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Requier F, Demnitz-King H, Whitfield T, Klimecki O, Marchant NL, Collette F. The Effect of Meditation-Based Interventions on Patients with Fatigue Symptoms: A Systematic Review and Meta-Analysis. Psychol Belg 2023; 63:64-81. [PMID: 37358949 PMCID: PMC10289041 DOI: 10.5334/pb.1182] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 06/07/2023] [Indexed: 06/28/2023] Open
Abstract
Persistent fatigue constitutes a prevalent and debilitating symptom in several diseases. The symptom is not effectively alleviated by pharmaceutical treatments, and meditation has been proposed as a non-pharmacological intervention. Indeed, meditation has been shown to reduce inflammatory/immune problems, pain, stress, anxiety and depression which are associated with pathological fatigue. This review synthesizes data from randomized control trials (RCTs) that explored the effect of meditation-based interventions (MeBIs) on fatigue in pathological conditions. Eight databases were searched from inception to April 2020. Thirty-four RCTs met eligibility criteria and covered six conditions (68% cancer), 32 of which were included in the meta-analysis. The main analysis showed an effect in favor of MeBIs compared to control groups (g = 0.62). Separate moderator analyses assessing control group, pathological condition, and MeBI type, highlighted a significantly moderating role of the control group. Indeed, compared to actively controlled studies, studies using a passive control group were associated with a statistically significantly more beneficial impact of the MeBIs (g = 0.83). These results indicate that MeBIs alleviate pathological fatigue and it seems that the studies with a passive control group showed a greater effect of MeBI on the reduction of fatigue compared to studies using active control groups. However, the specific effect of meditation type and pathological condition should be analyzed with more studies, and there remains a need to assess meditation effects on different types of fatigue (i.e., physical and mental) and in additional conditions (e.g., post-COVID-19).
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Affiliation(s)
- Florence Requier
- GIGA-CRC In Vivo Imaging, Université de Liège, Bâtiment B30, Allée du Six Août, 8, Sart Tilman, 4000 Liège, Belgium
- Department of Psychology, Cognition and Behavior, University of Liège, Liège, Belgium
| | | | - Tim Whitfield
- Division of Psychiatry, University College London, London, UK
| | - Olga Klimecki
- Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland
- Clinical Psychology and Behavioral Neuroscience, Faculty of Psychology, Technische Universität Dresden, Dresden, Germany
| | | | - Fabienne Collette
- GIGA-CRC In Vivo Imaging, Université de Liège, Bâtiment B30, Allée du Six Août, 8, Sart Tilman, 4000 Liège, Belgium
- Department of Psychology, Cognition and Behavior, University of Liège, Liège, Belgium
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Möller MC, Berginström N, Ghafouri B, Holmqvist A, Löfgren M, Nordin L, Stålnacke BM. Cognitive and mental fatigue in chronic pain: cognitive functions, emotional aspects, biomarkers and neuronal correlates-protocol for a descriptive cross-sectional study. BMJ Open 2023; 13:e068011. [PMID: 36990481 PMCID: PMC10069545 DOI: 10.1136/bmjopen-2022-068011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
Abstract
INTRODUCTION Chronic pain (CP) is one of the most frequently presenting conditions in health care and many patients with CP report mental fatigue and a decline in cognitive functioning. However, the underlying mechanisms are still unknown. METHODS AND ANALYSIS This study protocol describes a cross-sectional study aimed at investigating the presence of self-rated mental fatigue, objectively measured cognitive fatigability and executive functions and their relation to other cognitive functions, inflammatory biomarkers and brain connectivity in patients with CP. We will control for pain-related factors such as pain intensity and secondary factors such as sleep disturbances and psychological well-being. Two hundred patients 18-50 years with CP will be recruited for a neuropsychological investigation at two outpatient study centres in Sweden. The patients are compared with 36 healthy controls. Of these, 36 patients and 36 controls will undergo blood sampling for inflammatory markers, and of these, 24 female patients and 22 female controls, between 18 and 45 years, will undergo an functional MRI investigation. Primary outcomes are cognitive fatigability, executive inhibition, imaging and inflammatory markers. Secondary outcomes include self-rated fatigue, verbal fluency and working memory. The study provides an approach to study fatigue and cognitive functions in CP with objective measurements and may demonstrate new models of fatigue and cognition in CP. ETHICS AND DISSEMINATION The study has been approved by the Swedish Ethics Review Board (Dnr 2018/424-31; 2018/1235-32; 2018/2395-32; 2019-66148; 2022-02838-02). All patients gave written informed consent to participate in the study. The study findings will be disseminated through publications in journals within the fields of pain, neuropsychology and rehabilitation. Results will be spread at relevant national and international conferences, meetings and expert forums. The results will be shared with user organisations and their members as well as relevant policymakers. TRIAL REGISTRATION NUMBER NCT05452915.
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Affiliation(s)
- Marika C Möller
- Clinical Sciences, Karolinska Institutet, Stockholm, Sweden
- Rehabilitation Medicine, Danderyd University Hospital, Stockholm, Sweden
| | - Nils Berginström
- Psychology, Umeå Universitet, Umeå, Sweden
- Community Medicine and Rehabilitation, Rehabilitation Medicine, Umeå Universitet, Umeå, Sweden
| | - Bijar Ghafouri
- Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Anna Holmqvist
- Clinical Sciences, Karolinska Institutet, Stockholm, Sweden
- Rehabilitation Medicine, Danderyd University Hospital, Stockholm, Sweden
| | - Monika Löfgren
- Clinical Sciences, Karolinska Institutet, Stockholm, Sweden
- Rehabilitation Medicine, Danderyd University Hospital, Stockholm, Sweden
| | - Love Nordin
- Neurobiology, Caring Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Britt-Marie Stålnacke
- Community Medicine and Rehabilitation, Rehabilitation Medicine, Umeå Universitet, Umeå, Sweden
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Fatigue and perceived fatigability, not objective fatigability, are prevalent in people with post-COVID-19. Exp Brain Res 2023; 241:211-219. [PMID: 36462035 PMCID: PMC9735153 DOI: 10.1007/s00221-022-06518-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/26/2022] [Indexed: 12/04/2022]
Abstract
Persistent symptoms after acute COVID-19 infection, termed post-COVID-19 fatigue, occur in 44-70% of patients. Characterizing fatigue in this population is vital to determine the etiology of post-COVID-19 fatigue symptoms and to assess the effectiveness of potential interventions. The purpose of this study was to assess differences in perceived and objective fatigability between people with post-COVID-19 symptoms (N = 29, 20 females) and people who had COVID-19 but are not experiencing persistent symptoms (N = 20, 12 females). Perceived fatigability, fatigue, pain, and quality of life were assessed with the Fatigue Severity Scale (FSS), Fatigue Assessment Scale (FAS), Visual Analog Scale for Pain (VAS), and the EQ-5D-5L, respectively. Objective fatigability was evaluated with torque and work fatigue indices (FI-T and FI-W), calculated via an isokinetic fatigue task. The results revealed that, the subjects with post-COVID-19 symptoms had significantly higher FAS (p < 0.01), FSS (p < 0.01), VAS (p < 0.01), and EQ-5D-5L VAS (p < 0.01) scores compared to subjects without post-COVID-19 symptoms, indicating greater fatigue and perceived fatigability, increased pain, and worse quality of life. However, there were no differences between the two groups for the FI-Ts (all p ≥ 0.07) or FI-W (all p ≥ 0.08), indicating no differences in objective fatigability. This study found that people with post-COVID-19 symptoms have increased fatigue and perceived fatigability, but not objective fatigability, compared to subjects without post-COVID-19 symptoms.
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Behrens M, Gube M, Chaabene H, Prieske O, Zenon A, Broscheid KC, Schega L, Husmann F, Weippert M. Fatigue and Human Performance: An Updated Framework. Sports Med 2023; 53:7-31. [PMID: 36258141 PMCID: PMC9807493 DOI: 10.1007/s40279-022-01748-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2022] [Indexed: 01/12/2023]
Abstract
Fatigue has been defined differently in the literature depending on the field of research. The inconsistent use of the term fatigue complicated scientific communication, thereby limiting progress towards a more in-depth understanding of the phenomenon. Therefore, Enoka and Duchateau (Med Sci Sports Exerc 48:2228-38, 2016, [3]) proposed a fatigue framework that distinguishes between trait fatigue (i.e., fatigue experienced by an individual over a longer period of time) and motor or cognitive task-induced state fatigue (i.e., self-reported disabling symptom derived from the two interdependent attributes performance fatigability and perceived fatigability). Thereby, performance fatigability describes a decrease in an objective performance measure, while perceived fatigability refers to the sensations that regulate the integrity of the performer. Although this framework served as a good starting point to unravel the psychophysiology of fatigue, several important aspects were not included and the interdependence of the mechanisms driving performance fatigability and perceived fatigability were not comprehensively discussed. Therefore, the present narrative review aimed to (1) update the fatigue framework suggested by Enoka and Duchateau (Med Sci Sports Exerc 48:2228-38, 2016, [3]) pertaining the taxonomy (i.e., cognitive performance fatigue and perceived cognitive fatigue were added) and important determinants that were not considered previously (e.g., effort perception, affective valence, self-regulation), (2) discuss the mechanisms underlying performance fatigue and perceived fatigue in response to motor and cognitive tasks as well as their interdependence, and (3) provide recommendations for future research on these interactions. We propose to define motor or cognitive task-induced state fatigue as a psychophysiological condition characterized by a decrease in motor or cognitive performance (i.e., motor or cognitive performance fatigue, respectively) and/or an increased perception of fatigue (i.e., perceived motor or cognitive fatigue). These dimensions are interdependent, hinge on different determinants, and depend on body homeostasis (e.g., wakefulness, core temperature) as well as several modulating factors (e.g., age, sex, diseases, characteristics of the motor or cognitive task). Consequently, there is no single factor primarily determining performance fatigue and perceived fatigue in response to motor or cognitive tasks. Instead, the relative weight of each determinant and their interaction are modulated by several factors.
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Affiliation(s)
- Martin Behrens
- Department of Sport Science, Institute III, Otto-Von-Guericke University Magdeburg, Zschokkestraße 32, 39104, Magdeburg, Germany.
- Department of Orthopedics, Rostock University Medical Center, Rostock, Germany.
| | - Martin Gube
- Department of Sport Science, University of Rostock, Rostock, Germany
| | - Helmi Chaabene
- Department of Sports and Health Sciences, Faculty of Human Sciences, University of Potsdam, Potsdam, Germany
| | - Olaf Prieske
- Division of Exercise and Movement, University of Applied Sciences for Sports and Management Potsdam, Potsdam, Germany
| | - Alexandre Zenon
- Institut de Neurosciences Cognitives et Intégratives d'Aquitaine (INCIA)-UMR 5287, CNRS, University of Bordeaux, Bordeaux, France
| | - Kim-Charline Broscheid
- Department of Sport Science, Institute III, Otto-Von-Guericke University Magdeburg, Zschokkestraße 32, 39104, Magdeburg, Germany
| | - Lutz Schega
- Department of Sport Science, Institute III, Otto-Von-Guericke University Magdeburg, Zschokkestraße 32, 39104, Magdeburg, Germany
| | | | - Matthias Weippert
- Department of Sport Science, University of Rostock, Rostock, Germany
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Franzen S, van den Berg E, Bossenbroek W, Kranenburg J, Scheffers EA, van Hout M, van de Wiel L, Goudsmit M, van Bruchem-Visser RL, van Hemmen J, Jiskoot LC, Papma JM. Neuropsychological assessment in the multicultural memory clinic: Development and feasibility of the TULIPA battery. Clin Neuropsychol 2023; 37:60-80. [PMID: 35225154 DOI: 10.1080/13854046.2022.2043447] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neuropsychological assessment of culturally diverse populations is hindered by barriers in language, culture, education, and a lack of suitable tests. Furthermore, individuals from diverse backgrounds are often unfamiliar with being cognitively tested. The aim of this study was to develop a new neuropsychological test battery and study its feasibility in multicultural memory clinics. Composition of the TULIPA battery (Towards a Universal Language: Intervention and Psychodiagnostic Assessment) entailed a literature review and consultation with experts and individuals from diverse backgrounds. Feasibility was investigated by examining administration and completion rates and the frequency of factors complicating neuropsychological assessment in 345 patients from 37 countries visiting four multicultural memory clinics in the Netherlands. The test battery included existing tests such as the Cross-Cultural Dementia screening (CCD), Rowland Universal Dementia Assessment Scale (RUDAS), tests from the European Cross-Cultural Neuropsychological Test Battery, and newly developed tests. Completion rates for the test battery were generally high (82%-100%), except for CCD Dots subtest B (58%). Although tests of the "core" TULIPA battery were administered often (median: 6 of 7, IQR: 5-7), supplementary tests were administered less frequently (median: 1 of 9; IQR: 0-3). The number of administered tests correlated with disease severity (RUDAS, ρ=.33, adjusted p < .001), but not with other patient characteristics. Complicating factors were observed frequently, e.g. suboptimal effort (29%-50%), fatigue (29%), depression (37%-57%). The TULIPA test battery is a promising new battery to assess culturally diverse populations in a feasible way, provided that complicating factors are taken into account. Supplemental data for this article is available online at https://doi.org/10.1080/13854046.2022.2043447 .
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Affiliation(s)
- Sanne Franzen
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Esther van den Berg
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Willemijn Bossenbroek
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.,Department of Medical Psychology, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Judi Kranenburg
- Department of Internal Medicine, Haaglanden Medical Center, The Hague, The Netherlands
| | - Esther A Scheffers
- Department of Internal Medicine, Haaglanden Medical Center, The Hague, The Netherlands
| | - Moniek van Hout
- Department of Medical Psychology, Medisch Spectrum Twente, Enschede, The Netherlands
| | - Lotte van de Wiel
- Department of Medical Psychology, Maasstad Ziekenhuis, Rotterdam, The Netherlands
| | - Miriam Goudsmit
- Department of Psychiatry and Medical Psychology, OLVG, Amsterdam, The Netherlands
| | | | - Judy van Hemmen
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Lize C Jiskoot
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Janne M Papma
- Department of Neurology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
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6
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Taylor BK, Frenzel MR, Eastman JA, Wiesman AI, Wang YP, Calhoun VD, Stephen JM, Wilson TW. Reliability of the NIH toolbox cognitive battery in children and adolescents: a 3-year longitudinal examination. Psychol Med 2022; 52:1718-1727. [PMID: 33032665 PMCID: PMC8589010 DOI: 10.1017/s0033291720003487] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/15/2020] [Accepted: 09/07/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND The Cognitive Battery of the National Institutes of Health Toolbox (NIH-TB) is a collection of assessments that have been adapted and normed for administration across the lifespan and is increasingly used in large-scale population-level research. However, despite increasing adoption in longitudinal investigations of neurocognitive development, and growing recommendations that the Toolbox be used in clinical applications, little is known about the long-term temporal stability of the NIH-TB, particularly in youth. METHODS The present study examined the long-term temporal reliability of the NIH-TB in a large cohort of youth (9-15 years-old) recruited across two data collection sites. Participants were invited to complete testing annually for 3 years. RESULTS Reliability was generally low-to-moderate, with intraclass correlation coefficients ranging between 0.31 and 0.76 for the full sample. There were multiple significant differences between sites, with one site generally exhibiting stronger temporal stability than the other. CONCLUSIONS Reliability of the NIH-TB Cognitive Battery was lower than expected given early work examining shorter test-retest intervals. Moreover, there were very few instances of tests meeting stability requirements for use in research; none of the tests exhibited adequate reliability for use in clinical applications. Reliability is paramount to establishing the validity of the tool, thus the constructs assessed by the NIH-TB may vary over time in youth. We recommend further refinement of the NIH-TB Cognitive Battery and its norming procedures for children before further adoption as a neuropsychological assessment. We also urge researchers who have already employed the NIH-TB in their studies to interpret their results with caution.
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Affiliation(s)
- Brittany K. Taylor
- Department of Neurological Sciences, Cognitive Neuroscience of Development & Aging (CoNDA) Center, and the Center for Magnetoencephalography, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michaela R. Frenzel
- Department of Neurological Sciences, Cognitive Neuroscience of Development & Aging (CoNDA) Center, and the Center for Magnetoencephalography, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jacob A. Eastman
- Department of Neurological Sciences, Cognitive Neuroscience of Development & Aging (CoNDA) Center, and the Center for Magnetoencephalography, University of Nebraska Medical Center, Omaha, NE, USA
| | - Alex I. Wiesman
- Department of Neurological Sciences, Cognitive Neuroscience of Development & Aging (CoNDA) Center, and the Center for Magnetoencephalography, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yu-Ping Wang
- Department of Biomedical Engineering, Tulane University, New Orleans, LA, USA
| | | | | | - Tony W. Wilson
- Department of Neurological Sciences, Cognitive Neuroscience of Development & Aging (CoNDA) Center, and the Center for Magnetoencephalography, University of Nebraska Medical Center, Omaha, NE, USA
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Abstract
OBJECTIVE People with Multiple Sclerosis (PwMS) and healthy controls (HCs) were evaluated on cognitive variability indices and we examined the relationship between fatigue and cognitive variability between these groups. Intraindividual variability (IIV) on a neuropsychological test battery was hypothesized to mediate the group differences expected in fatigue. METHOD Fifty-nine PwMS and 51 HCs completed a psychosocial interview and battery of neuropsychological tests and questionnaires during a 1-day visit. Fatigue in this study was measured with the Fatigue Impact Scale (FIS), a self-report multidimensional measure of fatigue. IIV was operationalized using two different measures, a maximum discrepancy score (MDS) and intraindividual standard deviation (ISD), in two cognitive domains, memory and attention/processing speed. Two mediation analyses with group (PwMS or HCs) as the independent variable, variability composite (memory or attention/processing speed) measures as the mediators, total residual fatigue (after accounting for age) as the outcome, and depression as a covariate were conducted. The Baron and Kenny approach to testing mediation and the PROCESS macro for testing the strength of the indirect effect were used. RESULTS Results of a mediation analysis using 5000 bootstrap samples indicated that IIV in domains of both attention/processing speed and memory significantly mediated the effect of patient status on total residual fatigue. CONCLUSION IIV is an objective performance measure that is related to differences in fatigue impact between PwMS and HCs. PwMS experience more variability across tests of attention/processing speed and memory and this experience of variable performance may increase the impact of fatigue.
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Aoun Sebaiti M, Hainselin M, Gounden Y, Sirbu CA, Sekulic S, Lorusso L, Nacul L, Authier FJ. Systematic review and meta-analysis of cognitive impairment in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Sci Rep 2022; 12:2157. [PMID: 35140252 PMCID: PMC8828740 DOI: 10.1038/s41598-021-04764-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 11/23/2021] [Indexed: 12/17/2022] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is commonly associated with cognitive complaints. To bring out the neuropsychological symptomatology inherent to ME/CFS, we conducted a systematic review according to PRISMA and MOOSE guidelines of the literature through the analysis of 764 studies published between 1988 and 2019 by using PubMed Central website and Clarivate analytics platform. We performed a meta-analysis to delineate an idea of the neuropsychological profile inherent in ME/CFS. The clinical picture typically affects visuo-spatial immediate memory (g = - 0.55, p = 0.007), reading speed (g = - 0.82, p = 0.0001) and graphics gesture (g = - 0.59, p = 0.0001). Analysis also revealed difficulties in several processes inherent in episodic verbal memory (storage, retrieval, recognition) and visual memory (recovery) and a low efficiency in attentional abilities. Executive functions seemed to be little or not affected and instrumental functions appeared constantly preserved. With regard to the complexity and heterogeneity of the cognitive phenotype, it turns out that determining a sound clinical picture of ME/CFS cognitive profile must go through a neuropsychological examination allowing a complete evaluation integrating the notion of agreement between the choice and the number of tests and the complexity intrinsic to the pathology.
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Affiliation(s)
- Mehdi Aoun Sebaiti
- Neurology Department, Henri Mondor University Hospital, APHP, Créteil, France
- INSERM U955-Team Relaix, Faculty of Health, Paris Est-Creteil University, Créteil, France
- CRP-CPO, UR UPJV 7273, Université de Picardie Jules Verne, Amiens, France
| | - Mathieu Hainselin
- CRP-CPO, UR UPJV 7273, Université de Picardie Jules Verne, Amiens, France
| | - Yannick Gounden
- CRP-CPO, UR UPJV 7273, Université de Picardie Jules Verne, Amiens, France
| | - Carmen Adella Sirbu
- Central Military Emergency University Hospital, Titu Maiorescu University, Bucharest, Romania
- European Network On ME/CFS (EUROMENE), London, UK
| | - Slobodan Sekulic
- European Network On ME/CFS (EUROMENE), London, UK
- Department of Neurology, Faculty of Medicine Novi Sad, University of Novio Sad, Novio Sad, Serbia
| | - Lorenzo Lorusso
- European Network On ME/CFS (EUROMENE), London, UK
- Neurology and Stroke Unit, Neuroscience Dept - ASST- Lecco, Merate Hospital, Merate, LC, Italy
| | - Luis Nacul
- European Network On ME/CFS (EUROMENE), London, UK
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - François Jérôme Authier
- INSERM U955-Team Relaix, Faculty of Health, Paris Est-Creteil University, Créteil, France.
- European Network On ME/CFS (EUROMENE), London, UK.
- Neuromuscular Reference Center, Henri Mondor University Hospital, APHP, 51, Av. du Maréchal de Lattre de Tassigny, 94000, Créteil, France.
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Transdermal Electrical Neuromodulation for Anxiety and Sleep Problems in High-Functioning Autism Spectrum Disorder: Feasibility and Preliminary Findings. J Pers Med 2021; 11:jpm11121307. [PMID: 34945779 PMCID: PMC8704341 DOI: 10.3390/jpm11121307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/27/2022] Open
Abstract
Background: Autism spectrum disorder (ASD) is associated with anxiety and sleep problems. We investigated transdermal electrical neuromodulation (TEN) of the cervical nerves in the neck as a safe, effective, comfortable and non-pharmacological therapy for decreasing anxiety and enhancing sleep quality in ASD. Methods: In this blinded, sham-controlled study, seven adolescents and young adults with high-functioning ASD underwent five consecutive treatment days, one day of the sham followed by four days of subthreshold TEN for 20 min. Anxiety-provoking cognitive tasks were performed after the sham/TEN. Measures of autonomic nervous system activity, including saliva α-amylase and cortisol, electrodermal activity, and heart rate variability, were collected from six participants. Results: Self-rated and caretaker-rated measures of anxiety were significantly improved with TEN treatment as compared to the sham, with effect sizes ranging from medium to large depending on the rating scale. Sleep scores from caretaker questionnaires also improved, but not significantly. Performance on two of the three anxiety-provoking cognitive tasks and heart rate variability significantly improved with TEN stimulation as compared to the sham. Four of the seven (57%) participants were responders, defined as a ≥ 30% improvement in self-reported anxiety. Salivary α-amylase decreased with more TEN sessions and decreased from the beginning to the end of the session on TEN days for responders. TEN was well-tolerated without significant adverse events. Conclusions: This study provides preliminary evidence that TEN is well-tolerated in individuals with ASD and can improve anxiety.
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Spiegelberg N, Breuer S, Nielsen J, Saliger J, Montag C, Karbe H, Markett S. Cognitive Fatigue Predicts Cognitive Failure in Multiple Sclerosis Patients and Healthy Controls: A Case-Control Study. Arch Clin Neuropsychol 2021; 36:908-917. [PMID: 33316071 DOI: 10.1093/arclin/acaa118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 03/02/2020] [Accepted: 11/02/2020] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE Fatigue and cognitive deficits are frequent symptoms of multiple sclerosis (MS). However, the exact nature of their co-occurrence is not fully understood. We sought to determine the impact of cognitive and physical fatigue on subjective cognitive deficits in MS patients and healthy controls. METHODS Self-reports of fatigue (FSMC), depression (CES-D), cognitive deficits (CFQ), and personality traits (NEO-FFI, ANPS) among 30 MS inpatients and 30 healthy controls were analyzed using hierarchical regression models. The frequency of cognitive mistakes was used as the dependent variable and the extent of cognitive and physical fatigue as the independent variable. RESULTS Cognitive fatigue was the only unique and significant predictor of cognitive mistakes in both groups, explaining 13.3% of additional variance in the MS group after correcting for age, mood, and physical fatigue. Physical fatigue had no significant impact on cognitive mistakes. While age had an impact on cognitive mistakes and depression in healthy controls, this association was not significant in MS patients. Depression was significantly correlated with cognitive mistakes and cognitive fatigue in MS patients. CONCLUSIONS The interplay of cognitive fatigue and subjective cognitive impairment can be generalized, with the exception of the variables of age and depression, which were shown to have differing impacts on cognitive mistakes in MS patients and healthy controls, respectively. Cognitive fatigue was linked to cognitive mistakes even after correcting for overlapping items in MS patients only. Future research should further investigate the link between cognitive fatigue and attention lapses in daily life by using various objective assessments.
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Affiliation(s)
- Nora Spiegelberg
- Department of Cognitive Rehabilitation, Neurological Rehabilitation Centre Godeshöhe, Bonn, Germany.,Department of Psychology, Humboldt University, Berlin, Germany
| | - Svenja Breuer
- Department of Cognitive Rehabilitation, Neurological Rehabilitation Centre Godeshöhe, Bonn, Germany
| | - Jörn Nielsen
- Department of Cognitive Rehabilitation, Neurological Rehabilitation Centre Godeshöhe, Bonn, Germany
| | - Jochen Saliger
- Department of Cognitive Rehabilitation, Neurological Rehabilitation Centre Godeshöhe, Bonn, Germany
| | - Christian Montag
- Department of Molecular Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany.,neuSCAN Laboratory, The Clinical Hospital of the Chengdu Brain Science Institute and Key Laboratory for Neuroinformation, University of Electronic Science and Technology of China, Chengdu, China
| | - Hans Karbe
- Department of Cognitive Rehabilitation, Neurological Rehabilitation Centre Godeshöhe, Bonn, Germany
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Burgio F, Danesin L, Benavides-Varela S, Meneghello F, Butterworth B, Arcara G, Semenza C. Numerical activities of daily living: a short version. Neurol Sci 2021; 43:967-978. [PMID: 34164749 DOI: 10.1007/s10072-021-05391-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/07/2021] [Indexed: 10/21/2022]
Abstract
Specific impairments in numerical functions may cause severe problems in everyday life that cannot be inferred from the available scales evaluating instrumental activities of daily living. The Numerical Activities of Daily living (NADL) is a battery designed to assess the patient's performance in everyday activities involving numbers (Informal Test) and in more scholastic capacities (Formal Test). A downside of this battery is its duration (45 min). The aim of the present study is to build a shorter version of NADL to make it more suitable for clinical and research purposes. The shortening procedure involved only the Formal test, and followed two steps: (i) a correlation of subtests with the general scores, and (ii) an item-analysis within the subtests previously showing higher correlations. Correlations between NADL-Short and NADL original version, and the new cut-offs were calculated. Lastly, the relationship between NADL-Short and other brief cognitive screening tests used in the clinical practice was evaluated in neurological patients and healthy controls. The NADL-Short includes the original Informal Test and the shortened Formal Test. It is a quick and easy clinical tool (15 min) to assess numerical abilities applied to informal and formal situations. It correlates highly with the original battery (Kendall's tau greater than 0.6 across tasks) and the cut-offs correctly identify impaired performance (accuracy of 95% or above). Correlation analysis showed a low positive correlation between NADL-Short and other brief cognitive scales. These findings suggest that it is appropriate to use specific tools to make inferences about a person's numerical abilities.
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Affiliation(s)
- Francesca Burgio
- San Camillo Hospital, IRCCS, Via Alberoni 70, 30126, Venice, Italy.
| | - Laura Danesin
- San Camillo Hospital, IRCCS, Via Alberoni 70, 30126, Venice, Italy
| | - Silvia Benavides-Varela
- Department of Developmental Psychology and Socialization, University of Padova, Padua, Italy.,Department of Neuroscience (Padova Neuroscience Center), University of Padova, Padua, Italy
| | | | | | - Giorgio Arcara
- San Camillo Hospital, IRCCS, Via Alberoni 70, 30126, Venice, Italy
| | - Carlo Semenza
- Department of Neuroscience (Padova Neuroscience Center), University of Padova, Padua, Italy
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12
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Hsu WY, Cheng CH, Zanto TP, Gazzaley A, Bove RM. Effects of Transcranial Direct Current Stimulation on Cognition, Mood, Pain, and Fatigue in Multiple Sclerosis: A Systematic Review and Meta-Analysis. Front Neurol 2021; 12:626113. [PMID: 33763014 PMCID: PMC7982804 DOI: 10.3389/fneur.2021.626113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 02/10/2021] [Indexed: 12/29/2022] Open
Abstract
Background: The study aimed to evaluate the effects of transcranial direct current stimulation (tDCS) on cognition, mood disturbance, pain, and fatigue in people with multiple sclerosis (PwMS). Methods: A literature search was performed on articles published between January 1990 and May 2020 in Pubmed, Medline, and Web of Science using the following keywords and their abbreviation in combinations: multiple sclerosis and transcranial direct current stimulation. Mean effect size (ES) and 95% confidence interval were calculated for each domain of interest. Results: Seventeen articles with a total of 383 PwMS were included in this analysis. For cognition, a strong effect size was found for the trial administering the Symbol Digit Modalities Test (ES: 1.15), whereas trials applying the Attention Network Test showed a negative effect size of −0.49. Moderate to strong effect sizes were observed for mood disturbance (mean ES: 0.92), pain (mean ES: 0.59), and fatigue (mean ES: 0.60). Further subgroup analyses for MS-related fatigue showed that both high and low intensities of stimulation lead to nearly the same degree of favorable effects. More pronounced effects were observed in studies administering the Fatigue Severity Scale compared with studies using other fatigue measures such as the Modified Fatigue Impact Scale. Conclusion: These results provide preliminary evidence that tDCS has a favorable effect on cognitive processing speed, mood disturbance, pain, and fatigue in MS. However, the effects on cognition and fatigue vary based on the specific assessment used.
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Affiliation(s)
- Wan-Yu Hsu
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
| | - Chia-Hsiung Cheng
- Department of Occupational Therapy and Graduate Institute of Behavioral Sciences, Chang Gung University, Taoyuan, Taiwan.,Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan.,Laboratory of Brain Imaging and Neural Dynamics (BIND Lab), Chang Gung University, Taoyuan, Taiwan.,Department of Psychiatry, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Theodore P Zanto
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States.,Neuroscape, University of California, San Francisco, San Francisco, CA, United States
| | - Adam Gazzaley
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States.,Neuroscape, University of California, San Francisco, San Francisco, CA, United States.,Department of Psychiatry, University of California, San Francisco, San Francisco, CA, United States.,Department of Physiology, University of California, San Francisco, San Francisco, CA, United States
| | - Riley M Bove
- Department of Neurology, Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, United States
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13
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Numerical Activities of Daily Living - Financial: a short version. Neurol Sci 2021; 42:4183-4191. [PMID: 33543420 DOI: 10.1007/s10072-021-05047-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 01/06/2021] [Indexed: 10/22/2022]
Abstract
Financial capacity is the ability to manage money and finances according to a person's values and self-interests. In Italy, the first instrument specifically designed to assess financial capacity has recently been developed: the Numerical Activities of Daily Living - Financial (NADL-F). The aims of this study are (1) to prepare a shorter version of NADL-F and (2) to examine the relationship between the new short version and a measure of general cognitive functioning of comparable length, the MMSE. After an item analysis performed on NADL-F, the items presenting a higher internal consistency were selected. The resulting NADL-F Short is a reliable, easy to use, and quick to administer tool for assessing financial capacity both in clinical and legal practice. Correlation analysis showed a low positive correlation between four NADL-F Short tasks and the MMSE, for the healthy participants group. For the patient group, instead, a low-moderate correlation was found for all the NADL-F Short tasks, except one. Many participants scoring high in the MMSE (both healthy controls and neurological patients) showed low NADL-F Short scores. These findings suggest that it is not correct to use generic tools like the MMSE to make inferences on a person's financial capacity.
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14
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Robinson LK, McFadden SL. Distinguishing TBI Malingering and Fatigue Using Event-Related Potentials. J PSYCHOPHYSIOL 2020. [DOI: 10.1027/0269-8803/a000248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract. Poorer-than-expected performance on cognitive-behavioral tasks may indicate malingering, or it could be an outcome of fatigue, resulting in false positives when suboptimal task performance is used to flag individuals feigning or exaggerating symptoms of traumatic brain injury (TBI). The primary goal of this study was to examine the P3 event-related potentials (ERP) and behavioral outcomes associated with TBI malingering and fatigue, in order to distinguish between them. A secondary goal was to determine if history of TBI (hTBI) is associated with differences in fatigue, ERPs, or performance on a short-term memory task. Participants completed the Mental Fatigue and Related Symptoms (SR-MF) questionnaire and were interviewed to assess TBI history, then they completed a computerized “old/new” (match-mismatch) task while ERPs were recorded, under three conditions: Normal, Malinger, and Fatigue. Participants reported mild fatigue at the end of study, with no difference between individuals reporting a history of TBI ( n = 32) and healthy controls ( n = 47). Fatigue was associated with prolonged P3 latency but was otherwise indistinguishable from Normal. In contrast, Malinger was clearly distinguished from Normal by significantly lower accuracy, longer reaction times, reduced P3 amplitude on Match trials, and a smaller old/new ERP effect. Individuals with a history of TBI reported clinical levels of fatigue at baseline but did not differ significantly from healthy controls on any behavioral or ERP measure. The results support the use of behavioral and ERP measures to identify malingering, without concern over confounding effects of mild subjective fatigue, including mild fatigue induced by testing.
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15
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Anderson JFI, Jordan AS. An observational study of the association between sleep disturbance, fatigue and cognition in the post-acute period after mild traumatic brain injury in prospectively studied premorbidly healthy adults. Neuropsychol Rehabil 2020; 31:1444-1465. [PMID: 32558623 DOI: 10.1080/09602011.2020.1781665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The literature examining the relationship between sleep disturbance, fatigue, and cognition in premorbidly healthy civilian adults after mTBI is very limited. The current study aimed to investigate the relationships of sleep disturbance and fatigue with cognition while controlling for psychological distress and age. Using a prospective observational design, we assessed 60 premorbidly healthy individuals approximately 8 weeks after mTBI. Participants were assessed with the Pittsburgh Sleep Quality Index and the Multidimensional Fatigue Inventory as well as measures of speed of information processing, attention, memory, and executive function; depression and anxiety were also assessed. Findings revealed associations between sleep disturbance and cognition (r2 = .586, p < .001) as well as between fatigue and cognition (r2 = .390, p < .01), independent of the impact of psychological status and age. Associations were evident in the domains of processing speed, attention, and memory, but were most consistently apparent on measures of executive function. Greater sleep disturbance was most consistently associated with poorer cognitive function. Unexpectedly, higher levels of fatigue were associated with better cognitive function, which may be explained by the coping hypothesis. Given sleep interventions have been shown to improve sleep disturbance, these findings suggest that sleep intervention may also result in improved cognition after mTBI.
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Affiliation(s)
- Jacqueline F I Anderson
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Australia.,Senior Clinical Neuropsychologist, Psychology Department, The Alfred Hospital, Prahran, Australia
| | - Amy S Jordan
- Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Australia.,Institute for Breathing and Sleep, Austin Health, Heidelberg, Australia
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16
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Cognitive Fatigability is Independent of Subjective Cognitive Fatigue and Mood in Multiple Sclerosis. Cogn Behav Neurol 2020; 33:113-121. [PMID: 32496296 DOI: 10.1097/wnn.0000000000000228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Sustained cognitive testing is used to detect cognitive fatigability and is often considered a substitute for subjective cognitive fatigue (CF). However, the relationship between cognitive fatigability and subjective CF in people with multiple sclerosis (PwMS) remains undetermined. OBJECTIVE To explore potential associations between fatigability induced by sustained cognitive testing and subjective CF in PwMS. METHODS We gave 120 PwMS and 60 demographically matched, healthy individuals the Beck Depression Inventory-FastScreen (BDI-FS) to measure mood and the Modified Fatigue Impact Scale to measure CF. In addition, we used the Quotient ADHD Test, a sustained attention test, to measure cognitive fatigability. We also explored potential correlations between the individuals' performance on the sustained attention test and thalamic volume using recent MRI scans. RESULTS Forty-one (34.2%) of the PwMS exhibited cognitive fatigability. These 41 were found to be significantly older (P=0.006), had been diagnosed with the disease for longer (P=0.03), had higher scores (P<0.001) on the Expanded Disability Status Scale, and had reduced thalamic volume (P=0.04) compared with the 79 (65.8%) PwMS not exhibiting cognitive fatigability. The PwMS exhibiting cognitive fatigability scored similarly on the BDI-FS (P=0.21) and self-reported similar rates of CF (P=0.62) as the PwMS not exhibiting cognitive fatigability. CONCLUSION Cognitive fatigability induced by sustained cognitive testing is not an accurate clinical alternative to subjective CF. This study provides evidence to support cognitive fatigability and CF in PwMS as two distinct concepts.
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17
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Cognitive Fatigue in Multiple Sclerosis: An Objective Approach to Diagnosis and Treatment by Transcranial Electrical Stimulation. Brain Sci 2019; 9:brainsci9050100. [PMID: 31052593 PMCID: PMC6562441 DOI: 10.3390/brainsci9050100] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 04/29/2019] [Accepted: 04/30/2019] [Indexed: 01/03/2023] Open
Abstract
Cognitive fatigue is one of the most frequent symptoms in multiple sclerosis (MS), associated with significant impairment in daily functioning and quality of life. Despite its clinical significance, progress in understanding and treating fatigue is still limited. This limitation is already caused by an inconsistent and heterogeneous terminology and assessment of fatigue. In this review, we integrate previous literature on fatigue and propose a unified schema aiming to clarify the fatigue taxonomy. With special focus on cognitive fatigue, we survey the significance of objective behavioral and electrophysiological fatigue parameters and discuss the controversial literature on the relationship between subjective and objective fatigue assessment. As MS-related cognitive fatigue drastically affects quality of life, the development of efficient therapeutic approaches for overcoming cognitive fatigue is of high clinical relevance. In this regard, the reliable and valid assessment of the individual fatigue level by objective parameters is essential for systematic treatment evaluation and optimization. Transcranial electrical stimulation (tES) may offer a unique opportunity to manipulate maladaptive neural activity underlying MS fatigue. Therefore, we discuss evidence for the therapeutic potential of tES on cognitive fatigue in people with MS.
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18
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Teodoro T, Edwards MJ, Isaacs JD. A unifying theory for cognitive abnormalities in functional neurological disorders, fibromyalgia and chronic fatigue syndrome: systematic review. J Neurol Neurosurg Psychiatry 2018; 89:1308-1319. [PMID: 29735513 PMCID: PMC6288708 DOI: 10.1136/jnnp-2017-317823] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/24/2018] [Accepted: 04/10/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Functional cognitive disorder (FCD) describes cognitive dysfunction in the absence of an organic cause. It is increasingly prevalent in healthcare settings yet its key neuropsychological features have not been reported in large patient cohorts. We hypothesised that cognitive profiles in fibromyalgia (FM), chronic fatigue syndrome (CFS) and functional neurological disorders (FNDs) would provide a template for characterising FCD. METHODS We conducted a systematic review of studies with cognition-related outcomes in FM, CFS and FND. RESULTS We selected 52 studies on FM, 95 on CFS and 39 on FND. We found a general discordance between high rates of subjective cognitive symptoms, including forgetfulness, distractibility and word-finding difficulties, and inconsistent objective neuropsychological deficits. Objective deficits were reported, including poor selective and divided attention, slow information processing and vulnerability to distraction. In some studies, cognitive performance was inversely correlated with pain, exertion and fatigue. Performance validity testing demonstrated poor effort in only a minority of subjects, and patients with CFS showed a heightened perception of effort. DISCUSSION The cognitive profiles of FM, CFS and non-cognitive FND are similar to the proposed features of FCD, suggesting common mechanistic underpinnings. Similar findings have been reported in patients with mild traumatic brain injury and whiplash. We hypothesise that pain, fatigue and excessive interoceptive monitoring produce a decrease in externally directed attention. This increases susceptibility to distraction and slows information processing, interfering with cognitive function, in particular multitasking. Routine cognitive processes are experienced as unduly effortful. This may reflect a switch from an automatic to a less efficient controlled or explicit cognitive mode, a mechanism that has also been proposed for impaired motor control in FND. These experiences might then be overinterpreted due to memory perfectionism and heightened self-monitoring of cognitive performance.
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Affiliation(s)
- Tiago Teodoro
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's, University of London, London, UK.,Department of Neurology, St George's University Hospitals NHS Foundation Trust, London, UK.,Instituto de Medicina Molecular Faculdade de Medicina, Universidade de Lisboa & Serviço de Neurologia Hospital de Santa Maria, Lisboa, Portugal
| | - Mark J Edwards
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's, University of London, London, UK.,Department of Neurology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Jeremy D Isaacs
- Neurosciences Research Centre, Molecular and Clinical Sciences Research Institute, St George's, University of London, London, UK.,Department of Neurology, St George's University Hospitals NHS Foundation Trust, London, UK
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19
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Gromisch ES, Fiszdon JM, Kurtz MM. The effects of cognitive-focused interventions on cognition and psychological well-being in persons with multiple sclerosis: A meta-analysis. Neuropsychol Rehabil 2018; 30:767-786. [PMID: 29973121 DOI: 10.1080/09602011.2018.1491408] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Elizabeth S. Gromisch
- Mandell Center for Multiple Sclerosis, Mount Sinai Rehabilitation Hospital, Trinity Health Of New England, Hartford, CT, USA
- Psychology Service, VA Connecticut Healthcare System, West Haven, CT, USA
| | - Joanna M. Fiszdon
- Psychology Service, VA Connecticut Healthcare System, West Haven, CT, USA
- Department of Psychiatry, Yale University, New Haven, CT, USA
| | - Matthew M. Kurtz
- Department of Psychology and Program in Neuroscience and Behavior, Wesleyan University, Middletown, CT, USA
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20
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21
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Berard JA, Smith AM, Walker LAS. A Longitudinal Evaluation of Cognitive Fatigue on a Task of Sustained Attention in Early Relapsing-Remitting Multiple Sclerosis. Int J MS Care 2018; 20:55-61. [PMID: 29670491 DOI: 10.7224/1537-2073.2016-106] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background Cognitive fatigue can be objectively measured on tasks of sustained attention and can be defined as decreased performance as a result of sustained cognitive effort. Individuals with multiple sclerosis (MS) early in their disease are vulnerable to cognitive fatigue, although this has yet to be evaluated longitudinally. We aimed to evaluate cognitive fatigue over a 3-year interval in individuals with early-phase relapsing-remitting MS (RRMS). The sensitivity of the Paced Auditory Serial Addition Test (PASAT) at detecting cognitive fatigue was evaluated, as was the impact of scoring method. Methods 32 people with MS and 32 controls completed the 3- and 2-second PASAT (PASAT-3″ and -2″) as a measure of sustained attention at baseline and 3-year follow-up. Results Performance on the PASAT remained stable across time, with improvement noted on the PASAT-2″ likely due to practice and the small sample size. Cognitive fatigue was noted at both times, although sensitivity varied based on scoring method. No evidence of worsening cognitive fatigue was noted over time. The MS group performed worse only when cognitive fatigue was the outcome variable. Conclusions Although individuals with MS continue to be vulnerable to cognitive fatigue at follow-up, severity does not seem to increase with time. Cognitive fatigue may be a more sensitive marker of cognitive impairment than overall task performance in those with early-phase RRMS, which has important implications given that clinically only task performance is typically assessed.
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22
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Ozakbas S, Yigit P, Cinar BP, Limoncu H, Kahraman T, Kösehasanoğulları G. The Turkish validation of the Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS) battery. BMC Neurol 2017; 17:208. [PMID: 29207954 PMCID: PMC5717821 DOI: 10.1186/s12883-017-0993-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 11/28/2017] [Indexed: 11/17/2022] Open
Abstract
Background Cognitive impairment may be seen in as many as 43–70% of patients with multiple sclerosis (MS) and may be observed in all MS subtypes. The Brief International Cognitive Assessment in Multiple Sclerosis (BICAMS) battery may be used to evaluate cognition status. The purpose of the current study is to validate the BICAMS battery in Turkish. Methods Patients with MS attending our clinic between September 2014 and April 2015 were invited to participate. Healthy control participants were matched in terms of age, gender and years of education. Results One hundred seventy-three MS patients and 153 healthy control participants were enrolled in the study. MS patients performed significantly worse in all trials than the members of the healthy control group. In addition, cognitive dysfunction was identified in 78 of the 173 (45.1%) patients. In the MS with cognitive impairment group, 64 out of 151 (42.4%) subjects were RRMS patients, 12 out of 18 (66.7%) were secondary progressive MS patients, and 2 out of 4 (50%) were primer progressive MS patients. Conclusions The BICAMS has been proposed for assessing cognitive impairment in MS patients. This study shows that the battery is suitable for use in Turkey.
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Affiliation(s)
- Serkan Ozakbas
- Department of Neurology, Dokuz Eylul University, Izmir, Turkey
| | - Pinar Yigit
- Department of Neurology, Dokuz Eylul University, Izmir, Turkey
| | - Bilge Piri Cinar
- Department of Neurology, Samsun Training and Researce Hospital, Samsun, Turkey.
| | - Hatice Limoncu
- Department of Neurology, Dokuz Eylul University, Izmir, Turkey
| | - Turhan Kahraman
- School of Physical Therapy and Rehabilitation Department, İzmir Katip Celebi University, Izmir, Turkey
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23
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Hansen S, Lautenbacher S. Neuropsychological Assessment in Multiple Sclerosis. ZEITSCHRIFT FUR NEUROPSYCHOLOGIE 2017. [DOI: 10.1024/1016-264x/a000197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Abstract. Neuropsychological deficits in multiple sclerosis (MS) are common. Over the past decades, many different procedures have been employed in diagnosing these deficits. Even though certain aspects of cognitive performance such as information processing speed and working memory may be affected more frequently than other cognitive functions, no specific deficit profile has been established in MS. This article provides an overview of the neuropsychological diagnostic procedures in MS and allows the reader to reach an informed decision on the applicability of specific procedures and the availability of study data in the context of MS. Additionally, it makes recommendations on the compilation of both screening procedures and extensive test batteries.
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Affiliation(s)
- Sascha Hansen
- Klinikum Bayreuth GmbH, Betriebsstätte Hohe Warte, Department of Neurology, Bayreuth, Germany
- Otto-Friedrich-University, Department of Physiological Psychology, Bamberg, Germany
| | - Stefan Lautenbacher
- Otto-Friedrich-University, Department of Physiological Psychology, Bamberg, Germany
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24
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Interventions for Posttraumatic Brain Injury Fatigue: An Updated Review. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2017. [DOI: 10.1007/s40141-017-0147-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Harrison AM, das Nair R, Moss-Morris R. Operationalising cognitive fatigability in multiple sclerosis: A Gordian knot that can be cut? Mult Scler 2016; 23:1682-1696. [PMID: 27903936 DOI: 10.1177/1352458516681862] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Researchers have attempted to operationalise objective measures of cognitive fatigability in multiple sclerosis (MS) to overcome the perceived subjectivity of patient-reported outcomes of fatigue (PROs). Measures of cognitive fatigability examine decrements in performance during sustained neurocognitive tasks. OBJECTIVE This personal viewpoint briefly summarises available evidence for measures of cognitive fatigability in MS and considers their overall utility. RESULTS Studies suggest there may be a construct that is distinct from self-reported fatigue, reflecting a new potential intervention target. However, assessments vary and findings across and within measures are inconsistent. Few measures have been guided by a coherent theory, and those identified are likely to be influenced by other confounds, such as cognitive impairment caused more directly by disease processes, depression and assessment biases. CONCLUSION Future research may benefit from (a) developing a guiding theory of cognitive fatigability, (b) examining ecological and construct validity of existing assessments and (c) exploring whether the more promising cognitive fatigability measures are correlated with impaired functioning after accounting for possible confounds. Given the issues raised, we caution that our purposes as researchers may be better served by continuing our search for a more objective cognitive fatigability construct that runs in parallel with improving, rather than devaluing, current PROs.
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Affiliation(s)
- Anthony Mark Harrison
- Health Psychology Section, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Roshan das Nair
- Division of Psychiatry and Applied Psychology, School of Medicine, The University of Nottingham, Nottingham, UK
| | - Rona Moss-Morris
- Health Psychology Section, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
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Veauthier C, Hasselmann H, Gold SM, Paul F. The Berlin Treatment Algorithm: recommendations for tailored innovative therapeutic strategies for multiple sclerosis-related fatigue. EPMA J 2016; 7:25. [PMID: 27904656 PMCID: PMC5121967 DOI: 10.1186/s13167-016-0073-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 10/21/2016] [Indexed: 12/11/2022]
Abstract
More than 80% of multiple sclerosis (MS) patients suffer from fatigue. Despite this, there are few therapeutic options and evidence-based pharmacological treatments are lacking. The associated societal burden is substantial (MS fatigue is a major reason for part-time employment or early retirement), and at least one out of four MS patients view fatigue as the most burdensome symptom of their disease. The mechanisms underlying MS-related fatigue are poorly understood, and objective criteria for distinguishing and evaluating levels of fatigue and tiredness have not yet been developed. A further complication is that both symptoms may also be unspecific indicators of many other diseases (including depression, sleep disorders, anemia, renal failure, liver diseases, chronic obstructive pulmonary disease, drug side effects, recent MS relapses, infections, nocturia, cancer, thyroid hypofunction, lack of physical exercise). This paper reviews current treatment options of MS-related fatigue in order to establish an individualized therapeutic strategy that factors in existing comorbid disorders. To ensure that such a strategy can also be easily and widely implemented, a comprehensive approach is needed, which ideally takes into account all other possible causes and which is moreover cost efficient. Using a diagnostic interview, depressive disorders, sleep disorders and side effects of the medication should be identified and addressed. All MS patients suffering from fatigue should fill out the Modified Fatigue Impact Scale, Epworth Sleepiness Scale, the Beck Depression Inventory (or a similar depression scale), and the Pittsburgh Sleep Quality Index (or the Insomnia Severity Index). In some patients, polygraphic or polysomnographic investigations should be performed. The treatment of underlying sleep disorders, drug therapy with alfacalcidol or fampridine, exercise therapy, and cognitive behavioral therapy-based interventions may be effective against MS-related fatigue. The objectives of this article are to identify the reasons for fatigue in patients suffering from multiple sclerosis and to introduce individually tailored treatment approaches. Moreover, this paper focuses on current knowledge about MS-related fatigue in relation to brain atrophy and lesions, cognition, disease course, and other findings in an attempt to identify future research directions.
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Affiliation(s)
- Christian Veauthier
- Interdisciplinary Center for Sleep Medicine, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany ; NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Helge Hasselmann
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany ; Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany
| | - Stefan M Gold
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Hindenburgdamm 30, 12203 Berlin, Germany ; Institute of Neuroimmunology and Multiple Sclerosis (INIMS), Center for Molecular Neurobiology (ZMNH), University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Friedemann Paul
- NeuroCure Clinical Research Center, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany ; Clinical and Experimental Multiple Sclerosis Research Center, Department of Neurology, Charité - Universitätsmedizin Berlin, 10117 Berlin, Germany ; Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany
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27
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Völker I, Kirchner C, Bock OL. On the relationship between subjective and objective measures of fatigue. ERGONOMICS 2016; 59:1259-1263. [PMID: 26642736 DOI: 10.1080/00140139.2015.1110622] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Objective and subjective methods have been used in the past to assess workplace fatigue, but little is known about correlations between them. We examine correlations between subjective and objective measures, including measures collected in a workplace scenario. METHODS 15 young and 17 older participants were assessed before and after work with four types of fatigue measure: objective physical (posturography), objective mental (psychomotor vigilance task), subjective physical and mental (self-assessment), objective and subjective realistic (oculomotor behaviour, observer-rated facial expression, typing performance). RESULTS Pre- and post-test scores were analysed with an ANOVA, significant differences were submitted to a factor analysis. It yielded three factors: one representing posturography, the second self-rated mental and physical fatigue and the third observer-rated facial expression. CONCLUSIONS Results advocate the existence of three independent fatigue components: Objective physical fatigue, introspective and extrospective fatigue. Practitioner Summary: This study analyses correlations between different subjective and objective fatigue markers to better understand the complex nature of workplace fatigue. Measurements were conducted directly at the workplace. Results reveal that fatigue comprises three independent fatigue components: Objective physical fatigue, introspective and extrospective fatigue.
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Affiliation(s)
- Ina Völker
- a Institute of Physiology and Anatomy , German Sport University Cologne , Cologne , Germany
| | - Christine Kirchner
- a Institute of Physiology and Anatomy , German Sport University Cologne , Cologne , Germany
| | - Otmar Leo Bock
- a Institute of Physiology and Anatomy , German Sport University Cologne , Cologne , Germany
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Shuman-Paretsky M, Zemon V, Foley FW, Holtzer R. Development and Validation of the State-Trait Inventory of Cognitive Fatigue in Community-Dwelling Older Adults. Arch Phys Med Rehabil 2016; 98:766-773. [PMID: 27576190 DOI: 10.1016/j.apmr.2016.07.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 07/22/2016] [Accepted: 07/27/2016] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To develop and validate a subjective measure of cognitive fatigue-the State-Trait Inventory of Cognitive Fatigue-in community-dwelling older adults. DESIGN Scale development and test construction. SETTING Community-dwelling older adults enrolled in a longitudinal cohort aging study. PARTICIPANTS Participants (N=175) were healthy, English-speaking, community-dwelling adults, age ≥65 years. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES State-Trait Inventory of Cognitive Fatigue total, cognitive fatigue, motivation, mental effort, and boredom summation scores for both state and trait forms. RESULTS Principal component analysis yielded the expected 4 components for both state and trait forms: cognitive fatigue, mental effort, motivation, and boredom. All components had good reliability. There was good convergent validity as measured by the strong positive relation between cognitive fatigue and a subjective measure of general fatigue, even after controlling for depressive symptoms. Greater subjective cognitive fatigue was associated with worse performance on measures thought to be more sensitive to aspects of executive functioning. CONCLUSIONS This study developed and established the psychometric properties of a new instrument for the subjective measurement of cognitive fatigue for use in community-dwelling older adults. The State-Trait Inventory of Cognitive Fatigue's relatively brief administration time (<10min; mean, 5.6±2.9) and strong psychometric properties support its utility in both research and clinical settings. Future studies should establish the psychometric properties of this scale in other populations and examine its predictive utility for relevant clinical outcomes.
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Affiliation(s)
| | - Vance Zemon
- Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY
| | - Frederick W Foley
- Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY
| | - Roee Holtzer
- Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY; Department of Neurology, Albert Einstein College of Medicine, Yeshiva University, Bronx, NY
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Téllez N, Río J, Tintoré M, Nos C, Galán I, Montalban X. Does the Modified Fatigue Impact Scale offer a more comprehensive assessment of fatigue in MS? Mult Scler 2016; 11:198-202. [PMID: 15794395 DOI: 10.1191/1352458505ms1148oa] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Background: As a symptom of multiple sclerosis (MS), fatigue is difficult to manage because of its unknown etiology, the lack of efficacy of the drugs tested to date and the absence of consensus about which would be the ideal measure to assess fatigue. Objective: Our aim was to assess the frequency of fatigue in a sample of MS patients and healthy controls (HC) using two fatigue scales, the Fatigue Severity Scale (FSS) and the Modified Fatigue Impact Scale (MFIS) with physical, cognitive and psychosocial subscales. We also studied the relationship fatigue has with depression, disability and interferon beta. Methods: Three hundred and fifty-four individuals (231 MS patients and 123 HC) were included in this cross-sectional study. Fatigue was assessed using the FSS and MFIS. Depression was measured by the Beck Depression Inventory (BDI), and disability by the Expanded Disability Status Scale (EDSS). A status of fatigue was considered when the FSS≥ 5, of non-fatigue when the FSS≤4, and scores between 4.1 and 4.9 were considered doubtful fatigue cases. Results: Fifty-five percent of MS patients and 13% of HC were fatigued. The global MFIS score positively correlated with the FSS in MS and HC (r=0.68 for MS and r=0.59 for HC, p<0.0001). Nonetheless, the MFIS physical subscale showed the strongest correlation score with the FSS (r=0.75, p<0.0001). In addition, a prediction analysis showed the physical MFIS subscale to be the only independent predictor of FSS score (p<0.0001), suggesting other aspects of fatigue, as cognition and psychosocial functions, may be explored by the FSS to a lesser extent. Depression also correlated with fatigue (r=0.48 for the FSS and r=0.7 for the MFIS, p<0.0001) and, although EDSS correlated with fatigue as well, the scores decreased after correcting for depression. Interferon beta showed no relationship with fatigue. Conclusions: Fatigue is a frequent symptom found in MS patients and clearly related with depression. Each fatigue scale correlates with one another, indicating that they are measuring similar constructs. Nevertheless, spheres of fatigue as cognition and psychosocial functions are probably better measured by the MFIS, although this hypothesis will need to be confirmed with appropriate psychometrical testing.
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Affiliation(s)
- N Téllez
- Unitat de Neuroimmunologia Clínica, Edif EUI, planta 2, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, 08035 Barcelona, Spain.
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Schwid SR, Tyler CM, Scheid EA, Weinstein A, Goodman AD, McDermott MP. Cognitive fatigue during a test requiring sustained attention: a pilot study. Mult Scler 2016; 9:503-8. [PMID: 14582777 DOI: 10.1191/1352458503ms946oa] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Background: Fatigue is common in multiple sclerosis (MS), but difficulty quantifying fatigue severity has impeded studies of its characteristics, mechanisms, and therapeutics. Motor fatigue can be objectively measured as the decline in strength occurring during sustained contractio ns. A nalogous declines in cognitive performance occur during tasks requiring sustained attentio n. Objective: To objectively measure cognitive fatigue as a decline in performance during tests requiring sustained attentio n. Design/Methods: Patients with clinically stable MS (n=20) and healthy controls (n=21) with comparable age, gender, and education completed the Paced A uditory Serial A ddition Test (PA SAT) and the Digit O rdering Test (DOT) at two identical test sessions separated by 4-10 days, within a month after two practice sessions. C ognitive fatigue was quantified with two pre-specified methods for each test. The reliability of cognitive fatigue assessments was evaluated with intraclass correlation coefficients (ICC s) and construct validity was evaluated using correlations with measures of self-reported fatigue, cognition, and overall impairment/disability. Results: MS patients had an average of 18.7 items correct on the first 20 items of the PA SAT and 17.8 correct on the last 20 items, quantified as 5.3-5.8% declines in performance using the different measurement methods (P =0.01, rejecting the null hypothesis of zero mean decline). A lthough MS patients as a group demonstrated a similar decline at both sessions, IC C s were relatively low. C ontrol patients did not demonstrate significant declines in performance during PA SAT administration, but tests comparing declines in MS patients and controls did not demonstrate significant differences. Fatigue was not demonstrated using the DOT, and test-retest reliability was very poor. Conclusions: MS patients have objectively measurable cognitive fatigue during administration of the PASAT.
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Affiliation(s)
- Steven R Schwid
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA.
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Event-related potentials and cognitive performance in multiple sclerosis patients with fatigue. Neurol Sci 2016; 37:1545-56. [PMID: 27271940 PMCID: PMC4992503 DOI: 10.1007/s10072-016-2622-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 05/23/2016] [Indexed: 11/27/2022]
Abstract
The aim of this study was to evaluate event-related potentials (ERP) and cognition in multiple sclerosis (MS) patients with regard to fatigue and disease-related variables. The study comprised 86 MS patients and 40 controls. Fatigue was assessed using the Fatigue Severity Scale (FSS/FSS-5) and the Modified Fatigue Impact Scale (MFIS/MFISmod). N200 and P300 components of auditory ERP were analyzed. Cognition was evaluated by means of Brief Repeatable Battery of Neuropsychological Tests (BRBNT). The results of ERP and BRBNT were compared between non-fatigued, moderately and severely fatigued MS patients and controls. P300 latency was significantly longer in the whole MS group and in the fatigued patients than in the controls. A positive correlation was found between P300 latency and MFIS/MFISmod results, independent from age and MS-related variables. The fatigued patients scored less than non-fatigued ones in tests evaluating memory, visuomotor abilities and attention. Results of these tests correlated significantly with fatigue measures, independently from MS-related variables. Fatigue in MS patients showed significant relationships with impairment within the memory and attention domains. Parameters of auditory ERP, as electrophysiological biomarkers of cognitive performance, were not independently linked to fatigue.
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Völker I, Kirchner C, Bock OL. Relation between Multiple Markers of Work-Related Fatigue. Saf Health Work 2016; 7:124-9. [PMID: 27340599 PMCID: PMC4909850 DOI: 10.1016/j.shaw.2015.11.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 11/03/2015] [Accepted: 11/07/2015] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Work-related fatigue has a strong impact on performance and safety but so far, no agreed upon method exists to detect and quantify it. It has been suggested that work-related fatigue cannot be quantified with just one test alone, possibly because fatigue is not a uniform construct. The purpose of this study is therefore to measure work-related fatigue with multiple tests and then to determine the underlying factorial structure. METHODS Twenty-eight employees (mean: 36.11; standard deviation 13.17) participated in five common fatigue tests, namely, posturography, heart rate variability, distributed attention, simple reaction time, and subjective fatigue before and after work. To evaluate changes from morning to afternoon, t tests were conducted. For further data analysis, the differences between afternoon and morning scores for each outcome measure and participant (Δ scores) were submitted to factor analysis with varimax rotation and each factor with the highest-loading outcome measure was selected. The Δ scores from tests with single and multiple outcome measures were submitted for a further factor analysis with varimax rotation. RESULTS The statistical analysis of the multiple tests determine a factorial structure with three factors: The first factor is best represented by center of pressure (COP) path length, COP confidence area, and simple reaction time. The second factor is associated with root mean square of successive difference and useful field of view (UFOV). The third factor is represented by the single Δ score of subjective fatigue. CONCLUSION Work-related fatigue is a multidimensional phenomenon that should be assessed by multiple tests. Based on data structure and practicability, we recommend carrying out further studies to assess work-related fatigue with manual reaction time and UFOV Subtest 2.
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Affiliation(s)
- Ina Völker
- German Sport University Cologne—Institute of Physiology and Anatomy, Cologne, Germany
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Wang L, Apple AC, Schroeder M, Ryals AJ, Voss JL, Gitelman D, Sweet JJ, Butt Z, Cella D, Wagner LI. Reduced prefrontal activation during working and long-term memory tasks and impaired patient-reported cognition among cancer survivors postchemotherapy compared with healthy controls. Cancer 2016; 122:258-68. [PMID: 26484435 PMCID: PMC4707984 DOI: 10.1002/cncr.29737] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 08/24/2015] [Accepted: 09/08/2015] [Indexed: 11/09/2022]
Abstract
BACKGROUND Patients who receive adjuvant chemotherapy have reported cognitive impairments that may last for years after the completion of treatment. Working memory-related and long-term memory-related changes in this population are not well understood. The objective of this study was to demonstrate that cancer-related cognitive impairments are associated with the under recruitment of brain regions involved in working and recognition memory compared with controls. METHODS Oncology patients (n = 15) who were receiving adjuvant chemotherapy and had evidence of cognitive impairment according to neuropsychological testing and self-report and a group of age-matched, education group-matched, cognitively normal control participants (n = 14) underwent functional magnetic resonance imaging. During functional magnetic resonance imaging, participants performed a nonverbal n-back working memory task and a visual recognition task. RESULTS On the working memory task, when 1-back and 2-back data were averaged and contrasted with 0-back data, significantly reduced activation was observed in the right dorsolateral prefrontal cortex for oncology patients versus controls. On the recognition task, oncology patients displayed decreased activity of the left-middle hippocampus compared with controls. Neuroimaging results were not associated with patient-reported cognition. CONCLUSIONS Decreased recruitment of brain regions associated with the encoding of working memory and recognition memory was observed in the oncology patients compared with the control group. These results suggest that there is a reduction in neural functioning postchemotherapy and corroborate patient-reported cognitive difficulties after cancer treatment, although a direct association was not observed. Cancer 2016;122:258-268. © 2015 American Cancer Society.
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Affiliation(s)
- Lei Wang
- Northwestern University Feinberg School of Medicine
| | | | | | | | - Joel L. Voss
- Northwestern University Feinberg School of Medicine
| | - Darren Gitelman
- Northwestern University Feinberg School of Medicine
- Advocate Lutheran General Hospital
- Chicago Medical School at Rosalind Franklin University
| | | | - Zeeshan Butt
- Northwestern University Feinberg School of Medicine
| | - David Cella
- Northwestern University Feinberg School of Medicine
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Bosnes O, Dahl OP, Almkvist O. Including a subject-paced trial may make the PASAT more acceptable for MS patients. Acta Neurol Scand 2015; 132:219-25. [PMID: 25690091 DOI: 10.1111/ane.12385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2015] [Indexed: 11/30/2022]
Abstract
UNLABELLED The Paced Auditory Serial Addition Test (PASAT) is regularly used in the evaluation of cognition in multiple sclerosis (MS). However, the test may impose frustration, distress, and anxiety in patients, which may result in refusal to participate by many patients. OBJECTIVES In this study, a subject- and experimenter-paced PASAT was compared and analyzed, with regard to independent measures of cognitive functions, as well as disability, fatigue, depression, and anxiety. METHODS A population-based sample of patients with MS (n = 34; mean age 47.2 ± 8.6) was examined with the PASAT, including a subject-paced condition, in addition to the standard experimenter-paced conditions using three levels of interstimuli intervals (ISI: 3.0, 2.5, and 2.0 s). A comprehensive set of neuropsychological tests, measures of disease severity, fatigue, anxiety, and depression were studied as potentially associated factors. RESULTS Subject- and experimenter-paced PASAT performance correlated significantly and the subject-paced administration correlated even higher with measures of information processing speed, executive function, attention, and working memory than standard experimenter-paced administration of PASAT. DISCUSSION The associations between PASAT performance and measures of fatigue, anxiety, and depression were not significant. CONCLUSION The results indicate that the altered PASAT procedure measures the same cognitive functions in MS as the standard procedure. At the same time, the altered procedure may make the PASAT more user-friendly for patients with MS.
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Affiliation(s)
- O. Bosnes
- Department of Psychiatry; Namsos Hospital; Nord-Trøndelag Health Trust; Namsos Norway
| | - O.-P. Dahl
- Department of Neurology; Namsos Hospital; Nord-Trøndelag Health Trust; Namsos Norway
| | - O. Almkvist
- Department of Psychology; Stockholm University; Stockholm Sweden
- Department of Neurobiology Care Sciences and Society; Karolinska Institutet; Stockholm Sweden
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The Hungarian validation of the Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS) battery and the correlation of cognitive impairment with fatigue and quality of life. Mult Scler Relat Disord 2015; 4:499-504. [PMID: 26590654 DOI: 10.1016/j.msard.2015.07.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 06/30/2015] [Accepted: 07/03/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Multiple Sclerosis (MS) causes not only somatic, but also cognitive impairment regardless of the patients׳ age or the course of the disease. The Brief International Cognitive Assessment for MS (BICAMS) test, published in 2011, is a short cognitive questionnaire: a fast, reliable, sensitive and specific tool for the evaluation of the patients׳ cognitive state. OBJECTIVES Our primary objective was to assess the validity of the Hungarian version of the BICAMS test. Our secondary objective was to evaluate the impact of the cognitive impairment on the patient׳s quality of life and fatigue׳s impact on the patients׳ cognitive state. METHODS 65 RR-MS patients and 65 age, sex and education matched healthy control (HC) subjects completed the test and were retested after 3 weeks. The patients also completed the MS Quality of Life 54 (MSQoL54) and the Fatigue Impact Scale (FIS) assessments. Group differences were calculated by paired sample T-tests. The test-retest reliability was measured by intraclass correlation coefficients. To analyze the difference between the test-retest performances of the two groups we used two-way repeated measures ANOVA where the BICAMS battery was the single composite outcome and one-way repeated measures ANOVA. To assess the impact of the cognitive decline on the patients׳ quality of life and fatigue׳s impact on the cognitive state, we examined the correlations between results in the BICAMS and the MSQoL54 and FIS. RESULTS We found significant difference (p ≤ 0.001, p = 0.017 in the first CVLT-II assessment) between MS patients and members of the HC group in all four evaluated parameters of BICAMS test in both sessions. The correlation coefficients were very strong between the tests and retests (r > 0.8; p < 0.001; r = 0.678, p < 0.001 between the CVLT-II assessments). We found that the HC group performed significantly (p = 0.020) better in the retest sessions as compared to their original performance than the patients did and this difference is solely due to the difference between the CVLT-II performances. We have found significant negative correlation between the patients׳ cognitive function and the fatigue score (r < -0.3, p < 0.05). Seven of the MSQoL-54 subscales correlated with the BICAMS performance (r > 0.3; < 0 .05). CONCLUSIONS The Hungarian version of the BICAMS test is a valid and reliable method for the evaluation of MS patients׳ cognitive function. It seems that because of the short retest period, the members of the HC group remembered the CVLT-II words thus performed better than the patients did. Also apparently fatigue can have a negative impact on the patients׳ cognitive state, and cognitive impairment could worsen the patients׳ quality of life.
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Pereira DR, Costa P, Cerqueira JJ. Repeated Assessment and Practice Effects of the Written Symbol Digit Modalities Test Using a Short Inter-Test Interval. Arch Clin Neuropsychol 2015; 30:424-34. [DOI: 10.1093/arclin/acv028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2015] [Indexed: 11/13/2022] Open
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Sandry J, Genova HM, Dobryakova E, DeLuca J, Wylie G. Subjective cognitive fatigue in multiple sclerosis depends on task length. Front Neurol 2014; 5:214. [PMID: 25386159 PMCID: PMC4209827 DOI: 10.3389/fneur.2014.00214] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 10/06/2014] [Indexed: 12/03/2022] Open
Abstract
Objective: The objective of this paper is to investigate the interrelationship between subjective and objective cognitive fatigue, information processing domain [processing speed (PS) vs. working memory (WM)], cognitive load (high vs. low), and time on task in Multiple Sclerosis (MS). Methods: Thirty-two MS participants and 24 healthy controls completed experimental tasks in both the PS and WM domains with different levels of cognitive load. Subjective cognitive fatigue was measured using a visual analog scale at baseline and at multiple time points throughout the experiment. Results: A mixed model ANOVA revealed that subjective cognitive fatigue was higher for the PS task, increased across time, and was higher in the MS group. These findings were qualified by an interaction demonstrating that the MS group showed a steeper increase in subjective cognitive fatigue over time than the healthy control group. Subjective and objective (i.e., performance) cognitive fatigue were not correlated. Conclusion: In this study, subjective and objective cognitive fatigue appears to be independent and cognitive fatigue does not depend on cognitive load. Subjective cognitive fatigue increased with time on task and subjective cognitive fatigue increased more steeply for the MS group. These data suggest that cognitive fatigue in MS is a function of time, that is, the longer participants were engaged in a cognitive task, the more likely it was for them to report increases in cognitive fatigue.
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Affiliation(s)
- Joshua Sandry
- Neuropsychology and Neuroscience Research, Kessler Foundation , West Orange, NJ , USA ; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA
| | - Helen M Genova
- Neuropsychology and Neuroscience Research, Kessler Foundation , West Orange, NJ , USA ; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA
| | - Ekaterina Dobryakova
- Neuropsychology and Neuroscience Research, Kessler Foundation , West Orange, NJ , USA ; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA
| | - John DeLuca
- Neuropsychology and Neuroscience Research, Kessler Foundation , West Orange, NJ , USA ; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA ; Department of Neurology and Neurosciences, Rutgers - New Jersey Medical School , Newark, NJ , USA
| | - Glenn Wylie
- Neuropsychology and Neuroscience Research, Kessler Foundation , West Orange, NJ , USA ; Department of Physical Medicine and Rehabilitation, Rutgers - New Jersey Medical School , Newark, NJ , USA ; War Related Illness and Injury Study Center, Department of Veterans Affairs , East Orange, NJ , USA
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Möller MC, Nygren de Boussard C, Oldenburg C, Bartfai A. An investigation of attention, executive, and psychomotor aspects of cognitive fatigability. J Clin Exp Neuropsychol 2014; 36:716-29. [PMID: 24965830 DOI: 10.1080/13803395.2014.933779] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Self-perceived mental fatigue is a common presenting symptom in many neurological diseases. Discriminating objective fatigability from self-perceived mental fatigue might facilitate neuropsychological diagnosis and treatment programs. However clinically valid neuropsychological instruments suitable for assessment of fatigability are still lacking. The prime aim of the study was to investigate aspects of cognitive fatigability and to identify properties of neuropsychological tests suitable to assess fatigability in patients with persistent cognitive complaints after mild brain injury. Another aim was to investigate whether cognitive fatigability captured by neuropsychological measures is influenced by depression or sleep disturbances. METHOD Twenty-four patients with persistent cognitive symptoms after mild traumatic brain injury (mTBI), (aged 18-51 years) and 31 healthy controls (aged 20-49 years) underwent neuropsychological testing measuring three cognitive fatigability domains: Attention fatigability was assessed using the Ruff 2 & 7 Selective Attention Test, executive fatigability using the Color Word Test (Stroop), and psychomotor fatigability using the Digit Symbol Substitution Test from the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III). Subjective fatigue was measured using the Fatigue Severity Scale and a questionnaire of everyday consequences of fatigue. Depression was screened using the Hospital Anxiety and Depression Scale and sleep disturbances using the Pittsburgh Sleep Quality Index. RESULTS The patients reported significantly more mental fatigue and performed worse on tests of psychomotor and executive fatigability than the healthy controls. Furthermore, the cognitive fatigability measures were not influenced by depression or sleep disturbances, as was the case in self-reported fatigue. CONCLUSION Tests demanding executive or simultaneous processing of several neuropsychological functions seem most sensitive in order to capture cognitive fatigability. Clinical tests that can capture fatigability enable a deeper understanding of how fatigability might contribute to cognitive complaints and problems in maintaining daily activities.
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Krupp LB, Serafin DJ, Christodoulou C. Multiple sclerosis-associated fatigue. Expert Rev Neurother 2014; 10:1437-47. [DOI: 10.1586/ern.10.99] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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An initial validation of the Virtual Reality Paced Auditory Serial Addition Test in a college sample. J Neurosci Methods 2014; 222:15-23. [DOI: 10.1016/j.jneumeth.2013.10.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 10/06/2013] [Accepted: 10/09/2013] [Indexed: 01/22/2023]
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Lapshin H, Audet B, Feinstein A. Detecting cognitive dysfunction in a busy multiple sclerosis clinical setting: a computer generated approach. Eur J Neurol 2013; 21:281-6. [DOI: 10.1111/ene.12292] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 09/23/2013] [Indexed: 11/29/2022]
Affiliation(s)
- H. Lapshin
- Department of Psychiatry; Sunnybrook Health Sciences Centre; Toronto ON Canada
- University of Toronto; Toronto ON Canada
| | - B. Audet
- Department of Psychiatry; Sunnybrook Health Sciences Centre; Toronto ON Canada
| | - A. Feinstein
- Department of Psychiatry; Sunnybrook Health Sciences Centre; Toronto ON Canada
- University of Toronto; Toronto ON Canada
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Genova HM, Rajagopalan V, DeLuca J, Das A, Binder A, Arjunan A, Chiaravalloti N, Wylie G. Examination of cognitive fatigue in multiple sclerosis using functional magnetic resonance imaging and diffusion tensor imaging. PLoS One 2013; 8:e78811. [PMID: 24223850 PMCID: PMC3815348 DOI: 10.1371/journal.pone.0078811] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 09/16/2013] [Indexed: 12/21/2022] Open
Abstract
The present study investigated the neural correlates of cognitive fatigue in Multiple Sclerosis (MS), looking specifically at the relationship between self-reported fatigue and objective measures of cognitive fatigue. In Experiment 1, functional magnetic resonance imaging (fMRI) was used to examine where in the brain BOLD activity covaried with “state” fatigue, assessed during performance of a task designed to induce cognitive fatigue while in the scanner. In Experiment 2, diffusion tensor imaging (DTI) was used to examine where in the brain white matter damage correlated with increased “trait” fatigue in individuals with MS, assessed by the Fatigue Severity Scale (FSS) completed outside the scanning session. During the cognitively fatiguing task, the MS group had increased brain activity associated with fatigue in the caudate as compared with HCs. DTI findings revealed that reduced fractional anisotropy in the anterior internal capsule was associated with increased self-reported fatigue on the FSS. Results are discussed in terms of identifying a “fatigue-network” in MS.
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Affiliation(s)
- Helen M. Genova
- Neuropsychology and Neuroscience Laboratory, Kessler Foundation Research Center, West Orange, New Jersey, United States of America
- Department of Physical Medicine and Rehabilitation, Rutgers, New Jersey Medical School, Newark, New Jersey, United States of America
- * E-mail: (HG); (GW)
| | - Venkateswaran Rajagopalan
- Neuropsychology and Neuroscience Laboratory, Kessler Foundation Research Center, West Orange, New Jersey, United States of America
- Department of Physical Medicine and Rehabilitation, Rutgers, New Jersey Medical School, Newark, New Jersey, United States of America
| | - John DeLuca
- Neuropsychology and Neuroscience Laboratory, Kessler Foundation Research Center, West Orange, New Jersey, United States of America
- Department of Physical Medicine and Rehabilitation, Rutgers, New Jersey Medical School, Newark, New Jersey, United States of America
| | - Abhijit Das
- Neuropsychology and Neuroscience Laboratory, Kessler Foundation Research Center, West Orange, New Jersey, United States of America
- Department of Physical Medicine and Rehabilitation, Rutgers, New Jersey Medical School, Newark, New Jersey, United States of America
| | - Allison Binder
- Department of Psychology, University of Massachusetts, Amherst, Amherst, Massachusetts, United States of America
| | - Aparna Arjunan
- Department of Clinical Psychology, Suffolk University, Boston, Massachusetts, United States of America
| | - Nancy Chiaravalloti
- Neuropsychology and Neuroscience Laboratory, Kessler Foundation Research Center, West Orange, New Jersey, United States of America
- Department of Physical Medicine and Rehabilitation, Rutgers, New Jersey Medical School, Newark, New Jersey, United States of America
| | - Glenn Wylie
- Neuropsychology and Neuroscience Laboratory, Kessler Foundation Research Center, West Orange, New Jersey, United States of America
- Department of Physical Medicine and Rehabilitation, Rutgers, New Jersey Medical School, Newark, New Jersey, United States of America
- * E-mail: (HG); (GW)
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Young JL. Chronic fatigue syndrome: 3 cases and a discussion of the natural history of attention-deficit/hyperactivity disorder. Postgrad Med 2013; 125:162-8. [PMID: 23391682 DOI: 10.3810/pgm.2013.01.2631] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Fatigue is commonly reported in the primary care setting; however, its cause is often unclear. This article presents 3 cases involving patients with chronic fatigue syndrome who responded poorly to treatment. After clinical evaluation, all patients were found to meet criteria for attention-deficit/hyperactivity disorder (ADHD) and underwent a standard regimen of a psychostimulant medication. After treatment with psychostimulants, the 3 patients reported improved symptoms of fatigue and pain, and cognitive and core ADHD symptoms. These cases suggest that ADHD and chronic fatigue syndrome (and possibly fibromyalgia) share a common underlying mechanism. This article presents a model suggesting that over time, ADHD (predominantly inattentive type) develops into a syndrome of chronic fatigue and pain. These cases indicate that fatigue may be an important presenting symptom of adult ADHD. These cases also suggest the need for additional research to determine the prevalence of ADHD in patients who present with fatigue, and, in those meeting criteria for ADHD, the responsiveness of fatigue to psychostimulant treatment.
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Affiliation(s)
- Joel L Young
- Wayne State University School of Medicine, Detroit, MI 48307, USA.
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Wylie GR, Genova H, DeLuca J, Chiaravalloti N, Sumowski JF. Functional magnetic resonance imaging movers and shakers: does subject-movement cause sampling bias? Hum Brain Mapp 2012; 35:1-13. [PMID: 22847906 DOI: 10.1002/hbm.22150] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Revised: 05/24/2012] [Accepted: 06/04/2012] [Indexed: 11/10/2022] Open
Abstract
Head movement during functional magnetic resonance imaging (fMRI) degrades data quality. The effects of small movements can be ameliorated during data postprocessing, but data associated with severe movement is frequently discarded. In discarding these data, it is often assumed that head-movement is a source of random error, and that data can be discarded from subjects with severe movement without biasing the sample. We tested this assumption by examining whether head movement was related to task difficulty and cognitive status among persons with multiple sclerosis (MS). Thirty-four persons with MS were scanned while performing a working memory task with three levels of difficulty (the N-back task). Maximum movement (angle, shift) was estimated for each difficulty level. Cognitive status was assessed by combining performance on a working memory and processing speed task. An interaction was found between task difficulty and cognitive status (high vs. low cognitive ability): there was a linear increase in movement as task difficulty increased that was larger among subjects with lower cognitive ability. Analyses of the signal-to-noise ratio (SNR) confirmed that increases in movement degraded data quality. Similar, though far smaller, effects were found in a cohort of healthy control (HC) subjects. Therefore, discarding data with severe movement artifact may bias MS samples such that only those with less-severe cognitive impairment are included in the analyses. However, even if such data are not discarded outright, subjects who move more (MS and HC) will contribute less to the group-level results because of degraded SNR.
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Affiliation(s)
- Glenn R Wylie
- Neuropsychology and Neuroscience Laboratory, Kessler Foundation Research Center, West Orange, New Jersey; Department of Physical Medicine & Rehabilitation, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey
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45
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Detecting cognitive fatigue in multiple sclerosis: Method matters. J Neurol Sci 2012; 316:86-92. [DOI: 10.1016/j.jns.2012.01.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 01/18/2012] [Accepted: 01/24/2012] [Indexed: 11/19/2022]
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Abstract
BACKGROUND Cognitive problems are commonly reported in persons with chronic fatigue syndrome (CFS) and are one of the most disabling symptoms of this condition. A number of cognitive deficits have been identified, although the findings are inconsistent and hindered by methodological differences. The current study therefore conducted a meta-analysis of research examining cognitive functioning in persons with CFS in order to identify the pattern and magnitude of any deficits that are associated with this condition. METHOD A comprehensive search of the PubMed and PsycINFO databases for studies that examined cognitive functioning in CFS between 1988 and 2008 identified 50 eligible studies. Weighted Cohen's d effect sizes, 95% confidence intervals and fail-safe Ns were calculated for each cognitive score. RESULTS Evidence of cognitive deficits in persons with CFS was found primarily in the domains of attention, memory and reaction time. Deficits were not apparent on tests of fine motor speed, vocabulary, reasoning and global functioning. CONCLUSIONS Persons with CFS demonstrate moderate to large impairments in simple and complex information processing speed and in tasks requiring working memory over a sustained period of time.
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Affiliation(s)
- S J Cockshell
- School of Psychology, The University of Adelaide, Adelaide, South Australia, Australia
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47
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Bol Y, Duits AA, Hupperts RMM, Verlinden I, Verhey FRJ. The impact of fatigue on cognitive functioning in patients with multiple sclerosis. Clin Rehabil 2010; 24:854-62. [DOI: 10.1177/0269215510367540] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objective: To study the impact of physical and mental fatigue on cognitive complaints and cognitive performance in patients with multiple sclerosis. Design: Cross-sectional study. Setting: An outpatient neurology clinic. Subjects: Eighty patients diagnosed with clinically definite multiple sclerosis. Measures: The subscales physical and mental fatigue of the Multidimensional Fatigue Inventory; the Hospital Anxiety and Depression Scale and the Cognitive Failure Questionnaire. Cognitive performance was assessed by an extensive neuropsychological test battery, including several tasks requiring effortful information processing. Results: Both anxiety and depression and mental fatigue significantly contributed to cognitive complaints, explaining respectively about 9% and 39% of the total variance. The contribution of physical fatigue to cognitive complaints was not significant. Both physical and mental fatigue did not significantly contribute to cognitive performance in terms of mental speed, attention, memory and executive functioning. Conclusions: To refine interventions for those patients with cognitive complaints, we advise adding measurements of anxiety, depression and fatigue to their neuropsychological assessment. Fatigue permits extensive neuropsychological assessment, which is needed to detect cognitive impairment in multiple sclerosis.
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Affiliation(s)
- Yvonne Bol
- Department of Medical Psychology and Psychiatry, Orbis Medical Centre, Sittard, School for Mental Health and Neuroscience, Maastricht University Medical Centre, Maastricht,
| | - Annelien A Duits
- School for Mental Health and Neuroscience and Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht
| | - Raymond MM Hupperts
- School for Mental Health and Neuroscience, Maastricht University Medical Centre, Maastricht, Department of Neurology, Orbis Medical Centre, Sittard
| | | | - Frans RJ Verhey
- School for Mental Health and Neuroscience and Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands
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Leavitt VM, DeLuca J. Central Fatigue: Issues Related to Cognition, Mood and Behavior, and Psychiatric Diagnoses. PM R 2010; 2:332-7. [DOI: 10.1016/j.pmrj.2010.03.027] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Accepted: 03/21/2010] [Indexed: 11/28/2022]
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Morrow SA, Weinstock-Guttman B, Munschauer FE, Hojnacki D, Benedict RHB. Subjective fatigue is not associated with cognitive impairment in multiple sclerosis: cross-sectional and longitudinal analysis. Mult Scler 2009; 15:998-1005. [DOI: 10.1177/1352458509106213] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Studies in multiple sclerosis (MS) report conflicting conclusions regarding fatigue and cognition, which may partly be due to the use of small sample sizes and frequent reliance on a cross-sectional approach. Objective The ability to distinguish between these two disabling symptoms is necessary in order to properly assess and treat MS patients. Methods In a retrospective analysis, we assessed the correlation between fatigue and neuropsychological (NP) testing using a cross-sectional ( n = 465) and longitudinal approach ( n = 69). Cognition was measured using a comprehensive battery called the Minimal Assessment of Cognitive Function in MS (MACFIMS), and fatigue was measured with the Fatigue Severity Scale (FSS). FSS scores were categorized as normal (≤4.0), borderline fatigue (4 < FSS < 5.0), and fatigued (≥5.0). Repeat assessments ( n = 69) were categorized as improved or worsened by a change in FSS of either 0.5 or 1.0. Results MS patients had significantly higher FSS scores than normal controls ( P < 0.001). No correlation was found between FSS and NP scores in either cross-sectional or longitudinal analyses. Fatigue was moderately correlated with depression, assessed using the Beck Depression Inventory Fast Screen (BDIFS) ( r = 0.44, P < 0.001). Longitudinally, there was a medium correlation between change in FSS and BDIFS ( r = 0.34, P = 0.001), but no significant differences on NP scores using either definition of change. Conclusion We conclude that self-reported fatigue, while correlated with self-reported depression, is not significantly related to cognitive capacity in MS.
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Affiliation(s)
- SA Morrow
- School of Medicine, The Jacobs Neurological Institute, State University of New York at Buffalo, Buffalo, New York, USA
| | - B Weinstock-Guttman
- School of Medicine, The Jacobs Neurological Institute, State University of New York at Buffalo, Buffalo, New York, USA
| | - FE Munschauer
- School of Medicine, The Jacobs Neurological Institute, State University of New York at Buffalo, Buffalo, New York, USA
| | - D Hojnacki
- School of Medicine, The Jacobs Neurological Institute, State University of New York at Buffalo, Buffalo, New York, USA
| | - RHB Benedict
- School of Medicine, The Jacobs Neurological Institute, State University of New York at Buffalo, Buffalo, New York, USA
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50
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Abstract
Multiple sclerosis (MS) is a progressive disease of the CNS that is characterised by widespread lesions in the brain and spinal cord. MS results in motor, cognitive, and neuropsychiatric symptoms, all of which can occur independently of one another. The common cognitive symptoms include deficits in complex attention, efficiency of information processing, executive functioning, processing speed, and long-term memory. These deficits detrimentally affect many aspects of daily life, such as the ability to run a household, participate fully in society, and maintain employment--factors that can all affect the overall quality of life of the patient. The increased use of neuroimaging techniques in patients with MS has advanced our understanding of structural and functional changes in the brain that are characteristic of this disease, although much remains to be learned. Moreover, examination of efforts to treat the cognitive deficits in MS is still in the early stages.
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