Read by QxMD icon Read

Unilateral spatial neglect

Kazuhiro Yasuda, Daisuke Muroi, Mizuki Hirano, Kenta Saichi, Hiroyasu Iwata
In clinical practice, therapists often encounter cases of unilateral spatial neglect (USN) observed in far and near space. In this case report, immersive virtual reality (VR) technology was adopted as a therapy tool in a patient with stroke with severe near and far space neglect. Neuropsychological tests in near and far space as well as the Catherine Bergego Scale (CBS), as an index of neglect in daily living, were measured preintervention and postintervention. Improvement of neuropsychological tests, particularly in far space, was clearly demonstrated postintervention...
March 9, 2018: BMJ Case Reports
Giuseppe Vallar, Elena Calzolari
Unilateral spatial neglect is a disabling neurologic deficit, most frequent and severe after right-hemispheric lesions. In most patients neglect involves the left side of space, contralateral to a right-hemispheric lesion. About 50% of stroke patients exhibit neglect in the acute phase. Patients fail to orient, respond to, and report sensory events occurring in the contralateral sides of space and of the body, to explore these portions of space through movements by action effectors (eye, limbs), and to move the contralateral limbs...
2018: Handbook of Clinical Neurology
Rebeca Lauren Emerson, Alberto García-Molina, Jaume López Carballo, Juan García Fernández, Celeste Aparicio-López, Junquera Novo, Rocío Sánchez-Carrión, Antonia Enseñat-Cantallops, Jordi Peña-Casanova
The objective of this study was to examine visual scanning performance in patients with Unilateral Spatial Neglect (USN) in a visual search task. Thirty-one right hemisphere stroke patients with USN were recruited. They performed a dynamic visual search task with two conditions, with and without distractors, while eye movements were monitored with an eye-tracker. The main goal of the task was to select target stimuli that appeared from the top of the screen and moved vertically downward. Target detection and visual scanning percentage were assessed over two hemispaces (right, left) on two conditions (distractor, no distractor)...
February 22, 2018: Applied Neuropsychology. Adult
Edwin S Dalmaijer, Korina M S Li, Nikos Gorgoraptis, Alexander P Leff, David L Cohen, Andrew D Parton, Masud Husain, Paresh A Malhotra
OBJECTIVE: Unilateral neglect is a poststroke disorder that impacts negatively on functional outcome and lacks established, effective treatment. This multicomponent syndrome is characterised by a directional bias of attention away from contralesional space, together with impairments in several cognitive domains, including sustained attention and spatial working memory. This study aimed to test the effects of guanfacine, a noradrenergic alpha-2A agonist, on ameliorating aspects of neglect...
February 7, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
Tatiana Ogourtsova, Philippe Archambault, Samir Sangani, Anouk Lamontagne
BACKGROUND: Unilateral spatial neglect (USN) is a highly prevalent and disabling poststroke impairment. USN is traditionally assessed with paper-and-pencil tests that lack ecological validity, generalization to real-life situations and are easily compensated for in chronic stages. Virtual reality (VR) can, however, counteract these limitations. OBJECTIVE: We aimed to examine the feasibility of a novel assessment of USN symptoms in a functional shopping activity, the Ecological VR-based Evaluation of Neglect Symptoms (EVENS)...
January 1, 2018: Neurorehabilitation and Neural Repair
Yanli Li, Jimin Xu, Lanqun Liu, Mingyu Li, Huying Lu, Honglei Chen, Huilan Li, Zhigang Chen
OBJECTIVE: To observe the impacts on post-stroke unilateral spatial neglect treated with acupuncture for "regaining consciousness, benefiting marrow and opening orifices" and rehabilitation. METHODS: Forty patients of post-stroke unilateral spatial neglect were randomized into an observation group and a control group, 20 cases in each one. In the observation group, acupuncture was applied to the acupoints for "regaining consciousness, benefiting marrow and opening orifices", named Baihui (GV 20), Sishencong (EX-HN 1), Benshen (GB 13), Shenting (GV 24), and the bilateral yuan-primary points and luo-connecting points of the heart meridian, pericardium meridian and kidney meridian, as well as the acupoints along the affected meridians...
September 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
Elena Calzolari, Federica Albini, Nadia Bolognini, Giuseppe Vallar
Visuo-motor adaptation to optical prisms displacing the visual scene (prism adaptation, PA) is a method used for investigating visuo-motor plasticity in healthy individuals and, in clinical settings, for the rehabilitation of unilateral spatial neglect. In the standard paradigm, the adaptation phase involves repeated pointings to visual targets, while wearing optical prisms displacing the visual scene laterally. Here we explored differences in PA, and its aftereffects (AEs), as related to the sensory modality of the target...
2017: Frontiers in Human Neuroscience
Antonio Carota, Julien Bogousslavsky
A right "minor hemisphere" does not exist as the right hemisphere is dominant for awareness (nosognosia), spatial attention, emotional regulation, facial and voice expressions, visual recognition, and topographical orientation. Without the right hemisphere, the world would be flat, deprived of general and spatial attentions, pointing preferentially to the right side of the space, lacking visual experiences and emotions, exhibiting diminished awareness of the self and environment. Clinical-related syndromes of the right hemisphere are unilateral spatial neglect, object and face visual agnosia, the anosognosia for hemiparesis and/or hemianopia, misidentification syndromes, mania, and other obsessions for the food and the body...
2018: Frontiers of Neurology and Neuroscience
Tatiana Ogourtsova, Philippe S Archambault, Anouk Lamontagne
BACKGROUND: Hemineglect, defined as a failure to attend to the contralesional side of space, is a prevalent and disabling post-stroke deficit. Conventional hemineglect assessments lack sensitivity as they contain mainly non-functional tasks performed in near-extrapersonal space, using static, two-dimensional methods. This is of concern given that hemineglect is a strong predictor for functional deterioration, limited post-stroke recovery, and difficulty in community reintegration. With the emerging field of virtual reality, several virtual tools have been proposed and have reported better sensitivity in neglect-related deficits detection than conventional methods...
November 7, 2017: Disability and Rehabilitation
Ángel Sánchez-Cabeza, Elisabet Huertas-Hoyas, Nuria Máximo-Bocanegra, Rosa María Martínez-Piédrola, Marta Pérez-de-Heredia-Torres, Jorge Alegre-Ayala
Objective: To adapt, validate, and translate the Behavioral Inattention Test as an assessment tool for Spanish individuals with unilateral spatial neglect. Design: A cross-sectional descriptive study. Setting: University laboratories. Participants: A sample of 75 Spanish stroke patients and 18 healthy control subjects. Interventions: Not applicable. Main Outcome Measures: The Behavioral Inattention Test...
2017: Occupational Therapy International
M V Zamergrad, O S Levin
Vertigo, instability, oscillopsia and concomitant autonomic disorders are classical and well-known symptoms of vestibular disorders. At the same time, recent studies suggest that there are more complicated vestibular dysfunctions caused by the cortical projections of the vestibular system. The central vestibular system includes parietal temporal cortex and insular, anterior intraparietal sulcus, posterior parietal and medial parts of the superior temporal gyrus, singular gyrus retrosplenial cortex, hippocampus and parahippocampal area...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Benedetta Basagni, Antonio De Tanti, Alessio Damora, Laura Abbruzzese, Valentina Varalta, Gabriella Antonucci, Wai Ling Bickerton, Nicola Smania, Mauro Mancuso
Unilateral spatial neglect (USN) is a frequent consequence of acquired brain injury, especially following right hemisphere damage. Traditionally, unilateral spatial neglect is assessed with cancellation tests such as the Bells test. Recently, a new cancellation test, the Apples test, has been proposed. The present study aims at comparing the accuracy of these two tests in detecting hemispatial neglect, on a sample of 56 right hemisphere stroke patients with a diagnosis of USN. In order to evaluate the agreement between the Apples and Bells tests, Cohen's kappa and McNemar's test were used to assess differences between the two methods of evaluation...
December 2017: Neurological Sciences
Simona Spaccavento, Fara Cellamare, Rosanna Falcone, Anna Loverre, Roberto Nardulli
OBJECTIVE: Because of the loss of autonomy in daily-life activities, spatial neglect after stroke is one of the main causes of disability. According to the spatial domains, neglect can be divided into personal (body), peripersonal (reaching) and extrapersonal (far) space. We evaluated the effect of these subtypes of neglect on functional outcome of rehabilitation in stroke patients. METHODS: A total of 1350 stroke patients were consecutively admitted into our neurorehabilitation unit from 2002 to 2016...
November 2017: Annals of Physical and Rehabilitation Medicine
Rosaria De Luca, Viviana Lo Buono, Antonino Leo, Margherita Russo, Bianca Aragona, Simona Leonardi, Antonio Buda, Antonino Naro, Rocco Salvatore Calabrò
After experiencing a stroke in the right hemisphere, almost 50% of patients show unilateral spatial neglect (USN). Virtual Reality technologies offer impressive opportunities for both the rehabilitation and assessment of different cognitive deficits, including USN. A 57-year-old woman, affected by subarachnoid hemorrhage presented a severe left hemiparesis with severe cognitive and behavioral alterations, including temporal and spatial disorientation, reduction of attention and memory process, slowing ideation, USN, and depression of mood...
September 22, 2017: Applied Neuropsychology. Adult
G Rode, M Fourtassi, C Pagliari, L Pisella, Y Rossetti
Unilateral spatial neglect constitutes a heterogeneous syndrome characterized by two main entangled components: a contralesional bias of spatial attention orientation; and impaired building and/or exploration of mental representations of space. These two components are present in different subtypes of unilateral spatial neglect (visual, auditory, somatosensory, motor, allocentric, egocentric, personal, representational and productive manifestations). Detailed anatomical and clinical analyses of these conditions and their underlying disorders show the complexity of spatial cognitive deficits and the difficulty of proposing just one explanation...
August 23, 2017: Revue Neurologique
Giulia Sedda, Marcella Ottonello, Elena Fiabane, Caterina Pistarini, Anna Sedda, Vittorio Sanguineti
Unilateral spatial neglect is a neuropsychological syndrome often observed in right hemisphere stroke patients. The symptoms differ from subject to subject. A few rehabilitation approaches, e.g. prism adaptation, have demonstrated some effect in reducing the symptoms, but the underlying mechanisms are still largely unclear. Recently, neural models have been proposed to qualitatively describe cortical lesions, the resulting neglect symptoms and the effects of treatment. However, these predictions are qualitative and cannot be used to compare different hypotheses or to interpret symptoms at individual subjects level...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
John B Williamson, Damon G Lamb, D Brandon Burtis, Salsabil Haque, Eduardo M Zilli, Tigran Kesayan, Michal Harciarek, Kenneth M Heilman
BACKGROUND: Patients who present with spatial neglect after stroke often perform normally on tests for neglect after a few weeks. Whereas tests for neglect are often performed directly in front of a patient, in their actual environments many important stimuli may be present within their left or right hemispace. The presence and severity of neglect often depends on the hemisphere injured. It is possible, in chronic stroke, for spatial judgments to be influenced by an interaction of stroke laterality and the spatial location of stimuli...
August 16, 2017: Journal of Clinical and Experimental Neuropsychology
Chisako Köder Kamakura, Yuji Ueno, Yuzuru Sakai, Hisao Yoshida, Saiko Aiba, Akito Hayashi, Hideki Shimura, Katsuhiko Takeda, Keiko Kamakura, Nobutaka Hattori, Takao Urabe
BACKGROUND: Unilateral spatial neglect (USN) is frequently found in ischemic stroke patients. Because USN is related to poor functional outcomes, evaluating recovery from USN after stroke is critical. METHODS: Patients with acute ischemic stroke with lesions in the right cerebral hemisphere on MRI and exhibiting left USN were administered the Behavior Inattention Test (BIT) at 1 and 3weeks after admission. BIT improvement was defined as a ≥1-point increase in ≥4 of the 6 BIT subtests from 1 to 3weeks, or a total BIT score ≥131 at 3weeks...
August 15, 2017: Journal of the Neurological Sciences
Kazuhiro Yasuda, Daisuke Muroi, Masahiro Ohira, Hiroyasu Iwata
BACKGROUND: Unilateral spatial neglect (USN) is defined as impaired ability to attend and see on one side, and when present, it interferes seriously with daily life. These symptoms can exist for near and far spaces combined or independently, and it is important to provide effective intervention for near and far space neglect. OBJECTIVE: The purpose of this pilot study was to propose an immersive virtual reality (VR) rehabilitation program using a head-mounted display that is able to train both near and far space neglect, and to validate the immediate effect of the VR program in both near and far space neglect...
July 12, 2017: Topics in Stroke Rehabilitation
Ren-Gang Zhang, Sha-Xin Liu, Feng-Yi Wang, Xi-Chao Ma, Yong-Hong Yang
OBJECTIVES: To evaluate the effectiveness of repetitive transcranial magnetic stimulation (rTMS) and sensory cueing (SC) for improving hemi-spatial attention deficits related to unilateral neglect, upper limb function and independence of stroke patients. METHODS: An assessor-blinded randomized controlled trial (RCT) was conducted. Eligible stroke patients were treated with rTMS (n =17) or rTMS combined with SC (n =16) in addition to conventional rehabilitation measures...
March 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"