Coping and psychological well-being among persons with relapsing-remitting multiple sclerosis: The role of perceived self-efficacy.

OBJECTIVE: To explore self-efficacy as a possible mediator in the relationship between adaptive coping and psychological well-being (PWB) in persons with relapsing-remitting multiple sclerosis (RRMS). METHOD: 174 persons with RRMS (91% Female) completed an online survey consisting of psychosocial questionnaires. The COPE Inventory was used to create an adaptive coping composite that accounts for the relative contributions of both active and avoidant coping. Self-efficacy was measured using the General Self-Efficacy Scale. The Ryff Psychological Well-Being Scales captured several domains of PWB: Positive relations with others, autonomy, purpose in life, environmental mastery, self-acceptance, and personal growth. The SPSS PROCESS macro was used to test whether self-efficacy mediated the association between adaptive coping and each PWB subscale, using 5,000 bootstrap samples to estimate confidence intervals. RESULTS: In each mediational model, adaptive coping was significantly associated with each PWB subscale and self-efficacy (all p's ≤ 0.001). Self-efficacy was also significantly associated with each PWB subscale (p ≤ 0.001). After controlling for self-efficacy, the associations between adaptive coping and positive relations with others (indirect effect = 0.021, 95% CI [0.011, 0.033]) and autonomy (indirect effect = 0.019, 95% CI [0.011, 0.028]) became non-significant. The separate associations between adaptive coping and purpose in life (p = .004), self-acceptance (p = .026), and personal growth (p < .001) remained significant, despite controlling for self-efficacy. CONCLUSIONS: Self-efficacy fully mediated the relationships between adaptive coping and positive relations with others and autonomy in our sample of persons with RRMS. Interventions aimed at increasing adaptive coping skills and self-efficacy may improve relations with others and autonomy among persons with MS.

Multiple sclerosis is associated with differences in semantic memory structure.

OBJECTIVE: Although language is often considered to be largely intact in multiple sclerosis (MS), word-finding difficulties are a common complaint. Recent work suggests that declines in language are not solely the result of motoric and cognitive slowing that is most strongly associated with MS. Network science approaches have been effectively used to examine network structure as it relates to clinical conditions, aging, and language. The present study utilizes a network science approach to investigate whether individuals with MS exhibit less interconnected and resilient semantic networks compared to age-matched neurotypical peers. METHOD: We used semantic fluency data from 89 participants with MS and 88 neurotypical participants to estimate and analyze the semantic network structure for each participant group. Additionally, we conducted a percolation analysis to examine the resilience of each network. RESULTS: Network measures showed that individuals with MS had lower local and global clustering coefficients, longer average shortest path lengths, and higher modularity values compared to neurotypical peers. Small-worldness, network portrait divergence measures, and community detection analyses were consistent with these results and indicated that macroscopic properties of the two networks differed and that the semantic network for individuals with MS was more fractured than the neurotypical peer network. Moreover, a spreading activation simulation and percolation analysis suggested that the semantic networks of individuals with MS are less flexible and activation degrades faster than those of age-matched neurotypical participants. CONCLUSIONS: These differing semantic network structures suggest that language retrieval difficulties in MS partially result from decline in language-specific factors. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Associations between Social Support and Cognitive Performance among Persons with MS.

BACKGROUND: Social support is a protective factor against cognitive decline in the general population. However, the relationship between social support and cognitive functioning among persons with multiple sclerosis (MS) is not well understood. OBJECTIVE: The present study aimed to investigate the associations between different aspects of social support and cognitive performance among persons with MS. METHODS: A volunteer sample of 60 persons with MS completed the Medical Outcomes Study Support Social Survey 5-item short form (MSSS-5) and the Social Network Index (SNI). Cognitive functioning was assessed through a virtually-administered neuropsychological battery. Multiple linear regressions were conducted to examine the associations between social support measures and cognitive performance. RESULTS: In models adjusting for level of premorbid functioning, both perceived social support (i.e., to what extent one receives assistance from their social network; p = .002) and total size of social network (i.e., total number of people one regularly talks to; p = .002) were significant predictors of processing speed/executive functioning with moderate effect sizes. However, when we accounted for employment status in a post hoc analysis, the association between social network size and processing speed/executive functioning became statistically insignificant, while the relationship between perceived social support and processing speed/executive functioning remained significant (p = .002). CONCLUSIONS: Greater perceived social support is associated with better performance on processing speed/executive functioning measures among persons with MS, independent of effects from premorbid functioning and employment status. Maintaining a strong social support network may be an important factor in optimizing cognitive health in MS.

Keeping it together: The role of social integration on health and psychological well-being among individuals with multiple sclerosis.

Research indicates that people with multiple sclerosis (MS) are more likely to report poorer health and well-being than their peers without MS. Fortunately, it is also known that an individual's social and lifestyle factors play a great role on maintaining and promoting one's health and overall well-being. The present study aimed to examine the role that social integration and social support, in particular have on health and psychological well-being (PWB) among individuals with MS. One hundred and eighty three individuals with MS completed measures of social and lifestyle factors, personality, physical and mental health, MS disease symptomatology and PWB. Cross sectional, regression analyses were conducted to determine the role of social and other lifestyle factors (e.g., diet/exercise) on health and PWB. A subset of this sample (108) completed a follow-up assessment. Longitudinal analyses of this sample were also conducted. Consistent with previous findings, the presence of social integration and social support were significant predictors of health and PWB even when taking into account other lifestyle factors (i.e., diet/exercise, substance use, smoking), cardiovascular risk, demographics (i.e., gender, age, education, relationship status) and personality. The role of social integration and support on health and PWB is well established. Present findings confirmed these associations among individuals with MS. These findings suggest that social integration and social support should be a crucial part of MS management and that further interventional studies aimed at improving social integration and reducing social isolation are warranted in an effort to promote and maintain overall health and well-being.

Multiple Sclerosis Performance Test (MSPT): Normative study of 428 healthy participants ages 18 to 89.

BACKGROUND: The Multiple Sclerosis Performance Test (MSPT) is a self-administered, iPad®-based, computerized system for quantifying neuroperformance (cognition, upper and lower extremity motor function, and vision) in patients with multiple sclerosis (MS). OBJECTIVE: The goal of the study is to provide regression-based norms for the four MSPT test modules to adjust for the influence of demographic variables (age, education, and sex). METHODS: The MSPT was administered to 428 cognitively intact, healthy adults (ages 18 to 89 years). Participants were recruited to achieve a demographically stratified sample from four geographically diverse United States testing sites. RESULTS: The amount of shared variance in test performance accounted for by demographic variables was 18-23% for an upper extremity motor test, 31% for a walking speed test, 32% for a low contrast visual acuity test, and 48% for a cognitive test. All four test modules were significantly influenced by age (linear and non-linear effects) and education. Additionally, sex influenced performance on the cognitive and walking speed tests. CONCLUSION: This study provides regression-based equations that can enhance the clinical interpretation of MSPT scores by adjusting for the potential influences of age, education, and sex.

Coping Strategies and Their Impact on Quality of Life and Physical Disability of People with Multiple Sclerosis.

The aim of the study is to investigate the impact of coping strategies on Health-Related Quality of Life (HRQoL) and physical disability assessed with the Expanded Disability Status Scale (EDSS) of people with multiple sclerosis (pwMS). PwMS were asked to focus on "MS diagnosis" as the core stressor. One hundred eight pwMS completed the Coping Responses Inventory-Adult form (CRI-Adult), the Multiple Sclerosis Quality of Life-29 (MSQoL-29), and the Depression Anxiety Stress Scale-21 (DASS-21). Multiple regression analyses (first block: EDSS, disease duration, and DASS-21) revealed that physical MSQoL-29 was positively associated with Alternative Rewards and negatively with Resigned Acceptance of the CRI-Adult. The mental MSQoL-29 was positively associated with Problem-Solving and negatively with Emotional Discharge. The Expanded Disability Status Scale (EDSS; first block: disease duration and general distress) was negatively associated with Positive Reappraisal. The Analysis of covariance (ANCOVA) revealed that pwMS with lower physical disability showed higher scores in Positive Reappraisal and lower scores in Emotional Discharge than pwMS with a higher physical disability. Coping strategies can play a role on HRQoL and physical disability in pwMS above and beyond EDSS, disease duration, and general distress. Psychological interventions should be considered in pwMS since the time of diagnosis to promote engagement in adaptive coping strategies and contrast the maladaptive ones.

The adapted symbol digit modalities test: Examining the impact of response modality.

BACKGROUND: Information processing speed is often impaired in neurological disorders, as well as with healthy aging. Thus, being able to accurately assess information processing speed is of high importance. One of the most commonly used tests to examine information processing speed is the Symbol Digit Modalities Test (SDMT), which has been shown to have good psychometric properties. OBJECTIVES: The current study aims to examine differences between two response modalities, written and oral, on the performance of an adapted version of the Symbol Digit Modalities Test. METHODS: Ninety-nine individuals completed two alternate forms of the adapted version of the SDMT (aSDMT). Participants were instructed to complete the five lines of the task as quickly and accurately as possible. On one form participants were instructed to provide their response in writing and on the other one, orally. Form and response modality (oral vs. written) were counterbalanced to control for practice effects. RESULTS: On average, there was a significant difference between response modalities, such that participants needed more time to respond when the response modality was written. For both response modalities, time to complete each line of stimuli decreased as the task progressed. While changes in response time on the first four lines of stimuli on the oral version were not found, there was a substantial improvement in response time on the fifth line. In contrast, on the written version a gradual learning effect was observed, in which response time was the slowest on the first two lines, an intermediate response time was noted on line 3, and the fastest response time was achieved on lines four and five. CONCLUSION: The current study demonstrates that response modality, oral versus written, can significantly impact performance efficiency (the length of time it takes to complete a task), but not accuracy (total correct responses), on a new adaptation of the SDMT, the aSDMT.

The role of language ability in verbal fluency of individuals with multiple sclerosis.

BACKGROUND: While cognitive deficits in memory and processing speed have been well-documented in individuals with multiple sclerosis (MS), language is largely considered to be intact. Verbal fluency deficits observed in MS are often attributed to impaired processing speed and executive functions rather than language ability. The current study evaluates the contribution of various cognitive factors to verbal fluency including language ability, oral-motor speed, processing speed, and executive functions. METHODS: We analyzed pre-existing data from seventy-four (74) individuals with MS who completed a battery of neuropsychological tests designed to assess individual ability for various cognitive factors. We conducted linear multiple regression analyses with letter and category verbal fluency as outcome variables and performance on other cognitive domains (e.g., processing speed, executive functioning) as predictors. RESULTS: Both vocabulary and processing speed predicted letter fluency while only vocabulary predicted category fluency. These findings suggest that the observed verbal fluency deficits in MS may reflect both impaired language ability and processing speed. CONCLUSION: We propose that further research on language ability in MS is needed to determine if comprehensive neuropsychological test batteries for persons with MS should include tests of language ability to fully understand the cognitive profile of any given patient. Given the importance of language ability, it may be necessary to conduct a more thorough assessment of language in individuals with MS who experience a deficit in this domain.

Relationship between sensory processing patterns, trait anxiety, and health-related quality of life in multiple sclerosis.

Sensory processing patterns may predict health-related quality of life. This study examined this relationship in persons with multiple sclerosis considering trait anxiety as a potential mediator. Participants (n = 94) completed the Adolescent/Adult Sensory Profile and other self-report measures at one time point. Sensory processing patterns were significantly associated with trait anxiety and health-related quality of life. Direct and indirect effects of sensory processing patterns were identified on physical health-related quality of life, and indirect effects were identified on mental health-related quality of life. Facilitating adaptive behavioral responses to sensory information may promote health-related quality of life in this population.

Progressive resistance exercise training and changes in resting-state functional connectivity of the caudate in persons with multiple sclerosis and severe fatigue: A proof-of-concept study.

Fatigue is one of the most disabling symptoms of multiple sclerosis (MS). While progressive resistance training (PRT) has been shown to reduce fatigue in persons with MS, it is not clear why these reductions occur. One hypothesis is that PRT may induce functional changes to the caudate, a region highly implicated in MS fatigue. The aim of the current study was to study the effects of PRT on overall fatigue impact and resting-state functional connectivity of the caudate in persons with MS reporting severe fatigue. Participants were semi-randomly assigned to either a 16-week home-based PRT (n = 5) or stretching control (n = 5) condition. Both groups demonstrated reductions in overall fatigue impact (main effect of time: F = .84, d = .65). Significant group × time interactions were found, with the PRT group demonstrating post-training increases in functional connectivity between the caudate and left inferior parietal (F = 66.0, p < .001), bilateral frontal (both p < .001), and right insula (F = 21.8, p = .002) regions compared to the stretching group. Furthermore, greater post-training increases in functional connectivity between the caudate and left inferior parietal region were associated with greater decreases in cognitive fatigue (r = -.52) specifically. This study provides initial evidence for the caudate as a potential neural substrate for the beneficial effects of PRT on fatigue in persons with MS.

Role of positive lifestyle activities on mood, cognition, well-being, and disease characteristics in multiple sclerosis.

Multiple sclerosis (MS) is a neurological condition associated with a wide variety of physical, cognitive, and mood-related symptoms. While disease-modifying treatment has been shown to reduce the severity and frequency of MS symptom relapses, engagement in certain daily activities holds promise as an adjunctive treatment to better manage disease sequelae. The present study sought to determine whether healthy nutritional choices, exercise, and social/intellectual engagement impacts functioning in individuals with MS. Two hundred and forty-eight (248) MS participants completed a questionnaire assessing factors related to cognitive health (Cognitive Health Questionnaire; CHQ). They also endorsed measures assessing disease symptoms and management, mood, and well-being/quality of life. A measure of information processing speed was administered to a subset of participants. Findings indicated that a previously derived CHQ factor comprised of healthy nutritional habits and exercise items was associated with less fatigue, better sleep, reduced pain, and improved mood and disease management. A factor with items assessing social and intellectual engagement correlated with mood, disease management, and well-being. Endorsement of items in both CHQ factors was associated with better information processing speed. Subsequent regression analyses indicated that education and mood were most predictive of nutritional habits and exercise, while MS self-efficacy was particularly associated with engagement in social and intellectual activities. In sum, these findings suggest that self-reported engagement in healthy lifestyle habits has far-reaching effects on multiple aspects of daily living and disease management in MS.

Should I stay or should I go? A prospective investigation examining individual factors impacting employment status among individuals with multiple sclerosis (MS).

BACKGROUND: Rates of unemployment among individuals with multiple sclerosis (MS) are as high as 80%. While several factors for such high rates of unemployment have been identified, they do not account for the majority of the variance. OBJECTIVE: This study examines person-specific factors such as personality and coping, which may better account for individuals leaving the workforce. METHOD: Forty individuals with MS (20 considering reducing work hours or leaving the workforce and 20 remaining employed) were matched on age, gender, education, disease duration, and disease course, and administered a comprehensive survey of factors purported to be related to employment status. RESULTS: Based on multiple, logistic regression analyses certain disease factors and person-specific factors differentiate those who are considering leaving work or reducing work hours and those staying employed. In particular, those expressing the need to reduce work hours or leaving the workforce reported more fatigue, anxiety, depression, and use of behavioral disengagement as a means of coping. In contrast, those staying employed reported greater levels of extraversion, self-efficacy, and use of humor as a means of coping. Together, fatigue, use of humor, and use of behavioral disengagement as a means of coping were the most significant factors, accounting for 44% of the variance. CONCLUSIONS: Findings suggest that greater consideration be given to these factors and that interventions tailored to address these factors may assist individuals with MS staying employed and/or making appropriate accommodations.

Assessment of depression in epilepsy: the utility of common and disease-specific self-report depression measures.

OBJECTIVES: Depression is common in epilepsy, with rates ranging from 20 to 55% in most samples and reports as high as 70% in patients with intractable epilepsy. However, some contend that depression may be over- and/or under-reported and treated in this population. This may be due to the use of common self-report depression measures that fail to take into account the overlap of disease and depressive symptoms and also the host of side effects associated with antiepileptic medication, which may also be construed as depression. METHODS: The present study examined the utility of common self-report depression measures and those designed specifically for the medically ill, including a proposed new measure, to determine which may be more appropriate for use among people with epilepsy. RESULTS: We found that common self-report depression measures are useful for screening depression in epilepsy, particularly with a raised cutoff for one, with sensitivities ranging from .91 to .96. A measure designed for the medically ill obtained the greatest specificity of .91, suggesting its use as a diagnostic tool with a slightly raised cutoff. The positive likelihood ratio of this latter measure was 8.76 with an overall classification accuracy of 88%. CONCLUSIONS: Assessment of depression in epilepsy can be improved when utilizing self-report measures that better differentiate disease symptoms from neurovegetative symptoms of depression (e.g. fatigue, sleep disturbance). This was demonstrated in the present study. Clinical implications are discussed.

The Perceived Deficits Questionnaire: Perception, Deficit, or Distress?

BACKGROUND: Cognitive dysfunction affects approximately 43% to 70% of individuals with multiple sclerosis (MS) and is an important determinant of several functional outcomes in MS and quality of life. Brief neuropsychological test batteries have been developed specifically for use in MS and are widely used to aid clinicians in assessing levels of cognitive impairment in MS. Neuropsychologists and neurologists also frequently use briefer screening measures, such as the Perceived Deficits Questionnaire (PDQ), to assist in determining whether a more extensive neuropsychological evaluation is warranted. However, despite the ease of such measures, the relationship between self-report and objective cognitive impairment has been inconsistent, at best. Moreover, factors such as depression, fatigue, anxiety, and personality have been found to be more related to reports of cognitive difficulties. The purpose of the present study was to clarify the relationship between subjective cognitive concerns and objective cognitive impairment while accounting for related symptoms. METHODS: We examined the association of self-reported cognitive concerns on the PDQ with objective cognitive measures, as well as depression, anxiety, fatigue, and self-efficacy. RESULTS: There was no relationship between self-reported cognitive concerns and objective performance. Rather, reports on the PDQ were more correlated with reports of depression, anxiety, fatigue, and self-efficacy. CONCLUSIONS: Depression and poor self-efficacy can contribute to reports of cognitive difficulties. Effective treatment to improve these factors seems warranted given the impact of perceived cognitive impairment on outcomes in MS and the potential for more accurate self-reports.

Depression in multiple sclerosis: The utility of common self-report instruments and development of a disease-specific measure.

The ultimate objective of the present investigation was to improve the detection of depression in multiple sclerosis (MS) by comparing common self-report depression measures to a new, modified measure, which takes into account the contribution that symptoms of MS may have on individuals' reports. There has been a longstanding concern regarding the accurate assessment of depression in MS, particularly with regard to the overlap of MS symptomatology and neurovegetative depression symptoms on self-report questionnaires, which may lead to an overdiagnosis of depression in MS. To address these difficulties, we previously proposed a "trunk and branch" of depression in MS. This model allows for the delineation of what symptoms are most reflective of depression in MS. By identifying these symptoms, it was possible to develop a modified Beck Depression Inventory (BDI) in which only the items found to be most related to depression in MS are included in the new measure, the MS Specific BDI (MS-BDI). We compared this measure to common self-report instruments (Beck Depression Inventory-Second Edition, BDI-II; Beck Depression Inventory-Fast Screen, BDI-FS; Chicago Multiscale Depression Inventory, CMDI). Results suggest that cutoffs of 4 on the BDI-FS and 23 on the CMDI Mood subscale are most useful when screening for depression in MS, with a sensitivity for both of 100%, while a cutoff of 19 on the BDI-II, a cutoff of 22 on the CMDI Evaluative scale, and a cutoff of 8 on the MS-BDI had high specificities, suggesting they can be used as to assist in diagnosing depression in MS.

Fatigue in multiple sclerosis: a look at the role of poor sleep.

Fatigue is a frequent and debilitating symptom of multiple sclerosis (MS) with rates ranging anywhere from 53 to 90%. Despite its high prevalence and grave impact on overall functioning and quality of life, the accurate definition, quantification, and etiology of fatigue have plagued the MS literature and clinical care for decades. With regard to its etiology, MS-related fatigue has been construed as being either primary or secondary. Primary fatigue is purported to be related to centrally mediated processes of the disease whereas secondary fatigue is thought to be a result of the host of factors that may accompany MS (e.g., depression, sleep disturbance). The present paper focuses on secondary fatigue and the role of sleep disturbance, in particular. Despite the intuitive assumption that sleep problems could contribute to fatigue, sleep problems in MS have gone fairly unrecognized until recently. The present paper provides a brief review of the literature pertaining to the prevalence and nature of sleep problems in MS as well as their association with fatigue. A replication of this author's and others work is presented further demonstrating that sleep disturbance is a significant contributor to fatigue in MS when taking into account disease variables, depression, and sleep disturbance.

Cognitive impairment in multiple sclerosis: An 18 year follow-up study.

BACKGROUND: Cognitive impairment occurs in 40-65% of patients with multiple sclerosis (MS). Less is known about the rate and pattern of cognitive decline over the course of the illness. OBJECTIVE: To examine long-term changes in cognition among patients enrolled in the phase III clinical trial of intramuscular interferon beta-1a (IM IFNß-1a). METHODS: Twenty-two patients underwent a longitudinal investigation comparing neuropsychological test performance at study entry and 18-year follow-up. RESULTS: Over the 18 year interval, significant declines were observed on measures of information processing speed, simple and complex auditory attention, episodic learning and memory, and visual construction. Nine patients (41%) were found to be cognitively impaired at study entry. At follow-up 13 patients (59%) were cognitively impaired. While both the impaired and unimpaired patients at baseline experienced declines on these measures, only one measure, the Symbol Digit Modalities Test (SDMT), demonstrated a group (cognitively impaired versus intact at baseline)×time interaction. This interaction was characterized by a steeper decline in the unimpaired than the impaired group at baseline. CONCLUSIONS: Over an 18 year period, our results suggest that cognitive impairment in MS progresses, with declines being most evident on measures known to be most sensitive to MS-related cognitive difficulties both cross-sectionally and longitudinally.

Unemployment in multiple sclerosis: the contribution of personality and disease.

BACKGROUND: Multiple sclerosis (MS) is the leading cause of neurological disability among young and middle-aged adults. One of the most devastating consequences of MS in this relatively young population group is unemployment. Although certain demographic and disease factors have been associated with employment, few studies have examined the contribution of person-specific factors, such as personality. OBJECTIVE: The goal of this study was to determine the extent to which personality, demographics, and clinical measures contribute to unemployment in MS. METHOD: A total of 101 individuals with MS who were enrolled in a clinical trial on cognition underwent a brief neuropsychological battery and completed questionnaires related to vocation, mood, fatigue, and personality. Neurological impairment was measured with the Expanded Disability Status Scale (EDSS). RESULTS: Employment status was related with disease duration, MS subtype, level of neurological impairment, fatigue, performance on measures assessing information processing speed (Symbol Digit Modalities Test (SDMT)), learning and memory (Selective Reminding Test), and the personality characteristic of persistence. Based on a forward logistic regression analysis, EDSS, SDMT, and persistence were the strongest predictors of employment status. CONCLUSIONS: These findings underscore the importance of personality on outcomes in MS and point to the need for more clinical attention and research in this area.

Cognitive and neurobehavioral features in multiple sclerosis.

Multiple sclerosis (MS) is the most common nontraumatic neurological condition of early and middle adulthood. Cognitive and neurobehavioral problems associated with this disorder are common. Approximately 50% of MS patients experience lifetime clinical depression, and at least 50% will experience significant cognitive difficulties. Fatigue is also extremely common and disabling in MS and appears to be associated with sleep problems and primary neurological features, in addition to secondary factors, including depression and pain. Quality of life is affected in MS by all of these factors and is an especially salient issue given that patients often live for many years following diagnosis. In this article, we explore the literature on cognitive and neurobehavioral features in MS, provide a commentary on the state of the literature and make suggestions for research directions over the next 5 years that would move the field forward significantly.

Assessment of depression in three medically ill, elderly populations: Alzheimer's disease, Parkinson's disease, and stroke.

Prevalence rates of depression in medically ill elderly people are strikingly high. In particular, the prevalences of depression at any given time in Alzheimer's, Parkinson's, and stroke are as high as 87%, 75%, and 79%, respectively. Proper detection and management of depression in primary care is imperative. The present review examines the risk factors, peculiarities, and etiologies of depression in these populations. We suggest that certain features of depression be considered in assessing depression in these populations and provide guidelines for distinguishing depression from medical, psychosocial, and physical complaints common in elderly people. Additionally, we explore the use of self-report instruments of depression and provide guidelines regarding the specific measures and cutoffs most appropriate for use with these populations. To this end, we hope that readers acquire a greater appreciation for the experience of depression of those suffering from these neurological disorders to aid in their assessment.