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Jaywant A, Keenan A. Pathophysiology, Assessment, and Management of Post-Stroke Cognitive Impairment, Depression, and Fatigue. Phys Med Rehabil Clin N Am 2024; 35:463-478. [PMID: 38514230 DOI: 10.1016/j.pmr.2023.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Post-stroke cognitive impairment, depression, and fatigue are common, persistent, and disabling. This review summarizes current knowledge on the pathophysiology, assessment, and management of these debilitating neuropsychiatric sequelae of stroke. We briefly review evolving knowledge on the neural mechanisms and risk factors for each condition. We describe patient-reported outcome measures and clinician rating techniques that can be used to assist in screening and comprehensive assessment. We then discuss behavioral and pharmacologic management strategies. Heterogeneity of stroke remains a challenge in management and new research is still needed to optimize and personalize treatments for stroke survivors.
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Affiliation(s)
- Abhishek Jaywant
- Department of Psychiatry, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA; Department of Rehabilitation Medicine, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA; NewYork-Presbyterian Hospital/Weill Cornell Medical Center, 525 East 68th Street, New York, NY 10065, USA.
| | - Alexandra Keenan
- Department of Rehabilitation Medicine, Weill Cornell Medicine, 525 East 68th Street, New York, NY 10065, USA
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Karataş L, Utkan Karasu A, Karataş GK. The effect of offline anosognosia for hemispatial neglect on neglect rehabilitation in patients with subacute and chronic right hemispheric brain injury. A retrospective cohort study. Neuropsychol Rehabil 2024; 34:453-468. [PMID: 37073753 DOI: 10.1080/09602011.2023.2202862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 04/06/2023] [Indexed: 04/20/2023]
Abstract
CLINICAL TRIALS REGISTRATION NUMBER NCT05145855.
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Affiliation(s)
- Levent Karataş
- Department of Physical Medicine and Rehabilitation, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Ayça Utkan Karasu
- Department of Physical Medicine and Rehabilitation, Gazi University Faculty of Medicine, Ankara, Turkey
| | - Gülçin Kaymak Karataş
- Department of Physical Medicine and Rehabilitation, Gazi University Faculty of Medicine, Ankara, Turkey
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Jang WH, Seo SM. Digital Therapeutics for the Egocentric and Allocentric Neglects in Patients with Brain Injury: A Mini Review. Brain Sci 2023; 13:1170. [PMID: 37626526 PMCID: PMC10452466 DOI: 10.3390/brainsci13081170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Various therapeutic approaches have been developed for neglect. Many studies have demonstrated the effect of digital therapeutics (DTx) on neglect. However, few studies have reported the effects of DTx on egocentric and allocentric neglect. The differentiation of types of neglect and separate interventions is crucial in the rehabilitation process. In this article, seven studies on DTx on egocentric and allocentric neglect were reviewed. DTx, which was employed in these studies, could be classified as follows: (1) software adaptation in traditional treatment, (2) VR game using the head-mount display as treatment, and (3) the development of a new digital program like ReMoVES. In addition, more studies and more effective results were reported for egocentric neglect than for allocentric neglect. In future studies, each effect on egocentric and allocentric neglect should be identified in detail with the appropriate use of differential evaluation and long-term application of independent DTx.
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Affiliation(s)
- Woo-Hyuk Jang
- Department of Occupational Therapy, Kangwon National University, Samcheok 25949, Republic of Korea;
| | - Sang-Min Seo
- Department of Occupational Therapy, Semyung University, Jecheon 27136, Republic of Korea
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Jang WH, Hwang HM, Kim JY. Effects of Twins Therapy on Egocentric and Allocentric Neglect in Stroke Patients: A Feasibility Study. Brain Sci 2023; 13:952. [PMID: 37371430 DOI: 10.3390/brainsci13060952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/06/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
(1) Background: Existing treatment methods for neglect are concentrated on egocentric neglect and may lead to various problems such as cost/space constraints and portability. Therefore, this study seeks to determine how a new treatment (also known as twins therapy, TT) for stroke patients can improve an existing problem associated with neglect. (2) Method: A pre/post-test control group research design was used and both groups continued to receive existing rehabilitation treatment, whilst TT intervention was only added to the experimental group. TT intervention was conducted for a total of 20 sessions (1 session for 30 min/day, 5 days/week, for 4 weeks). (3) Result: There was no significant difference in the manual function test (MFT) and the Korean version of the Modified Barthel Index (K-MBI) items (p > 0.05) before and after the TT intervention. However, the score and execution time of the apple cancellation test showed a significant reduction only in the experimental group (p < 0.05). (4) Conclusion: TT not only improved egocentric neglect, but also allocentric neglect symptoms in stroke patients.
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Affiliation(s)
- Woo-Hyuk Jang
- Department of Occupational Therapy, Kangwon National University, Samcheok 25949, Republic of Korea
| | - Hyeong-Min Hwang
- Department of Occupational Therapy, Kangwon National University, Samcheok 25949, Republic of Korea
| | - Jae-Yeop Kim
- Department of Occupational Therapy, Kangwon National University, Samcheok 25949, Republic of Korea
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Bode LKG, Sprenger A, Helmchen C, Hauptmann B, Münte TF, Machner B. Combined optokinetic stimulation and cueing-assisted reading therapy to treat hemispatial neglect: A randomized controlled crossover trial. Ann Phys Rehabil Med 2023; 66:101713. [PMID: 36645965 DOI: 10.1016/j.rehab.2022.101713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/26/2022] [Accepted: 10/08/2022] [Indexed: 01/15/2023]
Abstract
BACKGROUND Hemispatial neglect is a disabling cognitive disorder following stroke and effective therapies are required. OBJECTIVES To evaluate the effects of combined optokinetic stimulation (OKS) and cueing-assisted reading therapy (READ) on the remission of hemispatial neglect following stroke. METHODS Randomized, controlled, two-period, crossover trial conducted at a German neurorehabilitation center. Twenty participants with left neglect following right hemispheric stroke (mean age 66 years (SD 11), mean time since stroke 50 days (SD 33)) finished the trial (12 received OKSREAD first, 8 CONTROL first). The intervention consisted of 15 daily sessions of OKS (20 min) and text reading assisted by a therapist providing cues (20 min). The control treatment was a same-number, same-length neuropsychological treatment not targeting visuospatial attention. Primary outcomes were the change in performance of a customized neuropsychological test battery for neglect (0% worst - 100% best) and a test of neglect-related functional disability (Catherine Bergego Scale, 0 no impairment - 30 severest impairment), assessed before and after each treatment period. Secondary outcomes were performance in the 6 single tests composing the battery (e.g., omissions in text reading, center of cancellation in the Bells test, spatial bias of fixations when freely viewing photographs) and a clinical test of anosognosia. RESULTS Overall performance in the neglect test battery improved slightly more after OKSREAD than after CONTROL (d=6%; p=0.002). The remission of neglect-related functional disability did not differ between treatments (d=-2; p=0.291). Ipsilesional fixation bias during free viewing was the only secondary outcome that was improved by OKSREAD as compared to CONTROL (d= -2.8°; p=0.005). CONCLUSION At the applied intensity, the combined OKSREAD intervention slightly attenuated the ipsilesional attention bias in persons with neglect, but it did not improve neglect-related functional disability, anosognosia, or other neglect symptoms to a clinically meaningful degree. CLINICAL TRIAL REGISTRATION URL: http://www. CLINICALTRIALS gov. Unique identifier: NCT04273620.
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Affiliation(s)
- Lisa Kunkel Genannt Bode
- Department of Neurology, University Hospitals Schleswig-Holstein, Campus Lübeck, Germany; Neurological Center Segeberger Kliniken, Bad Segeberg, Germany
| | - Andreas Sprenger
- Department of Neurology, University Hospitals Schleswig-Holstein, Campus Lübeck, Germany; Department of Psychology II, University of Lübeck, Germany
| | - Christoph Helmchen
- Department of Neurology, University Hospitals Schleswig-Holstein, Campus Lübeck, Germany
| | - Björn Hauptmann
- Neurological Center Segeberger Kliniken, Bad Segeberg, Germany; Department Performance, Neuroscience, Therapy and Health, Medical School Hamburg, Germany
| | - Thomas F Münte
- Department of Neurology, University Hospitals Schleswig-Holstein, Campus Lübeck, Germany
| | - Björn Machner
- Department of Neurology, University Hospitals Schleswig-Holstein, Campus Lübeck, Germany.
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Hildebrandt H, Notbohm A, Duning T, Schweser I. Is recovery from left-sided neglect based on changes in automatic attention? An auditory event related potentials study. APPLIED NEUROPSYCHOLOGY. ADULT 2023:1-11. [PMID: 36587828 DOI: 10.1080/23279095.2022.2163173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An automatic spatial attention deficit is the primary deficit in neglect. However, the cognitive processes enabling recovery from neglect have rarely been studied. We used event-related potentials (ERP) to analyze if recovery is based on changes in automatic attention components. Twelve sub-acute patients with left visuospatial neglect were included. They received 3 weeks of intensive treatment. ERPs were recorded using two auditory paradigms: either a tone was presented randomly to the right or left ear (ATP) or as a Posner paradigm (PP) with left to right and vice versa moving cue tones and validly and invalidly cued target tones. Patients improved significantly on neuropsychological tests and neurological scales. For the ATP, no differences were observed related to the side of stimulation, but the auditory PP showed characteristic results, that is, smaller amplitudes for left-sided targets and higher amplitudes for invalid trials. Both paradigms revealed a treatment effect, but no changes were found in the amplitudes for the two target sides, which would be expected if the treatment would affect the automatic attention bias. Recovery from neglect seems not to be associated with changes in the automatic spatial attention bias, arguing that recovery might be due to higher cognitive compensatory processes.
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Affiliation(s)
- Helmut Hildebrandt
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
- Department of Psychology, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Annika Notbohm
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
| | - Thomas Duning
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
| | - Insa Schweser
- Department of Psychology, Carl von Ossietzky University Oldenburg, Oldenburg, Germany
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Abstract
Unilateral spatial neglect (USN) is a common and disabling cognitive consequence of stroke wherein individuals demonstrate decreased response to contralesional information. Here, we provide an updated narrative review of studies that shed light on the neural mechanisms and predictors of recovery of USN. Additionally, we report a rapid review of randomized controlled trials focusing on USN intervention, both nonpharmacological and pharmacological, published in the last 5 years. Randomized controlled trials are reviewed within the context of systematic reviews and meta-analyses of USN interventions published within the same time frame. The quality of randomized controlled trials of treatment is higher compared to quality reported in previous reviews and meta-analyses. However, remaining weaknesses in participant demographic reporting, as well as small, heterogenous samples, render generalizability and cross-study interpretation a challenge. Nevertheless, evidence regarding neural mechanisms underlying USN recovery and regarding the effectiveness of targeted USN interventions is accumulating and strengthening, setting the foundation for future investigations into patient-specific factors that may influence treatment response. We identify gaps and provide suggestions for future USN intervention research.
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Affiliation(s)
- Alexandra Zezinka Durfee
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD (A.Z.D., A.E.H.)
| | - Argye E Hillis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD (A.Z.D., A.E.H.).,Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD (A.E.H.).,Department of Cognitive Science, Johns Hopkins University, Baltimore, MD (A.E.H.)
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Fukata K, Amimoto K, Shida K, Fujino Y, Osaki S, Makita S, Takahashi H. Effects of standing and walking training using a laser pointer based on stimulus-driven attention for behavioural outcome in spatial neglect: A single-case study. Neuropsychol Rehabil 2022; 32:2519-2533. [PMID: 34309494 DOI: 10.1080/09602011.2021.1956548] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The therapy for unilateral spatial neglect (USN) is unclear. This case report investigated the effect of standing and walking training using a laser pointer based on stimulus-driven attention for USN. The patient was a right-handed 79-year-old man with cardiogenic cerebral embolism in the right middle and posterior cerebral arteries. Initially, we evaluated the absence of hemiparalysis in the lower limb and sensory disorder; almost all daily activities were performed independently. Intervention effects were verified using the BABA method. The course of the four phases (B1, A1, B2, A2) was conducted for 5 days. In the B1 and B2 phases, standing and walking training using a laser pointer was performed additionally to conventional physical therapy. Outcomes were measured using the Behavioural Inattention Test conventional subtest (BIT-c), Catherine Bergego Scale (CBS), and modified Posner task (MPT). The BIT-c remained unchanged in each phase. CBS scores improved after B1 and B2. In the MPT, the reaction time in the left space reduced after B1 and B2 compared with those in the A1 and A2 control phases. In this case, training may have contributed to the improvement in the response to the neglected space and behavioural assessment of USN.
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Affiliation(s)
- Kazuhiro Fukata
- Department of Rehabilitation Centre, Saitama Medical University International Medical Centre, Saitama, Japan
| | - Kazu Amimoto
- Department of Physical Therapy, Faculty of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Kohei Shida
- Department of Rehabilitation Centre, Saitama Medical University International Medical Centre, Saitama, Japan.,Department of Physical Therapy, Faculty of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan
| | - Yuji Fujino
- Department of Physical Therapy, Faculty of Health Sciences, Juntendo University, Bunkyo-ku, Japan
| | - Shinpei Osaki
- Department of Physical Therapy, Faculty of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan.,Department of Rehabilitation, Kansai Electric Power Hospital, Osaka, Japan
| | - Shigeru Makita
- Department of Rehabilitation, Saitama Medical University International Medical Centre, Saitama, Japan
| | - Hidetoshi Takahashi
- Department of Rehabilitation, Saitama Medical University International Medical Centre, Saitama, Japan
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Hildebrandt H. Longley et al.: Non-pharmacological interventions for spatial neglect or inattention following stroke and other non-progressive brain injury. Cochrane Database of Systematic Reviews, 2021. Neuropsychol Rehabil 2022; 32:2673-2678. [PMID: 34402392 DOI: 10.1080/09602011.2021.1956977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Helmut Hildebrandt
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany.,Institute of Psychology, University of Oldenburg, Oldenburg, Germany
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Scheffels JF, Korabova S, Eling P, Kastrup A, Hildebrandt H. The Effects of Continuous vs. Intermittent Prism Adaptation Protocols for Treating Visuospatial Neglect: A Randomized Controlled Trial. Front Neurol 2021; 12:742727. [PMID: 34867725 PMCID: PMC8639507 DOI: 10.3389/fneur.2021.742727] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/29/2021] [Indexed: 11/13/2022] Open
Abstract
Visuospatial neglect may interfere with activities of daily living (ADL). Prism adaptation (PA) is one treatment option and may involve two components: recalibration (more strategic) and realignment (more implicit). We examined whether recalibration or realignment is the driving force in neglect rehabilitation using PA. In a randomized controlled trial with two recruitment series and a cross-over design, 24 neglect patients were allocated to a continuous (PA-c) or intermittent (PA-i) PA procedure. During the PA-c condition, goggles were worn without doffing. In the PA-i condition, patients donned goggles twice (first series of patients) or three times (second series) during training to induce more recalibrations. Primary outcome parameters were performance (omissions) on the Apples Cancellation Test and ADL scores. To assess the efficacy of the PA treatment, we compared effect sizes of the current study with those from three groups from previous studies at the same rehabilitation unit: (1) a passive treatment with a similar intensity, (2) a placebo treatment with a similar intensity, and (3) a PA treatment with fewer therapy sessions. Treatment conditions did not significantly predict scores on primary and most secondary outcome parameters. However, the spontaneous ipsilesional body orientation improved only in patients receiving the PA-i condition and this improvement also appeared in patients showing a strong after-effect (irrespective of condition). Effect sizes for the Apples Cancellation Test and the Functional Independence Measure were larger for both PA treatment protocols than the historical control groups. We conclude that more recalibrations during an intermittent PA treatment may have a beneficial effect on spontaneous body orientation but not on other aspects of neglect or on ADL performance. Clinical Trial Registration: German Clinical Trials Register, identifier: DRKS00018813, DRKS00021539.
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Affiliation(s)
- Jannik Florian Scheffels
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
- Department of Psychology, University of Oldenburg, Oldenburg, Germany
| | - Sona Korabova
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
- Department of Psychology, University of Oldenburg, Oldenburg, Germany
| | - Paul Eling
- Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, Netherlands
| | - Andreas Kastrup
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
| | - Helmut Hildebrandt
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
- Department of Psychology, University of Oldenburg, Oldenburg, Germany
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Longley V, Hazelton C, Heal C, Pollock A, Woodward-Nutt K, Mitchell C, Pobric G, Vail A, Bowen A. Non-pharmacological interventions for spatial neglect or inattention following stroke and other non-progressive brain injury. Cochrane Database Syst Rev 2021; 7:CD003586. [PMID: 34196963 PMCID: PMC8247630 DOI: 10.1002/14651858.cd003586.pub4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND People with spatial neglect after stroke or other brain injury have difficulty attending to one side of space. Various rehabilitation interventions have been used, but evidence of their benefit is unclear. OBJECTIVES The main objective was to determine the effects of non-pharmacological interventions for people with spatial neglect after stroke and other adult-acquired non-progressive brain injury. SEARCH METHODS We searched the Cochrane Stroke Group Trials Register (last searched October 2020), the Cochrane Central Register of Controlled Trials (CENTRAL; last searched October 2020), MEDLINE (1966 to October 2020), Embase (1980 to October 2020), the Cumulative Index to Nursing and Allied Health Literature (CINAHL; 1983 to October 2020), and PsycINFO (1974 to October 2020). We also searched ongoing trials registers and screened reference lists. SELECTION CRITERIA We included randomised controlled trials (RCTs) of any non-pharmacological intervention specifically aimed at spatial neglect. We excluded studies of general rehabilitation and studies with mixed participant groups, unless separate neglect data were available. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Review authors categorised the interventions into eight broad types deemed to be applicable to clinical practice through iterative discussion: visual interventions, prism adaptation, body awareness interventions, mental function interventions, movement interventions, non-invasive brain stimulation, electrical stimulation, and acupuncture. We assessed the quality of evidence for each outcome using the GRADE approach. MAIN RESULTS We included 65 RCTs with 1951 participants, all of which included people with spatial neglect following stroke. Most studies measured outcomes using standardised neglect assessments. Fifty-one studies measured effects on ADL immediately after completion of the intervention period; only 16 reported persisting effects on ADL (our primary outcome). One study (30 participants) reported discharge destination, and one (24 participants) reported depression. No studies reported falls, balance, or quality of life. Only two studies were judged to be entirely at low risk of bias, and all were small, with fewer than 50 participants per group. We found no definitive (phase 3) clinical trials. None of the studies reported any patient or public involvement. Visual interventions versus any control: evidence is very uncertain about the effects of visual interventions for spatial neglect based on measures of persisting functional ability in ADL (2 studies, 55 participants) (standardised mean difference (SMD) -0.04, 95% confidence interval (CI) -0.57 to 0.49); measures of immediate functional ability in ADL; persisting standardised neglect assessments; and immediate neglect assessments. Prism adaptation versus any control: evidence is very uncertain about the effects of prism adaptation for spatial neglect based on measures of persisting functional ability in ADL (2 studies, 39 participants) (SMD -0.29, 95% CI -0.93 to 0.35); measures of immediate functional ability in ADL; persisting standardised neglect assessments; and immediate neglect assessments. Body awareness interventions versus any control: evidence is very uncertain about the effects of body awareness interventions for spatial neglect based on measures of persisting functional ability in ADL (5 studies, 125 participants) (SMD 0.61, 95% CI 0.24 to 0.97); measures of immediate functional ability in ADL; persisting standardised neglect assessments; immediate neglect assessments; and adverse events. Mental function interventions versus any control: we found no trials of mental function interventions for spatial neglect reporting on measures of persisting functional ability in ADL. Evidence is very uncertain about the effects of mental function interventions on spatial neglect based on measures of immediate functional ability in ADL and immediate neglect assessments. Movement interventions versus any control: we found no trials of movement interventions for spatial neglect reporting on measures of persisting functional ability in ADL. Evidence is very uncertain about the effects of body awareness interventions on spatial neglect based on measures of immediate functional ability in ADL and immediate neglect assessments. Non-invasive brain stimulation (NIBS) versus any control: evidence is very uncertain about the effects of NIBS on spatial neglect based on measures of persisting functional ability in ADL (3 studies, 92 participants) (SMD 0.35, 95% CI -0.08 to 0.77); measures of immediate functional ability in ADL; persisting standardised neglect assessments; immediate neglect assessments; and adverse events. Electrical stimulation versus any control: we found no trials of electrical stimulation for spatial neglect reporting on measures of persisting functional ability in ADL. Evidence is very uncertain about the effects of electrical stimulation on spatial neglect based on immediate neglect assessments. Acupuncture versus any control: we found no trials of acupuncture for spatial neglect reporting on measures of persisting functional ability in ADL. Evidence is very uncertain about the effects of acupuncture on spatial neglect based on measures of immediate functional ability in ADL and immediate neglect assessments. AUTHORS' CONCLUSIONS The effectiveness of non-pharmacological interventions for spatial neglect in improving functional ability in ADL and increasing independence remains unproven. Many strategies have been proposed to aid rehabilitation of spatial neglect, but none has yet been sufficiently researched through high-quality fully powered randomised trials to establish potential or adverse effects. As a consequence, no rehabilitation approach can be supported or refuted based on current evidence from RCTs. As recommended by a number of national clinical guidelines, clinicians should continue to provide rehabilitation for neglect that enables people to meet their rehabilitation goals. Clinicians and stroke survivors should have the opportunity, and are strongly encouraged, to participate in research. Future studies need to have appropriate high-quality methodological design, delivery, and reporting to enable appraisal and interpretation of results. Future studies also must evaluate outcomes of importance to patients, such as persisting functional ability in ADL. One way to improve the quality of research is to involve people with experience with the condition in designing and running trials.
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Affiliation(s)
- Verity Longley
- Faculty of Health, Psychology and Social Care, Manchester Metropolitan University, Manchester, UK
| | - Christine Hazelton
- Nursing, Midwifery and Allied Health Professions Research Unit, Glasgow Caledonian University, Glasgow, UK
| | - Calvin Heal
- Centre for Biostatistics, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Alex Pollock
- Nursing, Midwifery and Allied Health Professions Research Unit, Glasgow Caledonian University, Glasgow, UK
| | | | - Claire Mitchell
- Division of Human Communication, Development & Hearing, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Gorana Pobric
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK
| | - Andy Vail
- Centre For Biostatistics, Manchester Academic Health Science Centre, Manchester, UK, University of Manchester, Manchester, UK
| | - Audrey Bowen
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic Health Science Centre, Northern Care Alliance & University of Manchester, Manchester, UK
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Turgut N, Jansen AL, Nielsen J, Heber I, Eling P, Hildebrandt H. Repeated application of the covert shift of attention task improves endogenous but not exogenous attention in patients with unilateral visuospatial inattention. Brain Cogn 2021; 151:105732. [PMID: 33895466 DOI: 10.1016/j.bandc.2021.105732] [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: 03/27/2021] [Revised: 04/04/2021] [Accepted: 04/06/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Most neglect treatment studies focus on automatic re-orientation procedures, assuming a deficit in automatic processes. We compare an automatic- and a controlled procedure, using the endogenous and exogenous variants of Posner's covert shift of attention task. METHOD In two experiments, neglect patients and patients with a right hemispherical stroke without neglect performed three blocks of Posner's covert shift of attention task (Posner Task) on two days. In Study 1 we used endogenous cues, in Study 2, exogenous cues. RESULTS In the endogenous task, neglect patients improved significantly with valid left-sided cues between block 1 and 2 on Day 1, subsequently showing a plateauing. They also showed a gradual improvement on invalid trials on both days. In the exogenous condition, all participants responded only increasingly faster on trials with a long stimulus onset asynchrony. Practicing on both tasks led to fewer omissions for left-sided targets, minimally in the exogenous and clearly in the endogenous condition. CONCLUSION In line with prior neuroanatomical studies, our study shows that practicing an endogenous, but not an exogenous, visuospatial attention task leads to significant improvements in neglect patients, especially for invalid trials, suggesting that neglect treatments based on top-down strategies should be given more attention.
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Affiliation(s)
- Nergiz Turgut
- Instituto de Neurociencias, Universidad San Francisco de Quito, Quito, Ecuador
| | - Anna-Lena Jansen
- Department of Psychology, University of Oldenburg, Oldenburg, Germany
| | - Jörn Nielsen
- Department of Cognitive Rehabilitation, Neurological Rehabilitation Centre Godeshöhe, Bonn, Germany; Department of Medical Psychology
- Neuropsychology and Gender Studies, Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Ines Heber
- Department of Neurological Rehabilitation, Median Klinik Wilhelmshaven, Wilhelmshaven, Germany
| | - Paul Eling
- Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, the Netherlands
| | - Helmut Hildebrandt
- Department of Psychology, University of Oldenburg, Oldenburg, Germany; Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany.
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Bedside video-oculographic evaluation of eye movements in acute supratentorial stroke patients: A potential biomarker for hemispatial neglect. J Neurol Sci 2021; 425:117442. [PMID: 33857735 DOI: 10.1016/j.jns.2021.117442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/25/2021] [Accepted: 04/05/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND PURPOSE The presence of hemispatial neglect adversely affects functional outcomes in stroke patients; consequently, it warrants early targeted rehabilitative intervention. Nevertheless, hemispatial neglect in the acute phase of stroke has often been underdiagnosed. In this study, we aimed to detect hemispatial neglect at the bedside in acute stroke patients by measuring eye movements using video-oculography (VOG). METHODS Forty-seven patients with acute unilateral supratentorial stroke were enrolled. We quantitatively measured horizontal saccade (latency, velocity, and amplitude) and smooth pursuit (gain) at the bedside using VOG and compared these variables with scores on the Behavioral Inattention Test (BIT), a screening battery to assess hemispatial neglect. RESULTS Contralesional saccade latency, velocity, and amplitude, and ipsilesional smooth pursuit gain were suppressed compared with those in the opposite directions (p = 0.08, 0.02, 0.04, and 0.02, respectively). These directional ocular hypokinesia values correlated with the total BIT score (correlation coefficients -0.53, 0.48, 0.51, and 0.39, respectively). The association was significant even after adjusting for age and stroke severity. CONCLUSIONS Eye movement measurements performed using VOG significantly correlated with the tendency for hemispatial neglect in acute supratentorial stroke patients. Bedside VOG measurement may be a simple biomarker for detecting hemispatial neglect even in patients in the supine position during the acute phase of stroke.
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Wang T, Peeters R, Mantini D, Gillebert CR. Modulating the interhemispheric activity balance in the intraparietal sulcus using real-time fMRI neurofeedback: Development and proof-of-concept. NEUROIMAGE-CLINICAL 2021; 28:102513. [PMID: 33396000 PMCID: PMC7941162 DOI: 10.1016/j.nicl.2020.102513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/15/2020] [Accepted: 11/20/2020] [Indexed: 10/31/2022]
Abstract
The intraparietal sulcus (IPS) plays a key role in the distribution of attention across the visual field. In stroke patients, an imbalance between left and right IPS activity has been related to a spatial bias in visual attention characteristic of hemispatial neglect. In this study, we describe the development and implementation of a real-time functional magnetic resonance imaging neurofeedback protocol to noninvasively and volitionally control the interhemispheric IPS activity balance in neurologically healthy participants. Six participants performed three neurofeedback training sessions across three weeks. Half of them trained to voluntarily increase brain activity in left relative to right IPS, while the other half trained to regulate the IPS activity balance in the opposite direction. Before and after the training, we estimated the distribution of attention across the visual field using a whole and partial report task. Over the course of the training, two of the three participants in the left-IPS group increased the activity in the left relative to the right IPS, while the participants in the right-IPS group were not able to regulate the interhemispheric IPS activity balance. We found no evidence for a decrease in resting-state functional connectivity between left and right IPS, and the spatial distribution of attention did not change over the course of the experiment. This study indicates the possibility to voluntarily modulate the interhemispheric IPS activity balance. Further research is warranted to examine the effectiveness of this technique in the rehabilitation of post-stroke hemispatial neglect.
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Affiliation(s)
- Tianlu Wang
- Brain and Cognition, KU Leuven, Leuven, Belgium; Leuven Brain Institute, KU Leuven, Leuven, Belgium
| | - Ronald Peeters
- Radiology Department, University Hospitals Leuven, Leuven, Belgium
| | - Dante Mantini
- Research Centre for Motor Control and Neuroplasticity, KU Leuven, Leuven, Belgium; Brain Imaging and Neural Dynamics Research Group, IRCCS San Camillo Hospital, Venice, Italy
| | - Céline R Gillebert
- Brain and Cognition, KU Leuven, Leuven, Belgium; Leuven Brain Institute, KU Leuven, Leuven, Belgium.
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Wang H, Su Q, Yan Z, Lu F, Zhao Q, Liu Z, Zhou F. Rehabilitation Treatment of Motor Dysfunction Patients Based on Deep Learning Brain-Computer Interface Technology. Front Neurosci 2020; 14:595084. [PMID: 33192282 PMCID: PMC7642128 DOI: 10.3389/fnins.2020.595084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 09/08/2020] [Indexed: 01/20/2023] Open
Abstract
In recent years, brain-computer interface (BCI) is expected to solve the physiological and psychological needs of patients with motor dysfunction with great individual differences. However, the classification method based on feature extraction requires a lot of prior knowledge when extracting data features and lacks a good measurement standard, which makes the development of BCI. In particular, the development of a multi-classification brain-computer interface is facing a bottleneck. To avoid the blindness and complexity of electroencephalogram (EEG) feature extraction, the deep learning method is applied to the automatic feature extraction of EEG signals. It is necessary to design a classification model with strong robustness and high accuracy for EEG signals. Based on the research and implementation of a BCI system based on a convolutional neural network, this article aims to design a brain-computer interface system that can automatically extract features of EEG signals and classify EEG signals accurately. It can avoid the blindness and time-consuming problems caused by the machine learning method based on feature extraction of EEG data due to the lack of a large amount of prior knowledge.
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Affiliation(s)
| | - Qinglun Su
- Department of Rehabilitation Medicine, The First People’s Hospital of Lianyungang, Lianyungang, China
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Umeonwuka C, Roos R, Ntsiea V. Current trends in the treatment of patients with post-stroke unilateral spatial neglect: a scoping review. Disabil Rehabil 2020; 44:2158-2185. [DOI: 10.1080/09638288.2020.1824026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Chuka Umeonwuka
- Department of Physiotherapy, Faculty of Health Science, University of Witwatersrand, Johannesburg, South Africa
| | - Ronel Roos
- Department of Physiotherapy, Faculty of Health Science, University of Witwatersrand, Johannesburg, South Africa
- Department of Physiotherapy, The Wits-JBI Centre for Evidenced-Based Practice: A Joanna Briggs Institute Affiliated Group, Johannesburg, South Africa
| | - Veronica Ntsiea
- Department of Physiotherapy, Faculty of Health Science, University of Witwatersrand, Johannesburg, South Africa
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Knobel SEJ, Gyger NT, Nyffeler T, Cazzoli D, Muri RM, Nef T. Development and evaluation of a new virtual reality-based audio-tactile cueing-system to guide visuo-spatial attention. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2020; 2020:3192-3195. [PMID: 33018683 DOI: 10.1109/embc44109.2020.9176516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Spatial attention is an important feature for filtering everyday inputs. The direction of the attention can be guided by the use of visual, auditory or tactile stimuli. The literature regarding the effect of cueing spatial attention in visual search tasks consistently shows an improvement in accuracy and reaction time. So far, most studies have used two-dimensional setups, for which ecological validity may be questioned. In this study with healthy participants, we investigated the feasibility of a virtual reality-based setup. We examined the feasibility and compared the performance in a visual search task as auditory, tactile or combined cues were given. The results revealed high usability and a significantly higher detection rate for combined audio-tactile cues compared to auditory cues alone.
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Schenke N, Franke R, Puschmann S, Turgut N, Kastrup A, Thiel CM, Hildebrandt H. Can auditory cues improve visuo-spatial neglect? Results of two pilot studies. Neuropsychol Rehabil 2020; 31:710-730. [PMID: 32102605 DOI: 10.1080/09602011.2020.1727931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Although neglect is known to be a multimodal deficit, current interventions often address the visual modality only. Experimental studies, however, found that neglect patients can partially overcome their spatial inattention temporarily when being exposed to auditory cues that move towards the neglected side of space. Two pilot studies investigated the impact of dynamic auditory cueing on egocentric neglect severity in a clinical-therapeutic setting. In both studies, the patient groups received 15 sessions of intervention. Study 1, designed as double-blinded trial with a historical control group, targeted severely impaired early-acute patients who listened to music or audio books which were presented as moving dynamically from right to left. Results showed a reduction in egocentric neglect severity that persisted after therapy termination in the intervention but not in the historical control group. In study 2, based on the comparison with reported effect sizes of previous studies, dynamic meaningful auditory cues and optokinetic stimulation were combined in a computer-based training. Both studies found a significant reduction of neglect severity. Results provide evidence for the reduction of egocentric neglect severity after repetitive auditory cueing therapy in both severely and moderately impaired patients. Our promising findings should be verified thoroughly in randomized-controlled trials.
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Affiliation(s)
- N Schenke
- Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany.,Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
| | - R Franke
- Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany
| | - S Puschmann
- Department of Psychology, University of Lübeck, Lübeck, Germany
| | - N Turgut
- Institute of Neurosciences, University San Francisco de Quito, Quito, Ecuador
| | - A Kastrup
- Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
| | - C M Thiel
- Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany.,Cluster of Excellence "Hearing4all", Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany
| | - H Hildebrandt
- Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, Germany.,Department of Neurology, Klinikum Bremen-Ost, Bremen, Germany
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