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Hemineglect

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https://www.readbyqxmd.com/read/28875598/recovery-of-proprioception-in-the-upper-extremity-by-robotic-mirror-therapy-a-clinical-pilot-study-for-proof-of-concept
#1
Hyung Seok Nam, Sukgyu Koh, Jaewon Beom, Yoon Jae Kim, Jang Woo Park, Eun Sil Koh, Sun Gun Chung, Sungwan Kim
A novel robotic mirror therapy system was recently developed to provide proprioceptive stimulus to the hemiplegic arm during a mirror therapy. Validation of the robotic mirror therapy system was performed to confirm its synchronicity prior to the clinical study. The mean error angle range between the intact arm and the robot was 1.97 to 4.59 degrees. A 56-year-old male who had right middle cerebral artery infarction 11 months ago received the robotic mirror therapy for ten 30-minute sessions during 2 weeks...
October 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28842390/user-perspectives-on-exergames-designed-to-explore-the-hemineglected-space-for-stroke-patients-with-visuospatial-neglect-usability-study
#2
Bernadette C Tobler-Ammann, Elif Surer, Ruud H Knols, N Alberto Borghese, Eling D de Bruin
BACKGROUND: Visuospatial neglect due to stroke is characterized by the inability to perceive stimuli emerging in the area opposite to the side of brain damage. Besides adopting conventional rehabilitation methods to treat neglect symptoms, the use of virtual reality (VR) is becoming increasingly popular. We designed a series of 9 exergames aimed to improve exploration of the neglected side of space. When new VR interventions are designed, it is important to assess the usability aspects of such management strategies within the target population...
August 25, 2017: JMIR Serious Games
https://www.readbyqxmd.com/read/28842388/exergames-encouraging-exploration-of-hemineglected-space-in-stroke-patients-with-visuospatial-neglect-a-feasibility-study
#3
Bernadette C Tobler-Ammann, Elif Surer, Eling D de Bruin, Marco Rabuffetti, N Alberto Borghese, Renato Mainetti, Michele Pirovano, Lia Wittwer, Ruud H Knols
BACKGROUND: Use of exergames can complement conventional therapy and increase the amount and intensity of visuospatial neglect (VSN) training. A series of 9 exergames-games based on therapeutic principles-aimed at improving exploration of the neglected space for patients with VSN symptoms poststroke was developed and tested for its feasibility. OBJECTIVES: The goal was to determine the feasibility of the exergames with minimal supervision in terms of (1) implementation of the intervention, including adherence, attrition and safety, and (2) limited efficacy testing, aiming to document possible effects on VSN symptoms in a case series of patients early poststroke...
August 25, 2017: JMIR Serious Games
https://www.readbyqxmd.com/read/28782543/the-active-construction-of-the-visual-world
#4
REVIEW
Thomas Parr, Karl J Friston
What we see is fundamentally dependent on where we look. Despite this seemingly obvious statement, many accounts of the neurobiology underpinning visual perception fail to consider the active nature of how we sample our sensory world. This review offers an overview of the neurobiology of visual perception, which begins with the control of saccadic eye movements. Starting from here, we can follow the anatomy backwards, to try to understand the functional architecture of neuronal networks that support the interrogation of a visual scene...
August 3, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28611828/heads-up-a-novel-provocative-maneuver-to-guide-acute-ischemic-stroke-management
#5
Latisha K Ali, Julius K Weng, Sidney Starkman, Jeffrey L Saver, Doojin Kim, Bruce Ovbiagele, Brian H Buck, Nerses Sanossian, Paul Vespa, Oh Young Bang, Reza Jahan, Gary R Duckwiler, Fernando Viñuela, David S Liebeskind
BACKGROUND: A common dilemma in acute ischemic stroke management is whether to pursue recanalization therapy in patients with large vessel occlusions but minimal neurologic deficits. We describe and report preliminary experience with a provocative maneuver, i.e. 90-degree elevation of the head of bed for 30 min, which stresses collaterals and facilitates decision-making. METHODS: A prospective cohort study of <7.5 h of acute anterior circulation territory ischemia patients with minimal deficits despite middle cerebral artery (MCA) or internal carotid artery (ICA) occlusive disease...
March 2017: Interventional Neurology
https://www.readbyqxmd.com/read/28411260/the-fast-ed-app-a-smartphone-platform-for-the-field-triage-of-patients-with-stroke
#6
Raul G Nogueira, Gisele S Silva, Fabricio O Lima, Yu-Chih Yeh, Carol Fleming, Daniel Branco, Arthur H Yancey, Jonathan J Ratcliff, Robert Keith Wages, Earnest Doss, Mehdi Bouslama, Jonathan A Grossberg, Diogo C Haussen, Teppei Sakano, Michael R Frankel
BACKGROUND AND PURPOSE: The Emergency Medical Services field triage to stroke centers has gained considerable complexity with the recent demonstration of clinical benefit of endovascular treatment for acute ischemic stroke. We sought to describe a new smartphone freeware application designed to assist Emergency Medical Services professionals with the field assessment and destination triage of patients with acute ischemic stroke. METHODS: Review of the application's platform and its development as well as the different variables, assessments, algorithms, and assumptions involved...
May 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28385053/using-real-time-fmri-neurofeedback-to-restore-right-occipital-cortex-activity-in-patients-with-left-visuo-spatial-neglect-proof-of-principle-and-preliminary-results
#7
Fabien Robineau, Arnaud Saj, Rémi Neveu, Dimitri Van De Ville, Frank Scharnowski, Patrik Vuilleumier
Hemineglect is common after right parietal stroke, characterised by impaired awareness for stimuli in left visual space, with suppressed neural activity in the right visual cortex due to losses in top-down attention signals. Here we sought to assess whether hemineglect patients are able to up-regulate their right visual cortex activity using auditory real-time functional magnetic resonance imaging (rt-fMRI) neurofeedback. We also examined any effect of this training procedure on neglect severity. Two different neurofeedback methods were used...
April 6, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28272901/attentional-impairments-following-right-hemisphere-damage-with-and-without-hemispatial-neglect-a-comparative-study
#8
Cristina Elizabeth Izábal Wong, Laura Damiani Branco, Charles Cotrena, Yves Joanette, Rochele Paz Fonseca
This study aimed to evaluate the performance of patients with right hemisphere damage (RHD) with or without hemispatial neglect (HN) on a cancellation task. The study involved 31 control participants and 31 patients with RHD, matched by age, education, and frequency of reading and writing habits. The numbers of omission and random errors as well as the mean time to task completion were compared between adults with and without RHD, as well as between patients with and without HN. The latter made more left-sided omission errors, and more overall omission errors, than patients with RHD and no HN...
March 8, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28237912/vestibular-stimulation-improves-insight-into-illness-in-schizophrenia-spectrum-disorders
#9
Philip Gerretsen, David D Pothier, Carolyn Falls, Maxine Armstrong, Thushanthi Balakumar, Hiroyuki Uchida, David C Mamo, Bruce G Pollock, Ariel Graff-Guerrero
Impaired insight into illness (IMP-INS) is common among individuals with schizophrenia spectrum disorders (SSD), contributing to medication nonadherence and poor clinical outcomes. Caloric vestibular simulation (CVS) is typically used to assess peripheral vestibular system function. Left cold CVS is also a transiently effective treatment for IMP-INS and hemineglect secondary to right brain hemisphere stroke, and possibly for IMP-INS and mood stabilization in patients with SSD. Participants with SSD and moderate-to-severe IMP-INS participated in an exploratory double blind, crossover, randomized controlled study of the effects of CVS on IMP-INS...
May 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28003947/the-use-of-the-target-cancellation-task-to-identify-eloquent-visuospatial-regions-in-awake-craniotomies-technical-note
#10
Andrew K Conner, Chad Glenn, Joshua D Burks, Tressie McCoy, Phillip A Bonney, Ahmed A Chema, Justin L Case, Scott Brunner, Cordell Baker, Michael Sughrue
The success of awake craniotomies relies on the patient's performance of function-specific tasks that are simple, quick, and reproducible. Intraoperative identification of visuospatial function through cortical and subcortical mapping has utilized a variety of intraoperative tests, each with its own benefits and drawbacks. In light of this, we developed a simple software program that aids in preventing neglect by simulating a target-cancellation task on a portable electronic device. In this report, we describe the interactive target cancellation task and have reviewed seven consecutive patients who underwent awake craniotomy for parietal and/or posterior temporal infiltrating brain tumors of the non-dominant hemisphere...
November 17, 2016: Curēus
https://www.readbyqxmd.com/read/27590188/rehabilitation-of-hemineglect-of-the-left-arm-using-movement-detection-bracelets-activating-a-visual-and-acoustic-alarm
#11
Jose M Trejo-Gabriel-Galan, V Rogel-Melgosa, S Gonzalez, J Sedano, J R Villar, N Arenaza-Basterrechea
BACKGROUND: Hemineglect is frequent after right hemisphere stroke and prevents functional independence, but effective rehabilitation interventions are lacking. Our objective was to determine if a visual-acoustic alarm in the hemineglect arm activated by a certain discrepancy in movement of both hands can enhance neglect arm use in five tasks of daily living. METHODS: In this pre-post intervention study 9 stroke patients with residual hemineglect of the arm were trained for 7 days in five bimanual tasks of daily living: carrying a tray, button fastening, cutting food with knife and fork, washing the face with both hands and arm sway while walking...
September 2, 2016: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/27445734/persistence-of-gender-related-effects-on-visuo-spatial-and-verbal-working-memory-in-right-brain-damaged-patients
#12
Laura Piccardi, Alessandro Matano, Giovanni D'Antuono, Dario Marin, Paola Ciurli, Chiara Incoccia, Paola Verde, Paola Guariglia
The aim of the present study was to verify if gender differences in verbal and visuo-spatial working memory would persist following right cerebral lesions. To pursue our aim we investigated a large sample (n. 346) of right brain-damaged patients and healthy participants (n. 272) for the presence of gender effects in performing Corsi and Digit Test. We also assessed a subgroup of patients (n. 109) for the nature (active vs. passive) of working memory tasks. We tested working memory (WM) administering the Corsi Test (CBT) and the Digit Span (DS) using two different versions: forward (fCBT and fDS), subjects were required to repeat stimuli in the same order that they were presented; and backward (bCBT and bDS), subjects were required to repeat stimuli in the opposite order of presentation...
2016: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/27390426/association-between-daily-activities-process-skills-and-motor-skills-in-community-dwelling-patients-after-left-hemiparetic-stroke
#13
Sinae Ahn
[Purpose] The purpose of this study was to evaluate the relationships between daily activities, information processing, and motor skills in individuals with hemineglect after having a left hemiparetic stroke. [Subjects and Methods] The instrumental activities of daily living of 35 patients (22 male and 13 female; age: 57.1 ± 16.9 years) with hemineglect after having a left hemiparetic stroke were assessed by using three clinical measurement tools, including activity card sorting, assessment of motor and process skills, and the modified Barthel Index...
June 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27301945/eligibility-and-predictors-for-acute-revascularization-procedures-in-a-stroke-center
#14
Peter Vanacker, Dimitris Lambrou, Ashraf Eskandari, Pascal J Mosimann, Ali Maghraoui, Patrik Michel
BACKGROUND AND PURPOSE: Endovascular treatment (EVT) is a new standard of care for selected, large vessel occlusive strokes. We aimed to determine frequency of potentially eligible patients for intravenous thrombolysis (IVT) and EVT in comprehensive stroke centers. In addition, predictors of EVT eligibility were derived. METHODS: Patients from a stroke center-based registry (2003-2014), admitted within 24 hours of last proof of usual health, were selected if they had all data to determine IVT and EVT eligibility according to American Heart Association/American Stroke Association (AHA/ASA) guidelines (class I-IIa recommendations)...
July 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27183008/is-the-patient-able-to-watch-tv-or-read-the-newspaper-a-functional-semi-structured-scale-to-observe-hemineglect-symptoms-in-activities-of-daily-living-h-adl
#15
L Piccardi, L Magnotti, A Tanzilli, M Aloisi, P Guariglia
We developed a functional semi-structured scale to observe Hemineglect symptoms in Activities of Daily Living (H-ADL). The scale could assist clinicians in assessing rehabilitation priorities aimed at correcting any persisting errors or omissions. In addition, the scale could also be used by caregivers to observe patients' progress and improve their participation. Two groups of right brain-damaged patients (25 with hemineglect; 27 without hemineglect) were tested twice: at admission and before discharge from hospital...
November 2016: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/27129436/spontaneous-ocular-positioning-during-visual-imagery-in-patients-with-hemianopia-and-or-hemineglect
#16
Maryam Fourtassi, Gilles Rode, Caroline Tilikete, Laure Pisella
Spontaneous eye movements during imagery are not random and can be used to study and reveal mental visualization processes (Fourtassi et al., 2013; Johansson et al. 2006). For example, we previously showed that during memory recall of French towns via imagery healthy individuals looks straight ahead when recalling Paris and their subsequent gaze positions are significantly correlated with the real GPS coordinates of the recalled towns. This correlation suggests that memory retrieval is done via depictive representations as it is never found when the towns are recalled using verbal fluency...
June 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27018452/effect-of-sleep-deprivation-and-low-arousal-on-eye-movements-and-spatial-attention
#17
Bruno Fimm, Andrea Blankenheim
Research on the neural underpinnings of attention repeatedly revealed a predominant role of the right hemisphere for alertness and visuo-spatial attention. Furthermore, previous studies demonstrated an impairment of covert attentional orienting to the left with reduced alertness or time-on-task. However, recent and preliminary evidence suggests that this arousal-dependent attentional asymmetry cannot be observed in overt orienting. Thus, in the present study we repeatedly measured eye movements in experimental paradigms with varying attentional demands repeatedly every 4h over 24h in total in healthy subjects undergoing sleep deprivation...
November 2016: Neuropsychologia
https://www.readbyqxmd.com/read/26982204/large-arterial-occlusive-strokes-as-a-medical-emergency-need-to-accurately-predict-clot-location
#18
Peter Vanacker, Mohamed Faouzi, Ashraf Eskandari, Philippe Maeder, Reto Meuli, Patrik Michel
BACKGROUND: Endovascular treatment for acute ischemic stroke with a large intracranial occlusion was recently shown to be effective. Timely knowledge of the presence, site, and extent of arterial occlusions in the ischemic territory has the potential to influence patient selection for endovascular treatment. We aimed to find predictors of large vessel occlusive strokes, on the basis of available demographic, clinical, radiological, and laboratory data in the emergency setting. METHODS: Patients enrolled in ASTRAL registry with acute ischemic stroke and computed tomography (CT)-angiography within 12 h of stroke onset were selected and categorized according to occlusion site...
October 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/26958750/prediction-of-large-vessel-occlusions-in-acute-stroke-national-institute-of-health-stroke-scale-is-hard-to-beat
#19
Peter Vanacker, Mirjam R Heldner, Michael Amiguet, Mohamed Faouzi, Patrick Cras, George Ntaios, Marcel Arnold, Heinrich P Mattle, Jan Gralla, Urs Fischer, Patrik Michel
OBJECTIVES: Endovascular treatment for acute ischemic stroke with a large vessel occlusion was recently shown to be effective. We aimed to develop a score capable of predicting large vessel occlusion eligible for endovascular treatment in the early hospital management. DESIGN: Retrospective, cohort study. SETTING: Two tertiary, Swiss stroke centers. PATIENTS: Consecutive acute ischemic stroke patients (1,645 patients; Acute STroke Registry and Analysis of Lausanne registry), who had CT angiography within 6 and 12 hours of symptom onset, were categorized according to the occlusion site...
June 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/26889731/functional-cerebral-space-theory-towards-an-integration-of-theory-and-mechanisms-of-left-hemineglect-anosognosia-and-anosodiaphoria
#20
Andrew J Smith, Ransom W Campbell, Patti Kelly Harrison, David W Harrison
BACKGROUND: The current case study presents a 43 year old African American woman admitted to a Tertiary Care Rehabilitation unit at a major medical center for concerns over left-sided anesthesia and weakness. Head scans indicate a right middle cerebral arterial distribution infarct altering blood flow in temporal, parietal, and occipital regions in the right cerebral hemisphere. OBJECTIVE: Physician and therapist reports (i.e., speech and occupational therapists) referred the patient for a neuropsychological evaluation for concerns over the patient's capacity to recognize the severity of her deficits and self-care, with potential rule-outs indicated by the extant literature on right CVA for anosognosia, anosodiaphoria, and left hemibody/hemispace neglect...
2016: NeuroRehabilitation
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