View clinical trials related to Hemispatial Neglect.
Filter by:Attention can be defined as the preparedness to rapidly and accurately respond to stimuli coming from the investigators environment and to effectively select between relevant and irrelevant information. According to a current model, visual attentional control is based on two separate groups of brain regions, so called brain networks. These networks control different attentional aspects (e.g., spatial/non-spatial attention) and they interact with each other. A disruption of these interactions can lead to attentional disorders such as hemispatial neglect. Patients with hemispatial neglect have difficulties directing their attention to the left visual field and they act as though the latter does not exist. To date, the interactions between the two attentional networks are poorly understood. The aim of this study consists in further clarifying different aspects of these interactions and their influence on visual perception in healthy participants and in patients with hemispatial neglect. Transcranial magnetic stimulation (TMS) will be the principal method applied in this study. TMS is a painless and non-invasive method, with which the activity of brain areas can be influenced temporarily. This allows us to draw conclusions regarding the functions and interactions of these brain areas. This study is designed to have a significant impact on the basic understanding of attentional control in the human brain and it can benefit the comprehension and treatment of attentional disorders, such as hemispatial neglect.
The aim of this study is to evaluate the feasibility and usability of newly developed exergames on exploring the hemineglected space of left neglected stroke patients. Furthermore to understand the experience of living with visuospatial neglect and to explore the users' experiences (patients and clinic staff) with those new exergames.
The purpose of this study is to evaluate whether 20 Sessions of 30 minutes with a visual and tactile scanning training in the personal, peripersonal and extrapersonal space combined with trunk rotation will be feasible and provide better results compared to 20 Sessions of 30 minutes of a standard visual scanning programme.
There is a lack of effective rehabilitation methods for visio-spatial neglect (VSN). By using virtual technology, a new method (virtual reality, VR method) has been created which focuses on stimulating attention networks: top down scanning training in a 3D game, combined with intense visual, audio and tactile bottom-up stimulation, also including visuo-motor training. Objective. To evaluate clinical and functional improvement in stroke patients with VSN, as well as before and after training with the new VR method Method:- An intense visio spatial scanning training, enhanced by directed visual, audio and tactile stimulation cues and feedback, also including visio-motor activation was designed in a VR game. The in-house developed software was based on the Tetris game. The VR method consists of an interactive 3D environment: a desktop computer, a monitor, 3D glasses and a force feedback interface. 15 patients with chronic (>6 months) visio spatial neglect was included due to right-sided ischemia. A VR neglect test battery including a Posner task were repeated three times during a 5 weeks baseline before the training started (to establish the chronic state) and again after 15 hours training (3x1 h for 5 weeks). Evaluation of a new method for training attention after stroke causing visio spatial neglect. The method has been designed for home rehabilitation and is well suited for a tele-medicine approach. It was built with standard components and is easy to manufacture at a low cost. The idea is to give access to effective training, to make it available at the stroke unit with the possibility for the patient to loan it it at discharge for home rehabilitation. The concept of an all in one, easy-to-use device for testing, training and outcome evaluation should be beneficial These preliminare results has been promising and indicates that the RehAtt™ method could become an further developed into an effective and stimulating intervention tool that would lower rehabilitation costs and reduce tiresome travelling to hospitals for training.
Problems with attention are a common and debilitating consequence of brain injury. Studies show that poor attention is the number one predictor of poor cognitive functioning one year post-injury. This is due to the fact that attention is a necessary component of more complex cognitive functions such as learning & memory, multi-tasking and problem solving. In many cases, individuals may exhibit problems with spatial attention known as 'hemi-spatial neglect syndrome' or simply 'neglect'. Many studies now show that the processing machinery of the brain is plastic and remodeled throughout life by learning and experience, enabling the strengthening of cognitive skills or abilities. Research has shown that brief, daily computerized cognitive training that is sufficiently challenging, goal-directed and adaptive enables intact brain structures to restore balance in attention and compensate for disruptions in cognitive functioning. The study aims to understand how our computer program can affect cognition and attention in those with acquired brain injury.
Hemi spatial neglect, or the tendency to ignore stimuli originating in a portion of the environment contra lateral to a cerebral lesion, can be a major source of functional handicap after stroke. The currently available treatments for unilateral neglect are scanning training, visual cuing approaches, limb activation strategies, visual imagery, tactile stimulation, prisms and sustained attention training.Mirror therapy improves the hand function in sub-acute stroke. Hypothesis: To evaluate the effectiveness of Mirror therapy in the management of stroke patients with unilateral neglect.
Problems with attention are a common and debilitating consequence of brain injury. Studies show that poor attention is the number one predictor of poor cognitive functioning one year post-injury. This is due to the fact that attention is a necessary component of more complex cognitive functions such as learning & memory, multi-tasking and problem solving. In many cases, individuals may exhibit problems with spatial attention known as 'hemi-spatial neglect syndrome' or simply 'neglect'. Many studies now show that the processing machinery of the brain is plastic and remodeled throughout life by learning and experience, enabling the strengthening of cognitive skills or abilities. The investigators own research has shown that brief, daily computerized cognitive training that is sufficiently challenging, goal-directed and adaptive enables intact brain structures to restore balance in attention and compensate for disruptions in cognitive functioning.
This study examines methods to better predict improvement of a hidden disability of functional vision, spatial neglect, following stroke. Spatial neglect is a tendency to make visual judgment and movement errors mislocating the body and objects in space. The investigators are using specialized statistical methods to compute the proportion of improvement accounted for by personal characteristics of each stroke survivor, the proportion of improvement accounted for by the unique visual-spatial errors made by each subject, and the proportion of improvement accounted for by each treatment administered. The investigators will also examine whether brain imaging predicts how rapidly improvement occurs. Lastly, the study tests whether improvements that are meaningful to the survivor can be measured in a way that still allows detection of small and scientifically eloquent performance changes.
To find out if spatial neglect following stroke and brain injury can be reduced using guanfacine, a drug that was shown to improve neglect in two stroke patients in a previous pilot study (Malhotra et al, 2006). In this trial, the effects of guanfacine will be examined in a larger number of patients, and there will also be a systematic assessment of whether the drug is only effective in patients with particular patterns of brain damage.
The aim of this study is to assess the effect of the drug rotigotine on the syndrome of hemispatial neglect and motor deficits following strokes affecting the right hemisphere of the brain.