in and out of the forum when they're feeling up to it". (Person with MND, 002, F, 60 years) (4b) Caregivers and family "Well I think for therapy in general I think it's important to bring the significant other on board with it, they don't necessarily need to be part of it but actually I think one of the biggest influences on habits and communication and getting involved with stuff are family or significant others and if they buy into it seems to make it a bit easier for all". (Healthcare professional, 038, M, 53 years) " … for patients who have familial MND. And it's the concern for their children. If they, you know, have familial MND and they've already got children." (Healthcare professional, 010, F, 44 years) "MND doesn't just affect the person it affects the entire family". (Caregiver, 027, F, 56 years) (4c) Caregiver burden "Sometimes all patients can be quite selfish in terms of, you know, look at me. I've decided to do this thing and, you know, not quite realize it's trampling over their caregiver's plan to be a person or what have you … ".
(Caregiver, 035, M, 37 years) "Well, I think that is a huge point about being a burden, especially with the men again. I think you know they want to look after their families and they want to be the one to do things and they do, they hate being a burden". (Caregiver, 030, F, 74 years) Explore current coping strategies with the person with MND, the consequences of these strategies (i.e. the costs and benefits of them), and whether they could be doing anything differently. Emphasize the person with MND learning new skills to manage difficult thoughts, emotions and physical sensations in order that they can engage in the things that are important and that matter to them (i.e. their values) throughout the psychological intervention. Note: Subthemes in Table 2 correspond with those presented in Table 3.
Loss or impairment of speech was also closely linked to perceived negative changes in pwMND's body image and sense of identity. Caregivers commonly linked embarrassment to social withdrawal which was seen to further impact on the person with MND's sense of identity and wellbeing. Other common coping strategies included denial and avoidance. Participants across the sample felt that finding ways to reassert control into the lives of pwMND would have a positive impact on their wellbeing and quality of life. Caregivers and healthcare professionals suggested equipping pwMND and caregivers with skills and knowledge of the disease and how to best live their life with the condition, as well as encouraging and supporting autonomy and goal setting. Participants also stressed the importance of finding value in the here and now and planning for the future in order to lessen the feelings of hopelessness and regain control over the diagnosis.

Variability and difficulty meeting individual needs
A recurring theme throughout the interviews was variability. Participants stressed that pwMND have different symptoms, rates of progression, experiences, and needs. There was agreement across the sample that the delivery of any psychological intervention for pwMND would need to be flexible due to the nature of the disease. Relying on others to attend appointments or the need for special equipment (e.g. communication devices) was considered as practical barriers to participating in psychological interventions. Psychological interventions delivered at home or through video conferencing were suggested as a method to overcome these barriers. Healthcare professionals also raised the issue of memory problems that can be experienced by pwMND. It was suggested that text reminders of appointments and providing written information could be helpful for those experiencing difficulties with their memory.
Those with communication difficulties reflected on their experience of feeling forgotten about with respect to the provision of psychological interventions for pwMND. Participants explained that their communication difficulties are not always catered for, and they feel they do not have a voice and are not being heard by non-MND healthcare services.

Informal support
Various types of support were reported, including that from peers, family members, and formal caregivers. A large number of healthcare professionals emphasized the importance of peer support from other pwMND. Professionals highlighted many benefits, including sharing experiential knowledge.
Contrastingly, pwMND commented on their reluctance to engage with peers due to the fear of being confronted with the progression of MND. Nevertheless, there was agreement among the participants there was value in online peer-support groups as these would provide flexibility in attendance (as pwMND could attend online when they wanted), which would lessen the burden on caregivers.
Caregivers and healthcare professionals discussed the benefits of engaging family members or caregivers in the sessions as they would be able to help with equipment, communication and encouraging overall engagement. However, some pwMND stated that they would feel uncomfortable with family members or caregivers attending the sessions with them as they may not feel able to fully discuss their feelings and concerns for the future.
PwMND commented on having to rely on caregivers and family support throughout their diagnosis in order to attend appointments, take medication and for day-to-day personal care. This was strongly associated with fears of being a burden on loved ones and anxiety around how family members would cope after their death. Concerns about how to approach conversations regarding familial MND were also mentioned. Finally, concerns were expressed about caregivers' wellbeing and the challenges of meeting their own needs and goals, by both caregivers and healthcare professionals.

Discussion
This study highlights the perceived barriers of and facilitators to uptake and engagement in psychological interventions in pwMND, as well as their needs and preferences for such interventions. A number of the identified themes and sub-themes highlighted in Table 2 are consistent with previous research, as detailed below.
With respect to the theme "Unfamiliar territory", a lack of awareness of MND in the general population and non-MND services has previously been explored (20). This has also been linked to pwMND not wanting to engage with available healthcare services (21). Training non-MND healthcare professionals, including psychological therapists, about MND may help to overcome these barriers. The sub-theme "Finding the right time" is consistent with previous studies that have reported the frustration that can arise when people with ALS are offered help when it is not needed or wanted (20) and linked denial of the diagnosis and prognosis to disengagement from MND care teams (22). This can make it challenging for healthcare professionals to approach pwMND about psychological interventions and highlights the need to revisit any refusals to engage in psychological interventions, as this decision may change as an individual's circumstances change.
The theme "A series of losses" identified the range of emotions and physical losses pwMND experience throughout the disease course and their impact on wellbeing. The sub-theme "Feelings of loss" was strongly linked to pwMND feeling that they have no choice but to accept the losses. This is consistent with previous evidence which has shown that pwMND feel forced to accept and adapt to the losses experienced due to MND (23). Encouraging patient autonomy in psychological interventions, such as in the content and format of sessions, could allow a person with MND to reassert some level of control they feel they are losing due to the disease process (24,25). Additionally, helping pwMND to let go of futile struggles with experiences or situations that cannot be controlled in order to focus on the things that are important and matter to them may positively impact on their wellbeing.
The theme "Disease variability and difficulty meeting individual needs" highlights some of the practical barriers to psychological interventions e.g. symptoms. Psychological interventions delivered via videoconferencing were suggested as a way to overcome practical barriers that are associated with mobility. There is some evidence to suggest that psychological interventions delivered by videoconference or teleconference are not inferior to treatment provided in person in the general population (26). However, whether this is the same for pwMND remains to be determined.
With respect to the theme "Informal support", loss of independence requires pwMND to become increasingly dependent on their caregivers, which may increase an individual's fears of being a burden on their caregiver. Caregiver burden has been found to increase as the disease progresses (27) and it has been reported that caregivers' own expectations and priorities are shaped by the needs of pwMND (28). Adapting therapy to involve caregivers might be beneficial in addressing concerns about being a burden. Table 3 highlights a number of implications for the development and delivery of psychological interventions for pwMND that follow on from the themes and sub-themes identified in this study. These implications point toward the value of interventions that have the scope to help a person: (i) learn new skills for managing understandable difficult thoughts and emotions (e.g. in relation to progressive losses, fears about meeting others with MND, etc.); (ii) increase personally meaningful behavior through practical, achievable goal setting guided by what is important and matters to them (i.e. their values); (iii) distinguish between what can and cannot be controlled, let go of futile struggles with experiences that cannot be controlled, and re-focus energy on personally meaningful behavior; and (iv) increase awareness of their experiences in the here and now. One such intervention is acceptance and commitment therapy (ACT), which is a novel alternative to conventional forms of psychotherapy such as cognitive behavioral therapy (CBT) . It has been argued that it may be particularly beneficial for those living in objectively difficult or immutable situations such as chronic or life-limiting conditions (29,30). It uses a combination of behavioral change and motivation-based techniques, in addition to mindfulness-and acceptance-based techniques, to help people engage in personally meaningful activity in the presence of understandable difficult emotions and thoughts. Supporting this, focusing on what can be realistically achieved rather than what has been lost and practicing mindfulness awareness have been reported as successful strategies for coping with symptoms and everyday problems in pwMND (20,(31)(32)(33).

Research recommendations
Further research is required in order to, first, determine whether psychological interventions are beneficial for improving psychological wellbeing in pwMND and, second, to identify whether adapting psychological interventions to meet the individual preferences of pwMND can positively impact on uptake and engagement. Studies could also assess the benefits of including caregivers in the interventions, both to pwMND and to caregivers themselves. Finally, studies could explore the impact of potential moderating factors such as cognitive and communication difficulties on engagement and treatment outcomes.

Strengths and limitations
This research identifies preferences for psychological interventions among pwMND and provides valuable insights into the barriers to and facilitators of engagement in psychological interventions, as well as the clinical implications of these. A limitation of the study is that due to communication difficulties, some participants completed the interviews by writing their responses as they were not able to engage in face-to-face interviews. Therefore, they were not able to take part in the same interview conditions. However, including these participants is also a strength of the study as 80-95% of pwMND will experience speech difficulties in the later stages of the disease (34); including data from those currently experiencing these symptoms provides a valuable insight into their experiences and needs. Another limitation is that although purposive sampling was used to select participants with a range of characteristics, we were unable to recruit pwMND and caregivers aged less than 50, those from ethnic minority groups and those with lower levels of education, within the time constraints of the study. Therefore, it cannot be assumed that the findings of this study and hence implications for psychological interventions apply to these groups.

Conclusions
Although a range of barriers to and facilitators of engagement in psychological interventions have been identified, it is evident that allowing for flexibility, tailoring interventions to the individual needs of pwMND, and encouraging autonomy are key attributes for psychological interventions with pwMND. It is important to note that a person's preferences and needs may change throughout the progression of the disease and, therefore, it is important for psychological interventions and therapists to be flexible in order to accommodate this.